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Home My WebLink About03807 - Technical Information Report �ij 'sw`— �` i ' , r.m%z�- rq"`�!�' S� � '��`�� l�� y� g � A ��`'�''�'�` � . �.� � ,r a � � � �� #'� � „ . . � �. r s. .. "r "� �y.7;... • J �• `.! :�� . ��,p�� l,.�` �"�'..� .y �. �i� � �!. -`A � ,x" � «.�a. ,r +F �� `�'�''.. t r�3ue ' �.. � �r��,6�,,. '�.r s' t*� �=�e. 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' � �� .�� H� .. �3'' ..,� i..� �� *� i�fi,�y,� d`0' '��.x � �� s .. : � �. , �''�k'.��..'�.at A:R S`��,��`_�� # � - 'J.F • ' wr BCRA � AFCH�TECT'JRE�iN?ERIOP SPACES / �� SC EYCE�ENGINEER;NG �� / /fI I� � PLANNING-lAN�SCAPE ARCHITECTURE � �� f,�.l �� w� �7 � � 380� _, � B � n 70 D TECHNICAL INFORMATION REPORT April 29, 2015 PROJECT: ENGINEER: Taco Time— Renton Highlands BCRA Civil Engineering 4114 N.E. 4T" Street 2106 Pacific Avenue, Suite 300 Renton, WA 98059 Tacoma, WA 98402 APPLICANT: PREPARED BY: Bellevue TT, LLC. Andrew Cirillo, E.I.T 3300 Maple Valley Highway acirillo@bcraengineering.com Renton, WA 98058 PROPERTY OWNER: REVIEWED BY: Betlevue TT, LLC. Justin Goroch, P.E. 3300 Maple Valley Highway jgoroch@bcraengineering.com Renton, WA 98058 I hereby state that this report for the Taco Time Renton Highlands project has been prepared by me or under my supervision and meets the standard of care and expertise which is usual and customary in this community for professional engineers. � 3AN G �1 �F WA;;'�l �rP_.' , Gj �w I��; C. . �' � •�� ,�7''� p' ,� rn � Z, ? � �-�-�^- ,r W � ' ' � � 4343� �w � �'S, �G 15 T ER� G1 SI�NAL �� Apr ,q 2O1� �:�9 P�9 COSI�n BCRADESIGN.COM � o� n � D Table of Contents Section 1 — Project Overview.....................................................................................4 PredevelopedConditions.............................................................................................. 4 DevelopedConditions................................................................................................... 5 Section 2 —Conditions and Requirements Summary................................................18 Section3 —Offsite Analysis......................................................................................20 Task 1 —Study Area Definition and Maps................................................................... 21 Task2 — Resource Review........................................................................................... 23 Task3 — Field Inspection............................................................................................. 28 Task 4— Drainage System Description and Problem Descriptions............................. 28 Task 5— Mitigation of Existing or Potential Problems................................................ 28 Section 4 —Flow Control and Water Quality Facility Analysis and Design..................29 Existing Site HydrologY �Part A) .................................................................................. 29 Developed Site Hydrology (Part B) ............................................................................. 29 Performance Standard (Part C)................................................................................... 29 Flow Control System (Part D)...................................................................................... 31 Water Quality System (Part E).................................................................................... 37 Section 5 —Conveyance System Analysis and Design................................................48 Section 6 —Special Reports and Studies...................................................................57 Section7 —Other Permits........................................................................................58 Section 8 —CSWPPP Analysis and Design .................................................................59 Section 9 —Bond Quantities, Facility Summaries, and Declaration of Covenant........60 Section 10—Operations and Maintenance Manual....................................................61 Appendix A—Drawings BCRADESIGN.COM 2 � 00 n � D Table of Figures Figure 1-1 T/R Worksheet ................................................................................................................... 6 Figure 1-2:Site Location � ................................................................................................................... 11 Figure 1-3: Drainage Basins................................................................................................. ............. 12 ' Figure 1-4: Water Qua(ity Subbasins................................................................................................ 13 Figure3-5: Conveyance Exhibit......................................................................................................... 14 Figure3-6:Soil Map.......................................................................................................................... 15 Figure3-1: Tributary Map ................................................................................................................ 22 Figure 3-2:Sensitive Areas Map....................................................................................................... 24 Figure3-3: Flood Map ...................................................................................................................... 27 Figure 4-1: Duration Analysis Plot.................................................................................................... 36 Figure 4-5: Underground Detention System Details......................................................................... 42 Figure4-6:StormFifter Details.......................................................................................................... 44 Figure 5-1: Conveyance Sizing Areas................................................................................................48 Figure 5-2: Pipe#111 KCBW lnputs.................................................................................................. 49 Figure 5-3: Pipe#111 KCBW Backwater Outputs–100 Yr............................................................... 49 Figure 5-4: Pipe#121 KCBW lnputs.................................................................................................. 50 Figure 5-5: Pipe#121 KCBW Backwater Outputs–100 Yr............................................................... 50 Figure 5-6: Pipe#211 KCBW Inputs.................................................................................................. 51 Figure 5-7: Pipe#211 KCBW Backwater Outputs- 100 Yr................................................................ 51 Figure 5-8: Pipe#221 KCBW lnputs.................................................................................................. 52 Figure 5-9: Pipe#221 KCBW 8ackwater Outputs- 100 Yr................................................................ 52 Figure 5-10: Offsite Pipe Relocation Tailwater................................................................................. 54 BCRADESIGN.COM 3 � 00 (� � � Section 1 — Project O�erview The proposed project is the redevelopment of a single parcel, 1023059132, zoned CA-1 to a commercial use. Currently the project site consists of a single commercial unit and its associated parking, encompassing the entirety of the 0.77 acre parcel.The proposed redevelopment of this project will consist of the relocation and reconstruction of the existing commercial building, a Taco Time restaurant, and the construction of a second commercial building. This redevelopment will also include the associated parking and associated utility improvements, such as water service connections, sanitary sewer connections, gas connections, and power and communication services. The design of the second commercial building has not been fully completed however, is considered in the design of the stormwater management system and is therefore shown throughout this report. The total area of the building and associated site features, such as parking and sidewalks, have been assumed as the most conservative scenario for the purposes of this report. The stormwater management system will therefore be adequate for the site. Associated stormwater drainage improvements will include the relocation of a public storm main traversing the site as well as the installation of an underground detention system to control the flow of onsite stormwater. The site is Iocated at 4114 N.E. 4th Street in Renton, Washington near the intersection of N.E. 4tn Street and Union Avenue as shown in Figure 1—2 at the end of this section. Predeveloped Conditions The predeveloped site consists of a single commercial building, a Taco Time restaurant, approximately 2,700 square feet in size. The remainder of the site consists largely of the parking area associated with the commercial building with a number of small landscaped areas. The general topography of the site consists of 7 feet of gain across the site from the southeast corner of the site to the northwest corner of the site. A generally flat site, there are no steep slopes on or near the project site. The existing site drains to catch basins located throughout the site.The runoff from the site is split in two directions leaving the site from the southwest and southeast corners. The stormwater leaving the site from the southwest corner is conveyed south across N.E. 4th Street in a storm main discharging at an outfall located in Maplewood Creek. The stormwater leaving the site from the southeast corner is conveyed east parallel with N.E. 4th Street for roughly 100 feet before entering a storm main and ultimately discharging at an outfall located in Maplewood Creek. BCRADESIGN.COM 4 � � co n � D Developed Conditions The proposed site is designed such that the developed conditions will mimic the predeveloped conditions. The proposed site will contain two commercial structures with the remainder of the site consisting largely of the parking area associated with the two buildings and associated landscaped areas. Interfacing with existing improvements on all four sides the developed site topography also mimics the predeveloped site topography. The proposed site will drain runoff to various catch basins throughout the site. These catch basins will be draining to several underground detention tanks that will be used to regulate flow being discharged from the site. The stormwater entering the detention tanks will also undergo water quality treatment from a treatment train of StormFilters located within the conveyance system (see the StormFilter units A-E on page 13) The developed site will also include the relocation of a public storm line traversing the site carrying I offsite stormwater. The replaced line will be moved west, parallel to the lot boundary, and will be upsized from a 24" corrugated metal pipe (CMP) to a 36" ductile iron (DI) pipe with coating treatment. Though the site is not tributary to this pipe a backwater analysis was performed to �I ensure capacity for the upsized section of pipe, the calculations and results of the backwater �� analysis can be found in Section 5 of this report. �, The developed site will also include the relocation of two private storm lines which traverse the site. In total 145' of one pipe and 193' of another witl be rerouted and replace with 147' and 195' of pipe respectively. The western pipe being rerouted is currently located within the project and received runoff generated within the project in the existing condition. In the developed condition the pipe's associated catch basin will be located outside the project site and will receive no runoff generated onsite. As no runoff is being added from the project site to either section of relocated pipe neither were reanalyzed for capacity. BCRADESIGN.COM 5 KItiG Cc)UtiT1'. �L'.�SHItiGTC)ti, SL'RF.�CE �'ATF.R I�ESIGN I�taN['At_ TECHNICAL INFORMATION REPORT (TIR} WORKSHEET Pa�t 1 PR�JECT OWNER AND Pa�t 2 PROJECT LOCATI�N AND PROJECT ENGINEER DESCRIPTION Project Owner Project Name Taco Time Renton Highlands Phone DDES Permit# Address �ocation Township z3 North Range OS East Project Engineer �ust�n�oroch Section lo Company BCRA Site Address 4114 N.E.4th Street Phone (z53)627-4367 Renton,WA 98059 Part 3 TYPE OF PERMIT APPLIGATION Part 4 OTHER REVIEWS AND PERMITS —_ _ ❑ Landuse Services ❑ DFW HPA ❑ Shoreline Subdivison 1 Short Subd. / UPD Management ❑ COE 404 � Bui � ices ❑ DOE Dam Safety � Structural M/F ommerica / SFR RockeryNault/ � Clearing and Grading ❑ FEMA Floodplain ❑ ESA Section 7 � Right-of-Way Use ❑ COE Wetlands ❑ Other ❑ Other Pa�t 5 PIAN AND REPORT INFORMATION Technical Information Report Site Improvement Plan (Engr. Plans) Type of Drainage Review Full / Targeted ! Type (circle one): Full ! Modified / (circle): Large Site mall Site Date (include revision Date (include revision dates): dates): Date of Final: Date of Final: Part 6 ADJUSTMENT APPROVALS Type �circle one): Standard r Complex ! Preapplication 1 Experimental / Blanket Descnption: (include conditions in TIR Section 2) Date of A roval: BCRADESIGN.COM 6 2009 Surface Watcr Dc,ign?�tanual 1 9 ?009 1 i�l\G COC�tiI'Y. l�',�SHI\c;TO�, SC:RFACE �1�',�TER DESIc;'.�I I�dANt7AL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 7 MONITORING REQUIREMENTS Monitoring Required: Yes No Describe: Start Date: Completion Date: Part 8 SITE COMMUNITY AND DRAINAGE BASIN Community Plan :East Plateau Special District Overlays: urban oesign�iscr�ct o Dfaitlage B8SIf1:Lower Cedar River Basin StOfmWatei' ReqUi�ementS: Flow Control Duration Standard(Forested Condition) � _ Part 9 ONSITE AND ADJACENT SENSITIVE AREAS ❑ River'Stream ❑ Steep Slope ❑ �ake ❑ Erosion Hazard ❑ Wetlands ❑ Landslide Haza�d ❑ Closed Depression ❑ Coal Mine Hazard , ❑ Floodplain ❑ Seismic Hazard ' ❑ Other ❑ Habitat Protection ❑ � Part 10 SOILS So�l Type Sfopes Erosion Potential AgC 6°�-15% Low ❑ High Groundwater Table (within 5 feet) ❑ Sole Source Aquifer ❑ Othe� ❑ Seeps/Springs ❑ Additional Sheets Attached BCRADESIGN.COM 7 ?009 Surfacc ��atrr D��i�;n Manual 1 9 �U04 2 KItiG COtrVTI". ��'ASH[NGTON, St'RFACE W'ATER DESI(�:�I htANti�L TECHNICAL INFORMATION REPORT (TIR} WORKSHEET Part 11 DRAINAGE DESIGN LIMITATIONS __ _ ___ _ _ __ REFERENCE LIMITATION /SITE CONSTRAINT ❑ Core 2—Offsite Analvsis , ❑ Sensifive/Critical Areas ❑ SEPA ❑ Other ❑ ❑ Additional Sheets Attached � ' N Part 12 TIR SUMMARY SHEET rovide one TIR Summa Sheet er Threshold Oischar e Area Th�eshold Discharge Area: Taco Time Renton Highlands name or descri tion Core Requirements (all 8 apply) �ischar e at Natural Location Number atural Dischar e Locations: 1 Offsite Analysis Level: 1 2 1 3 dated: Flaw Control Level: 1 2 3 or Exemption Number incl. facili summa sheet Small Site B s Conveyance System Spill containment located at: Erosion and Sediment Control ESC Site Supervisor: rBo Contact Phone: Tso After Hours Phon - rso Maintenance and Operation Responsibility: Privake ! Public If Private, Maintenance � Re uired: Yes /No Financial Guarantees and Provided: Yes / N �iabili Water Quality Type: Basic 1 Sens. Lake / nhanced Basic / Bog (include facility summary sheet) or Exemption No. Landsca e Mana ement Plan: Yes No S ecial Re uirements as a licable Area Specific Drainage Type: CDA/ SDO ! MDP / BP ! LMP ! Shared Fac. None Re uirements Name: Floodplain/Floodway De6neation Type: Major / Minor ! Exemption None 100-year Base Flood Elevation (or range): Datum: NGVD 29 Flood Protection Facilities Describe: Source Control Describe landuse: (comm./industrial landuse) Describe any structural controls: BCRADE I N.COM 8 2009 Surfacc VVater Dcsi�n Manual I 9�'009 3 _� K(�c� ('Ot'tiT1'. �1 ASH[tic;TO�. ti�:RF,-�CE �L"ATER DESIGV I�tAtit'AL TECHNICAL INFQRMATION REPORT (TIR) WORKSHEET Oil Control High-use Site: Yes No Treatment BMP: Maintenance Agreement: Yes No with whom? Other Draina e Structures Describe: Part 13 EROSION AND SEDIMENT CONTROL REQUIREMENTS MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION AFTER CONSTRUCTION � Clearing Limits � Stabilize Exposed Su�faces � Cover Measures � Remove and Restore Temporary ESC Facilities � Perimeter Protection � Clean and Remove All Silt and Debris, Ensure � Traific Area Stabilization Operation of Permanent Facilities � Sediment Retention ❑ Flag Limits of SAO and open space preservation areas � Surface Water Collection ❑ Other ❑ Dewatering Control � Dust Control ❑ Flow Control Pa�t 14 STORMWATER FACILITY DESCRIPTIONS Note: Include Facili Summa a�d Sketch Flow Control T e/Descn tion Water Qualit�r_ T elDescn tion Underground Tank � Detention ❑ Biofiltration ❑ Infiltration ❑ Wetpool , ❑ Regional Facility � Media Filtration Stormfilter Cartridges ❑ Shared Facility ❑ Oil Control ❑ Flow Control ❑ Spill Control BMPs ❑ Flow Control BMPs ❑ Other ❑ Other BCRADESIGN.COM 9 _'Op9 Surtacc«atrr Dcsign '�4anual � y -'�li)U 4 KItiG COUNTY. WASHINGTON, StiRFACE Vb'ATER DESIG�I MANUAL TECHNICAL INFORMATION REPORT (TIR) WORKSHEET Part 15 EASEMENTSlTRACTS Part 16 STRUCTURAL ANALYSIS � Drainage Easement ❑ Cast in Piace Vault ❑ Covenant ❑ Retaining Wall ❑ Native Growth Protection Covenant ❑ Rockery >4' High ❑ Tract ❑ Structural on Steep Slope ❑ Other ❑ Other Part 17 SIGNATURE OF PROFESSIONAL ENGINEER I, or a civil engineer under my supervision. have visited the site. Actual site conditions as observed were incorporated into this worksheet and the attached Techn�cal Information Report. To the best of my knowledge the infonnation provided here is accurate. sr ned/Dare , i i BCRADESIGN.COM 10 '009 Surfacc Watcr Dcsign Manual I 9;2009 5 B 00 n � D FiQure 1-2:Site Location SAS • N�°tl� 5' PJ= �ir ;at � Hies Consiructron Dance Yer Socks Creativ� ■ �t Off Mobile NE 7th PI ^�h" DJService ��c" Q' +.0 } " p ' z NE ith St � � = 9 S , � `= NE l�h St NE 71h St � o,, a , � Q c '�k�- � o < � � �° I D � N�6th Ct Remington d y ��., `rQ� � Nf 61h PI Scents F` -� � r�n ►tj�6t�P� � Forestview � � c � Apartment� � 6 IE 6th PI D p � � � ° NE61t+�t Z � � � NE 6th 5t �' N�6th St �`� w NE fith St NE 5th Ct � � Skyline Sedan . NE Sth i�t �S�� NE 5Ih Ct n Keepsake � � Serwces L`t o � � Photo Classes � n NE Sth PI r ^J C rz*� �y�5th Si C NE Sth St � �- � Chilctt�me � ti q ? m � NE 5th`� D NE Sth S? 2 O �c T � z I � r" Safeway } D � NE 4th PI 24 Hour � Highlands � Fitness Prima Care s By Creme ? Planet eronze ry Pap �Creme Tanning& PROJECT SITE PiZz Airbrush Stud�o f . lth St NE 4th St NE dth St NE 4th St �- �`" `." .� Gar1's Jr f1 i� Les Schwab Unitecf 5tates � T�re Center d Post d(fice � Grass, NE 3�d Ct � Charles Storage � �3rd Lr. One On 4th NE 3rd C! Q c �. NE 2nd Ct �=� D # n � 3 Nerrtaqe NE Znd PI � "— m NE Park _ ..p � – � � 2�, ;�, � ;� 4 NE 2nd Ln � m - m � NE 2nd St �f�� T � European � NE BCRADESIGN.COM 11 � . Propose Basin Map TACOTIME - RENTON HIGHLANDS � oa.ioi5 D i3_'�5 � THRESHOLD DiSCHARGE AREAS I♦ �i w � I '►� � � � �. � �1 �♦ I� �• I PERVIOUS IMPERVI OUS ♦ � •a�� BASIN SURFACE AREA SURFACE AREA `�f ��_ ! �,f� OVERDETAI N EA ��, '� � (ACRES) (ACRES) � ♦ ONSITE — — - - -- — -- -- - --�� DETENTION 0.041 0.627 UNCAPTURED �� i �' '� � � � 1 ' ' � � AREA O.Q44 D 0 , ( � i ' OVERDETAINED 0.027 0.016 � .,� � i � AREA � _- �� NS TE � � '� TOTAL 0.113 Q.654 , � �� TE TI N A EA .� � ,. ; �� 2Q 1� � LO � � � O O O O � � I ' ��! ♦ ~•~ e u a I ' ., ��. a a I O i ° e' � 4 �^�' � G� O O O O ;j ;i�ALE 1"= 2G� � � < i � � ; ' d , o . I . , - � - ' � e a r�- 1 � # � � � � ° �� a � � I � � • � . � � I ` 4 � '� . la ° a -_. ___ _. .._ ' f • . . '7 n%r/i'T!��{ � ' I � O 1 � � ------ ` ' b _ � a 1 I �J __�_ . - _,.__.s____ ' I I J .�� . , � n i '' 'v . ; � � / � LOCATION OF � � . a � � � `' � ' —� {% ;� � URE BUILDING `_� • � • '� ' � � i � ` � I� j� ' DRVE T� OUGHIITI�RE ° .' ---- �� ' , L f � ,� I ° ' _ {� � � G� _ ' ' � � � � ` ' �� Q �_._� � � _�__________��________ ____� _ � � ' . � � , k� ufi-�: ,,�,��u�%�`�' � ! �' � � ' & � � � �` � �� ' ��-- � � - - r � I � � ` I � ' e I � � � '� t I i � � \' '� I � 1 ',. .' �� ,,, ` d :� __ ._.__ ",-.. I : d Od Y � 11 \ _._.. __�� ---Z:--- � "' \d OS • Zti ` � - - _ c � �tl � \ � • � � k i , �:. � � • �a �L L J° �' r � ,�� , - �• i I. ' ' .� - � � _ �' _ �_ '�__--�'�.,��' � ' .�. L�,� -- sk _ . '�,r 9►' - l� 1 l � I i ~� � \ � i°` 1' 44 '! � f fI �� - �� ' � — — , � " !i - ,� �,��,'� - !__ — �,..w 1 '� �'___ - - - —_-- —' __ j -•��•---._ L.t-.� i�.ir_ ` -��?1_ � _ - _ � � . ; „ �i 1 � a � --- _' . - - - ' - . z I �� j ' �-�+ -- � ---- f =� �� j --- r T ' . � _ __ __ � = _ .��_� �, , ` �—�� ~ ..—._ ____--= -- ---_ -----j _ _ .—. --:_�1_ — - _,_ �.. ; ,: _ � ' I �.----- �a t_��. � ��:. ' � — - -- - - -_ ;, ,. - � ---_ - -- _— -. - _ _ T R('RAf1Lc,�ni rnnn� 1� ,�_. � Water Quality Basin Map TACO TIME — RENTON HIGHLANDS n � 04.2015 132J � THRESHOLO DISCHARGE AREA� ♦'� � /� �� PERVI OUS IMPERVIOUS _ ` ��, �~ �� '�` '�"�� • I BASIN SURFACE AREA SURFACE AREA . -- f _ (ACRES) (ACRES) ;�, �� '.i ar .A�f .. - - ��, � � i -- -- - - _- _- __ - - - -- - - - - -- � BASIN WQ11 0.030 0.226 � � �T �CB �f 17 - STQRMFILTER D �' '- ' I � 1 BASIN WQ12 0.011 0.027 � I �, CB #18 - ST4P,MFILTER E j I BASIN WQ21 0.015 0.145 �i � \ � j � � �. � 1 BASIN wo22 o.oi2 0.�00 ♦ ( �� BASIN WQ11 � � TOTAL 0.068 0.498 1 � � I �� - �_ ;- I1 a � o o _ r��`'TES= �- �e . , ..i N 1_ TOTAL BASIN W�l l AREA = 0.256 A�',RES � � I ° °` e a d o a o 0 0 _ TOTAL BASIN WQ12 AREA = 0-038 ACRES i - _. TOTAL BASIN WQ12 AREA = 0.160 ACRES � � ' r f � • • . ° ' i 4_ TOTA� BASIN WQ12 AREA = 0.112 ACRES � I � � ° � __ a� • L�1.� J !J -./U .:.y_� � 4 a . _.. • • � ' � � Q � . 5��: ��-_ZQ� � , � � � s � , � . — �� — � � I � � , a . � � I I a � .�-- . � � � �OCATION OF . M O . (� +� � � � � Z i FUTURE BUiLOiNG • '�; � � I -LOCATION OF FUTURE ; z � � i � Q DP..IVE THR��UGH �, , � � , � m i . Q � i :� jj � d� • , m • $ _�-��cl�t�,j �� ---- -- -- -� - -- ; i ', a ~ ._.r � � � 0 �. I � . � �� ' CB #12 - STORMFILTER C i _.\ \\ :, o� � a I � \ —' ..--��- -- \\4 ; �\ \ \ � ._. • f \� � � � � � < ,� — � . � .�. �� BAS I N WQ22 ' �� ' - _ ' • * — - _ r�.: ��, - . CB #10 - STORMFILTER A � � � �•. �r �f � �,� �-- ._ � - ° —- or � CB #11 - STORMFILTER B — — � ` '� " - - � , ► , � •,: i - . __ - � .� 1 -- — — -- � , � , _____ , ,— i T - . `� �. - �„— - � ; _�.. _ - -- � ---_______ _ _ .._ — f -- .. _ _ _.� f _ _ � _ _ , - _ __ -- � ____ , r _ . �__ _:,� -,. � .� _ , � __ _- ._ --_—�-_ - - , -- � � . _ . .___ � � �A — * --- ; _ � _ ---- ---- — — �. _ _ � __ - -- � _ � -�___ _ _. � �S- ---�� .� -_. _ - � — —--�� -- � �..� --: _` __.,.,. . .,� - _ . - - ,. � �- . _.� _ _ 4- � - _ — - -- � _ ---�� , -�--r�..�.,�—.--i��---�-�..�. „�_� _ ---- i -,.� ` � - , �_____ — -- -� - - �..--- ___� ' _ : _� - .._ L_r,- _ -- -- - � �� -t ____= � - - - _ _ _� � a ____ - '�'�`'� a�annccir,ni rnnn �� - -- -- ----1--� � Conveya nce Exh i bit TACO TIME — RENTON HIGHLANDS W � oa.2oi5 D 13245 - � )� -- � �`�� - _ ' ' I �� ; - SS � 5s ;�—_ --�..> ; � � � _ __ CB 3 ' `e _— .� s: _ ._ tt- ^�1 ' �� I = - - - - - "' �� ' ---- - , � � _ _ --� —_ . _-- -- -_ -- � - -- ---�.__ - _ , ; :: .--.-y-;�.,�, � �_--, - --- - _ —� ---- - _—.� , i •�� __ �_ _ -- -_ �__._ - -- ';• _. _ � �$ 14 - -- � .. ,, � ___ , __ __ _ t� Cg �t p3� ^ �--- CB �t fi CB �17 - STO LTER D � � � � CB �Q7 �a� � P111 � � _ �B �100 � CB �18 - STORMFI�TER E � , �, P121� CB �06 i � _ � , ._ � i � � _ , (:B �05 _ : _ � � �, '_ - . � ?o �o o ��o : _, .. _ -- __ � ! r--- , F C6 #�� , s._� . _ j �- a ; � ; _. ;, .. - - � _ .: �= _ __. ; $ � _� `—.�_.` (� � a a l , '. _ �.�.__. . ..__. ._.. , ' _ SI�ALE 1"= 20' _ _, Cg �2p !� . , , - � � �� , —-- _ o - s - `��, i _ � - � --- ;� \� s { i V � � t _. � _ .--- ... z ��— ____. . .. .. . _. __ i P;- � , , i =�-�r;;%�i � � a� . --�_ � . "�' —�.-- --- TTOFF , �' _� , � � � �,j { � PIPE N0. 3 � i� � ° �' ' - ' , ' t .s � �------ , �w�__ � �I I i �� ' �4� . e�, os �/ � f � ' F t ! d � ' fJ . . ._. . .._._.___"..____ . i J� '�J 1 . '� � �� i �. �� s1� . � ,. � � i .,. + r � �� . I � .._. �� L � �� . � B r— � . I 1� - _.__ . ' � � '� � .. i r � C ' _ d �� / $ i j �I �� C.B #�� '_ ' a _ _ __ p5 ' i .lv• ; ' ^ . i `__--�-__--�--I�------------------ TTOFF � ;`t , ' ' i � ._��::1,�.u��.1:1�,, PIPE N0. 2 -,� ' � � M & ; 3 �'_�. �. � _ �__ ___ _ , + � ; _ = t. I ,, , ,_. � � ' ' CB 12 - STORMFILTER G ! i a ___ � i � � � -, � � ! � i _ -- ____ - � _ a_;---- s � __ _ -_ 1 � � - --_ �oa _ � x��- -- � �� C 08 � � CB 11 � STORMFILTER�� P211— _ - A ��_ _ . _ —___ ' . . i � e � - � '� ` CB #09 �� # , ,_ _ �TTOFF CB :�04 ' - � � a , _ ___- - -_ :t � ,, �B_#10 ,. ' ' PIPE N0. t CB 03 ,� , __ �� ,� �` �` , ` �" � i � ,; , ��;� ,` � �� ;,�� '° �, t 4 '; _ •�- ��_ _ CB #1Q - ORMFILTER A �"' - - r.. � � I Y7�` -- � ,- _.>_. , �t � � l , ti --._ � __ _ - - 44 ,` � . �/ , . . _ CB �t � � � . - _��: __ _ -- _ � , � __ : � U.� _ ,� _ ; _ c� �� _ .� � � _ � �. '' r y T � • — �� }---�� .�- .:.,� �:.> _ ___ l ; � k '-�-—==��— � _ _ .� -- - __ , -e.— , �--.--_—__—.— ._,..�_� _ --_ __ ��._ _ _ j -- ; =` � -- � --- , —__ , . �. _. .- _ _�; __ �, = i �.— . --- � -- —� , . _ . „ ___ �. --- ____ - . � ��—^� � __ __ _ _ a _ __ •�.:_ ."....�� -- � � - - - ---=±��>_�.�;�,a�,— F — .� - T - . - .�.z..�- , - .�_� -�� ,�, ��,; �— _ #- —:��_..,�„�.�-- —„��_��-- � :,�, _- ._.. __-� � � � _— � � — __� '�,,,�.:--� _ __ . --___._ �__ _-- __ _ - BCRADESIGN COM 14 r — � � - __ _ _ _ _._�, .�_ __ m_ �,-- -- . ��— : � � � ��P--��9 County Area.WasM�gton 3 a (Taco Time Renton Highlands) s � _ 55�� s�zrr3e so� sfisiio s��xx so3z3o 56�e +�a�aw � � I � - � _ _ ,�� y-��c � ws� � � .c:.�_. !'@��I$� \ a:^p='v � X � �� x,� .. '� ��rI ' ; x ,� -_�, � �-'� � � �_. , . � Y' . `� � � y _. - , � €�.��•.� ' i �.# i ''..�W:. � � � ` �r ►•� I l� � " . L �� r.. y . sl: � y� �'�4 s�� +�� . ._�� .P� Y':ay.. �.. ! 3 �'s L 3.. r �� F.� �� .,..-». . . - .. Y T t ��..�c � ��ati'., f' � � �f �• � � N 'i� � : _. " _ P��`` , ; __ _ � ` - + � � _ ��4 � t _ . F '� '�� ' _ ; ' �. . ._ � ' - f� . 1' � "' I �{;-tw' ......_ : . - • 11 ;:� .., �` � .�i ti��C. .. f i � 1�"'. .J� 4�-n 1 .. . '� �-• #� '.. i; . �� .. ��}i t. -:��— �„T,. � * � �: � � � `� � . . - _ �� , �� _ _ i Q•_ ._ � " _._... r� � ,� . � .: �`y i>.�� u� .t I .. �++Y� -}r ^ � . � e� A '�'' . '°° '�.. �� . ' ..�. � �.a `, �-:^ . '5 . C�� S� 3' �n.+4. �ti,. 'i�' � r .: . .. �.: Ly, � . - �. . � : r .� � y /1 ,. ' k j�'' � . _ � _.. ' � ��` Y ��' � � �. ' e�� x � ��j � �� `� � . � . �..y� -i _ � '?s. .�.. .��,.��,� .n �� -� �� .at:R's:.l....x �� ,. . .. ' ____ �..�,._....""`r�rr_,�y�, � N � # ��.�,.��,�.. � .�:... ` � ;� t; ��,� �� ,�-- ;�; +..E � �,, - �r .��:� ,. � � o • , ��._��; �- , ,. . �, - , . -�x � i � - , r a .Y �-- _ T � � `� - ,fi � Q �, � .---:-- � .. � . y� :� , * � "' ��;�� . � - -� - '� , � �� . � � �� , � X,4 . � nC3 r� ``�r t� -----=„��. i'' � � '=.c � .� r� .� • '� ` 8 _ ^�'-aM'�' � _ � - �:�� r ' ;�� n _i� �. . , f { �a��._ e+ � . . j �� iS �. _ p'i y k k ,�2� � '= � ;��.. � � ' g'� � �� R �V� 3 �r �• "'� � y�; '. A ..., � :. � � . .- , �, �,Y � �' � y_",.�P� Y- � e.•9, .� K�:� � •,Y'f r �i �. � � '��_ '� � � Y N � suan. ?�t !u - _�,, „� y a +a4z �T�. a�`=_- �� }. -s - � , - e t "� � Aa `.1'� � �" I � ��A _ �;�_:t ,�,.; y%;� �r�� t� �,��! Y -.'.� ' � S�, � �' tE �� --�� - �r �:=� . .� 1""`:I""I�" �`�`�'t""i'c�, ��=�� N � € a��. - �. ��r��•ti wz5�o ��_��:�u w�o�� s��:i�� x:�_-� �_,� �_�� 3 3 �, Map sde:1:2,a10 iF pr:,eed on a patrait(ss�x u��>st�eet. � c R, N � __ _-- —' Metgs �, 0 35 70 140 210 - /V � °•�P��,:wa,r� c��;�:w��ss� r�n�:un�z�lavw�ssa BCRADESIGN.COM 15 �.sD� Natural Resources Web Soil Survey 12/12/2013 � Conservation Service National Cooperative Soil Survey Page 1 of 3 _� Soil Map—King County Area,Washington (Taco Time Renton Highlands) MAP LEGEND MAP INFORMATION Ana ol Int�nst(A01) � Spoii Area The soil surveys that comprise your AOI were mapped at 1:24,000. � Area oilnterest(AOI) Ston Spot O y Warning:Soil Map may not be valid at this scale. 8011� Very Stony Spot _� Soll Map Unit Polygona � Enlargement of maps beyond the scale of mapping can cause �+r Wet Spot misunderstanding of the detail of mapping and accuracy of soil line ' rr,� Sofl Map Unit Llnea " placement.The maps do not show the small areas of contrasting , Other soils that could have been shown at a more detailed scale. � Soll Mep Unit Polnte _ _ •. Special Line Features Sp�clal Polnt F�atur�s Please rely on the bar scale on each map sheet for map V Blowoul Ws1�r Features mea5urements. Streams and Canals � eorrow Pit Source of Map: Natural Resources Conservation Service Tranaportation Web Soil Survey URL: http://websoilsurvey.nres.usda.gov � Clay Spot � Raiis Coordinate System: Web Mercator(EPSG:3857) �^, Closed Depreaaion � Interstate Highways Maps from the Web Soil Survey are based on the Web Mercator � Gravel Plt „�, US Routes projection,which preserves direction and shape but distorts distance and area.A projection that preserves area,such as the „ Gravelly 8pot Major Roads Albers equal-area conic projection,should be used if more accurate d�s Lendflll calculations of distance or area are required. 'ai Local Roads � Lava Flow geck round This product is generated irom the USDA-NRCS certified data as of e the version date(s)listed below. � Marah or swamp . Aerial Photography Soil Survey Area: King County Area,Washington � Ml�e or Quarry Survey Area Data: Version 7,Jul 2,2012 � Mlscelleneous Water Soil map units are labeled(as space allows)for map scales 1:50,000 � Parennial Water or larger. � Rock Outcrop Date(s)aerial images were photographed: Jul 9,2010—Aug 20, 2011 .+ Sellne Spot The orthophoto or other base map on which the soil lines were � � Sendy Spot compiled and digitized probably differs from the background � Severely Eroded Spot imagery displayed on these maps.As a result,some minor shifting of map unit boundaries may be evident. � Slnkhole � Slide or Slip � Sodlc Spot L_.,... ._ _____.. ...,____ _ BCRADESIGN.COM 16 l tiun Natural Resources Web Soil Survey 12/12/2013 � Cons�rvatlon Service National Cooperative Soil Survey Page 2 of 3 Soil Map—King County Area,Washington Taco Time Renton Highlands Map Unit Legend King County Area,Washington(WA633) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI AgC Alderwood gravelly sandy loam, 28.7 100.0% 6 to 15 percent slopes Totals for Area of Interest 28.7 100.0% BCRADESIGN.COM 17 USDA Natural Resources Web Soil Survey 12/12/2013 � Conservation Service National Cooperative Soil Survey Page 3 of 3 � � � (1 � D Section 2 — Conditions and Requirements Summary This project meets the criteria for a Full Drainage Review, per the 2009 Surface Water Drainage Manual Amendment to the 2009 King County Surface Water Design Manual (SWDM 2009) page 1- 11. The application of the eight core requirements and 6 special requirements for the project are outlined below. Core Requirement �i1 — Discharge at Natural Location � Runoff from the developed site will be captured and conveyed into the existing conveyance system used. This system discharges ultimately to Maplewood Creek. Core Requirement #2 — Offsite Ana/ysis An offsite analysis can be found in Section 3 of this report. '� Core Requirement #3 — Flow Confrol I This project lies within the Flow Control Duration Standard (Forested Conditionsj area. A series of underground detention tanks have been designed to comply with the related flow , control requirements. The design and analysis of this system are more thoroughly covered ' in Section 4 of this report. The project has been deemed exempt from the Sto�mwater Flow I Control BMP Requirement. II Core Requirement �4 — Conveyance Sysiem An analysis of the capacity of the proposed conveyance system can be found in Section 4 of this report. , Core Requirement #5 — Erosion and Sediment Control I An Erosion and Sediment Control Plan has been included in Appendix A of this report. I, Core Requirement �6 — Maintenance and Operations I An Operations and Maintenance Manual has been prepared for the project site and has I� been included with this report in Section 10. , BCRADESIGN.COM 18 � � n � D Core Requirement #7— Financia/ Guarantees and Liability Financial Guarantees and Liability is not addressed with this preliminary submittal and will be addressed with the final submittal. Core Requirement #8 — Water Quality Water Quality standards are achieved through the usage of StormFilter cartridges located onsite.The design and analysis of this system are covered in Section 4 of this report. Special Requirement #1 — Other Adopted Area-Specific Requirements To our knowledge the project site is not located in any areas with specific requirements other than those addressed in this report. Special Requirement #2 — Flood Hazard Area Delineation As this project is not located in or adjacent to the 100 year flood plain this requirement is not applicable to this project and is not addressed. Specia/ Requirement #3 — F/ood Protection Facilities This requirement is not applicable to this project and is not addressed. Special Requirement #4 —Source Control This requirement is not applicable to this project and is not addressed. Special Requirement �5 — Oil Control This project site is not considered a high use site therefore; this requirement is not applicable to this project and will not be addressed. Speciol Requirement #6 —Aquifer Protection Area The project site is located within Zone 2 of the APA, as defined by the Renton Municipal Code (RMC) 4-3-050. Application of these requirements are addressed in Section 4 of this report. _ I BCRADESIGN.COM 19 � 00 ('� � D Section 3 — Offsite Analysis A Level 1 Analysis of the downstream conditions has been completed, per Core Requirement #2, Section 1.2.2 of the 2009 SWDM. As required both the downstream and upstream conditions were analyzed qualitatively for this submission. Upstream Analysis The project site does not receive any water from any offsite source and therefore no upstream tributary area was analyzed. Level 1 Downstream Anolysis Runoff from this site enters the Maplewood Creek, see Section 1 of this report for further details concerning onsite conveyance of stormwater runoff. Conveyed through a 36" CMP pipe the stormwater reaches an outfall in Maplewood Creek. The creek is designated as a Class 4 creek and flows south for roughly 2,100 feet. Passing through a 42" CMP Culvert the stream crosses under Bremerton PI NE and is reclassified as a Class 3 creek. The creek then continues to flow south for another 2,500 feet before joining with a second branch of Maplewood Creek. The creek is then once again reclassified as a class 2 Creek. The creek further discharges to Cedar River and ultimately to Lake Washington. Though there are reported drainage complaints downstream of the project site none of the complaints are within % mile of the project site. None of the complaints are in any way associated with or connected to drainage features that affect or would be affected by the proposed redevelopment. A map of the complaints and a list of complaints is provided in Task 2 of this section. The site is also fully encompassed in a zone of sensitive area designated for medium susceptibility to groundwater contamination, as shown in the map provided by King County's iMap services. The proposed redevelopment should pose no groundwater contamination concerns. A field investigation was completed by BCRA staff on 07/21/14. A summary of the site visit can be found in Task 3. BCRADESIGN.COM 20 B ao n � D Task 1—Study Area Definition and Maps BCRADESIGN.COM 21 Taco Time Renton Highlands .r � `t��GTre CT � � . . � � 7 .i� _ '!c eST3 t 5T � � �� .,1 . � . ��6'> � . ( , � . . , . x e:+` lal �� - . { � } T � £ i»�. E - _��_ ~ � � � �� '�� W._.. _�'�'.�.,,,._, � , � �M � � �' � 7 �c�sr»� � rssT++eT � � r�.��<„r'- i � � " �, � , r._f. '� _ �a � `�* � � ti H�sT*r sr �ce s�*�sr _ ; l�"�+ � � , � � � * ti �a�=� *' � PROJECT S(TE � �� r hE`T�e ST r-s � � �• ,_. c> �, �?� ' _ .. .� `;r.�. _.-. ?'1Ls ��' � ;' � � „�. ( _ DOWNSTREAM AREA %�, _� ¢ � ., _ �� *�` � � � ,�.� :::�.;f �.,_ ., �i � 'h e t n �, � : ` ` _ ,�-�_ _- � ;r ��; ,� �' - ��:' ��;� w G- ,Yi� t�r- NE�ta C T _. . .� q t�^.: � - -+ � :� tR"t � �• ;�f � .�:t � ,.�F �� T ,u.ti e ^��:T f- '� � } ro�� , 'ir `" T.. � � �f � � � � �� - t � �s � �; - _ � �2 � � 4.$.' . . YE l�i�u=� � � � .. '�E2Y�'>T � - ' _,.:�^K....._. . . ..,_ . .� � ... :�.�� : ?V£?N3 S7 � � . �� , . � � s�'' �,4�p � � � y . ' �� " , � _`�'�:ar> 4R"�c- � � � � � � �1 5 � tY�tSTCT ��' � NE 75T i� q' � � �F � � � � ..:.�F'Sr� � �' � � �:, „��+�'-- ;�,�K��c4,.��„ � o aoatt �.��tl� �_I ��J Baurxiary .f irycorporabed Ar�ea f"Tl Lakes ar� Large Ri�ers f'' l� � N4�untain Peaks 5tree� rnf�' Streams Cor�taurs (5ft light� N,gh„v�, 5hade� Relief 10A:9b0:100b �� La� Nighways Parcels The information incWded on this map has been compiled by King County staft from a variety o1 sources and is subject to change without notice.King Counry makes no representa[ions or warranties,express or implied,as?o accuracy.completeness,timeliness,or rights to the use of such informatlon. This document is not intended for use as a survey producL King County shall not be iiable for any general.special,indirect,incidentai,or consequential a � damages mcluding.but not limited to.Iost revenues or bst pro6ts resul6ng from the use or misuse of the information contained on th�s map.Any sale of King County this map or information on this map is prohibited except by wrRten permission ot King Counry. Date:�2�Z 3/2013 Source:King County iMAP-Sensitive Areas(http�?www.metrokc.gow,GlS,'iMAP) BCRADESIGN.COM 22 _ � ao [� � D Task 2— Resource Review BCRADESIGN.COM 23 � � Taco Time Renton Highlands �� -�� Y �_sn,��-� � ,: �� .� :�� r�sr � �� ^ ��-� � ,� �� . � � � > - �� . �° �� ,�:��. t- � � '� ��; a-� � _ �� '�`�, .� n� �� `�'1 ��, � , ��; � �� ,� �� l,l� —"er � � _- ' `. �,�Af YE�1t7�i`�Y��k,- � � ��f "�'�y,�.. � `� � �� u f('}F £�� v � �-� ��2� !tE sTN cr�� §I��,.: �tt �NE ST 1__ � � , �� ;� E, �i $4�� . �4 �`� ..� �� '�+ �' ��' 2 - d "'�-�, �� 4 � � �� >��.� < � a �r ' }~ �� 3 � �_ } a �S H�Sh!ST��.�� STtf ST= .-: � �-�e, � ' ��e:�` � �„�, � �� '�� `f � :.� � �� . ;�,'.� �."�,K ... � ��- � �s: �c�� . � ` �-�� '��s � ' �; t�`sTH ST� _ ;.,,�,; �' S `� , _ � �.;.:� ;� �� , e� � �_ � _ � �. � � �� r• *CTSIIr ��,�- __� _ � �,� �� z;;,�, � �� g o >�� t � � ;. �� -� �' - ��, „� �: � • & �- . �'�*��wr�r �� ; s: . � ' � . �� -� +� . `', � � � �� .� - . "=�= � � < �,,� ' ` ', DOWNSTREAM AREA F:� %�;.. -- � ,�� -, �, .::,� � f . �.��a�� - � . � �— ..�--� -�� , � �. _ _ �� . '�= a, � et � �� ,�� - ;� g _ � ��n�� ' ��- --- � �###��,,,��} ��: �, ' �,��,, � �� , � , - - _ �� \ �`'y �.. ��`.ca. .. - . :.�t"7;�c' � '' `,,��\ti \�'\ �� "N��}CT�. •'. —� — � � ,��L `�`�.�``-�`ti _ � � � '�'= � � ,,, � ,�,, � �[[##X��y � � , �-� _^'�<<ti��T. .�-� �ti� � �'� �', � �'\� . , -�.. . . L� ' � � � J� l ♦ t .� t ti � ��` � �-.. _ �� '_��1, � � � �\ � �k ��1 . � 'w .�r} a \`s��: � �"W� ��;..'1 � \ � :. .� \ �.-� ��`: 'i� ,;�'�';k �� \� � �' -. _'- '.7 � � � �'�� `� �`t � 4� , � �S� � :� �� ` t � -.� � "` � :.�� .�,� � �� ',. � � `, ,��::�.` � r'��"�. ',� �, �� ti * � � •� `� � �� q; ` � `k � . \ `��. � �`' i;tA�`` �. i '� �. \ "• � �v� y ��''4 "°'4 ``.'"9;� t '4 � �� '�r2Y�5T�� `��x` � '��'��'�;t��, � z"" � ' ��.��-. �`� � ♦ .� � V �`I:�T .�ya+. �.yt . . ,pe.. �;: '-T4;:�. t � •� T,�� -�:'�a��` ,�� .:~A �.p} p � �� L.�� •. =.."� �`�Y�� '°'_�� : 49�} [!c� .�j� ' M` '� "k�`�� . ,7'C.� ��' ��g, 4.,& � � <,. �.+�2 � y� �` �` �A' � .T � � ,` �� t; � y "'�a � '� ��.,•. `' �+�1ST''T� i, � Ff€1STPL �Q '� �z z � \ ` `� �., �� =�� N�� `� �� `ti �� , •, � �f� r� , � ,.�� ;C'I�'(108 King 4'ounta� O 40$ft• � �� `\ The information mclutled�n thu map has been compiled oy King Cowty;taft irm a var?Cy��r s�ur�es and is subject ic cnarge w�thout notice.King Counry makes no repres?rta:isas or warranues.express or imp:ie�.as to accura�y.compi��.�ne;s.f�meliness.or nghlc to the use of such lnformation. This document is not inlerdetl tor�se as a survey product King County shall rot be liab.e e. any yene�al.speaal,indirect,incidental.or wnsequential a � damages including,but not limited to,lost revenues or lost profits resuiting from the use or misuse or the information centained on[his map.Any sale of King County this map or intormation on this map is prohibited excepf by wrfrien permiss�on oi King County. Date:i2`73-2013 Source:King Counry iMAP-Sensitrve Areas ihttp:i,�wwwmetrokagov�GlS,�iMAP} BCRADESIGN.COM 24 Taco Time Renton Highlands ��d (_� C�uril� BoundarY • , u��od �ow ;� � Your�#ain Peaks � Lakes and large Rivers Ye�n Conb�us (5ft light� ,,;;; Streams �' iO��iOaO Charx�el Afigration Hazard Shacied R�lief � Jlreas Highways 1AOiD€RATE �j Incorpa�ated Area �� 5�� Sole Source Aquiier �""`�` � 5A0 Wetland � � SAO Larxlslide losal ,-��; SAO Coal Mine Parcels � SAO Seismic UYildliie Netw�k 5A0 E�asion 5A0 5tream � Chinaak Distributian � Ci�i ■ � 5ertsitive Area Notice an TiUe Cl�s 2 Prran�sai Drainage Gom{�laitrts � C3�2 S�nwrud Areas Susceptible t4 :��f �� Gr�undwa�erContaminatiQn (cor�t) (c¢nt) The informa6on included on ihis map has been compiled by King County staff from a variety of sources and is subject to change without no6ce.IGng Counry makes no representations or warranties,express or implied,as to accuracy,completeness,[imeliness,or rigMs to the use ot such information. This document is not intended tor use as a survey product.King County shall not be liahle for any general,special,indirect,incidental,or consequential a � damages including,but not limited to,lost revenues or lost profits iesulting irom the use or misuse of the intormation contained on this map.Any sale of Kmg County this map or information on this map is pwhibited except by written permission of King County. Date:12/13.+2013 Source:King County iMAP-Sensilive Areas f,http:/iwww.metrokc.gov,�GIS/iMAP) BCRADESIGN.COM 25 � � [') � D Table 3-1: Kinq County Drainacle Complaints (Current as of 12/13/2013) Complaint Rec No Problem Rec Date Address P�N 1 1986-1231 RD 12/3/1986 165 Bremerton PI NE 2525500360 2 1987-0456 DVR 3/16/1987 170 Whitman Ct NE 2525500460 3 2006-0081 DLE 1/17/2006 13715 139th Ave SE 3276150070 --� 4 1978-0070 EROSION 10/2/1978 13901 139th Ave SE 3276150140 - 5 1990-1020 DRNG 6/4/1990 13732 SE 1415t ST 5127000360 - 6 1991-0883 FLOODING 8/5/1991 13732 SE 1415t ST 5127000360 7 1991-0883 FLOODING 8/5/1991 13732 SE 1415t ST 5127000360 8 2012-0467 DES 6/14/2012 327615TRCT BCRADESIGN.COM 26 Taca Time Renton Hignlands '. '-'-. W .. � t NE tTrM yt � - - - � .. ;; `v.. tSTM� _ � � -"..'� � f �e- 'LJ � y�_�eTH ST �.! = W .-' -.. � ..»au a�� < � � ,�-� a . �_� '- -.._ x� �� ^ , ' � ,- _-�i-._-`' . ^ ;; 'b'F'p ' mu . .._::__ ��.:, _ ..:._1�e tZClsST .. � � NE t2r�!sr.�� NE t2r�r' :.:. ;�. � �F �� "'P � os�� trrHsr � wE tt xp� a � '`'��' '�y � � � �F, F � �;,; j�5 G . � � ....��r S ; ME 1RR''f Sf � � A� u��a�bd��. .j�� m'� #TN/.+� . .��1i gt � 1'1'�11[IfN ST �; � J, r 118'�� r: NE AiH ST � . � � NE giM PL �y = ,.. 2 � 3 � W �3T�t St - �. ` "�e _ � � «E rrM sr f� �srr��—'� � ; � ►�ar«n err� � Z � � � � � i � � � � � � � � � i � �arrr sr ; wE 6�*'GY +�+�erw sr � � � Z � m d � 'S,' F �,q r� �,t �sn.ss � W � "' ''�`� � � r � +vE� , ''"�`*�+cr � � w�sr»R � z e ��n,c-r a = 1 �'!_�'r - � _ � � < � � � � t� � � 5 � � �{rH sr �.__ � 1 C . . �� ..:..� � ��C1.`-�-�� E�ID C} � O i y �` NE�20 ST o . ,,,�a„d� PROJECT SITE t. � �� n 1�15f PL � NE 1Si GT � . � � a ��pE tS7$T ��T i� � `�J � a _ ..�A�� SE�� SE 3�D ST +�1; SIE ab il `�_ � � � � 9E�sr �I _ `��, <� ': �. � �i YN � `y ... �� I � Z� SE 19BTM R � � � �, _ ,'"�Ear� ' �4-��-�-� �' �M „.�� :_�_.._.�.-�� ; 5E_t4'2NLi Sf � SSTa� � $fiW � � t � � '� _ `<c � � � d }� a arH sr �� s�wr�sr � I, f �►+ �� t��hy1'Y Jr I' ��7YY a, �tZ�H gT S; ' � I, t 5� �' � � � � ��e ,� -�, ,�� '`.� ��T . � - � ., � s. � Ce�eiar Riwer� � �p�� l 'qo� 'tP'��`.�� s�c:�� y�by' �.., rn �. '�`f� a4} , ' �N-Mq c� �� r SE 16iN PL � � , � �'YAL-. �QQ- �i�� `T�� -.��'.k� �'�r�y�,t �-"'f��.__""'4_s'r '� �`�r + �� #�� Q�` E'�i � � '�� t ss f�r,.� ± `__ t �u+ ��i:' `�� a�. �r� aE t�ne sr F �w ss�enr«sr '�� 8!� � '� $ ' � '`� '� � t� � '-•,� aE tiersr sr � �` /f �»sni� 1 sE��+p sr � i � '�� ' � �` a�ra�sr �0 '��ty�, ' sEta�msr � ' sF"�Aiq�yi, �"� ; SEtsar�R �', � aE�e5ni sr � �- : �_" lJ o�Q vp- :' `- se te9TH v� � z: � � ��rh'at � � �1 {C I 2UOB Kw�q County _ 5$7 "� O 2273R �:.�r—`- --- �.@�I1(� �_I ��►tY ��]► M+gnrvaM 100 Year Floasdplain � Mo�ntain Peaks +4rta�ads Highways L� 5treets � Lakes and Large Rivers t��t� .nY�' Streams The information included on fhis map has been compiled by King County statt from a variety ot sources and is subject to change without notice.King County makes no representations or warrenties,express or�mplied,as to accuracy,completeness,timeliness,or rights[o the use of such information. This document is not intended for use as a survey product.King County shall not be liable for any general,special,indirect,incidental,or consequential a damages including,but not limited ro,lost revenues or lost profits resul6ng from the use or misuse ot the information contained on this map.Any saie of King County this map or intormation on this map is prohibited except by written permission ot King Counry. Date 12.%13l2013 Source:King Counry iMAP-Sensftive Areas(httpllwww.metrokc.govlGlS�iMAP) BCRADESIGN.COM 27 � 00 [� � D Task 3—Field Inspection A field investigation was completed by BCRA staff on 07/21/14 at approximately 2:00 pm. The weather at the time of the field investigation was sunny with no rainfall and a temperature of approximately 70 degrees. The onsite system as well as the offsite systems crossing the site were observed. The following were observed during the site visit: • There appeared to be no storm drainage problems during the visit. � The western most catch basin found in the driveway connection to 4th St. SE in the south west corner of the site appeared to have an outlet invert at a lower elevation that the downstream receiving catch basins inlet invert. This appeared to produce a minor amount of standing water but did not greatly affect the performance of the catch basin. With this one exception, there appeared to be no problems encountered with the stormwater conveyance system. • There appeared to be no existing flooding problems. • There appeared to be no overtopping, scouring, bank sloughing, or sedimentation. • There appeared to be no upland erosion impacts or landslide hazards. Task 4—Drainage System Description and Problem Descriptions There appear to be no known existing problems with the existing conveyance system. It is predicted that the project's improvements should not create a stormwater conveyance problem. Task 5— Mitigation of Existing or Potential Problems As there have been no existing or potential problems identified or predicted there are no proposed mitigation measures. ; i BCRADESIGN.COM 28 � � [� 70 D Section 4 — Flow Control and Water Quality Facility Analysis and Design Existing Site Hydrology(Part A) In the existing condition the site consists of a single commercial building and the associated commercial features such as parking and landscaping. The pervious areas onsite consist almost exclusively of maintained grass areas. The impervious areas consist of roof tops and impermeable paving.The parcel has a total area of 0.77 acres.The parcel naturally slopes towards the southeast corner of the site. Runoff generated onsite is conveyed off the site in two areas, both of which discharge to Maplewood Creek within % mile downstream.There are also no areas that are tributary to the project site. The site is underlain by soil type AgC, Alderwood gravelly sandy loam with 6-15%slopes. KCRTS categorizes the AgC soil type as part of the Till Soil Group. The rainfall region and scale factor applicable to the project site is SeaTac 1.0. Though the existing site is not in a forested condition the existing hydrologic condition was assumed to be in a forested condition as the site is found in the Flow Control Duration Standard (Forested Conditions) zone. Developed Site Hydrology(Part B) In the proposed redeveloped condition the site consists of two commercial buildings and the associated commercial features, such as parking and landscaping. Due to constraints on all four sides of the project general topography will largely mimic the existing condition. Though the site layout and configuration will change with the redevelopment natural drainage paths will be kept largely unchanged. Site soils are AgC, Alderwood gravelly sandy loam with 6-15% slopes. KCRTS categorizes the AgC soil type as part of the Till Soil Group. The rainfall region and scale factor applicable to the project site is SeaTac 1.0. The developed site consists of a single basin with a single flow control facility, an underground detention system. Because the flow control facility receives runoff from drive aisles in the onsite parking, which is classified as pollution generating surfaces (PGIS), that water is treated for water quality through the use of two StormFilter treatment trains located onsite. Flow control is , provided through the use of a detention system. Performance Standard (Part C) Runoff generated from the developed site is not fully dispersed and therefore will be controlled in accordance with the SWDM 2009. The project site is located within the Flow Control Duration Standard (Forested Condition) zone. Runoff generated onsite will experience sheet flow to onsite BCRADESIGN.COM 29 � � ('� � D catch basins being then routed to an underground detention facility before leaving the site. No BMP credits are used on this project therefore 100% of the contributing impervious areas were used in the design of the detention 100%of the pollution generating surfaces were used in the design of the water quality systems. Detention sizing was completed using KCRTS. Site soils are AgC, Alderwood sandy gravely loam with 6-15% slopes and are categorized by KCRTS in the Till Soil Group. The rainfall region and scale factor is SeaTac 1.0. The onsite detention system was designed such that the peak flows leaving the site were less than predeveloped (forested condition) peak flow rates ranging from 50% of the 2 year storm event up to the SO year storm event. Peak flowrates in the developed condition for the 10 and 2 year return periods were also checked to ensure that they were less than or equal to the peak flowrates for the respective return periods in the predeveloped condition. Runoff to be treated for water quality will be collected and treated by one of two StormFilter treatment trains located in-line with the onsite stormwater conveyance system. Water drained from the drive aisles will be routed to these two treatment trains while the two proposed structures roofs will be constructed from materials treated to prevent leaching and therefore are considered as non-pollution generating surfaces. BCRADESIGN.COM 30 � W n � D Flow Control System (Part D) Details and plans showing the location and orientation of the underground detention facility can be found at the end of this section. The following calculations were done in KCRTS to size the underground detention facility for the project site. It shall be noted that due to the uncompleted design of the second commercial building the precise amount of impervious are and pervious area onsite cannot be fully discerned.The values used in the following design and analysis have been determined to be a representation of the most conservative scenario for the second buildings design and therefore will be adequate for the design of the stormwater detention system. These values can be found below. Table 4-1: KCRTS Input Areas Areas Area Land Use Impervious Area Pervious Area (ac) Type (ac) (ac) > 0.78 Forest 0.000 0.767 a, � - - 0.000 0.000 a, L a Tota I 0.000 0.767 a', 0.66 Impervious 0.654 0.000 � 0.12 Till Grass 0.000 0.113 � a Total 0.654 0.113 Retention/Detention Facilitv Type of Facility: Ce�enrio� Taak Tank Diameter: 6.00 ft I Tank Length: 500.00 ft ', Effective Storage Depth: 5. 50 ft � Stage 0 �levation: 0. 00 ft I Storage Volume: 13574. cu. ft ' �iser Head: 5.50 ft Riser Diameter: 12 .00 inches Nu:nber of orifices: 2 Full Head Pipe Orifice # Height Diame�er Discharge Diameter (ft) (in) (CFS) (in) 1 0 .00 0 .44 0.012 2 3.00 0. 90 0. 035 4 .0 Top Nctch Weir: None Outflow Rating Curve: None Stage Elevation Storage Discharge Percolation (ft� {ft) (cu. ft) (ac-ft) (cfs) (cfs) 0. 00 0 .00 0. 0 . 000 0.000 0.00 0.01 0.01 17 . 0.000 0.001 0.00 0.02 0.02 34 . 0.001 0.001 0.00 BCRADESIGN.COM 31 � � n �o D 0.03 0. 03 50 . 0.001 0.001 0.00 0.04 0. 04 68 . 0.002 0.001 0.00 0. 14 0.14 246. 0.006 0. 002 0.00 0.24 0.24 438. 0. 010 0. 003 0.00 0.34 0.34 64C . 0. 015 0.003 0.00 0. 44 0.44 854 . 0. 020 0 .003 0.00 0.54 0.54 1076. 0.025 0 .004 0.00 0. 64 0. 64 1308. 0 .030 0 .004 O.CO 0.74 0.74 1547 . 0 .036 0.005 0.00 0.84 0.84 1793. 0 .041 0.005 0 . 00 0. 94 0. 94 2046. 0 .047 0.005 0 . 00 1.04 1 . 04 2306 . 0.053 0.005 0 .00 1. 14 1 . 14 2570 . 0.059 0 .006 0 .00 1.24 1 .24 2840 . 0.065 0.006 0.00 1.34 1 .34 3115 . 0.072 0.006 0.00 1.44 1 .44 3393. 0. 078 0.006 0.00 1.54 1 .54 3676. 0. 084 0.007 0.00 1. 64 1 . 64 3962 . 0. 091 0 .007 0.00 1. 74 1 .74 4251 . 0.098 0 .007 0.00 1. 84 1.84 4542 . 0 .104 0.007 0.00 1. 94 1. 94 4836. 0 .111 0.007 0. 00 2.04 2.04 5131 . 0 .118 0.007 0.00 2. 14 2.14 5429. 0.125 0.008 0.00 2.24 2 .24 5727 . 0.131 0.008 O.GO 2.34 2 .34 6026 . 0.138 0.008 0.00 2.44 2 . 44 6326. 0 .145 0.008 0 . 00 2.54 2 .54 6626. 0.152 0.008 0 . 00 2. 64 2. 64 6926. 0.159 0.009 0 . 00 2 .74 2.74 7225. 0. 166 0.009 0.00 2 . 84 2 .84 7524 . 0. 173 0. 009 0. 00 2 . 94 2 . 94 7821 . 0.180 0. 009 0.00 3.00 3.00 7999. 0 .184 0. 009 0.00 3.01 3.01 8029. 0 . 184 0.009 0.00 3.02 3.02 8058 . 0 . 185 0 .010 0.00 3.03 3.03 8088. 0.186 0 .011 0.00 3.04 3. 04 8=17 . 0.186 0 .012 0.00 3.05 3. 05 8�47 . 0.187 0.013 0.00 3.C6 3. 06 8176 . 0.188 0.014 0.00 3. 07 3.07 8206. 0.188 0.015 0. 00 3. 08 3.08 8235. 0.189 0.015 0.00 3. 18 3.18 8528 . 0.196 0.019 O.CO 3.28 3.28 8819. 0.202 0.021 0 . 00 3.38 3.38 91C8 . 0.209 0.023 0 . 00 3.48 3.48 9393. 0.216 0.025 0 . 00 3.58 3.58 9675. 0.222 0.027 0.00 3. 68 3. 68 9952 . 0.228 0. 028 0.00 3.78 3.78 10226. 0.235 0 . 030 0.00 3.88 3. 88 10495. 0.241 0. 031 0.00 3. 98 3. 98 10759. 0 .247 0.032 0.00 4 . 07 4 . 07 10991 . 0 .252 0.033 0.00 4 . 17 � . 17 11244 . 0.258 0 .035 0.00 4 .27 � .27 11489. 0.264 0 .036 0.00 BCRADESIGN.COM 32 � 00 n � D 4.37 4 .37 11728. 0.269 0.037 0 .00 4.47 4 . 47 11958 . 0.275 0.038 0 . 00 4.57 4 .57 12180. 0.280 0 . 039 0. 00 4. 67 4 . 67 12392 . 0 .284 0. 040 0.00 4 .77 4 .77 12594 . 0 .289 0.041 0. 00 4 .87 � .87 12%84 . 0.293 0.042 0.00 4 . 97 4 . 97 12961 . 0.298 0.043 0.00 ' 5.07 5.07 13124 . 0.301 0.043 0.00 5.17 5.17 13270 . 0.305 0.044 0 .00 5.27 5 .27 13396. 0.308 0 .045 0 .00 5.37 5 .37 13498. 0.310 0 . 046 0.00 5.47 5.47 13566. 0 .311 0. 047 O.C� ' 5.�0 5.50 13574 . 0 .312 0.047 O.CO ' 5. 60 5. 60 13574 . 0.312 0.356 0. 00 ' 5.70 5.70 13574 . 0.312 0. 920 0.00 �� 5.80 5.80 13574 . 0.312 1. 650 0 .00 i 5. 90 5. 90 13574 . 0.312 2 .440 0 .00 � 6.00 6. 00 13574 . 0.312 2 . 730 0.00 6.10 6 . 10 13574 . 0.312 2. 980 0.00 6.20 6.20 13575. 0 .312 3.220 O.CO 6.30 6.30 i3575. 0.312 3.440 0.00 6.40 6.40 13575. 0.312 3. 640 0.00 6.50 6.50 13575. 0.312 3.840 0 .00 6. 60 6. 60 13575 . 0.312 4 .020 0 .00 6.70 6.70 13575 . 0.312 4 .200 0 .00 6.80 6. 8C 13575. 0.312 4 .370 0.00 6.90 6. 90 13575. 0 .312 4.530 0.00 7.00 7 . 00 13575. 0 .312 4 . 690 O.CO 7.1a 7.10 i3575. 0.312 4.840 0.00 7.20 7 .20 13575. 0.312 4 . 990 0.00 7.30 7.30 13575 . 0.312 5.130 0 .00 7 .40 7 .40 13575 . 0.312 5.270 0.00 7 .50 7 . 50 13575. 0.312 5. 410 0.00 Hyd In�low Outflow Peak Storage Target Calc Stage Elev (Cu-Ft) (Ac-Ft) 1 0.33 ******* 0.04 5.06 5.C6 13�09. 0 .30� 2 0.24 **�**** 0.01 2 . E3 2 . 63 6908. 0 . 159 3 0.20 ******* 0.01 1 .80 1.80 4419. 0. 10� 4 0.20 ******* 0 .01 1.49 1 .49 3548 . 0.081 5 0. 18 ******* 0 . 02 3.16 3.�6 8482. 0.195 6 0. 17 �****** 0.04 4 .47 4 .47 11966. 0 .2�� 7 0.16 ******* 0.01 2 . 13 2.13 5407 . 0.124 8 0.14 ******* 0.01 3.07 3. C? 82G0 . 0 . "�88 ---------------------------------- Route Time Series through Facility Inflow Iime Series �'ile:ttpost.tsf Outflow Time Series File:rdout Inflow/Outflow Analysis Peak Inflow Dis�harge: C.333 CFS at 6:00 on Jan 9 in Year 8 Peak Outflow �is�harge: O . C43 CFS at �4 :00 on Jar 9 in �ear 8 BCRADESIGN.COM 33 � OD n � D Peak Reservoir Stage: 5.06 Ft Peak Reservoir Elev: 5 .06 Ft Peak Reservoir Storage: 13109. Cu-Ft . 0.301 Ac-Ft Flow Duration from Time Series File:rdout.tsf Cutoff Co�snt Frequency CDF Exceedence Probability CFS ° ° ° - 0 0 0 0 .001 25323 41 .296 41 .296 58 .704 0.587E+00 0.002 6583 1G.735 52 .032 47 . 968 0.480E+G0 0.003 8532 13.9�4 65. 946 34 .054 0.34�E+00 O.004 407� 6.644 72 .590 27 .410 0.274E+00 0 .005 6502 10.603 83. 193 16.807 0. 168E+00 0 . 007 3543 5.7i8 88. 971 11 .029 0 . 110E+00 0 . 008 3246 5.294 94 .265 5.735 0 . 574E-01 0 .009 2080 3.392 97. 657 2 .343 0.234E-01 0.010 1011 1 .649 99.305 0. 695 0. 695E-02 0.011 23 0 .038 99.343 0. 657 0. 657E-02 0.013 17 0 .028 99.371 0 . 629 0. 629E-02 0.014 20 C .033 99.403 0.597 0.597E-02 0.015 20 0 .033 99.436 0.564 0.564E-02 0.016 38 0 .062 99.498 0 .502 0.502E-02 0 .017 30 0 .049 99.547 0 .453 0.453E-02 0 .018 26 0.042 99.589 0 .411 0.41,�E-02 0 .020 34 0.055 99. 644 0 .356 0. 356E-02 0.021 38 0.062 99.7G6 0 .294 0.294E-02 0.022 2`7 0 .044 99.750 0 .250 0.250E-02 0.023 18 0 .029 99. 78C 0 .220 0 .220E-02 0.024 9 0 .015 99.795 0 .205 0 .205E-02 0 . 025 8 0.013 99. 808 0 . 192 0. 192E-02 0 . 027 6 0.0"�0 99.8-7 0.183 0.183E-02 0.028 13 0.021 99.839 0 .161 0.161E-02 0.029 8 0.013 99.852 0 . 148 0.148E-02 0.030 13 0.021 99.873 0 .�27 0. 12�E-02 0.031 15 0.024 99.897 0.103 0.103E-02 0 .033 13 0.021 99. 918 0.082 0.815E-03 0.034 6 0.010 99. 928 0.072 0.718E-03 0.035 6 0 .010 99. 938 0.062 0. 620E-03 0.036 12 0 .020 99. 958 0.042 0.424E-03 0.037 8 G.013 99. 971 0.029 0.294E-03 0 . 038 3 0 .005 99. 976 0 .024 0.245E-03 0 . 040 3 0.005 99. 980 O . C20 0 .;96E-03 0.041 � 0.007 99. 987 0 . 013 0. 130E-03 0.042 3 O.005 99. 992 0.008 0.815E-04 DuraLion Comparison Anaylsis Base File: ttpre.tsf New File: rdout.tsf Cutoff Units : �ischarge in ;FS -----Fraction of Time----- ---------Check of Tolerance------- Cutoff Base New �Change Probability Base New %Change BCRADESIGN.COM 34 � co [� � D 0.010 I 0. 99E-02 0. 69E-02 -30 .2 � 0. 99E-02 0. 010 0.009 -14 .0 0.013 � C. 65E-02 0. 60E-02 -7 .1 � 0. 65E-02 0. 013 0 .012 -11 .8 0. 016 I 0 .50E-02 0.49E-02 -2.3 � 0.50E-02 0 . 016 O .Olo -1 .5 0 .019 I 0. 38E-02 0.38E-02 0.0 � 0.38�-02 0.019 0 .019 0 . 0 0.022 I 0.29E-02 0.24E-02 -14 . 9 I 0.29E-02 0. 022 0.021 -4 . 8 0.025 I 0.22E-02 0.20E-02 -8. 9 � 0 .22E-02 0.025 0.023 -7 .3 0.028 � 0.15E-02 0. 16E-02 8. 9 I 0 . 15E-02 0. 028 0. 029 4. 9 0.031 � 0. 99E-03 0. 12�-02 16.4 � 0. 99E-03 0. 031 0.032 2 .2 0.034 � 0. 62E-03 0.72E-03 15.8 I 0. 62E-03 0. 034 0 . 035 4 .0 0.037 � 0.34E-03 0.33E-03 -4 .8 I 0.34E-03 0.037 0 .037 -0 .1 0 .040 I 0 .23E-03 0.21E-03 -7.1 � 0.23E-03 0 . 040 0 .039 -1 .4 0 .042 � 0 . 16E-03 0. 65E-04 -60.0 � 0.16E-03 0.042 0 .041 -4 . 5 0.045 � 0. 11E-03 O.00E+00 -100.0 I 0.11E-03 0. 045 0.042 -8 .4 0.048 I 0. 16E-04 O.00E+00 -100.0 � 0 . 16E-04 0. 048 0.043 -11 . 0 Maximum. positive excursion = 0.001 cfs ( 5.2�) occurring at 0 . 028 cfs on the Base Data:ttpre.tsf and at 0.030 cfs on the New Data:rdout.tsf Maximum negative excursion = 0.003 cfs (-26.30) occurring at 0.012 c�s on ..he Base Data:ttpre.tsf and at 0. 009 cfs on �he New Data:rdout.tsf Predeveloped Peak Flows Flow �'req�sency Analysis Time Series File:ttpre.tsf ?roject Location:Sea-Tac ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rarx Return Prob (CFS) (CFS) Period 0.048 2 2/09/O1 18:C0 0 . 062 1 100. 00 0 . 990 0.013 7 1/06/C2 3:00 0.048 2 25 . 00 0 . 960 0.036 4 2/28/03 3:00 0.037 3 10 . 00 0 . 900 O.00l 8 3/24/04 19:00 0.036 4 5. 00 0. 800 0.021 6 1/C5/05 8: 00 0.031 5 3. 00 0. 667 0 .037 3 1/18/06 21 : 00 0.021 6 2 . 00 0 .500 0.031 5 11/24/06 4 : 00 0 . 013 7 1.30 0.231 0.062 1 1/09/08 9: Oa 0 . 001 8 1 . 10 O.C91 Computed Peaks 0. 057 50 . 00 0 . 980 Develcped Detained Peak Flows � �'low Frequency Analysis Tirr.e Series File:rdout.tsf Project Location:Sea-Tac ---Annual Peak ^low Rates--- -----Flow Frequency Analysis------- ' Flow Rate Rank Ti�ne of Peak - - Peaks - - Rank Return Prob � (CFS) (CFS) (ft) Period 0.043 2 2/09/Ol 20 :00 0.043 5. 06 1 100. 00 0 . 990 BCRADESIGN.COM 35 ' � � [� � D 0 .015 6 1/07/02 3:C0 0 .043 5.01 2 25.00 0. 96C 0.035 3 3/C6/03 22:00 0. 035 4 .20 3 10. 00 0 . 900 O.008 8 8/26/04 8:00 0.032 3. 99 4 5. 00 0 .800 O.OG9 7 1/08/05 6:00 0.019 3. 19 5 3. 00 0 . 667 0.019 5 1/19/06 0:00 0.015 3. 07 6 2 . 00 0 .500 0.032 4 11/24/06 8:00 0.009 2 . 99 7 1. 30 0.231 0 .043 1 1/09/OS 14:00 0. 008 2 . 13 8 =. �0 0 .091 Computed Peaks 0 . �43 5.04 50.00 0. 980 Storm Predeveloped Developed Event Peak Flow Peak Flow (cfs) (cfs) 10 yr 0.037 0 . 035 2 yr 0. 021 0 . 015 Fiqure 4-1: Duration Analysis Plot u� 0 o T,�+.='':E—D!_�R —-----__� rdout dur ♦ ,_� w-_ �`t � `v�__::. 0 �.; i s;:-._ � : � : ♦ '`-♦ � e+� ,�. �j Q �;:� LL � �� V � m S � . : � �; t � � � .,., V1 N �F.. � O O `� � i� �?. � ♦ O O -----------�- -- - -� _ - --! ♦ � �._ O � O � O 10 -5 10 -4 10 -3 10 �2 10 -� 10° Probabilitv Exceedence BCRADESIGN.COM 36 � 00 n � D Water Quality System (Part E) The water quality requirements for this project are achieved through the usage of StormFilters. Three StormFilter catch basins and two StormFilter manholes are proposed on the project site, configured as two treatment trains they provide enhanced treatment. Details for these units can be found at the end of this section and a plan showing the location and orientation of these filters can be found on page 12.These StormFilter units filter runoff prior to detention in the underground detention system, sized in Part C above. As they filter prior to detention in a treatment train the ' primary and secondary treatment units are designed to treat 35% of the 2 year storm event runoff generated from the developed condition. The primary treatment was sized using a cartridge flowrate of 1 gpm/ftz while the secondary treatment was sized using 2 gpm/ft2. KCRTS was used to determine peak flows used for the StormFilter sizing. The calculations for StormFilter units A-E can be found below. It shall be noted that like Part D the values used for water quality sizing are a % representation of the most conservative scenario for the full build out and were determined using I KCRTS with 15 minute time steps. Table 4-2: Water Quality Areas Water Quality Impervious Area Pervious Area ' Area Name (sf) (ac) (sf) (ac) I WQ 11 9,854 0.226 1,635 0.038 � i WQ 12 1,176 0.146 148 0.015 , WQ 21 6,359 0.099 668 0.012 I �NQ Z2 4,322 0.027 522 0.003 WQ11 Flow Frequency Analysis Time Series File:wqll .tsf Project Location:Sea-Tac i ---Annaal Feak �low Rates--- -----Flow Frequency Analys_s------- I Flow Ra�e Rank Time of Peak - - Peaks - - Rank Return Prcb (C�S) (CFS} Period � 0.108 6 8/27/Ol 18 : 00 0.282 1 100. 00 0 . 99� U .075 t5 y%17%UL 1J : 45 U .G1U � 15. 00 0- 96'J ' �! 0.210 2 12/08/02 17: 15 0 . 147 3 10 . 00 0 . 900 0.087 7 8/23/04 14 :30 0 . 122 4 5. 00 0 . 800 I, 0 . 116 5 10/28/04 16:00 0. 116 � 3 . 00 0 . 667 0.122 4 10/27/05 10:45 0.108 6 2 . 00 0 . 500 ' 0.147 3 10/25/06 22 :45 0. 0�7 7 1 . 30 0.231 ' 0.282 1 1/09/08 6:30 0.075 � 1. 10 0 .091 � Computed Peaks C.258 50. 00 0 . 980 ' BCRADESIGN.COM 37 � OD n � D W Q12 Flow �requency Analysis Time Series File:wql2 .tsf Project Location:Sea-Tac ---Annual Peak Flow Rat.es--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) Pe�iod 0.013 6 8/27/O1 18:00 0.037 i 100.00 0 . 990 O.OG9 8 1/05/02 15:00 0.027 2 25.00 0.960 0.027 2 12/OS/02 17 : 15 0.018 3 10.00 0. 900 0.010 7 8/23/04 14 :30 0.015 4 5.00 0.800 0.015 5 11/17/04 5:00 0.015 5 3.00 0. 667 0.015 4 10/27/05 10:95 0.013 6 2 .00 0.500 0.018 3 10/25/06 22:45 0. 0�0 7 1.30 0 .231 0.037 1 1/09/08 6:30 0.009 8 1. 10 0 .09i Computed Peaks 0 .034 50.00 0 . 980 W 421 Flow F�eauency Analysis Tim.e Series File:wq2l.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- �low Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) Per�od 0.069 6 8/27/Gl 18:00 0 .179 1 100.00 0 .990 0.048 8 9/17/02 17 :45 0. 134 2 25.00 0. 960 0. 134 2 12/08/02 17: 15 0.094 3 10.00 0 .900 0 .056 7 8/23/04 19 :30 0.078 4 5.00 0 .800 0 . 074 5 10/28/04 16:OC 0. 0?4 5 3.00 0 . 667 0 . 078 4 10/27/05 10:45 0.069 6 2.00 0 .500 0 . 094 3 10/25/06 22 :45 0. 05c 7 1 .30 0 .231 0 . 179 1 1/09/OS 6:30 0 . 048 8 1 . 10 0 .091 Comp-ated ?eaks 0 . 164 50.00 0. 980 W Q22 =1ow Frequency A�alysis Time Series File:wq22 .tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- -----Flow Freq�:ency Analysis------- Flow Ra�e Rank Time of Peak - - Peaks - - Rank Return Prob (CFS) (CFS) Period BCRADESIGN.COM 38 � � m � 7Ct D 0.048 6 8/27/Ol 18 :00 0.124 1 100. 00 0 . 990 0.033 8 9/17/02 17 : 45 0.093 2 25. 00 0 . 950 0.093 2 12/08/02 17 : 15 C. 065 3 10. 00 0 . 900 0.038 7 8/23/04 14 : 30 0 . 054 4 5. 00 0 .800 0 . 051 5 1G/28/04 16: 00 0 . 05_ 5 3. �0 0 . 667 0 . 054 4 10/27/05 10 :45 0 . 048 6 2. 00 0 .500 0 .065 3 10/25/06 22 :�5 � . 038 ? 1 .30 0 .231 0.124 1 1/09/C8 6:30 0.033 8 1 . 10 0 .091 Computed Peaks 0.113 50 . 00 0 . 980 ' BCRADESIGN.COM 39 � oQ [l � D As was stated above the primary and secondary treatment units were designed using differing criteria. For both the primary and secondary treatment units 35% of the 2 year peak flow was I determined as the water quality flowrate while the primary and secondary treatment units were ' sized with a cartridge flowrate of 1 gpm/ftz and 2 gpm/ft2 respectively. The table below depicts the ' flow rate determination for each of the StormFilter units. Within the table grey shading is used to delineate which of the water quality area (WQ11, WQ12, WQ21, and WQ22) are tributary to each of the individual StormFilter units. For instance StormFilter unit C is providing primary treatment for Water Quality Area WQ21 while StormFilter unit A is providing secondary treatment for both Water Quality Area WQ21 and WQ 22. Refer to the Water Quality Basin Map on page 13 for a graphical depiction for each of the water quality areas. I StormFilter Two Year Primary Secondary Water Quality Area peak Flow Treatment Treatment Unit WQ11 WQl2 WQ21 WQ22 QZpeak 0.35*Qz�ak 0.35*QzPeak A 0.108 0.013 , 0.069 0.048 0.117 - 0.041 B 0.108 0.013 0.069 0.048 0.048 0.017 - C 0.108 0.013 I 0.069 0.048 0.069 0.024 - D 0.108 �.013 � 0.069 0.048 0.121 - 0.042 E 0.108 0.013 0.069 0.048 0.121 0.042 - StormFilter Unit A QwQ= 0.35*QZ = (0.35)*(0.117 cfs) = 0.041 cfs Number of Filters = Qwci/Qf�ite�_ (0.041 cfs)/ (10 gpm/449) = 2 Cartridges StormFilter Unit B Qwn= 0.35*Qz = (0.35)*(0.048 cfs) = 0.017 cfs Number of Filters = Qwn/Qf��ce�_ (0.017 cfs�/ (7.5 gpm/449) = 2 Cartridge StormFilter Unit C QwQ= 0.35*Qz = (0.35)*(0.069 cfs) = 0.024 cfs Number of Filters = QwQ/Qf�ite�_ (0.024 cfs)/(7.5 gpm/449) = 2 Cartridges StormFilter Unit D QwQ= 0.35*QZ = (0.35)*(0.121 cfs) = 0.042 cfs Number of Filters = Qwc.�/Qr�ice�_ (0.042 cfs)/ (10 gpm/449) = 2 Cartridges StormFilter Unit E BCRADESIGN.COM 40 � 00 n �o D QWQ= 0.35*QZ = (0.35)*(0.121 cfs) = 0.042 cfs Number of Filters = QwQ/Qf�ice�_ (0.042 cfs)/(7.5 gpm/449) = 3 Cartridges t BCRADESIGN.COM 41 oard�v..w� r-- ---, I � --------- — � : —\ I � i �_7 \ I �� r I (�av.�e r+o+.+ea�f 6� i �i O i I ��—�\ ; 'ro"-aa"'�. �p�pa ( � � � aame rs:ret pq. � �----------------- -- ' r;� '�i�n°'°°� r mn ,2s I II A � A � � �' � flow � inlet pipe canud (�'�+9h) strucrae type 2 CB reqiiad access risers ��'�� systam oNy PLAM V� q'Ts 'Flow-tnra�ph'system sha�rn soid. Designs tor'Row badcup'sYslem and DaraMe�tanlca Niown daehed 7 min.diamatw air veM pipe weWed to fardc �(reqiired H no accees riser on tardc) D 90"DIAM.ORiFICE f- �ar� � ELEV:389.14' � � ea�s ress � 50'mmc 7 mmc 6 IN�ET O.S sadiment sla�ge i.E.=387 84' 1 L E=388 78' r � . � I� Y mfn 38'min. size as ieqi'rad 7 rr� 7 min diameler(�YV) i;44"DIAM.ORIFICE ELEV:386.14' TANK BOT?Ch1 ��s� ELE'v 3�5.5=' (FROP-T stawn) min.54'dfe. sECT10N A-A Type 2 C8 MTS 'Flow-ihraugh'sys[em stiown sofd. NOTE: All metal parts cortosion resistaM. Steel paAs galvanized�d asphalt coated(Treatment 1 or better� � Y 31'D. PLAN — 235.Q0 � _� � PUBLIC woRxs TYPICAL DETENTION TANK �i7� DEPARTMENT � FN,� MARCH 2O08 BCRADESIGN.COM 42 �— $c�,a�a ey�z-so��. S CB concrete tap slab fra�bdcirg lid � (marked'DRAIN� mourMed over 24'dam. t+ —� eocentricopeniip 36'CMP riser / S � G � / PLAN NTS stantlarcl locking rr�i�tain 1'gep belween botlom of sl�&top of – -_ — riser-provide piable = gasket to exdude�rt � — �. compacted pipe bed6ng = riser,36"diam.min., — same material 3 ge�as tank welded or tused to tank M.H.steps 170.C. �� 24' . max weld or bdt standard M.H.steps detention tank SECTION NT8 NOTES: � 1. Use adjusting blocks as required to brirx,�irame to guide. 2. All materials to be aluminum or galvanized and asphak coated(Treatrnent 1 or better). 3. Must be located for access by m�ntenance vehiGes. 4. May substitute WSDOT special Type IV manhole(RCP only). �Y STD. PIAN — 2S5.1Q � �'�'�' PUBLIC WORKS DETENTION TANK ` / DEP�RTMEI�T ACCESS DETAIL `�N p'$ MARCH 2O0B BCRADESIGN.COM 43 STORMFILTER CATCHBASIN DESIGN NOTES STORMFILTER TREATMENT CAPACITY IS A FUNCTION OF THE CARTRIDGE SELECTION AND THE NUMBER OF CARTRIDGES. 2 CARTRIDGE CATCHBASIN HAS A MAXIMUM OF TWO CARTRIDGES. SYSTEM IS SHOWN WITH A 27"CARTRIDGE,AND IS ALSO AVAILABLE WITH AN 18"CARTRIDGE. STORMFILTER CATCHBASIN CONFIGURATIONS ARE AVAILABLE WITH A DRY INLET BAY FOR VECTOR CONTROL. PEAK HYDRAULIC CAPACITY PER TABLE BELOW. IF THE SITE CONDITIONS EXCEED PEAK HYDRAULIC CAPACITY.AN UPSTREAM BYPASS STRUCTURE IS VANED INLET GRATE REQUIRED. I (SOLID COVER CONCRETE COLLAR OPTIONAL) AND REBAR TO MEET HS20 IF APP�ICABLE BY CARTRIDGE SELECTION , , , , , , CONTRACTOR CARTRIDGE HEIGHT 27" 18" 18"DEEP � ° �_=_a=__�_=_=�_G =_ �__�____�_____� MINIMUMHYDRAULICDROP(H) 3.05' 2.3' 3.3' •�� , � a � ` ° r � �. SPECIFIC FLOW RATE(gpm/sf) 2 gpmfft� 1 gpmlft' 2 gpm/ft' 1 gpmlft' 2 gpm/ft' 1 gpm/ft' A • �� 1 A CARTRIDGE FLOW RATE(gpm) pz.5 11.25 15 7.5 15 7S �� ` }� _ � PEAK HYDRAULIC CAPACITY 1.0 1.0 1.8 JI ��° � INLET PERMANENT POOL LEVEL(A) ��_0" 1'-0" 2'-0" I �� x '�' ' �� q w OVERALL STRUCTURE HEIGHT B II x; II ' Q � ) 4,_9. 3�9�� 4�_9,� • p `x'x II � N II . 'T � °�� '' ? GENERAL NOTES II x,��,,,xxx ' �� 1. CONTECH TO PROVIDE ALL MATERIALS UNLESS NOTED OTHERWISE. �° II � x" �� 2. FOR SITE SPECIFIC DRAWINGS WITH DETAILED STORMFILTER CATCHBASIN STRUCTURE DIMENSIONS AND WEIGHTS.PLEASE CONTACT YOUR ��_ � � _ ` � � , � '11 a CONTECH ENGINEERED SOLUTIONS LLC REPRESENTATIVE. www.ContechES.com _ __•_______ ____�____ _________ 3. STORMFILTERCATCHBASINWATER�UALITYSTRUCTURESHALLBEINACCORDANCEWITHALLDESIGN�ATAANDINFORMATIONCONTAINEDIN ` ' ' < ° - ' THIS DRAWING. ACCESS COVER 4. INLET SHOULD NOT BE LOWER THAN OUTLET. INLET(IF APPLICABLE)AND OUTLET PIPING TO BE SPECIFIED BY ENGINEER AND PROVIDED BY CONTRACTOR. 2,-4„ 2,�, z,�„ 5. STORMFILTER CATCHBASIN EQUIPPED WITH 4 INCH(APPROXIMATE)LONG STUBS FOR INLET(IF APPLICABLE)AND OUTLET PIPING. STANDARD INSIDE RIM INSIDE RIM INSIDE RIM OUTLET STUB IS 8 INCHES IN DIAMETER. MAXIMUM OUTLET STUB IS 15 INCHES IN DIAMETER. CONNECTION TO COLLECTION PIPING CAN BE MADE USING FLEXIBLE COUPLING BY CONTRACTOR. 1'-0" 7'-1" 6. STEEL STRUCTURE TO BE MANUFACTURED OF 174 INCH STEEL PLATE. CASTINGS SHALL MEET AASHTO M306 LOAD RATING. TO MEET HS20 LOAD COLLAR OUTSIDE RIM RATING ON STRUCTURE,A CONCRETE COLLAR IS REQUIRED. WHEN REQUIRED,CONCRETE COLLAR WITH QUANTITY(2)#4 REINFORCING BARS TO BE PROVIDED BY CONTRACTOR. PLAN VI EW 7. FILTER CARTRIDGES SHALL BE MEDIA-FILLED,PASSIVE,SIPHON ACTUATED,RADIAL FLOW,AND SELF CLEANING. RADIAL MEDIA DEPTH SHALL BE 7-INCHES. FILTER MEDIA CONTACT TIME SHALL BE AT LEAST 37 SECONDS. 8. SPECIFIC FLOW RATE IS EQUAL TO THE FILTER TREATMENT CAPACITY(gpm)DIVIDED BY THE FILTER CONTACT SURFACE AREA(sq ft). INSTALLATION NOTES A. ANY SUB-BASE,BACKFILL DEPTH,AND/OR ANTI-FLOTATION PROVISIONS ARE SITE-SPECIFIC DESIGN CONSIDERATIONS AND SHALL BE SPECIFIED BY ENGINEER OF RECORD. B. CONTRACTOR TO PROVIDE EQUIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE CATCHBASIN(LIFTING CLUTCHES PROVIDED). C. CONTRACTOR TO TAKE APPROPRIATE MEASURES TO PROTECT CARTRIDGES FROM CONSTRUCTION-RELATED EROSION RUNOFF. 6,_9�� OPTIONALSLOPEDLID FLOATABLESBAFFLE 2-CARTRIDGE DEEP CATCHBASIN z�-o• z�-a�� 2'-0° sPEc F Eo`BY EN��NEER gE STORMFILTER DATA a PERMANENT � STRUCTUREID XXX B POOL LEVEL u' WATER QUALITY FLOW RATE cfs X.XX _ — - - — + FINISHED GRADE — j PEAK FLOW RATE <1.8 Cfs X.XX o • • _ -111-I_-1 I= " � RETURN PERIOD OF PEAK FLOW rs XXX � '� ---------- �` co —i�l—� II I__: 3 _ r = = -_ ` 1 CARTRIDGE FLOW RATE m XX � � MEDIA TYPE CSF,PERLITE,ZPG, GAC,PHS XXXXX LIFTING EYE � (TYP.OF 4) RIM ELEVATION XXX.XX' u PERMANENT FILTRATION x � POOL ELEVATION BAY INLET wEIRwALL plpE DATA: I.E. DIAMETER 9 5• 5�� INLET STUB XXX.XX' XX" � " �—` 00 OUTLET STUB XXX.XX' XX" o STORMFILTER f FLOW � CARTRIDGE TYP. - — CONFIGURATIONS OUTLET � Q FILTRATION O O = BAY INLET TYP. CARTRIDGE INLET STUB „ OUTLET STUB Q SUPPORT TYP. (OPTIONAL) N OUTLET INLET OUTLET FLOW � KIT TYP. OUTLET PIPE OO INLET INLET OO a FROM FLOWKIT o CLEANOUT 2'-0" � ACCESS PLUG B CATCHBASIN FOOT INSIDE INLET INLET < ON WEIR WALL (T1'P.OF 4) CTA1TP HOB 4SIN FOOT SLOPED LID YES1N0 ^� 2'-�yz" SOLID COVER YES1N0 � OUTSIDE NOTES/SPECIAL RE�UIREMENTS: � � SECTION A-A SECTION B-B � � � a � � Cil►�NTECHs 2 CARTRIDGE CATCHBASIN a Te51_,��:'� ENGINEERED SOLUTIONS LLC STORMFILTER � Storm Fi Iter' www.ContechES.com ° ,.. ,� ...... ...........»... -"Y 9025 Centre Pointe Dr,Swte 400, West Chester,OH 45069 STAN DARD DETAI L N � 800-33&1122 513-645-7000 513-6457993 FAX BCRADESIGN.COM 44 STORMFILTER CATCHBASIN DESIGN NOTES STORMFILTER TREATMENT CAPACITY IS A FUNCTION OF THE CARTRIDGE SELECTION AND THE NUMBER OF CARTRIDGES. 3 CARTRIDGE CATCHBASIN HAS A MAXIMUM OF THREE CARTRIDGES. SYSTEM IS SHaWN WITH A 27'CARTRIDGE,AND IS ALSO AVAILABLE WITH AN 18"CARTRIDGE. STORMFILTER CATCHBASIN CONFIGURATIONS ARE AVAILABLE WITH A DRY INLET BAY FOR VECTOR CONTROL. PEAK HYDRAULIC CAPACITY PER TABLE BELOW. IF THE SITE CONDITIONS EXCEED PEAK HYDRAULIC CAPACITY,AN UPSTREAM BYPASS STRUCTURE IS REQUIRED. CONCRETE COLLAR AND REBAR TO MEET VANED IN�ET GRATE CARTRIDGE SELECTION HS20 IF APPLICABLE BY (SOLID COVER OPTIONAL) ACCESS COVER CARTRIDGE HEIGHT Z�• 18" 18"DEEP CONTRACTOR MINIMUM HYDRAULiC DROP H t 1 3.05' 2.3' 3.3' , SPECIFIC FLOW RATE(gpm/s� 2 gpm/ft' 1 gpm/R' 2 gpmlft� 1 gpmlR' 2 gpm/ft' 1 gpm/ft' • . • , ' � . ° , ° ' CARTRIDGE FLOW RATE(gpm) 22.5 1125 15 7.5 15 7.5 s �_____________`== �s===�=`—=y�—�—=.:___— __� p � , , a — — , 11 . PEAK HYDRAULIC CAPACITY �.0 1.0 1.8 4� INLET PERMANENT POOL LEVEL(A) �'-0' 1'-0" 2'-0" ,II /� ii XY z a�,, ,I�< A OVERALL STRUCTURE HEIGHT(B) 4'-9" 3'-9' 4'-9' µ cX x%` �k:' II � .�� e•II �W GENERAL NOTES �, � x � ' "%�` < 91 .' c�� 1. CONTECH TO PROVIDE A�L MATERIALS UNLESS NOTED OTHERWISE. ° p, '°II Z 2. FOR SITE SPECIFIC DRAWINGS WITH DETAILED STORMFILTER CATCHBASIN STRUCTURE DIMENSIONS AND WEIGHTS,PLEASE CONTACT YOUR � �j�' �`�"% %xK II • • + CONTECH ANGINEERED SOLUTIONS LLC REPRESENTATIVE. www.ContechES.com % — 3. STORMFILTER CATCHBASIN WATER QUALITY STRUCTURE SHALL BE IN ACCORDANCE WITH ALL DESIGN DATA AND INFORMATION CONTAINED IN , ��` , . ' < , _ A THIS DRAWING. _— --�—`=a>_-- —T=—===_— --�_____________ u. 4. INLETSHOULDNOTBELOWERTHANOUTLET. INLET(IFAPPLICABLE)ANDOUTLETPIPINGTOBESPECIFIEDBYENGINEERANDPROVIDEDBY ' ` • , ' • CONTRACTOR. 5. STORMFILTER CATCHBASIN EQUIPPED WITH 4 INCH(APPROXIMATE)LONG STUBS FOR INLET(IF APPLICABLE)AND OUTLET PIPING. STANDARD OUTLET STUB IS 8 INCHES IN DIAMETER. MAXIMUM OUTLET STUB IS 15 INCHES IN DIAMETER. CONNECTION TO COLLECTION PIPING CAN BE MADE 2'-4" 2'�" 4'-0" USING FLEXIBLE COUPLING BY CONTRACTOR. INSIDE RIM INSIDE RIM INSIDE RIM 6. STEEL STRUCTURE TO BE MANUFACTURED OF 1/4 INCH STEEL PLATE. CASTINGS SHALL MEET AASHTO M306 LOAD RATING.TO MEET HS20 LOAD RATING ON STRUCTURE,A CONCRETE COLLAR IS REQUIRED. WHEN REQUIRED,CaNCRETE COLLAR WITH QUANTITY(2)#4 REINFORCING BARS TO ��'0�� 8�-9'� BE PROVIDED BY CONTRACTOR. COLLAR OUTSIDE RIM 7. FILTER CARTRIDGES SHALL BE MEDIA-FILLED.PASSIVE,SIPHON ACTUATED,RADIAL FLOW,AND SELF CLEANING. RADIAL MEDIA DEPTH SHALL BE 7-INCHES. FILTER MEDIA CONTACT TIME SHALL BE AT LEAST 37 SECONDS. PLAN VI EW 8. SPECIFIC FLOW RATE IS EQUAL TO THE FILTER TREATMENT CAPACITY(gpm)DIVIDED BY THE FILTER CONTACT SURFACE AREA(sq ft). INSTALLATION NOTES A. ANY SUB-BASE,BACKFILL DEPTH,ANO/OR ANTI-FLOTATION PROVISIONS ARE SITE-SPECIFIC DESIGN CONSIDERATIONS AND SHALL BE SPECIFIED BY ENGINEER OF RECORD. B. CONTRACTOR TO PROVIDE E�UIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE CATCHBASIN(LIFTING CLUTCHES PROVIDED). C. CONTRACTOR TO TAKE APPROPRIATE MEASURES TO PROTECT CARTRIDGES FROM CONSTRUCTION-RELATED EROSION RUNOFF. a._5,� OPTIONAL 3-CARTRIDGE CATCHBASIN 2'-0" 2'-8" 3'-8" SLOPED LID B � FLOATABLESBAFFLE STORMFILTER DATA ` PERMANENT ;� POOL LEVEL STRUCTURE ID XXX _ _ _ — — — — — — + FINISHED GRADE — ! WATER QUALITY FLOW RATE cfs X.XX o ,�� • _ =1I:II I-1II-1I1= � PEAK FLOW RATE <1 cfs X.XX � --------- ° •. `° i —111-11' � =i'1,-111= ¢ RETURN PERIOD OF PEAK FLOW rs XXX 3 o � LIFTING EYE CARTRIDGE FLOW RATE m XX o — (TYP.OF 4) MEDIA TYPE CSF,PERLITE,ZPG.GAC,PHS XXXXX U PERMANENT WEIR WALL 2 RIM ELEVATION XXX.XX' POOL LEVEL FILTRATION BAY 5• 3 FI�TRATION IN�ET 5• PIPE DATA: I.E. DIAMETE � BAY INLET n m FLOW INLET STUB XXX.XX' XX" o TYP. INLET STUB OUTLET STUB XXX.XX' XX" � "' STORMFILTER (OPTIONAL) CONFIGURATION : < CARTRIDGE NP. � CARTRIDGE OUTLET OUTLET � SUPPORTTYP. OO O O OO y OUTLET STUB z FLOW KIT TYP. OUTLET PIPE INLET INLET o � FROM FLOWKIT o B CLEANOUT ACCESS CATCHBASIN FOOT 2'-0" SLOPED LID YES1N0 � PLUG ON WEIR WALL (TYP.OF 4) INSIDE SOLID COVER YES1N0 a Z�-DY2" (TYP.OBq�INFOOT OUTSIDE NOTES/SPECIAL REQUIREMENTS: $ � J SECTION A-A SECTION B-B � � 0 � a � x C�I►�NTECH� 3 CARTRIDGE CATCHBASIN w ENGINEERED SOLUTIONS LLC STORMFILTER Q " S�armwa�e�MawJane�''�x � StormFilter" www.ContechES.com ° w..�-m.y�„_...,.. � `�.-. 9025 Centre Pointe Dr..Sutte 40Q West Chester,OH 45069 STAN DARD DETAI L � 800-338-1122 5�3-645-7000 513-645-7993 FAX BCRADESIGN.COM 45 STORMFILTER DESIGN NOTES STORMFILTER TREATMENTCAPACITY IS A FUNCTION OF THE CARTRIDGE SELECTION AND THE NUMBER OF CARTRIDGES. THE STANDARD MANHOLE STYLE IS SHOWN WITH THE MAXIMUM NUMBER OF CARTRIDGES(7). VOLUME SYSTEM IS ALSO AVAILABLE WITH MAXIMUM 7 CARTRIDGES. 072"MANHOLE STORMFILTER PEAK HYDRAULIC CAPACITY IS 1.5 CFS. IF THE SITE CONDITIONS EXCEED 1.5 CFS AN UPSTREAM BYPASS STRUCTURE IS REQUIRED. CARTRIDGE SELECTION , �. OUTLET CARTRIDGE HEIGHT 27' 18" LOW DROP /� SUMP RECOMMENDED HYDRAULIC DROP(H) 3.05' 2.3' 1.8' I \ SPECIFIC FLOW RATE(gpmis� 2 gpm/ft' 1 gpm/ft' 2 gpm/ft' 1 gpmfft' 2 gpm/ft' 1 gpmlft' ' ` CARTRIDGE FLOW RATE(gpm) 22,5 11.25 15 7.5 10 5 � A FCOw ` r�—_ O ` �,, � — — — � _ i INLET � -- � '� -- ' OUTLET �Lj� r� — — SY/__ 1� � 72"I.D.MANHOLE SITE SPECIFIC ti ' STRUCTURE DATA REQUIREMENTS TOP SLAB ACCESS � (86")O.D. STRUCTURE ID ' SEE FRAME AND WATER QUALITY FLOW RATE(cfs) ` COVER DETAIL PEAK FLOW RATE(cfs) ` ` RETURN PERIO�OF PEAK FLOW(yrs) ' J � �`>' #OF CARTRIDGES REQUIRED ` PLAN VIEW : ; cARTRIDGE FLOW RATE f STANDARD OUTLET RISER o C�NTECH o � MEDIA TYPE(CSF,PERLITE,ZPG,GAC,PHS) FLOWKIT:42A � ...-��e<rEs�w- � PIPE DATA: I.E. MATERIAL DIAMETER INLET PIPE t#1 ' ' ` ' INLET PIPE#2 ' ' ' t'>ti� �.,''� OUTLET PIPE ` ' ' RIM ELEVATION ' ANTI-FLOTATION BALLAST WIDTH HEIGHT CONTRACTOR TO GROUT TO F RAM E AN D COV E R NOTES/SPECIAL REQUIREMENTS: FINISHED GRADE (DIAMETER VARIES) GRADE N.T.S. •PER ENGINEER OF RECORD RING/RISERS ` /��//�/i. / i . ' a . e • � • , • . GENERALNOTES � 1. CONTECH TO PROVIDE ALL MATERIALS UNLESS NOTED OTHERWISE. FLOATABLES STORMFILTER BAFFLE 2. DIMENSIONS MARKED WITH()ARE REFERENCE DIMENSIONS. ACTUAL DIMENSIONS MAY VARY. � CARTRIDGE 3. FOR SITE SPECIFIC DRAWINGS WITH DETAI�ED VAULT DIMENSIONS AND WEIGHTS,PLEASE CONTACT YOUR CONTECH ENGINEERED SOLUTIONS LLC REPRESENTATIVE. www.ContechES.com 4. STORMFILTER WATER QUALITY STRUCTURE SHALL BE IN ACCORDANCE WITH ALL DESIGN DATA AND INFORMATION CONTAINED IN THIS r——— � DRAWING. �— INSIDE HEIGHT 5. STRUCTURE SHALL MEET AASHTO HS20 LOAD RATING,ASSUMING EARTH COVER OF 0'-5'AND GROUNDWATER ELEVATION AT,OR BELOW,THE --- : � 6' TYPICAL OUTLET PIPE INVERT ELEVATION. ENGINEER OF RECORD TO CONFIRM ACTUAL GROUNDWATER ELEVATION. CASTINGS SHALL MEET AASHTO M306 AND BE CAST WITH THE CONTECH LOGO. HYDRAULIC DROP 6. FILTER CARTRIDGES SHALL BE MEDIA-FILLED,PASSIVE,SIPHON ACTUATED,RADIAL FLOW,AND SELF CLEANING. RADIAL MEOIA DEPTH SHALL INLET PIPE (H)INLET INV. BE 7-INCHES. FILTER MEDIA CONTACT TIME SHALL BE AT LEAST 39 SECONDS. TO OUTLET INV. 7. SPECIFIC FLOW RATE IS EQUAL TO THE FILTER TREATMENT CAPACITY(gpm)DIVIDED BY THE FILTER CONTACT SURFACE AREA(sq k). __ I INSTALLATION NOTES � 1. ANY SUB-BASE,BACKFILL DEPTH,AND/OR ANTI-FLOTATION PROVISIONS ARE SITE-SPECIFIC DEStGN CONSIDERATIONS AND SHALL BE • . ^ ' a , SPECIFIED BY ENGINEER OF RECORD. 2. CONTRACTOR TO PROVIDE EQUIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE STORMFILTER STRUCTURE (LIFTING CLUTCHES PROVIDED). FLOW KIT 3. CONTRACTOR TO INSTALL JOINT SEALANT BETWEEN ALL STRUCTURE SECTIONS AND ASSEMBLE STRUCTURE. OUTLET SUMP 4. CONTRACTOR TO PROVIDE,INSTALL,AND GROUT INLET PIPE(S). 5. CONTRACTOR TO PROVIDE AND INSTALL CONNECTOR TO THE OUTLET RISER STUB. STORMFILTER EQUIPPED WITH A DUAL DIAMETER HDPE HDPE OUTLET RISER OUTLET STUB AND SAND COLLAR. IF OUTLET PIPE IS LARGER THAN 8 INCHES,CONTRACTOR TO REMOVE THE 8 INCH OUTLET STUB AT MOLDED IN CUT LINE. COUPLING BY FERNCO OR EQUAL AND PROVIDED BY CONTRACTOR. SECTION A'A 6 CONTRACTOR TO TAKE APPROPRIATE MEASURES TO PROTECT CARTRIDGES FROM CONSTRUCTION-RELATED EROSION RUNOFF. � C=:::NTECH� SFMH72 TMeS��,,,,w,«N,,,g�„-^„�^r ENGINEERED SOWTIONS LLC STORMFILTER StormFilterID www.ContechES.com w. -�w,. W »...F �w •y' 9025 Centre Pointe Dr.,Suite 400, West Chester,OH 45069 STANDARD DETAI L 800.338-1122 513-645-700� 513-6457993 FAX BCRADESIGN.COM 46 STORMFILTER A STORMFILTER B STORMFILTER C STORMFILTER MANHOLE 2-CARTRIDGE DEEP CATCHBASIN 2-CARTRIDGE DEEP CATCHBASIN DATA STORMFILTER DATA STORMFILTER DATA SITE SPECIFIC STRUCTURE ID B STRUCTURE ID C DATA REQUIREMENTS WATER QUALITY FLOW RATE cfs 0.017 WATER QUALITY FLOW RATE cfs 0.024 PEAK FLOW RATE <1.8 cfs 0.124 PEAK FLOW RATE <1.8 cfs 0.179 STRUCTURE ID A RETURN PERIOD OF PEAK FLOW rs 100 RETURN PERIOD OF PEAK FLOW rs 100 WATER QUALITY FLOW RATE(cfs) 0.041 CARTRIDGE FLOW RATE m 7.5 GPM CARTRIDGE FLOW RATE m 7.5 GPM PEAK FLOW RATE(cfs) D.303 MEDIA TYPE CSF,PERLITE,2PG, GAC,PHS ZPG MEDIA TYPE CSF,PERLITE,ZPG, GAC: PHS ZPG RETURN PERIOD OF PEAK FLOw(yrs) �00 RIM ELEVATION 393.64 RIM ELEVATION 393.83 #OF CARTRIDGES REQUIRED 2 PIPE DATA: I.E. DIAMETER PIPE DATA: I.E. DIAMETER CARTRIDGE FLOW RATE 10 GPM INLET 5TU6 TRENCH DRAIN N/A N/A INLET STUB TRENCH DRAIN 391.37 4" MEDIA TYPE(CSF.PERLITE,ZPG,GAC,PHS) CSF OUTLET STUB 390.95 8" OUTLET STUB 391.14 8" PIPE DATA: I.E. MATERIAL DIAMETER CONFIGURATIONS CONFIGURATIONS INLET PIPE#1 390.68 CPEP 8" INLET PIPE#2 391.06 CPEP 8" �1 � �,V C OUTLET PIPE 388.88 CPEP 8" J------ � -' - � RIM ELEVATION 394.35 S� OUTLET S3 `L S� OUTLET S ANTI-FLOTATION BALLAST WIDTH HEIGHT _- INLET OO , " OO N/A N/A Y S2 ` S4 ' S2 " S NOTES/SPECIAL REQUIREMENTS: � LOW DROP CARTRIDGE SLOPED LID SEE TABLE BELOW SLOPED LID SEE TABLE BELOW I SOLID COVER NO SOLID COVER NO I 'PER ENGINEER OF RECORD NOTESlSPECIAL REQUIREMENTS: NOTES/SPECIAL REQUIREMENTS: , STORMFILTER D STORMFILTER E CATCHFBASIN S� SS�T ELEVATIS3S s4 STORMFILTER MANHOLE 3-CARTRIDGE CATCHBASIN 8 393.70 393.70 393.77 393.78 DATA STORMFILTER DATA C 393.78 393.80 394.06 394.09 SITE SPECIFIC STRUCTURE ID E E 393.99 393.95 393.89 393.84 DATA REQUIREMENTS WATER QUALITY FLOW RATE cfs o.oa2 PEAK FLOW RATE <1 cfs 0.319 STRUCTURE ID D RETURN PERIOD OF PEAK FLOW rs 100 wATER QUALITY FLOw RATE(cfs) O.oa2 CARTRIDGE FLOW RATE m 7.5 GPM PEAK F�OW RATE(cfs) 0.319 MEDIA TYPE CSF.PERLITE,ZPG,GAC,PHS ZPG RETURN PERIOD OF PEAK FLOW(yrs) 100 RIM ELEVATION 393.92 it OF CARTRIDGES RE4UIRED Z PIPE DATA: I.E. DIAMETER CARTRIDGE FLOW RATE 10_GPM INLET STUB 392.80 6" MEDIATYPE CSF,PERLITE,ZPG,GAC,PHS) CSF OUTLET 5TU6 390.50 8" PIPE DATA: I.E. MATERIAL DIAMETER CONFIGURATION �J,� INLET PIPE#1 390.62 CPEP 8" INLET PIPE#2 NlA N/A N/A S� OUTLET S3 OUTLET PIPE 388.82 CPEP 8" � O OO -= ____�: RIM ELEVATION 395.50 S2 INLET S4 ANTI-FLOTATION BALLAST WIDTH HEIGHT N/A N!A SLOPED LID SEE TABLE BELOW NOTES/SPECIAL REQUIREMENTS: SOLID COVER NO LOw DROP CARTRIDGE NOTESlSPECIAL REQUIREMENTS: 'PER ENGINEER OF RECORD BCRADESIGN.COM 47 � OQ n � ' D � Section 5 — Conveyance System Analysis and Design Onsite The proposed site conveyance system is comprised of an underground detention system and a network of pipes to convey to and from the underground detention system. Catch basins collect the sheet flow from the site and convey the runoff into the underground detention system, see Section 4 of this report for the sizing of that system. After the stormwater exists the underground detention system it flows south across N.E. 4th Street and to an outfall in Maplewood Creek. The pipes located onsite were sized using a backwater analysis done in the King County Backwater Program (KCBW). The four pipes analyzed are the four pipes upstream of the detention system. For each of the pipes the Tailwater was set to be the water surface elevation, for the specified storm event, found in detention system sizing in Section 4. The initial analysis was done using the 100 year stvrm event, if the conveyance system had 6" of freeboard in the 100 year storm event then the analysis was considered a success and no further analysis was done, if the conveyance element did not pro�ide 6" of freeboard the 25 year storm event was analyzed to provide adequate sizing confirmation. For the four pipes analyzed a minimum of 6" of freeboard was achieved in all conveyance elements in the 100 year storm event, therefore the analysis was ended with the single event modeled.The pipe diameters and slopes were all set at 8" and 0.50%. For locations of the pipes detailed in this section refer to the Conveyance Exhibit on Page 14 of this report. The time series data was computed based on the Sea-Tac rain gauge with a factor of 1. Calculations for the sizing are shown below. Fiqure 5-1: Conveyance Sizinq Areas Tributary Area Conveyance WQ Element Area Impervious Area Till Grass (ac) (ac) CB#11 WQ22 0.100 0.012 CB#12 WQ21 0.146 0.015 CB#18 WQ11 0.226 0.030 CB#19 WQ12 0.027 0.011 *Note: Peak flow determination for these areas can be found in Section 4 Part E of this report BCRADESIGN.COM 48 � � [') 7Q D Fiqure 5-2: Pipe#311 KCBW Inputs REQIEo OF THE PIPE-DAT� I PI OUTLET IHLET IH OVERFLO BND STRU Q II � LENGTH DI TY ELEV ELEV TY I{E K �i C Y EZEV ANG QIDE R�T ', 1 78.00 8 8 390.14 390.53 5 .50 .0098 2.0 .0398 .67 ' PIPE # 1 : n-value = 0.013 i File Ogened for �driting:P111.bvp I Fiqure 5-3: Pipe#111 KCBW Backwater Outputs-100 Yr I�, BACKWATER COMPUTER PROGRAH FOR PIPES I� Pipe data from file:P111 .bvp Using a broad-crested weir at intermediate junctions Individual CB's suhject to surcharged condition shauld be simulated by raising the overflow elevation �I to an appropriate height above the rix elevation. � Tailwater Elevation:391 .2 feet � Dischar e Ran e: 0 . 21 to 0. 282 Step af 0 . 072 [cfs] � Overflow Elevation:393 . 67 feet ' 0eir:NONE Channel Width: 2 . feet ' PIPE N0. 1 : 7$ LF - 8"PIPE @ �.50% OUTI.ET: 390 . 14 INI.ET: 390 . 53 INTYP: 5 , Q(CFS} HW(FT) H�J EI.EV. � N-FAC DC DN TW DO DE HVO HWI li ��*�*��***��*��*��*��***��*�*��a j 0 . 21 0 . 71 391 . 24 � 0. 013 0. �2 0.23 1 . 06 1 . 06 0 . 70 0 . 71 0 .29 ��, 0 . 28 0 . 73 391 . 26 � 0.013 0. 25 0. 27 1 . 06 1 . 06 0. 71 0 . �3 0 .34 ' File Opened far Writing:P111 .bwt , BCRADESIGN.COM 49 � OD n � D Fiqure 5-4: Pipe#121 KCBW Inputs REVIEQ OF THE PIPE-D�T1 PI OIITLET INLEf IH OVERFLO BND STRII Q # LENGTH DI TY EI.EV ELEV Tq ICE K �i C Y ELEB ANG oIDE RAT 1 80.00 8 8 391 .54 391.94 5 .50 _0098 2_0 .0398 .67 PIPE # 1: n-value = 0.013 File Opened for Yriting:P121.bvp Ficrure 5-5: Pipe#121 KCBW Backwater Outputs-100 Yr BACKt��TER COHPUTER PRt?GRAH FOR PIPES Pipe data from file:P121 .bwp IIsing a broad-crested weir at interxediate junctions � Individual CB's subject to surcharged condition should be si�aulated bp raising the overflow elevation to an appropriate height above the ri� elevation. Tailwater Elevation:391 .2 feet Dischar e Ran e:0.027 to 0 .037 Step of 0.01 [cfs] Overf lo*,i Elevation: 396 .3 feet Weir:NONE Channel Width: 2 . feet PIPE H0. 1 : 8Q LF - 8"PIPE C� 0 . 50i OUTI.ET: 341 .54 INI.ET: 391 .94 INTYP: 5 Q(CFS) HW(FT) HW ELEV. � N-FAC DC DN TW DO DE HWO HWI ��*�*��*�� 0 . 03 0 . 11 392 . 05 * 0 . 013 0. 08 0.09 0.00 0.08 0. 09 0. 11 0 . 10 0 . 04 0 . 13 392 . 07 * 0 . 013 0.09 0.10 0.00 0.09 0. 10 0 . 13 0 . 11 File Opened for Writing:P121 .bwt i I I � i BCRADESIGN.COM 50 � 00 [� � D Fipure 5-6: Pipe#211 KCBW Inputs REVIEo OF THE PIPE-DAT� PI QIITLET INLET IN OVERFLO BND STRII Q f LENGTH DI TF ELEV ELEV TY KE K � C F ELEti AHG AIDE R�T 1 15 .32 8 8 391 .06 391 .14 5 .SO .0098 2.0 .0398 .67 PIPE � 1 : n-value = 0.013 File Opened for Writing:P211.bvp Fiqure 5-7: Pipe#211 KCBW Backwater Outputs - 100 Yr BACI{QATER COMPIITER PRQGRAH FOR PIPES Pipe data from file:P211 .bwp Using a broad-crested weir at intermediate junctians Individual CB's subject to surcharged condition should be simulated b raisin the overflow elevation to an a ro riate hei ht above he rin elevation. Tailwater Elevatian:391 . 2 feet Discharge Range:0 .134 to 0. 1�9 Step vf 0 . 045 [cfs] Overflov Elevation:393. 84 feet Weir:NONE Channel Width: 2. feet PIPE N0. 1 : 15 LF - 8"PIPE � 0.52i OUTLET: 391 . 06 INLET: 391 . 14 INTYP: S Q(CFS) HW(FT) W ELEV � N-F�C DC DN TW DO DE HWO HWI *��**��**��******��*��*��*��*��*�� 0 . 13 0 . 25 391. 39 � 0 . 013 0 . 17 0 . 18 0 . 14 0 . 17 0 . 18 � . 25 0 . 23 0 . 18 0 . 29 391 . 43 � 0 . 013 0 . 20 0 . 21 0 . 14 0 . 20 0 . 2� 0 . 29 0 . 26 File Opened for Writing:P211 .bwt BCRADESIGN.COM 51 I � � n � a Fiqure 5-8: Pipe#221 KCBW lnputs REVIEO QF T'HE PIPE-D�TI PI OIITLET INLET IH OPERFLO BND STRII Q � LENGTH DI TY ELEV ELEV TY KE K � C Y ELEV �NG oIDE RAT 1 54 .27 8 8 390.68 390.95 5 .SO .0098 2. 0 .0398 .67 PIPE # 1 : n-value = 0.013 File Opened for Qriting:P221 .bvp Fiqure S-9:Pipe#221 KCBW Backwater Outputs - 100 Yr BACK4IATER COMPUTER PROGRAli FOR PIPES Pipe data fron file:P221 .bwp Using a broad-crested weir at interraediate junctions Individual CB's subject to surcharged condition should be simulated by raising the overflow elevation to an appropriate height above the rim elevation. Tailwater Elevation:391 .2 feet Dischar e Ran e:0.093 to 0. 124 Step of 0. 031 [cfs] Overflow Elevation:393.65 feet �eir:HONE Channel Width:2. feet PIPE N0. 1 : 54 LF - 8"PIPE @ 0 . 50e OUTLET: 390 . 68 INLET: 390 . 95 INTYP: 5 Q(CFS) H�J(FT) H{� EI.EV. � N-FAC DC DN TW DO DE HWO HW I I ��*��** 0 . 09 0 . 28 391 . 23 � 0 . 013 0. 14 0 . 15 0. 52 0 .52 0 . 27 0 . 28 � . 19 0 . 12 0 . 29 391 . 24 � 0 . �13 0. 17 0 . 18 0. 52 0 . 52 0 . 27 0 . 29 0 . 22 File Opened for Writing:P211 .bwt _� �� i BCRADESIGN.COM 52 � � 00 n � D Offsite A quantitative downstream analysis was not completed for the conveyance system affected by the project site based on two factors. First, the proposed developed condition for the project site contains a greater amount of pervious area than it does in the existing condition, thus reducing its generated runoff. Second, the proposed developed condition does include flow control while the existing condition does not, thus reducing the flow rates leaving the project site. Based on these two factors it was concluded that the project site would not have a negative effect of the downstream conveyance system and therefore no analysis would be necessary. Part of the proposed design is the relocation of a storm line owned and maintained by the City of Renton. Runoff from the site does not enter the conveyance system however; in relocating the line the pipe was also upsized from a 24" CMP to a 36" DI pipe to prove the proposed pipe has adequate capacity. The backwater analysis used to size the pipe can be found below. Table 5-1: Offsite Pipe Relocation Areas Areas Area Area Zone % IMP �mpervious Area Pervious Area ' (sf} (ac) (ac) (ac) 230,104 5.28 CA 100% 5.28 0.00 > 0 31,818 0.73 R-14 85% 0.62 0.11 � 1,912,429 43.90 R-8 75% 32.93 10.98 Total 38.83 11.09 KCRTS was used to determine the peak flows generated from the area tributary to the section of pipe. Based on the percent impervious guidelines given in Renton Surface Water Design Manual 3.2.2.1 impervious and pervious areas were calculated (see Table 5-1 above). To simplify the model pervious area was modeled as Till Grass and impervious area was modeled as Impervious. KCBW was then used to determine the hydraulic grade line in the pipe. BCRADESIGN.COM 53 � � ('1 � D Flow Frequencp �nalysis Tine Seri�s File:ttoff .tsf Project Lacation:Sea-Tac -�nnual Peak Flov Rates- --Flow Frequencp �nalysis Flov Rate Rank Tize of Peak - - Peaks - - Rank Return Prab (CF'S) (CF5) Pesiod 10_40 6 2f09i01 2:00 20.68 1 100.00 0.990 8.80 $ 1i05i02 16:00 14.40 2 25.00 0.960 12.45 3 12�08i02 18:00 12.45 3 10.00 0_900 9.88 7 8i26�04 2:00 11.$0 4 5.00 0_800 11.80 4 10�28�04 16_00 11.08 5 3_00 0_667 11.08 5 1�18f06 16:00 10.40 6 2_00 0_500 14.40 2 10�26i06 0:00 9.88 7 1_30 0_231 20.68 1 1�D9fp8 6:00 8.80 8 1.10 0.091 Cosputed Peaks 18.59 50_00 0.980 Fiqure 5-10: Offsite Pipe Relocation Tailwater � H1NfT�Af Data j o : O __�3 ': Ele�ration � 0.0: 385.85 ' J � Stage[ftJ Discharge[cfs] 1.53 8.8 1.56 9.88 i 1.58 10.4 1.6 � 11.08 � 1.62 11.8 _� 1.63 12.45 1.68 14.d --�--� i 1.78 18.59 1.82 20.68 ��x �� , ' Data is sorted by Stage ____ _ _________- --__ _�--------�__. Edit PREVIdUS Screen � Edit NEXT Screen � Edit COMPLETE __� This elevation sets where the Stage is 0.0 Note: TW values computed using the equation TW = (D+d�)/2 as supplied in the 2009 SWDM Section 4.2.2.1 BCRADESIGN.COM 54 � � o� n � D B1CKO�TER COIiPDTER PR�OGR�i Ft7R PIPES Pipe data froa file:TfOFF.bvp IIsing a broad-crested veir at inter�iate junctions Indieidual CB's subject to surcharged condition should be sizulated bp raising the overfloo elevation to an appropriate h�ight above the riz elevatioa. Tailvater fx�oz HY�I'W File:HPfV.bot p of 2. (cfs] Overflov Eleeatioa:399.02 feet eir: Chanael Yidth:2. feet PIPE H0. 1: 18 LF - 36'C�iP � 0.50i OIITLET: 385.85 IHI.ET: 385.94 IHTYP: 5 JUHC N0. 1: OVERFZOD-EL: 396.79 BEND: 34 DEG DI�iQIDTH: 4.5 Q-RdTIO: 0.00 Q{CFS) HW t�) H� ELEY. � N-F�C I?C DN Tta DO DE H4i0 HWI ��f�� f��f��f�*�f 2.00 1.46 387.40 � 0.024 0.44 0.57 1.53 1.53 1.�5 1.46 D.58 4.00 1.48 387.42 � 0.024 0.63 0.81 1.53 1.53 1.45 1.48 0.84 6.00 1.52 387.46 � 0.024 0.77 0.99 1_53 1.53 1.46 1.52 1.03 5.00 1.58 387.52 � 0.024 0.90 1.16 1.53 1.53 1.47 1.58 1.20 10.00 1.68 387.62 � 0.024 1.01 1.31 1.56 1.56 1.52 1.68 1.35 12.D0 1.79 387.73 � 0.024 1_10 1.45 1.62 1.62 1.59 1.79 1.49 14.00 1.90 387.84 � 0.024 1_20 1.59 1.67 1.67 1.66 1.90 1.62 16.00 2.01 387.95 � 0.024 1.28 1.73 1.72 1.72 1.73 2.01 1.74 18_00 2.10 388.04 � 0.024 1.36 1.86 1.77 1.7? 1.78 2.10 1.86 20.00 2.20 388.14 � O.D24 1.4d 2.00 1.81 1.81 1.85 2.20 1.97 ��*�*-� IDID IH HI7iTQ FILE - D�TA E%TRAPOZATED ��*��+�-x-M 22.00 2.30 388.29 � 0.024 1.51 2.15 1.85 1.85 1.91 2.30 2.�8 PIPE N0. 2: 31 LF - 36"CMP @ 0.45i OIITLET: 385.94 INI.ET: 3$6.08 INTYP: 5 JUNC N0. 2: OVERFLO{J-EL: 398.07 BEND: 45 DEG DIAiWIDTH: 4.5 Q-RATIO: 0.00 Q(CFS) HW(FT) HW EZEV. � N-FAC DC DN Tv DO DE HWO HWI ..��,��.��f��f�ff��►t��-��f��+��.��,�.:�.�� 2.00 1.34 387.42 * 0.024 0.44 0.59 1_46 1.46 1.33 1.34 0.58 4.00 1.40 387.48 � 0.024 0.63 0.83 1.48 1.48 1.36 1.40 0.84 6.00 1.49 387.57 � 0.024 0.77 1.02 1.52 1.52 1.42 1.d9 1.04 8.00 1.60 387.68 � 0.024 0.90 1.19 1.58 1.58 1.49 1.60 1.21 10.00 1.74 387.82 � 0.024 1.01 1.35 1.68 1.68 1.60 1.74 1.36 12.00 1.88 387.96 � 0.024 1.10 1.49 1.79 1.79 1.72 1.88 1.50 14.00 2.03 388.11 � 0.024 1.20 1.64 1.90 1.90 1.85 2.03 1.63 16.00 2.16 388.24 � 0.024 1.28 1.78 2.01 2.01 1.96 2.16 1.76 18.00 2.29 388.37 * 0.024 1.36 1.93 2.10 2.10 2.07 2.29 1.87 20.00 � 0.024 1.44 2.08 2.20 2.20 2.19 2.42 1.99 22 00 2.53 388.61 * 0.024 1.51 2.24 2.30 2.30 2.24 2.53 2.10 PIPE N0 3: 98 LF - 36"CMP @ 0.46i dUTLET: 386.08 INLET: 386.53 INTYP: 5 Q(CFS) HW(FT} HW EI.EV. � N-FAC DC DN TW DO DE HWO HWI ��**t�**��f��****��*��-��*�r��*��*��**�*�*��*��r��****��+��-x� 2.00 0.94 387.47 � 0.024 0.49 0.58 1.34 1.34 0.93 0.94 0.57 4.00 1.07 387.60 � 0.024 0.63 0.83 1.40 1.40 1.04 1.07 0.79 6.00 1.23 389.76 * 0.024 0.77 1.02 1.49 1.49 1.19 1.23 0.96 8.D0 1.38 387.91 * 0.024 0.90 1.19 1.60 1.60 1 .34 1.38 1.10 10.00 1.54 388.07 � 0.024 1.01 1.34 1.74 1.74 1.50 1.54 1.23 12.00 1.70 388.23 � 0.024 1.10 1.49 1.88 1.88 1.66 1.70 1.35 14.00 1.85 388.38 * 0.024 1.20 1.63 2.03 2.03 1.82 1.85 1.47 16.00 2.01 388.54 � 0.024 1.28 1.77 2.16 2.16 1.98 2.01 1.59 18.00 2.16 388.64 * 0.024 1.36 1.92 2.29 2.29 2.13 2.16 1.70 20.00 � 0.024 1.44 2.07 2.42 2.42 2.28 2.31 1.81 22.00 2.46 385.99 � 0.024 1.51 2.23 2.53 2.53 2.43 2.46 1.92 BCRADESIGN.COM SS � � [� � D Percent full for each pipe in the 22.00 cfs condition: Pipe No. 1: y/D = (2.30 feet)/ (3 feet) = 0.77 Pipe No. 2: y/D = (2.53 feet)/(3 feet) = 0.84 Pipe No. 3: y/D = (2.46 feet)/ (3 feet) = 0.82 As shown by the above table even subjected to 22.00 cfs (larger than the 100 year peak flow of 20.68) both pipes do not overtop the catch basins and provide well over 6 inches of freeboard. Also, as shown by the above calculations done in the same 22.00 condition both pipes are flowing under gravity. It is concluded,therefore, that this design for the offsite pipe upsize and replacement is sufficient. BCRADESIGN.COM 56 � � 00 n � D Section 6 — Special Reports and Studies BCRADESIGN.COM C=::,NTECH' ENGINEERED SOLUTIONS January 6, 2015 Andrew Cirillo BCRA 2106 Pacific Avenue, Suite 300 Tacoma, Washington 98402 RE: StormFilter Review, Taco Time Renton Highlands Project Contech Engineered Solutions LLC has reviewed the plans showing the StormFilter stormwater treatment systems for the Taco Time Renton Highlands project in Renton, Washington. The plans were prepared by BCRA. This appears to be a good application for the StormFilter. The designer reports a water quality flow rates of: Primary Secondary Peak Treatment Treatment Flow Water Qualit area cfs cfs cfs Stormfilter Unit WQ11 WQ12 WQ21 WQ22 0.35'Q 2 r 0.35*Q 2 r Peak A 0.108 0.013 0.069 0.048 - 0.041 0.303 B 0.108 0.013 0.069 0.048 0.017 - 0.124 C 0.108 0.013 0.069 0.048 0.024 0.179 D 0.108 0.013 0.069 0.048 - 0.042 0.319 E 0.108 0.013 0.069 0.048 0.042 - 0.319 The designer has specified the following units for the water quality basins: Stormfilter Number of Media Unit Cartrid es Structure Size T e A 2 48" Manhole CSF B 2 2 cartrid e CB ZPG C 2 2 cartrid e CB ZPG D 2 48" Manhole CSF E 3 3 cartrid e CB ZPG The following stormfilter units meet the treatment requirement for each basin. Since the intemal bypass capacity of these structures is no less than 1.0 cfs, the StormFilters may be used online as shown on the plans; a separate high flow bypass structure is not required. The system appears to be constructible and the horizontal configuration of the inlet pipe and outlet pipe is acceptable for the StormFilters specified. The vertical separation between the inlet and outlet pipe provides the necessary drop required for the filter cartridges to operate. �02012 Contech Engineered Solutions LLC 11815 NE Glenn Widing Dr., Portland OR 97220 Page 1 of 2 www.ContechES.com Toll-free:800.548.4667 Fax:800.561.1271 TS-P052 � C=.:=NTECH� ENGINEERED SOLUTIONS The location of the StormFilter on the site appears to allow adequate maintenance access and the inside height of the unit will provide sufficient clearance for maintenance activities. In summary, the StormFilter is expected to operate in accordance with Contech Engineered Solutions' design intent. Please note that Contech Engineered Solutions has not reviewed the hydraulics of the collection system upstream or downstream of the filter. Please do not hesitate to call if you have any questions or require more information. Sincerely, lohn Megrditchian, E.I. ' Designer- �;orml^r�'._ Contech Engineered Solutions LLC 11815 NE Glenn Widing Drive I Portland, OR 97220 O�Fice: ',5�3i %�3-3i:7 ;�ax. i�0(?) �51-12?1 jme�rditchian@conteches.com - 02012 Contech Engineered Solutions LLC 11815 NE Glenn Widing,Portland OR 97220 Page 2 of 2 www.conteches.com Toll-free:800.548.4667 Fax:800.561.1271 TS-P052 G E O T E C H 13256 Idortheast 20th Sti•eet,Suite 16 CONSULTANTS, INC. sellevue,Washington 98005 {425)747-5618 FAX(425)747-8561 November 11, 2013 JN 13419 Taco Time Northwest 3300 Maple Valley Highway Renton, Washington 98Q58 Attention: Chris Tonkin via email: Chris@TacoTimeNW.com Subject: Transmittai Letter— Geotechnical Engineering Study Proposed Taco Time Restaurant and Second Retail Building 4114 Northeast 4`h Strest Renton, Washington Dear Mr. Tonkin: We are pleased to present this geotechnical engineering report for the proposed Taco Time Restaurant and a second retail building pad to be constructed in Renton. The scope of our services consisted of exploring site surface and subsurface conditions, and then developing this report to provide recommendations for generaf earthwork and design criteria for foundations, retaining walls, and pavements. This work was authorized by your acceptance of our proposal, P- 8694, dated July 29, 2013. The attached report contains a discussion of the study and our recommendations. Please contac# us if there are any questions regarding this report, or for further assistance during the design and construction phases of this project. Respectfully submitted, GEOTECH CONSULTANTS, INC. �J�, �� Thor Christensen, P.E. Senior Engineer cc: BCRA— Mat Bergman via email: MBergman@bcraclesign.com TRC/MRM: jyb GEOTECHNICAL ENGINEERING STUDY Proposed Taco Time Restaurant and Second Retail Building 4114 Northeast 4th Street Renton, Washington ` � This report presents the findings and recommendations of our geotechnical engineenng stud� for the site of the proposed restaurant and retail building to be located in Renton. We have been provided with an undated site plan that shows the planned location of a ne�v Taco Time restaurant and a retail building. Based on this plan, we understand that the new restaurant will be iocated in the eastern portian of the site and a retail building will be located in the western portion of the site. Most of the remainder o#the site will be covered with pavement. We anticipate that both structures will have a single story and that the floor elevations of the buildings will be close to the existing site grades. The existing Taco Time restaurant in the center of the property will be removed. If the scope of the project changes from what we have described above, we should be provided with revised plans in order to determine if modifications to the recommendations and conclusions of this report are �varranted. SITE CONDIT101VS SURFACE The Vicinity Map, P1ate 1, illustrates the general location of the subject property. The site is bordered to the south by Northeast 4`�' Street, to the west by a gas station, to the east by an auto parts store, and to the north by a shopping center parking lot. A single-story restaurant is located in the centraf portion of the site. Portions of the building walls are constructed of brick. We did not observe cracking of the brick, and are not aware of settlement-related distress to the building. Most of the remainder of the site is covered with asphalt pavement, with some landscaping areas along portions of the site perimeter. The ground surFace in the vicinity of the site is relatively flat. The ground surface on the west side of the site slopes gently down toward the south, and the ground surface on the east side of the site slopes gently down toward the southeast. There are no steep sfopes on, or near, the property. However, a low-lying drainage is located southeast of the site, on the south side of Northeast 4« Street. SUBSURFACE The subsurface conditions were explored by drilling eight test borings at the approximate locations shown on the Site Exploration Plan, Plate 2. Our exploration program was based on the proposed construction, anticipated subsurface conditions and those encountered during exploration, and the scope of work outlined in our proposal. The borings were drilled on November 6, 2013 using a trailer-mounted, hollow-stem auger drill. Samples were taken at 2.5- and 5-foot intervals with a standard penetration sampler. This split- rz�n-�ru rnnici n T�\ITC i�r Taco Time Northwest JN 13419 November 11, 2013 Page 2 spoon sampler, which has a 2-inch outside diameter, is driven into the soii with a 140-pound hammer falling 30 inches. The number of blows required to advance the sampler a given distance is an indication of the soil density or consistency. A geotechnical engineer from our staff observed the drilling process, logged the test borings, and obtained representative samples of the soil encountered. The Test Boring Logs are attached as Plates 3 through 10. Soil Conditions Below the surFicial asphalt, our test borings generally encountered fill material overlying native soil that consisted of silty sand with gravel to sand with gravel. The fill materiaf was composed of silty sand with gravel, and the majority of fhe filt was medium dense, although some zones of the fill were loose and others were dense. The underlying native soil was dense to very dense within a few feet of the original ground surface. Some of the test borings encountered as much as a foot of loose buried topsoil material between the fill material and the underlying native soil. Although our explorations did not encounter cobbles or boulders, they are often found in soils that have been deposited by glaciers or fast-moving water. Groundwater Conditions Perched groundtivater seepage was encountered at a depth of 0.5 feet in test boring B-1. No groundwater seepage was observed in the other test borings, which were left open for only a short time period. Therefore, the absence of seepage levels on the logs may not indicate the absence of static groundwater level. It should be noted that groundwater levels vary seasonally with rainfall and other factors. The stratification lines on the logs represent the approximate boundaries between soil types at the exploration locations. The actual transition between soif types may be gradual, and subsurface conditions can vary between exploration locations. The logs provide specific subsurface information only at the locations tested. If a transition in soil type occurred between samples in the borings, the depth of the transition was interpreted. The relative densities and moisture descriptions indicated on the test boring logs are interpretive descriptions based on the con�itions observed during drilling. CONCLUSIONS AND RECOMMENDATIONS GEIVERAL TH/S SECTION CONTAINS A SUMMARY OF OUR STUDY AND FlND/NGS FOR THE PURPOSES OF A GENERAL OVERV/EW ONLY. MORE SPECIFIC RECOMMENDATlONS AND CONCLUSIONS ARE CONTAlNED IIV THE REMAINDER OF THIS REPORT. ANY PARTY RELYING ON TH/S REPORT SHOULD READ THE ENTlRE DOCUMENT. The test borings conducted for this study encountered up to about 10 feet of silty sand fill overlying native medium dense to very dense sand with gravel. We have not been provided with documentation of the existing fill material, which was likely placed as part of the original site development. Because the existing fill encountered in our test borings was generally medium dense, we anticipate that i# will be feasible to support the structures on the existing fill material. However, supporting any structure on undocumented fill increases the risk of future structure �cnTcru�nnici i T�1�ITc in-r Taco Time Northwest JN 13419 November 11, 2013 Page 3 settlement. The existing building is supported on the fill soi! and appears to have performed acceptably. The risk of differential settlement of the foundations for the new buildings could be reduced by structurally stiffening the foundation system. A proof roll of the buiiding subgrades shauld also be performed to identify areas of loose materiaf, which would need to be over- excavated. The subgrade soils should be evaluated by an engineer from this firm before setting foundation forms. The erosion control measures needed during the site development will depend heavily on the weather conditions that are encountered. While site clearing will expose a large area of bare soil, the erosion potential on the site is relatively low due to the gentle slope of the ground. Existing pavements should be maintained wherever possible to reduce the area of bare soil. We anticipate that a silt fence may be needed around the downslope sides of any cleared areas. Rocked construction access roads should be extended into the site to reduce the amount of soil or mud carried off the property by trucks and equipment. Cut slopes and soil stockpiles should be covered with plastic during wet weather. Following rough grading, it may be necessary to mulch or hydroseed bare areas that will not be immediately covered with landscaping or an impervious surface. The drainage and/or waterproofing recommendations presented in this report are intended only to prevent active seepage from flowing through concrete walls or slabs. Even in the absence of active seepage into and beneath structures, water vapor can migrate through walls, slabs, and floors from the surrounding soil, and can even be transmitted from slabs and foundation walls due to the concrete curing process. Water vapor also results from occupant uses, such as cooking and bathing. Excessive water vapor trapped within structures can result in a variety of undesirable conditions, including, but not iimited to, moisture problems with flooring systems, excessively moist air within occupied areas, and the growth of molds, fungi, and other biological organisms that may be harmful to the health of the occupants. The designer or architect must consider the potential vapor sources and likely occupant uses, and provide sufficient ventilation, either passive or mechanical, to prevent a build up of excessive water vapor within the planned structure. Geotech Consultants, Inc. should be allowed to review the final development plans to verify that the recommendations presented in this report are adequately addressed in the design. Such a plan review would be additional work beyond the current scope of work for this study, and it may incfude revisions to our recommendations to accommodate site, development, and geotechnical constraints that become more evident during the review process. We recommend including this report, in its entirety, in the project contract documen�s. This report should also be provided to any future property owners so they will be aware of our findings and recommendations. SEISMIC CONSlDERATI0111S In accordance with the International Building Code (IBC), the site soil profile �vithin 100 feet of the ground surface is best represented by Site Class Type C (Very Dense Soil and Soft Rock). As noted in the USGS website, the mapped spectral acceleration value for a 0.2 second (SS) and 1.0 second period (S�) equals 1.40g and 0.48g, respectively. The site soils are not susceptible to seismic liquefaction because of their dense nature. r+rnTrnu nnnici�i-nn Tc n� Taco Time Northwesf JN 13419 November 11, 2013 Page 4 CONVE'NTIOIYAL FOUNDATIONS We recommend that the footings to support the new buildings all be continuous and have a minimum width of 16 inches. The foundations can bear on the existing fill material, or on structural fill where the ground surface will be elevated for the development. See the section entitled General Earthwork and Structural Fi!! for recommendations regarding the placement and compaction of structural fill beneath structures. In order to reduce differential settlement, the new foundations should be designed similar to grade beams, being able to theoretically span a distance of at least 10 feet without soil support. The foundations will typically consist of a footing containing three horizontal rebar with a reinforced stem wall sitting on the footing. Exterior footings shoufd also be bottomed at least 18 inches below the lowest adjacent finished ground surface for protection against frost and erosion. Footing subgrades must be cfeaned of loose or disturbed soil prior to pouring concrete. Depending upon site and equipment constraints, this may require removing the disturbed soil by hand. An allowable bearing pressure of 2,000 pounds per square foot (psf) is appropriate for footings supported on competent native soil. A one-third increase in this design bearing pressure may be used when considering short-term wind or seismic loads. For the above design criteria, it is anticipated that the total post-construction settlement of footings founded on competent native soi1, or on structural fill up to 5 feet in thickness, will be about one-inch, with differential settlements on the order of one-inch in a distance of 30 feet along a continuous footing with a uniform load. Lateral loads due to wind or seismic forces may be resisted by friction between the foundation and the bearing soil, or by passive earth pressure acting on the vertica�, embedded portions of the foundation. For the latter condition, the foundation must be either poured directly against relatively ' level, undisturbed soil or be surrounded by level, well-compacted fill. We recommend using the following ultimate values for the foundation's resistance to lateral loading: , . , � �.OEftiCl�ll; Gi rf ICt!OI- �.=10 Passive Earth Pressure 350 pcf Where: (i)pcf is pounds per cubic foot,and{ii)passive earth pressure is computed using the equivalent fluid density. If the ground in front of a foundation is loose or sloping, the passive earth pressurs given above will not be appropriate. We recommend maintaining a safety factor of at least 1.5 for the foundation's resistance to lateral loading, when using the above ultimate values. SLABS-ON-GRADE The building floors can be constructed as slabs-on-grade atop the existing fill material, or on structural fill. The subgrade soif must be in a firm, non-yielding condition at the time of slab construction or underslab fill placement. Any soft areas encountered should be excavated and replaced with select, imported structural fill. Even where the exposed soils appear dry, water vapor will tend to naturalfy migrate upward through the soil to the new constructed space above it. This can affect moisture-sensitive flooring, cause imperfections or damage to the slab, or simply allow excessive water vapor into the space above nrr�Tr�i_i nr�r.ci I!TP A'TC i�i� __� Taco Time No;thwest JN '3419 November 11, 2013 Page 5 the slab. All interior siabs-on-grade should be underiain by a capillary break or drainage layer consisting of a minimum 4-inch thickness of gravel or crushed rock that has a fines content (percent passing the No. 200 sieve) of less than 3 percent and a sand content (percent passing the No. 4 sieve) of no more than 10 percent. As noted by the American Concrete Institute (ACI} in the Guides for Concrete Floor and Siab Strucfures, proper moisture protection is desirable immediately below any on-grade slab that will be covered by tile, wood, carpet, impermeable floor coverings, or any moisture-sensitive equipment or products. ACI also notes that vapor retarders, such as 6-mi! plastic sheeting, have been used in the past, but are now recornmending a minimum 10-mil thickness. A vapor retarder is defined as a material with a permeance of less than 0.3 perms, as determined by ASTM E 96. It is possible that concrete admixtures may meet this specification, although the manufacturers of fhe admixtures should be consulted. Where vapor retarders are used under slabs, their edges should overlap by at least 6 inches and be sealed with adhesive tape. The sheeting should extend to the foundation walls for maximum vapor protection. If no potential for vapor passage through the slab is desired, a vapor barrier should be used. A vapor barrier, as defined by ACI, is a product with a water transmission rate of 0.01 perms when tested in accordance with ASTM E 96. Reinforced membranes having sealed overlaps can meet this requirement. DRAINAGF CONSIDERATIOIVS Foundation drains should be used where {1) crawl spaces or basements will be below a structure, (2) a slab is below the outside grade, or (3) the outside grade does not slope downward from a buiiding. Drains should afso be placed at the base of all earth-retaining walls. These drains should be surrounded by at least 6 inches of 1-inch-minus, washed rock and then wrapped in non-woven, geotextile filter fabric (Mirafi 140N, Supac 4NP, or similar material). At its highest point, a perforated pipe invert should be at least 6 inches below the bottom of a slab floor or the level of a crawl space, and it should be sloped for drainage. All roof and surface water drains must be kept separate from the foundation drain system. A typical drain detail is attached to this report as Plate 11. For the best long-term performance, perforated PVC pipe is recommended for all subsurface drains. Water should not be allowed to stand in any area where foundations, slabs, or pavements are to be constructed. Final site grading in areas adjacent to buildings should slope away at least 2 percent, except where the area is paved. Surface drains should be provided where necessary to prevent ponding of water behind foundation or retaining walls. PAVEMENT AREAS The pavement section may be supported on the existing fill. Because the site soils are silty and moisture sensitive, we recommend that the pavement subgrade must be in a stable, non-yielding condition at the time of paving. Granular structural fill or geotextile fabric may be needed to stabilize soft, wet, or unstable areas. To evaluate pavement subgrade strength, we recommend that a proof roll be completed with a loaded dump truck immedia#ely before paving. In most instances where unstable subgrade conditions are encountered, an additional 12 inches of granular structural fill will stabilize the subgrade, except for very soft areas where additional fill could be required. The subgrade should be evaluated by Geotech Consultants, Inc., after the site is stripped and cut to grade. Recommendations for the campaction of structural fill beneath pavements are n�n—cr�� r�n��.ci i�TA�ITC inir� Taco Time Northwest JN 13419 November 11, 2013 Page 6 given in the section entitled Genera! Earthwork and Sfructural Fill. The performance of site pavements is directly related to the strength and stability of the underlying subgrade. The pavement for lightly loaded traffic and parking areas should consist of 2 inches of asphalt concrete (AC) over 4 inches of crushed rock base (CRB} or 3 inches of asphalt-treated base (ATB). We recommend providing heavily loaded areas with 3 inches of AC over 6 inches of CRB or 4 inches of ATB. Heavily loaded areas are typically main driveways, dumpster sites, or areas with truck traffic. Increased maintenance and mare frequent repairs should be expected if thinner pavement sections are used. The pavement section recommendations and guidelines presented in this report are based on our experience in the area and on what has been successful in similar situations. As with any pavements, some maintenance and repair of iimited areas can be expected as #he pavement ages. Cracks in the pavement should be sealed as soon as possible after they become evident, in order to reduce the potential for degradation of the subgrade from infiltration of surface water. For the same reason, it is also prudent to seal the surface of the pavement after it has been in use for several years. To provide for a design without the need for any maintenance or repair would be uneconomical. GEIVERAL EARTHWORK AND STRUCTURAL FILL All building and pavement areas should be stripped of surface vegetation, topsoil, organic soil, and other deleterious material. !t is important that existing foundations be removed before site development. Existing utifities to be abandoned within structural areas must be removed, and the trenches backfilled with structural fill. The stripped or removed materials should not be mixed with any materials to be used as structural fill, but they could be used in non-structural areas, such as landscape beds. Structural fi�l is defined as any fill, including utility backfill, placed under, or close to, a building, behind permanent retaining or foundation walls, or in other areas where the underlying soif needs to support loads. All structural fill shouid be placed in horizontal lifts with a moisture content at, or near, the optimum moisture content. The optimum moisture content is that moisture content that results in the greatest compacted dry density. The moisture content of fill is very important and must be closely cantrolled during the filling and compaction process. The allowable thickness of the fifl lift will depend on the material type selected, the compaction equipment used, and the number of passes made to compact the lift. The loose lift thickness should not exceed 12 inches. We recommend testing the fill as it is placed. If the fill is not sufficiently compacted, it can be recompacted before another lift is pfaced. This eliminates the need to remove the fill to achieve the required compaction. The following table presents recommended relative compactions for structural fill: r'_=r1TC�'LJ rn�ici n r,ani-c inir- Taco Trme Norfh�vest JN 13419 November 11, 2013 Page 7 1 1 1 � � I I ' . � , � , , � Beneath footings, sla:�s 95% or waikwa s Filled slopes and behind 90% retainin walls 95% for upper 12 inches of Beneath pavements subgrade; 90% below that level Where: Minimum Relative Compactfon is the ratio, expressed in percentages, of the compacted dry density to the maximum dry density, as determined in accordance with ASTM Test Designation D 1557-9'1 {Modified Proctor}. Use of On-Sife Soil lf grading activities take place during wet weather, or when the siity, on-si#e soil is wet, site preparation costs may be higher because of delays due to rain and the potential need to import granuiar fill. The on-site soil is generaliy silty and therefore moisture sensitive. Grading operations wil! be difficult during wet weather, or when the moisture content of this soil exceeds the optimum moisture content. Moisture-sensitive soil may also be susceptible to excessive softening and "pumping" from construction equipment, or even foot traffic, when the moisture content is greater than the optimum moisture content. It may be beneficial to pro#ect subgrades with a layer of imported sand or crushed rock to iimit disturbance from traffic. Structural fill tha# will be placed in wet weather should consist of a coarse, granular soil with a silt or clay content of no more than 5 percent. The percentage of particles passing the No. 200 sieve should be measured from that portion of soil passing the three-quarter-inch sieve. LIMITATIONS The canclusions and recommendations contained in this report are based on site conditions as they existed at the time of our exploration and assume that the soil and groundwater conditions encountered in the test borings are representative of subsurface conditions on the site. If the subsurface conditions encountered during construction are significantly different from those observed in our explorations, we should be advised at once sa that we can review these conditions and reconsider our recommendations where necessary. Unanticipated conditions are commonly encountered on construction sites and cannot be fuEly anticipated by merely taking samples in test borings. Subsurface conditions can also vary between exploration locations. Such unexpected conditions frequently require making additional expenditures to attain a properly constructed project. It is recommended that the owner consider providing a contingency fund to accommodate such potential extra costs and risks. This is a standard recommendation for all projects. This report has been prepared for the exclusive use of Taco Time Northwest and its representatives for specific application to tfiis project and site. Our conclusions and recommendations are professional opinions derived in accordance with current standards of ��„-�-.� ,�„�� ,-�.�T� ,��,. Taco Time Norfhwest JN 13419 November 11, 2013 Page 8 practice within the scope of our services and within budget and time constraints. No warranty is expressed or implied. The scope of our services does not include services related to construction safety precautions, and our recommendations are not intended to direct the contractor's methods, techniques, sequences, or procedures, except as specifically described in our report for consideration in design. Our services also do not include assessing or minimizing the potential for biological hazards, such as mold, bacteria, mildew and fungi in either the existing or proposed site development. ADDlTIONAL SERVICES (n addition to reviewing the final plans, Geotech Consultants, Inc. should be retained to provide geotechnical consultation, testing, and observation services during construction. This is to confirm that subsurface conditions are consistent with those indicated by our expioration, to evaluate whether earthwork and foundation construction activities comply with the general intent of the recommendations presented in this report, and to provide suggestions for design changes in the event subsurFace conditions differ from those anticipated prior to the start of construction. However, our work would not include the supervision or direction of the actual work of the contractor and its employees or agents. Also, job and site safety, and dimensional measurements, will be the responsibiiity of the contractor. During the construction phase, we will provide geotechnical observation and testing services when requested by you or your representatives. Please be aware that we can only document site work we actually observe. It is still the responsibility of your contractor or on-site construction team to verify that our recommendations are being followed, whether we are present at the site or not. The scope of our work did not include an environmental assessment, but we can provide this service, if requested. The following plates are attached to complete this report: Plate 1 Vicinity Map Plate 2 Site Exploration Plan Plates 3 - 10 Test Boring Logs Plate 11 Typical Foating Drain Detail II r_GnT��u rnnici ii rnn Tc ini� Taco Time Northwest JN 13419 Novem ber 11, 2013 Page 9 We appreciate the opportunity to be of service on this project. If you have any questions, or if we may be of further service, please do not hesitate to contact us. Respectfully submitted, GEOTECH CONSULTANTS, INC. �� Thor Christensen, P.E. Senior Engineer � � f ,�,�' o w�f�P�,. .,+,�►�F� �� ': ��'��A � a�� r � � • ! ; ta��' � �+A�,��'CIS7'�;��'9 ti�4r . 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A . ` R 1 } 7"l ' �. .l• �•4 zi� �,� j��'1 � M'�r� 3'. . �jt.� ,e � E �'�.:�..� '�R, �'-$�.: �� : � •�7x�� : ' � �,�v � b��'"' � ' ��.� s.��,�+�'�r'�"'-� f '�r�" �'�.i�§ ��.�' y �S`� �'-�ii�� *-�;• r t�;, i _ �..s . � i'T+ .�,� �.r �'� ':,f� t :F, tn*t,f � .Y t ��si1f p ��.,,t^) k a 4� yt�.�a,i _ .�.: _ �':3E;�4..#'� �'� ��•.,-1 7k -�^ '� ' • ,. �� , � • � � ♦ i` �` • I / . � � � � � � � � -- I• 1 �• ' � . ' • • • 1 • . ' � � BORING 1 �r`�,.. ��'�et�e �� F°� Q�� 5 �� o� �,�a'� Q��° �et 5a� J5� Description 2.5 inches of asphalt 30 1 ' Gray-brown silty SAND with gravel, fine to coarse-grained, moist, dense (FILL) FlLL 5 g 2 � -becomes loose _--- - _ — — .,��I I f _ -- , � SM � 10 �I; 50/6" 3 Brown silty SAND with gravel, fne to coarse-grained, mo�st, very dense ' * Test boring was terminated on November 6, 2013 at 11.0 feet. * S(ight groundwater seepage was observed at 0.5 feet during drilling. 15 2Q ` TEST BORING LOG � � GEOTECH 4114 Northeast 4th Street CONSULTANTS,irrc. Renton, Washington � � y,� �_� •— Job Dafe: Logged by: Plate: 13419 Nov.2013 TRC 3 l � BORING 2 �,r`� .\y��a�� \o�� Q�e G5 p�Q �° �a � pe S� �5 Description - -- 2 inches of asphalt 9 � I Gray silty SAND with gravel and trace organics, fine to coarse-grained, moist, loose (FILL) 5 25 2 � FILL -becomes medium-dense 10 -becomes loose _ -- - -- - — - -- _ - 9 3 Dark brown silty SAND with gravef and organics, fine to coarse-grained, moist, loase (TOPSOIL) �o - _ ----- — — - - ooC�a o U� 52 4 y SW a Tan SAND with gravel,fine to coarse-grained, moist, very dense � b �, * Test boring was terminated on November 6, 2013 at 94.0 feet. 15 * No groundwater was encountered during drilling. 20 ' TE5T BORING LOG � GEOTECH 4114 Northeast 4th Street '� �' CONSUL'CAN"PS, INC. � Renton, Washington � �`� Job Date: Logged by: Plate: 13419 Nov. 2013 TRC 4 l � BORING 3 eQ�r`��t�a�a��g�°�ye��oa��\e 5�� Description 0 �` '� Q 5 J 2.5 inches of asphalt 33 1 � Gray-brown silty SAND with gravel, fine to coarse-grained, moist, dense (FILL) 5 10 2 ' FILL _becomes medium dense 'I 0 6 3 � Dark brown silty SAND with gravel and organics, fine to coarse-grained, moist: loose(TOPSOIL) � ' i',� � --_-- , SM ,, , E 15 ,� E; ;` Gray silty SAND with gravel, fine to coarse-grained, moist, very dense 50/1 6 � .,I.. * Test boring was terminated on November 6, 2013 at 15.5 feet. * No groundwater was encountered during driiling. 20 ' TEST SORING LOG � � GEOTECH 4114 Northeast 4th Street coNsuL�'ANTS,iNc. Renton, Washington � � Job Date: Logged by: Plafe: �� — 13419 Nov.2013 TRC 5 � '� BORING 4 �,r�� ,\y�.��a�e��e \os�5 tF�� Q�� G5 pe� �° ,�a Q, Qe 5a J5 Description 44 1 ' FILL Gray silty SAND with gravel, fine to coarse-grained, moist, dense (FtLL} 5 14 2 � Dark brown silty SAND with gravel and organics, fine to coarse-grained, moist, loose (TOPSOIL) �,-� - - . __ � ,. '�0 ! Snn 50/6" 4 ' �,. '.: Gray-brown silty SAND with gravel, fine to coarse-grained, moist, very dense ;; ;� , - - o �',�_ - --- - 00 - -- 61 5 , Sw ° Gray SAND with gravel, fine to coarse-grained, wet, very dense � ` aooa * Test boring was terminated on November 6, 2013 at 14.0 feet. 15 * No groundwater was encountered during drilling. 20 ' TEST BORING LOG � GE O TE C H 4114 Northeast 4th Street `� co�suLTA��rs,�vc. Ren#on, Washington -- Job Date: Logged by: Plate: 13419 Nov. 2013 TRC 6 `�� e ,��t 5 00� �e B O R I N G 5 � ��'�`r o��r, `�a'��e �� a�� 5G5 ' � � .�a �, � 5 J Description daoa °o .2 inches of asphalt �� 00�o°� o a�oa �oaao° da o°o 0 �o. �0$o D o �a o0 24 1 '°° �� Gray-brown SAND with gravel, fine to coarse-grained, moist, medium-dense =o`c°oad �� 'oaS �a�° 5 �SW ' — 30 2 becomes dense and brown �a �., �C �Ge� o d� o,o�,Q O 60 0 0 00 � o0 e� o� �� o��va�c Do�00$� � � a c 8��0000� 10 � `� �� o�� 50/6" 3 � ��='u��J -becomes very der.se and gray, increased silt content * Test boring was terminated on November 6, 2013 at 10.5 feet. * No groundwater was encountered during drilling. 15 20 I ' TEST BORING LOG � � GEOTECH 4114 Northeast 4th Street co�suL�r�,N�rs,INC. Renton, Washington �� _�-�_ Job Date: Logged by: Plate: 13419 Nov.2013 TRC 7 � � BORING 6 eQ�'r`�o`y��t�a��a�� ye��°o��\� �� p � �� Q� p 5� J5 Description 2 inches of asphalt ' FILL 49 1 Gray siity SAND with gravel, fine to coarse-grained, moist, dense (FILL) 5 -becomes medium-dense 29 2 � o� � a,, Dark brown silty SAND with gravel and organics,fine to coarse-grained, �°o,�° moist, loose(TOPSOIL) o� � oy �'��'` Brown SAND with gravel, fine to coarse-grained, moist, medium-dense o�c., 0 ° o o O c a a�yY o c � o jcao ae �a�oDo� 10 ��,��a�� 50/6" 3 � ��=�0000 -becomes very dense * Test boring was terminated on November 6, 2013 at 11.0 feet. * No groundwater was encountered during drilling. 15 20 ' TEST BORING LOG � � GEOTECH 4114 Northeast 4th Street CONStiLTANTI'S,itic. Renton, Washington _ — Job Date: Logged by: Plate: 13419 Nov.2013 TRC 8 � � BORING 7 ��r`�o`��e��e �°�5et��oa��\� 5G� � � ,�a g Q 5 J Description 1.5 inches of asphalt FILL Gray silty SAND with gravel, fine to coarse-grained, moist, medium-dense{FILL�_ 19 1 o o Dark brown silty SAND with gravel and organics, fine to coarse-grained, e��°�•,�o moist, loose TOPSOlL o ��e 5 °-�D Brown SAND with gravel, fine to coarse-grained, moist, medium-dense - oa o 38 2 � ,�°''�°� -becomes dense �o�,� �° �o� o, o oo��o �,�o�a� o . a� g�e�po a ood0000 p eo � a0a ��O 06 �Oo 0 ,��0$° 10 sw o 19 3 ;;o� g' -becomes medium-dense and gray �o �o a� o �.5c�aa 0 a�oO�o� �. �oa D°v o� oa �� .a 00" 000 ' � xl p>OJ �, �. o0a a O '�i 00 o°Oo O .��OS� ��. 15 � _y�� .oa°Qo °n�a� 49 4 ��o� ,�° -becomes dense a� oo � � * Test boring was terminated on November 6, 2013 at 16.5 feet. * No groundwater was encountered during drilling. 20 ' TEST BORING LOG �_ � GEOTECH 4114 Northeast 4th Street coNs�Ll,arrrs,iNc. Renton, Washington �, � Job Date: Logged by: P/ate: � � 13419 Nov.2013 TRC 9 `�� J�� ,�et 5 00� �e BORI N G 8 pe��r �°�� a�'\e��°�Qe�� Sa�p �5�� Description ,1.5 inches of aspha t 23 1 � Gray silty SAND with gravel, fine to coarse-grained, moist; medium-dense (FILL) FILL 5 10 2 ' � a-a�o - — - _ - - --- --- eUo p O on o�60 a.��0o° �a �ood� •R eo 0 °og'o o a o 47 3 � o°o: g° Gray-brown SAND with gravel, fine to coarse-grained, moist, very dense 0 0 � SW ; a� :�c�DGo �ddoo0c p o;,�000 aa�vep. O� U�°o ' � a'°, ,e��V 15 50/0" 4 * Test boring was terminated on November 6, 2013 at 15.0 feet. * No groundwater was encountered during drilling. 20 ' TEST BORING LOG , � GE O TE C H 4114 Northeast 4th Street �°NSULT�rrrs, �rr�. Renton, Washington � �--�— Job Date: Logged by: Plafe: 13419 Nov. 2013 TRC 10 Slope backfill away from foundation. Provide surFace drains where necessary. Tightline Roof Drain (Do not connect to footing drain) Backfill i� (See text for � -�' requirements) e ,o L= :� � zs Nonwoven Geotextile = � Filter Fabric � Washed Rock u"' Possible Slab (7/8" min. size) ^ G o 0 o c , �,.o'.-.�,.a.y`.�..�.�'.o � ,,.c.'�`,p,.� � °a�o�o°o° �. . t�� k� �s`� ,h ._ �00 ��OGC ��000 �J°•.� o�°�a0a oJ�:.p7G � ' _ . �- o o �f J o .L� G o a.Q� D o 00.aC 9 0 °o,p� D o .� 0 0 0� `�o� - z� h '' � c.op�o� ' op� °^•o.op� °^aoGp4a°"a°.opCc°Oe�.?; � U�� -- o . ,o.',�o .�o' .o .b'��a •o ;�o ti.�.o v o �- ? . °�°G°., - �r _ �f 2 Ky� 'a --�� -_--� � �� 4" min. ��°^; `�J �'; I II Iv � Vapor Retarder/Barrier and -1' Capillary Break/Drainage Layer (Refer to Report text) 4" PerForated Hard PVC Pipe ((nvert at least 6 inches below slab or crawl space. Slope to drain to appropriate outfall. Place holes downvvard.} NOTES: (1) In crawl spaces, provide an outlet drain to prevent buildup of water that bypasses the perimeter footing drains. (2) Refer to report text for additional drainage, waterproofing, and slab considerations. ' FOOTING DRAIN DETAIL �, � GEOTECH 4114 Northeast 4th Street CON5ULTANTS,iNc. Renton, Washington � � Job No: Date: Plate: �� 13419 Nov.2013 11 � � m n � D Section 7 — Other Permits BCRADESIGN.COM � � n � D Section 8 — CSWPPP Analysis and Design � � ; �� , � � i BCRADESIGN.COM Section 8 - CSWPPP Analysis and Design 1. ESC Plan Analysis and Design The Renton Highlands Taco Time project implements all applicable ESC measures as described in the City of Renton's Amendments to the King County Surface Water Design Manual. 1. Clearing Limits: Temporary metal or orange construction fencing will be used to �� clearly delineate the extents of construction. Areas within the dearing limits will be cleared of all trees and underbrush. Temporary fencing and silt fence wilt be the preferred BMP in order to restrict dearing to approved limits, limit construction to designated construction entrances, and to limit pedestrian access onto the construction site. 2. Cover Measures: The disturbed area is less than 1 acre, is generally flat and has no critical areas or slopes. Temporary cover shall be installed if an area is to remain unworked for more than 7 days during the dry season (May 1 to September 30) or for more than 2 consecutive working days during the wet season (October 1 to April 30). 3. Perimeter Protection: Perimeter protection from sheetflow offsite will be accomplished through use of silt fencin�. Silt fencing will be installed on the southern end of the site and will be used as primary treatment. Perimeter protection will be used as the sole form of treatment as it has an average slope of 10% or less and a flowpath of less than 250 feet. The site drains from the north end of the site to the south, has an average 5lope of 3% and a maximum flow path of approximately 225 feet. 4. Traffic Area Stabilization: A stabilized construction entrance will be installed as the first step in clearing and grading. Construction road and parking areas will be installed and stabilized immediatety after initial grading. Any sediment tracked into the public road will be cleaned immediately. 5. Sediment Retention: The site is small enough to atlow perimeter protection through use of silt fencing to act as sediment retention measures on site. Catch basin inlet protection will also be used for catch basins (existing and proposed) down slope of the construction area. 6. Surface Water control: Temporary surface water controls will not be used for the duration of the project. Any surface water that collects during the demolition or construction phases of the project will be treated through perimeter protection and be collected through downstream conveyance systems. 7. Wet Season Requirements: Any site with exposed soils during the wet season (October 1 to April 30) shall be subject to the special provisions below. In addition to the ESC cover measures (see Section D.3.2, p. D-10, King County Surface Water Design Manual, Jan. 2005), these provisions include covering any newly seeded areas with mulch and identifying and seeding as much disturbed area as possible prior to September 23 in order to provide grass cover for the wet season. — a. The allowed time that a disturbed area may remain unworked without cover measures is reduced to two consecutive working days, rather than seven (Section D.3.2). b. Stockpiles and steep cut and fill slopes are to be protected if unworked for more than 12 hours (Section D.3.2). c. Cover materials sufficient to cover all disturbed areas shall be stockpiled on site (Section D.3.2). d. All areas that are to be unworked during the wet season shall be seeded within one week of the beginning of the wet season (Section D.3.2.5). e. Mulch is required to protect all seeded areas (Section D.3.2.1). f. Fifty linear feet of silt fence (and the necessary stakes) per acre of disturbance must be stockpiled on site (Section D.3.3.1). g. Construction road and parking lot stabilization are required for all sites unless the site is underlain by coarse-grained soil (Section D.3.4.2). h. Sediment retention is required unless no offsite dischar�e is anticipated for the specified design flow (Section D.3.5). i. Surface water controls are required unless no offsite dischar�e is anticipated for the specified design flow (Section D.3.6). j. Phasin� and more conservative BMPs must be evaluated for construction activity near surface waters (Section D.5.3). k. Any runoff generated by dewatering may be required to dischar�e to the sanitary sewer (with appropriate discharge authorization), portable sand filter systems, or holding tanks. l. The frequency of maintenance review increases from monthly to weekly (Section D.5.4). 8. Critical Areas Restriction: The project site does not contain any critical areas or buffers. 2. SWPPS Plan Design Materials include standard construction materials includin�, but not limited to, CMU blocks, lumber, reinforcing steel, crushed base course, roofing materials, hardware, etc. These materials will be stored on top of a compacted gravel lay down area. Any material with the I potential for contamination will be covered with plastic sheeting preventing contact with rain water and will not be allowed to discharge from the site or into the site soils. Waste and Recycling containers will be present onsite and witl not allow rainwater to discharge from the containers. The ESC Site Supervisor will be responsible for proper groundwater and surface water protection from fuels, oils, and hydraulic fluids. Drip pans will be used as well as secondary containment, if necessary. Vehide maintenance spill prevention materials shall be on hand at the site prior to the start of any construction activities that require the use of construction machines or vehicles. Site specific activities that pose potential sources of pollution are shown in the Activity Worksheet shown in Appendix XX, along with the pertinent BMP Activity Sheets that will be used for spill prevention and cleanup. :Y�..; i , � , � , � , ; I � -� APPENDIX XX Activity Worksheet and BMPs ,i i Narne: Business T e: Address: Activity Use this worksheet to identify the activities that you conduct. Do you conduct this Sheet ��terpret the categoriea broadly.Numbers A-1 -A-d5 aCtivity? (f so, Number correspond to sheets located in Chapter 3. where? TYPE OF ACTIVITY '� ' "- ` ,- -' ' . ' Required BMPs for All Comrnercial Propert•es v /\ A-2 Storage of Liquid Materia#s in Statio�ary Tanks A-3 Storage of Any Liquid Materials in Portable Containers X A-a Sto►age of Soii,5and,and Other Erodible Materials X A-5 �torage of Pesticides and Fertilizers A-6 Storage and Treatme�t of Co�taminated Soils X A-7 Storage and Processing of Food Items A-e Storage of Solid Wastes and Food Wastes(Including Cooking Greaae) A-9 Storage of Scrap and Recycling Materiala{Including Auto Recycling Facilities) A-1 i7 Treatment, Storage. or Disposal of Dangerous Wastes ,i-t' Clcaning or Wash�ng of Tools and Equipment X A-12 Clea�ing or Washing of Cooking Equipment A-13 Vehicle Washing and Stoam Claaning X A-14 Interio�Washing Operadons(Including Mobile Contractors) A-15 Preasun Washing of Buildings.Rooftops,and Oth�r Larg• objects A-16 Truck or Rail Loading and Unloading of Liquid Materials A-17 Fueling Operations X A-18 Engine Repair and Maintenance X �.-`. A 19 Concrete and Asphalt Production at Stationary Sites X A-20 Concrete and Asphalt at Temporary 3itea X A-21 Manufacturing and Poat-Prxessing of Metal Producta �.,r,�,a,•; zr�r�y K�ng Cour,�y Stcrmwater RaNirtron PreventrQn Marrual Activfty Use this worksheet to identity the activities Mat you conduct. Do you conduct this Sheet Interprat the categories broadly. Numbers A-1 -A-45 activity? ff so, Number co�resportd to sheets lotated In Chapler 3. whe�e? TYPE OF ACTIVITY �NDOORS ouT�o�Rs A-22 Painting,Fin(ahing,and Goating of Vehicles, Products,and Equipment A-23 Wood Treatrnant and Preserving A-24 Commorcial Composting A-25 Ghemical Applications-Otfier than fo�Landscaping ,> ..,.. _, _ _ A-26 Landacaping Activitles X A-27 Clearing,Grading, and Preparation of Land for Small Const►uction Projects )( A-28 Demolition of Buildings X A-29 Building Repair,Remodaling,and Constructlon X A-?i; Boat Buildi�g, Mai�tenance. and Repair >> �.' Vehicle and Equipment Parking and Storage A-32 Sidewalk Maintenance A-33 Swimming Pool and 8pa Cleaning and Mafntenance A-34 Keeping Animals in ConVolled Areas A-35 Keeping Livestock in Stabks.Pens,Pastures or F(elds A-36 logging and Log Yards A-37 Mlning and tluarrying oi Sand, Gravel, and Other Materials A-38 Well,Dlrectio�al and Geotechnical Drilling A-39 Rooi Vents and Fugitive Emiaslons(Including Dust) A-.f0 Street Deicing Operations A-a1 Wheel Wash and Tire Bath Operations A-42 Potable Watsr Line Fluahing or Tank Maintenance A-d3 Use ot Soll Amendmenta on Construction Sites A-44 Dust Co�trol and Soil Erosion and Sediment Control for Manufacturing and Othst Commercial Operations A-45 Maintenance of PuWic and Private Utllity Corrfdors and Facilities N:, __.,i f', i_ � 't4'.fl;r� �'�. .,f,. . _:i :f'. � �.�f;lr.��rl; .C.�. �� __ . � GD n � D Section 9 — Bond Quantities, Facility Summaries, and Declaration of Covenant BCRADESIGN.COM Site Improvement Bond Quantity Worksheet Original bond computations prepared by: Name: Justin Goroch, PE Date: 04�29i2015 PE Regiatration Number: 43432 Tel.#: (253)627-43E�i Firm Name: BCRA Address: 2106 Pacific Avenue. Suite 300 T�icurna. WA 98402 Projaet No: 13245 ROAD IMPROVEMENTS&DRAINAGE FACILITIES FINANCIAL GUARANTEE REQUIREMENTS PERFORMANCE BOND'," PUBLIC ROAD&DRAINAGE AMOUNT MAINTENANCE/DEFECT 80ND',"` Stabilization/Erosion Sediment Control(ESC) (A) $ �i o.000 - Existing Right-of-Way Improvements (B) $ $p - Future Public Road Improvements&Drainage Facilities (C) $ $96,246 - Private Improvements (D) $ $653,764 - Construction Bond'Amount (A+B+C+D) = TOTAL (T) $ $760,010 - Minimum bond'amount is$1000. (B+C)x Maintenance/Defect Bond'Total 0.20= $ $19.249 - NAME OF PERSON PREPARING BOND"REDUCTION: Date: 'NOTE: The word"bond"as used in this document means any financial guarantee acceptable to the City of Renton. '*NOTE: All prices include labor,equipment,materials,overhead and pro(it. Prices are(rom RS Means data adjusted for the Seattle area or from local sources if not included in the RS Means database. REQUIRED BOND"AMOUNTS ARE SUBJECT TO REVIEW AND MODIFICATION BY RDSD Page 1 of 1 Unit prices updated: 2/12/02 Version:4/22/02 REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date: 1/19/2010 Site Improvement Bond Quantity Worksheet Existing Future Public Private Quantity Completed Right-of-Way Road Improvements Improvements (Bond Reduction)" 8 Drainage Facilities Quant. rnt nce ni uant. ost uant. os uan. ost Complete Cost GENERALITEMS No. Backfill&Compaction-embankment GI-1 $ 5.62 CY 0.00 0.00 0.00 0.00 Backfill 8 Compactiorn trench GI-2 $ 8.53 CY 0.00 ,�2b 5�,,'84 �.00 1,U�S1 �o'�.�'�:�� 0.00 0.00 Clear/Remove Brush,by hand GI-3 $ 0.36 SY 0.00 0.00 0.00 0.00 Clearing/Grubbing/Tree Removal GI-4 $8,876.16 Acre 0.00 0.007 63 0.00 0.760 $6,745 0.00 0.00 Excavation-bulk GI-5 $ 1.50 CY 0.00 0.00 0.00 0.00 Excavation-Trench GI-6 $ 4.06 CY 0.00 492 g� ggg 0.00 p 77g $1 1,271 0.00 0.00 Fencing,cedar,6'high GI-7 $ 18.55 LF 0.00 0.00 0.00 0.00 Fencing,chain link,vinyl coated, 6'high GI-8 $ 13.44 LF 0.00 0.00 0.00 0.00 Fencing,chain link,gate,vinyl coated, 2 GI-9 $1,271.81 Each 0.00 0.00 0.00 0.00 Fencing,split rail,3'high GI-1 $ 12.12 LF 0.00 0.00 0.00 0.00 Fill&compact-common barrow GI-11 $ 22.57 CY 0.00 0.00 402 9,081 0.00 0.00 Fill 8 compact-gravel base GI-1 $ 25.48 CY 0.00 0.00 0.00 0.00 Fill 8 compact-screened topsoil GI-1 $ 37.85 CY 0.00 0.00 0.00 0.00 Gabion, 12"deep,stone filled mesh GI-1 $ 54.31 SY 0.00 0.00 0.00 0.00 Gabion, 18"deep,stone filled mesh GI-1 $ 74.85 SY 0.00 0.00 0.00 0.00 Gabion,36"deep,stone filled mesh GI-1 $ 132.48 SY 0.00 0.00 0.00 0.00 Grading,fine,by hand GI-1 $ 2.02 SY 0.00 0.00 0.00 0.00 Grading,fine,with grader GI-1 $ 0.95 SY 0.00 34 $33 0.00 3,678 3,494 0.00 0.00 Monuments,3'long GI-1 $ 135.13 Each 0.00 0.00 0.00 0.00 Sensitive Areas Sign GI-2 $ 2.88 Each 0.00 0.00 0.00 0.00 Sodding, 1"deep,sloped ground GI-21 $ 7.46 SY 0.00 34 $25/ 0.00 1,11 1 8,291 0.00 0.00 Surveying,line 8 grade GI-2 $ 788.26 Day 0.00 0.00 0.00 0.00 Surveying,lot locationllines GI-2 $1,556.64 Acre 0.00 0.00 0.00 0.00 Tra�c control crew(2 flaggers) GI-2 $ 85.18 HR 0.00 0.00 0.00 0.00 Trail,4"chipped wood GI-2 $ 7.59 SY 0.00 0.00 0.00 0.00 Trail,4"crushed cinder GI-2 $ 8.33 SY 0.00 0.00 0.00 0.00 Trail,4"top course GI-2 $ 8.19 SY 0.00 0.00 0.00 0.00 Wall,retaining,concrete GI-2 $ 44.16 SF 0.00 0.00 0.00 0.00 a ,roc ery - . . . . Page 2 of 7 SUBTOTAL $C 0.00 $5.135 0.00 $48,105 0.00 0.00 Unit prices updated:2/12/02 Version:4/22/02 REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date: 1/19/2010 Site Improvement Bond Quantity Worksheet Existing Future Public Private Bond Reductlon* Right-of-way Road Improvements Improvements $Drainage Facilities Quant. nrt nce rnt uant. ost uan. os uan. ost Complete Cost ROADIMP OVEMENT No. AC Grinding,4'wide machine<1000sy RI-1 $ 23.00 SY 0.00 0.00 0.00 0.00 AC Grinding,4'wide machine 1000-2000 RI-2 $ 5.75 SY 0.00 0.00 0.00 0.00 AC Grinding,4'wide machine>2000sy RI-3 $ 1.38 SY 0.00 0.00 0.00 0.00 AC Removal/Disposal/Repair RI-4 $ 41.14 SY 0.00 0.00 2,662 $109,523 0.00 0.00 Barricade,type I RI-5 $ 30.03 LF 0.00 0.00 0.00 0.00 Barricade,type III(Permanent) RI-6 $ 45.05 LF 0.00 0.00 0.00 0.00 Curb 8 Gutter,rolled RI-7 $ 13.27 LF 0.00 0.00 0.00 0.00 Curb 8 Gutter,vertical RI-8 $ 9.69 LF 0.00 0.00 736 $7,140 0.00 0.00 Curb and Gutter,demolition and disposal RI-9 $ 13.58 LF 0.00 0.00 1,105 $15,012 0.00 0.00 Curb,extruded asphalt RI-1 $ 2.44 LF 0.00 0.00 0.00 0.00 Curb,extruded concrete RI-11 $ 2.56 LF 0.00 0.00 2�0 537 0.00 0.00 Sawcut,asphalt,3"depth RI-12 $ 1.85 LF 0.00 0.00 0.00 0.00 Sawcut,concrete,per 1"depth RI-1 $ 1.69 LF 0.00 0.00 0.00 0.00 Sealant,asphalt RI-14 $ 0.99 LF 0.00 0.00 0.00 0.00 Shoulder,AC, (see AC road unit price) RI-1 $ - SY 0.00 0.00 0.00 0.00 Shoulder,gravel,4"thick RI-1 $ 7.53 SY 0.00 0.00 0.00 0.00 Sidewalk,4"thick RI-1 $ 30.52 SY 0.00 0.00 173 $5,286 0.00 0.00 Sidewalk,4"thick,demolition and dispos RI-1 $ 27.73 SY 0.00 0.00 0.00 0.00 Sidewalk,5"thick RI-1 $ 34.94 SY 0.00 0.00 0.00 0.00 Sidewalk,5"thick,demolition and dispos RI-2 $ 34.65 SY 0.00 0.00 0.00 0.00 Sign,handicap RI-21 $ 85.28 Each 0.00 0.00 2 $171 0.00 0.00 Striping,per stall RI-2 $ 5.82 Each 0.00 0.00 26 $151 0.00 0.00 Striping,thermoplastic,(for crosswalk) RI-2 $ 2.38 SF 0.00 0.00 280 $666 0.00 0.00 triping, 're ectorized line - . . • � Page 3 of 7 SUBTOTAL $p 0.00 $� 0.00 $13F�,486 0.00 0.00 Unit prices updated: 2/12/02 Version:4/22/02 REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date: 1/19/2010 Site Improvement Bond Quantity Worksheet Existing Future Public Private Bond Raduction* Right-of-way Road Improvements Improvements 8 Drainage Facilities Quant. rnt ce rn uant. os uan. os uant. ost Complete Cost � M For KCRS'93,(additional 2.5"base)add:RS-1 $ 3.60 SY 0.00 0.00 0.00 0.00 AC Overlay, 1.5"AC RS-2 $ 7.39 SY 0.00 0.00 0.00 0.00 AC Overlay,2"AC RS-3 $ 8.75 SY 0.00 0.00 0.00 0.00 AC Road,2",4"rock,First 2500 SY RS-4 $ 17.24 SY 0.00 0.00 0.00 0.00 AC Road,2",4"rock,Qty.over 2500SY RS-5 $ 13.36 SY 0.00 0.00 0.00 0.00 AC Road,3",4"rock,First 2500 SY RS-6 $ 19.69 SY 0.00 0.00 1,796 $35,364 0.00 0.00 AC Road,3",4"rock,Qty.over 2500 SY RS-7 $ 15.81 SY 0.00 0.00 0.00 0.00 AC Road,5",First 2500 SY RS-S $ 14.57 SY 0.00 0.00 0.00 0.00 AC Road,5",�ty.Over 2500 SY RS-9 $ 13.94 SY 0.00 0.00 0.00 0.00 AC Road,6",First 2500 SY S-1 $ 16.76 SY 0.00 0.00 0.00 0.00 AC Road,6",Qty.Over 2500 SY S-1 $ 16.12 SY 0.00 0.00 0.00 0.00 Asphalt Treated Base,4"thick S-1 $ 9.21 SY 0.00 0.00 0.00 0.00 Gravel Road,4"rock,First 2500 SY S-1 $ 11.41 SY 0.00 0.00 0.00 0.00 Gravel Road,4"rock,Qty.over 2500 SY S-1 $ 7.53 SY 0.00 0.00 0.00 0.00 PCC Road,5",no base,over 2500 SY S-1 $ 21.51 SY 0.00 0.00 0.00 0.00 PCC Road, 6",no base,over 2500 SY S-1 $ 21.87 SY 0.00 0.00 0.00 0.00 ic ene dge - . . . . 0. 0 Page 4 0(7 SUBTOTAL �;,� 0.00 �;�� 0.00 .;;;�,�;�q 0.00 0.00 Unit prices updated:2/12/02 Version:4/22/02 REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date: 1/19/2010 Site Improvement Bond Quantity Worksheet Existing Future Public Private Bond Reduction• Right-of-way Road Improvements Improvements 8 Drainage Facllities Quant. nit nce ni uan. ost uant. ost uant. ost Complete Cost _ For Culvert prices, Average of 4'cover wes essumed.Assume parforated PVC is same price as solid pipe. Access Road,R/D D-1 $ 16.74 SY 0.00 0.00 0.00 0.00 Bollards-flxed D-2 $ 240.74 Each 0.00 0.00 0.00 0.00 Bollards-removable D-3 $ 452.34 Each 0.00 0.00 0.00 0.00 "(CBs include frame and lid) CB Type I D-4 $1,257.64 Each 0.00 0.00 3 $3,773 0.00 0.00 CB Type IL D-5 $1,433.59 Each 0.00 0.00 0.00 0.00 CB Type II,48"diameter D-6 $2,033.57 Each 0.00 0.00 1 $2,034 0.00 0.00 for additional depth over 4' D-7 $ 436.52 FT 0.00 0.00 g 3 649 0.00 0.00 CB Type II,54"diameter D-8 $2,192.54 Each 0.00 3 g 57g 0.00 1 1 24 1 18 0.00 0.00 for additional depth over 4' D-9 $ 486.53 FT 0.00 29 $14,270 0.00 79 $38,465 0.00 0.00 CB Type II,60"diameter D-10 $2,351.52 Each 0.00 0.00 0.00 0.00 for additional depth over 4' D-11 $ 536.54 FT 0.00 0.00 0.00 0.00 CB Type II,72"diameter D-12 $3,212.64 Each 0.00 0.00 0.00 0.00 for additional depth over 4' D-13 $ 692.21 FT 0.00 0.00 0.00 0.00 Through-curb Inlet Framework(Add) D-14 $ 366.09 Each 0.00 0.00 0.00 0.00 Cleanout,PVC,4" D-15 $ 130.55 Each 0.00 0.00 0.00 0.00 Cleanout,PVC,6" D-16 $ 174.90 Each 0.00 0.00 11 $1,924 0.00 0.00 Cleanout,PVC,8" D-17 $ 224.19 Each 0.00 0.00 0.00 0.00 Culvert,PVC,4" D-1 S $ 8.64 LF 0.00 0.00 0.00 0.00 Culvert,PVC,6" D-19 $ 12.60 LF 0.00 195 2 46z 0.00 �47 $1 gq7 0.00 0.00 Culvert,PVC, 8" D-20 $ 13.33 LF 0.00 17 $22g 0.00 0.00 0.00 Culvert,PVC, 12" D-21 $ 21.77 LF 0.00 0.00 0.00 0.00 Culvert,CMP,8" D-22 $ 17.25 LF 0.00 0.00 0.00 0.00 Culvert,CMP, 12" D-23 $ 26.45 LF 0.00 0.00 0.00 0.00 Culvert,CMP, 15" D-24 $ 32.73 LF 0.00 0.00 0.00 0.00 Culvert,CMP, 1 S" D-25 $ 37.74 LF 0.00 0.00 0.00 0.00 Culvert,CMP,24" D-26 $ 53.33 LF 0.00 0.00 12 $632 0.00 0.00 Culvert,CMP,30" D-27 $ 71.45 LF 0.00 0.00 0.00 0.00 Culvert,CMP,36" D-28 $ 112.11 LF 0.00 0.00 0.00 0.00 Culvert,CMP,48" D-29 $ 140.83 LF 0.00 0.00 147 $20,757 0.00 0.00 Culvert,CMP,60" D-30 $ 235.45 LF 0.00 0.00 0.00 0.00 ulvert, ,7 - . � � 500 $151,290 • � Page 5 of 7 SUBTOTAL �;� 0.00 ��3 S,;g 0.00 $'�4g 4gg 0.00 0.00 Unit prices updated: 2/12/02 Version:4/22/02 REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date: 1/19/2010 Site Improvement Bond Quantity Worksheet Existing Future Publie Privato Bond Reductfon• Right-of-way Road Improvements Improvements DRAINAGE CONTINUED 8 Drainage Facilities c]uant. o, ni nce ni uant. ost uant. os uant. ost Complete Cost Culvert,Concrete,8" D-32 21.02 LF 0 0 0 Culverl,Concrete, 12" D-33 $ 30.D5 LF 0 0 0 0 Culvert,Concrete, 15" D-34 $ 37.34 LF 0 0 0 0 Culvert,Concrete, 18" D-35 $ 44.51 LF 0 0 0 0 Culvert,Cancrete,24" D-36 $ 61.07 LF 0 0 0 0 Culvert,Concrete,30" D-37 $ 104.18 LF 0 0 0 0 Culvert,Concrete,36" D-38 $ 137.63 LF 0 0 0 0 Culvert,Concrete,42" D-39 $ 158.42 LF 0 0 0 0 Culvert,Concrete,48" D-40 $ 175.94 LF 0 0 0 0 Culvert,CPP,6" D-41 $ 10.70 LF 0 0 �7g $1,900 � 0 Culvert,CPP,8" D-42 $ 16.10 LF 0 0 271 4,370 0 0 Culvert,CPP,12" D-43 $ 2070 LF 0 0 66 $1,367 0 0 Culvert,CPP,15" D-44 $ 23.00 LF 0 0 0 0 Culvert,CPP,18" D-45 $ 27.60 LF 0 0 0 0 Culvert,CPP,24" D-46 $ 36.80 LF 0 0 0 0 Culvert,CPP,30" D-47 $ 48.30 LF 0 0 0 0 Culvert,CPP,36" D-48 $ 55.20 LF 0 0 0 0 Ditching D-49 $ 8.08 CY 0 0 0 0 Flow Dispersal Trench (1,436 base+) D-50 $ 25.99 LF French Drain (3'depth) D-51 $ 22.60 LF 0 0 0 0 Geotextile,laid in trench,polypropylene D-52 $ 2.40 SY 0 0 0 0 Infiltration pond testing D-53 $ 74.75 HR 0 0 0 0 Mid-tank Access Riser,48"dia, 6'deep D-54 $1,605.40 Each 0 0 8 12,843 0 0 Pond Overflow Spillway D-55 $ 14.01 SY 0 0 0 0 RestrictorlOil Separator, 12" D-56 $1,045.19 Each 0 0 0 0 RestrictorlOil Separator, 15" D-57 $1,095.56 Each 0 0 0 0 Restrictor/Oil Separator, 18" D-58 $1,146.16 Each 0 0 0 0 Riprap,placed D-59 $ 39.08 CY 0 0 0 0 Tank End Reducer(36"diameter) D-60 $1,000.50 Each 0 0 10 $�0,005 0 0 Trash Rack, 12" D-61 $ 211.97 Each 0 0 0 0 Trash Rack, 15" D-62 $ 237.27 Each 0 0 0 0 Trash Rack, 18" D-63 $ 268.89 Each 0 0 0 0 ras ac , ac Page 6 of 7 SUBTOTAL �0 0 $0 0 $30,485 0 0 Unit prices updated:2/12/02 Version:4/22/02 REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date: 1119/2010 Site Improvement Bond Quantity Worksheet Existing uturo Public Prlvate Bond Reduction` Right-of-way Road Improvaments Improvements &Drainage Facilities Quant. nit nce ni uant. nce uant. ost uant. ost Complete Cost PA KING OT S F 1 G No. 2"AC,2"top course rock&4"borrow PL-1 $ 15.84 SY 0 0 0 0 2"AC, 1.5" top course&2.5"base cour PL-2 $ 17.24 5Y 0 0 0 0 4"select borrow PL-3 $ 4.55 SY 0 0 0 0 1.5"top course rock&2.5"base course PL-4 $ 11.41 SY 0 0 0 0 T N-ITEMS (Such as detention/water quality vaults.) No. 6"DucUle Iron F'i e w�-1 ad6.71 0 0.00 �) ��t�'ts 0.00 0.00 36"Ductile iron Pi e W�-2 $310.00 �F 0 146 $45,362 0.00 0.00 0.00 WI-3 CY 0 0.00 0.00 0.00 WI-4 LF 0 0.00 0.00 0.00 WI-5 FT 0 0.00 0.00 0.00 W I-6 0 0.00 0.00 0.00 WI-7 0 0.00 0.00 0.00 WI-8 0 0.00 0.00 0.00 WI-9 0 0.00 0.00 0.00 WI-to . . SUBTOTAL $0 0.00 $45,362 0.00 $42g 0.00 0.00 SUBTOTAL(SUM ALL PAGES): $0 0.00 $7q,p3g 0.00 $501,357 0.00 0.00 30%CONTINGENCY 8 MOBILIZATION: $0 0.00 $22,21 1 0.00 $152,407 0.00 0.00 GRANDTOTAL: $0 0.00 $96.746 0.00 $653./64 0.00 0.00 COLUMN: B C D E Page 7 of 7 Unit prices updated: 2/12/02 Version:4/22/02 REF 8-H BOND QUANTITY WORKSHEET.xIs Report Date: 1119/2010 I Return Address: City Clerk's Office City of Renton 1055 S Grady Way Renton,WA 98057 DECLARATION OF COVENANT FOR Il�SPECTION AND MAINTENANCE OF STORMWATER FACILITIES AND BMPS Grantor: Grantee: City of Renton Legal Description: Assessor's Tax Parcel ID?�: IN CONSIDERATION of the approved City of Renton permit for application file Na LUA/SWP relating to the real property("Property") described above,the Grantor(s),the owner(s) in fee of that Property, hereby covenants(covenant)with the City of Renton,a political subdivision of the state of Washington, that he.'she(they) will observe, consent to, and abide by the conditions and obligations set forth and described in Paragraphs 1 through 10 below with regard to the Property, and hereby grants(grant) an easement as described in Paragraphs 2 and 3. Grantor(s) hereby grants(grant), covenants(covenant),and agrees(agree)as follows: 1. The Grantor(s) or his;'her(their)successors in interest and assigns ("Owners of the described property") shall at their own cost, operate, maintain,and keep in good repair,the Property's stormwater facilities and-'or best management practices ('BMPs") constructed as required in the approved construction plans and specifications on file with the City of Renton and submitted to the City of Renton for the review and approval of permit(s) . The property's stormwater facilities and��or best management practices("BMPs") are shown andlor listed on Exhibit A. The property's stormwater facilities and/or BMPs shall be maintained in compliance with the operation and maintenance schedule included and attached herein as Exhibit B. Stormwater facilities include pipes, swales, tanks,vaults,ponds, and other engineered structures designed to manage and-'or treat stormwater on the Property. Stormwater BMPs include dispersion and infiltration devices, native vegetated areas,permeable pavements, vegetated roofs, rainwater harvesting systems, reduced impervious surface coverage, and other measures designed to reduce the amount of stottnwater runoff on the Property. 2. City of Renton shall have the right to ingress and egress over those por[ions of the Property neccssary to perform inspections of the stormwater facilities and BMPs and conduct maintenance activities specified in this Declaration of Covenant and in accordance with RMC 4-6-030. 3. If City of Renton determines that maintenance or repair work is required to be done to any of the stormwater facilities or BMPs, City of Renton shall give notice of the specific maintenance and/or repair wark required pursuant to RMC 4-6-030. The City shall also set a reasonable time in��hich such Page 1 of 3 Form Approved by City Attorney 10:2013 work is to be completed by the Owners. [f the above required maintenance or repair is not completed within the time set by the City, the City may perform the required maintenance or repair, and hereby is given access to the Property, subject to the exclusion in Paragraph 2 above, for such purposes. Written notice will be sent to the Owners stating the City's intention to perform such work. This work will not commence until at least seven (7) days after such notice is mailed. If,within the sole discretion of the City, there exists an imminent or present danger,the seven (7) day notice period will be waived and maintenance and/or repair work will begin immediately. 4. If at any time the City of Renton reasonably determines that a stormwater facility or BMP on the Property creates any of the hazardous conditions listed in RMC 4-4-060 G or relevant municipal successor's codes as applicable and herein incorporated by reference, the City may take measures specified therein. 5. The Owners shall assume all responsibility for the cost of any maintenance or repair work completed by the City as described in Paragraph 3 or any measures taken by the City to address hazardous conditions as descnbed in Paragraph 4. Such responsibility shall include reimbursement to the City within thirty(30) days of the receipt of the invoice for any such work performed. Overdue payments will require payment of interest at the current legal rate as liquidated damages. If legal action ensues, the prevailing party is entitled to recover reasonable litigation costs and attorney's fees. 6. The Owners are hereby required to obtain written approval from City of Renton prior to filling, piping, cutting, or removing vegetation(except in routine landscape maintenance) in open vegetated stormwater facilities(such as swales, channels, ditches,ponds, etc.), or performing any alterations or modifications to the stormwater facilities and BMPs referenced in this Declaration of Covenant. 7. Any notice or consent required to be given or otherwise provided for by the provisions of this Agreement shall be effective upon personal delivery, or three(3) days after mailing by Certified Mail, return receipt requested. 8. With regard to the matters addressed herein, this agreement constitutes the entire agreement between the parties, and supersedes all prior discussions, negotiations, and all agreements whatsoever whether oral or written. 9. This Declaration of Covenant is intended to protect the value and desirability of the real property described above, and shall inure to the benefit of all the citizens of the City of Renton and its successors and assigns. This Declaration of Covenant shall run with the land and be binding upon Grantor(s), and Grantor's(s') successors in interest, and assigns. 10. This Declaration of Covenant may be terminated by execution of a written agreement by the Owners and the City that is recorded by King County in its real property records. IN WITNESS WHEREOF, this Declaration of Covenant for the Inspection and Maintenance of Stormwater Facilities and BMPs is executed this day of , 20 GRANTOR, o�;-ner of the Property GRAtiTOR, o«mer of the Property Page 2 of 3 Form Approved by City.Attomey 10:2013 STATE OF WASHINGTON j COUNTY OF KING )ss. On this day personally appeared before me: , to me known to be the individual(s) described in and who executed the within and foregoing instrument and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes thercin statcd. Given under my hand and official seal this day of , 20 Printed name Notary Public in and for the State of Washington, residing at My appointment expires Page 3 of 3 Form Approved by City Attomey 10+'2013 � � n � D Section 10 — Operations and Maintenance Manual BCRADESIGN.COM � °��-� �� A � ,�, , , . : V w � ; �.�� `�d� �� ,�,�� ^�, ��• � >��,. � ,�� p� h" <� p j� �F� � �� x � �5,. 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Introduction/System Overview The onsite stormwater management facilities include an underground detention system, five StormFilter units, catch basins, and stormwater conveyance system. The under�round detention system is located in the center of the site. The two StormFilter units are located on the north and south sides of the detention system, within the parking area. The sites catch basins and stormwater conveyance system are located in various places around the site. All facilities were desi�ned for no onsite infiltration and therefore discharge completely off the site. A site plan with the locations of the stormwater facilities is provided and can be found on the next page. I � Refer to Appendix A for detailed drawings of the Detention system, StormFilter units, and other storm draina�e structures. The on-site storm system requires regular maintenance. The conveyance system must be inspected after large storm events. Leaves and debris shall be swept clean of the catch basin grates. Sumps of the catch basins must also be cleaned periodically. Bellevue TT, LLC. will be the entity responsible for the maintenance of the onsite storm system. The address and contact information for Bellevue TT, LLC. is: Bellevue TT, LLC. 3300 Maple Valley Highway Renton, WA 98058 The maintenance standards are used as inspection forms for the system and its associated components. Record the date each time an inspection is completed and note any problems and actions taken, records of inspection and '� maintenance must be kept for five (5) years. A sample maintenance log is provided at the end of this document. Keep completed forms with the Operations and Maintenance Manual at the manager's office at all times. Bellevue TT, LLC. shall keep the Operations and Maintenance Manual available for maintenance personnel. City staff may request to review the maintenance forms as a part of their inspection process. Some components or facilities do not need to be looked at every time an inspection is conducted. Use the suggested frequency at the left of each item as a guideline for activities to be completed with each inspection. A brief description of each stormwater facility and its function is provided below: • The detention system is shown in Appendix A. The system is designed to collect stormwater and attenuate the flowrate bein� discharged from the site, mirrorin� a predeveloped condition. • The StormFilter units are shown in Appendix A. The unit is designed to collect stormwater from the pollution generating impervious surfaces and treat by filtering the water through its specialized filter media. • A catch basin's function is to collect, convey, and temporarily store stormwater sheet flow or stormwater conveyance. The catch basin is a concrete or plastic box or cylinder that will have a grate to allow stormwater to flow into the drain. • Conveyance pipes are located under�round and are connected to catch basins. Conveyance pipes use gravity to convey stormwater downstream. Pollution Source Control In addition to regular maintenance, Bellevue TT, LLC. shall be responsible for controlling potential pollutants at their point of use or generation. Pollution source control is the application of pollution prevention practices to prevent contamination of stormwater runoff. The plan of action will include elements such as a centralized area for any storage of equipment, lubricants, pesticides, etc. which may be stored on site. The owner may elect to follow the detailed �uidance on control of sediment pollutants as outlined in the DOE Manual. The most important practice is to ensure that no hazardous wastes, such as oil, will be dumped into the storm draina�e system. The attached checklists indicate maintenance actions which must be performed to keep the system in proper operatin� condition. The facility-specific maintenance standards contained in this section are intended to be conditions for determinin� if maintenance actions are required as identified throu�h inspection. They are not intended to be measures of the facility's required condition at all times between inspections. In other words, exceeding these conditions at any time between inspections and/or maintenance does not automatically constitute a violation of these standards. However, based upon inspection observations, the inspection and maintenance schedules shall be adjusted to minimize the len�th of time that a facility is in a condition that requires a maintenance action. An estimate for maintaining each stormwater drainage system has been provided below. These values are an estimate and are subject to change. The estimate shall not be considered the final cost of maintenance for each system and is estimated to be the cost of a single unit. 1 . Underground Detention System: a. For the under�round detention system maintenance will include vactorin� the detention system, the cost for this maintenance activity will vary dependin� on the level of sediment required to be removed. 2. StormFilter Unit: a. For each StormFilter cartridge it is estimated to cost approximately $100 to maintain. 3. Catch Basin: a. For each catch basin it is estimated to cost $600-800 to vacuum, pressure wash, replace filter, and dispose of waste. Maintenance tasks and frequencies of each task for each facility are provided on the next page. ' ' Maintenance Program Cover Sheet Inspection Period: Number of Sheets Attached: Date Inspected: Name of Inspector: Inspector's Si�nature: _� ___ . _ __ . .. _ . _. _ , - _ . . _ .� . . . _ _ ..n _ . y F ,,,, ;...� , I_ i � ; , Instructions for Use of Maintenance Checklists The followin� pages contain maintenance needs for most of the components that are part of the onsite drainage system, as well as for some components that may not be part of the onsite draina�e system. Inform the City of Renton if there are any components that are missing from these pages. Ignore requirements that do not apply to the onsite system. A checklist should be completed for all onsite system components on the following schedule: (1) Monthly from November through April. (2) Twice a year for catch basins, preferably once in late summer (September) and in early spring. (3) After any major storm (use 1-inch in 24 hours as a guideline). Use photocopies of the Operation and Maintenance Manual to check off any problems found with the onsite stormwater facilities every time an inspection takes place. Add comments on problems found and actions taken. Keep the "checked" sheets filed for future reference, as they will be used to write an annual report. Some items do not need to be looked at every time an inspection is done. Use the suggested frequency stated for each item as a guideline durin� inspection. � APPENDIX A MAINTENANCE REQUIREMENTS FOR FLOW CONTROL,CONVEYANCE,AND WQ FACIL[TIES NO. 3- DETENTION TANKS AND VAULTS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Pertormed Site Trash and debris Any trash and debris which exceed 1 cubic foot Trash and debris cleared from site. per 1,000 square feet(this is about equal to the amount of trash it would take to fill up one standard size office garbage can). In general, there should be no visual evidence of dumping. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicable public. regulations. No danger of noxious vegetation where County personnei or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Grasslgroundcover Grass or groundcover exceeds 18 inches in Grass or groundcover mowed to a height. height no greater than 6 inches. Tank or Vault Trash and debris Any trash and debris accumulated in vault or tank No trash or debris in vault. Storage Area (includes floatables and non-floatables). Sediment Accumulated sediment depth exceeds 10%of the All sediment removed from storage accumulation diameter of the storage area for Y�length of area. storage vault or any point depth exceeds 15%of diameter. Example:72-inch storage tank would require cleaning when sediment reaches depth of 7 inches for more than Yz length of tank. Tank Structure Plugged air vent Any blockage of the vent. Tank or vault freely vents. Tank bent out of Any part of tank/pipe is bent out of shape more Tank repaired or replaced to design. shape than 10%of its design shape. Gaps between A gap wider than Yrinch at the joint of any tank No water or soil entering tank sections,damaged sections or any evidence of soil particles entering through joints or walls. joints or cracks or the tank at a joint or through a wall. tears in wall Vault Structure Damage to wall, Cracks wider than Yz-inch,any evidence of soil Vault is sealed and structurally frame,bottom,and/or entering the structure through cracks or qualified sound. top slab inspection personnel determines that the vault is not structurally sound. InIeUOutlet Pipes Sediment Sediment filling 20°/a or more of the pipe. InleVoutlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inleUoutlet No trash or debris in pipes. pipes(inGudes floatables and non-floatables). Damaged Cracks wider than Yrinch at the joint of the No cracks more than Y.-inch wide at inleUoutlet pipes or any evidence of soil entering the joint of the in�eVoutlet pipe. at the joints of the inleVoutlet pipes. 2009 Surface Water Design Manual Appendix A 1 9 2009 A-5 � APPENDIX A MAINTEI�ANCE REQliIREMENTS FLOW CO�ITROL,COhVEYANCE,AI�D WQ FACiLITIES NO. 3-DETENTION TANKS AND VAULTS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Pertortned Access Manhole CoverAid not in place Cover/lid is missing or only partially in place. Manhole access covered. Any open manhole requires immediate maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. not working maintenance person with proper tools.Bolts cannot be seated. Self-locking cover/lid does not work. CoverRid difficult to One maintenance person cannot remove Cover/lid can be removed and remove cover/lid after applying 80 Ibs of lift. reinstalled by one maintenance person. Ladder rungs unsafe Missing rungs, misalignment,rust,or cracks. Ladder meets design standards. Allows maintenance person safe access. Large access Damaged or difficult Large access doors or plates cannot be Replace or repair access door so it doors/plate to open opened/removed using normal equipment. can opened as designed. Gaps,doesn't cover Large access doors not flat andlor access Doors close Flat and covers access completely opening not completely covered. opening completely. Lifting Rings missing, Lifting rings not capable of lifting weight of door Lifting rings sufficient to lift or rusted or plate. remove door or plate. � ( I I ! i , I 1/9,-2009 2009 Surface Water Design Manual - Appendix A A-6 I _ � APPENDIX A MAIVTENANCE REQUIREMENTS FOR FLOW CONTROL,CONVEYANCE,AND WQ FACiL[TIES NO. 4-CONTROL STRUCTURE/FLOW RESTRICTOR Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Perfortned Structure Trash and debris Trash or debris of more than Y�cubic foot which No Trash or debris blocking or is located immediately in front of the structure potentially blocking entrance to opening or is blocking capacity of the structure by structure. more than 10°/a. Trash or debris in the structure that exceeds�/, No trash or debris in the structure. the depth from the bottom of basin to invert the lowest pipe into or out of the basin. Deposits of garbage exceeding 1 cubic foot in No condition present which would volume. attract or support the breeding of insects or rodents. Sediment Sediment exceeds 60°/a of the depth from the Sump of structure contains no bottom of the structure to the invert of the lowest sediment. pipe into or out of the structure or the bottom of the FROP-T section or is within 6 inches of the invert of the lowest pipe into or out of the structure or the bottom of the FROP-T section. Damage to frame Comer of frame extends more than'h inch past Frame is even with curb. and/or top slab curb face into the street(If applicable). Top slab has holes larger than 2 square inches or Top slab is free of holes and cracks. cracks wider than Y.inch. Frame not sitting flush on top slab,i.e., Frame is sitting flush on top slab. separation of more than'/+inch of the frame from the top slab. Cracks in walls or Cracks wider than Yz inch and longer than 3 feet, Structure is sealed and structurally bottom any evidence of soil particles entering structure sound. through cracks,or maintenance person judges that structure is unsound. Cracks wider than Yz inch and longer than 1 foot No cracks more than'/a inch wide at � at the joint of any inletloudet pipe or any evidence the joint of inleUoutlet pipe. I of soil particles entering structure through cracks. Settlement/ Structure has settled more than 1 inch or has Basin replaced or repaired to design misalignment rotated more than 2 inches out of alignment. standards. Damaged pipe joints Cracks wider than Yrinch at the joint of the No cracks more than Y,-inch wide at inleVoutlet pipes or any evidence of soil entering the joint of inleUouUet pipes. the structure at the joint of the inleUoutlet pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs imp�emented if appropriate. No contaminants present other than a surface oil film. Ladder rungs missing Ladder is unsafe due to missing rungs, Ladder meets design standards and or unsafe misalignment,rust,cracks,or sharp edges. allows maintenance person safe access. FROP-T Section Damage T section is not securely attached to structure T section securely attached to wall wall and outlet pipe structure should support at and outlet pipe. least 1,000 Ibs of up or down pressure. 'i Structure is not in upright position(allow up to Structure in correct position. I 10%from plumb). Connections to outlet pipe are not watertight or Connections to outlet pipe are water ' show signs of deteriorated grout. tight;structure repaired or replaced and works as designed. Any holes--other than designed holes—in the Structure has no holes other than , structure. designed holes. Cleanout Gate Damaged or missing Cleanout gate is missing. Replace Geanout gate. ?009 Surface«�ater Design �lanual Appendix,1 1/9/2009 A-7 APPENDIX A MAINTEVAVCE REQUIREMENTS FLOW'COT�TROL,CONVEY��ICE,AND V6'Q FACILITIES NO. 4-CONTROL STRUCTURE/FLOW RESTRICTOR Maintenance Defect or Problem Conditian When Maintenance is Needed Results Expected When Component Maintenance is Performed Cleanout gate is not watertight. Gate is watertight and works as designed. Gate cannot be moved up and down by one Gate moves up and down easily and maintenance person. is watertight. Chain/rod leading to gate is missing or damaged. Chain is in place and works as designed. Orifice Plate Damaged or missing Control device is not working properly due to Plate is in place and works as missing,out of place,or bent orifice plate. designed. Obstructions Any trash,debris,sediment,or vegetation Plate is free of all obstructions and blocking the plate. works as designed. Overflow Pipe Obstructions Any trash or debris blocking(or having the Pipe is free of all obstructions and potential of blocking)the overflow pipe. works as designed. Deformed or damaged Lip of overflow pipe is bent or deformed. Overflow pipe does not allow lip overflow at an elevation lower than design InIeUOutlet Pipe Sediment Sediment filling 20�0 or more ot the pipe. InleUoutlet pipes Gear of sediment. accumulation Trash and debris Trash and debris accumulated in inleUoutlet No trash or debris in pipes. pipes(includes floatables and non-floatables). Damaged Cracks wider than Yrinch at the joint of the No cracks more than Y.-inch wide at � inleVoutlet pipes or any evidence of soil entering the joint of the inieUoutlet pipe. at the joints of the inleUoutlet pipes. Metal Grates Unsafe grate opening Grate with opening wider than'/e inch. Grate opening meets design (If Applicable) standards. Trash and debris Trash and debris that is blocking more than 20% Grate free of trash and debris. of grate surtace. footnote to guidelines for disposal Damaged or missing Grate missing or broken member(s)of the grate. Grate is in place and meets design standards. Manhole Cover/Lid CoverAid not in place Cover/lid is missing or only partially in place. Coverllid protects opening to My open structure requires urgent structure. maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. Not Woricing maintenance person with proper tools.Bolts cannot be seated. 5elf-locking cover/lid does not work. CoverAid difficult to One maintenance person cannot remove Cover/lid can be removed and Remove cover/lid after applying 80 Ibs.of lift. reinstalled by one maintenance person. 1;9?009 ?009 Surface Water Design titanual ,lppendix A :1-8 APPENDIX .4 �1AlNTENAI�CE RE(1UIRF.'�iF,'VTS FUR FLON-'CONTROL,CO\�'El'ANCF, AVn w'Q FACILIT[ES NO. 5- CATCH BASINS AND MANHOLES , Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed ' Structure Sediment Sediment exceeds 60%of the depth from the Sump of catch basin contains no bottom of the catch basin to the invert of the sediment. lowest pipe into or out of the catch basin or is within 6 inches of the invert of the lowest pipe into or out of the catch basin. Trash and debris Trash or debris of more than Yz cubic foot which No Trash or debris blocking or is located immediately in front of the catch basin potentially blocking entrance to opening or is blocking capacity of the catch basin catch basin. by more than 10%. Trash or debris in the catch basin that exceeds No trash or debris in the catch basin. '/3 the depth from the bottom of basin to invert the lowest pipe into or out of the basin. Dead animals or vegetation that could generate No dead animals or vegetation odors that could cause complaints or dangerous present within catch basin. gases(e.g., methane). Deposits of garbage exceeding 1 cubic foot in No condition present which would volume. attract or support the breeding of insects or rodents. Damage to frame Corner of frame extends more than'/.inch past Frame is even with curb. and/or top slab curb face into the street(If applicable). Top slab has holes larger than 2 square inches or Top slab is free of holes and cracks. cracks wider than Y,inch. Frame not sitting flush on top slab,i.e., Frame is sitting flush on top slab. separation of more than'/,inch of the frame from the top slab. Cracks in walls or Cracks wider than Y�inch and longer than 3 feet, Catch basin is sealed and bottom any evidence of soil particles entering catch structurally sound. basin through cracks,or maintenance person judges that catch basin is unsound. Cracks wider than'/z inch and longer than 1 foot No cracks more than'/a inch wide at at the joint of any inleUoutlet pipe or any evidence the joint of inleUoutlet pipe. of soil particles entering catch basin through cracks. SettlemenU Catch basin has settled more than 1 inch or has Basin replaced or repaired to design misalignment rotated more than 2 inches out of alignment. standards. Damaged pipe joints Cracks wider than Yrinch at the joint of the No cracks more than Y.-inch wide at inleUoutlet pipes or any evidence of soil entering the joint of inleUoutlet pipes. the catch basin at the joint of the inleUouUet pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. InletlOutlet Pipe Sediment Sediment filling 20%or more of the pipe. InleUoutlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inlet/outlet No trash or debris in pipes. pipes(includes floatables and non-floatables). Damaged Cracks wider than Yrinch at the joint of the No cracks more than Y.-inch wide at inleUoutlet pipes or any evidence of soil entering the joint of the inleUoutlet pipe. at the joints of the inleUoutlet pipes. ?009 Surface WaterDesign:�Ianual -Appendix A l;'9-'?009 A-9 APPENDIX A titAINTENANCF REQL'[REME\TS FLOV4'CONTROL,COhVEl'AI�CE,A�ID WQ FACILITIES NO. 5-CATCH BASINS AND MANHOLES Maintenance Defect or Problem Conditfon When Maintenance is Needed Results Expected When Component Maintenance is PerFormed Metal Grates Unsafe grate opening Grate with opening wider than'/e inch. Grate opening meets design (Catch Basins) standards. Trash and debris Trash and debris that is blocking more than 20% Grate free of trash and debris. of grate surface. footnote to guidelines for disposal Damaged or missing Grate missing or broken member(s)of the grate. Grate is in place and meets design My open structure requires urgent standards. maintenance. Manhole Cover/Lid CoverAid not in place Coverllid is missing or only partially in place. Cover/lid protects opening to Any open structure requires urgent structure. maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. Not Working maintenance person with proper tools.Bolts cannot be seated. Self-locking cover/lid does not worlc. CoverAid difficult to One maintenance person cannot remove Cover/lid can be removed and Remove cover/lid after applying 80 Ibs.of lift. reinstalled by one maintenance person. � �i 1 r'9?009 2009 Surface�Vater Design'�4anual .Appendix A .A-10 L APPF\DIX A '�1A11�TET�AI�CE REQUIREI��1F.1�TS FOR FL01h'CO�TROL,CO\VEYAI�CE, A'�D VVQ FACILITIF.S NO. 6-CONVEYANCE PIPES AND DITCHES Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Pipes Sediment�debris Accumulated sediment or debris that exceeds Water flows freely through pipes. accumulation 20%of the diameter of the pipe. Vegetation/roots Vegetation/roots that reduce free movement of Water flows freely through pipes. water through pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Damage to protective Protective coating is damaged;rust or corrosion Pipe repaired or replaced. coating or corrosion is weakening the structural integrity of any part of pipe. Damaged Any dent that decreases the cross section area of Pipe repaired or replaced. pipe by more than 20%or is determined to have weakened structural integrity of the pipe. Ditches Trash and debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared from square feet of ditch and slopes. ditches. Sediment Accumulated sediment that exceeds 20%of the Ditch cleaned/flushed of all sediment accumulation design depth. and debris so that it matches design. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicable public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Vegetation Vegetation that reduces free movement of water Water flows freely through ditches. through ditches. Erosion damage to Any erosion observed on a ditch slope. Slopes are not eroding. slopes Rock lining out of One layer or less of rock exists above native soil Replace rocks to design standards. place or missing(If area 5 square feet or more,any exposed native Applicable) soil. 2009 Surface Water Design Manual -.Appendix A 1'9!?009 A-11 — � APPENDIX A v1A[NTE\AI�CE REQliIREME�ITS FLOW CO�ITROL,CONVEY'ANCE,AND WQ FACILITIES NO. 11 - GROUNDS (LANDSCAPING) Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash or litter Any trash and debris which exceed 1 cubic foot Trash and debris cleared from site. per 1,000 square feet(this is about equal to the amount of trash it would take to fill up one standard size offce garbage can). In general, there should be no visual evidence of dumping. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicable public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Grass/groundcover Grass or groundcover exceeds 18 inches in Grass or groundcover mowed to a height. height no greater than 6 inches. Trees and Shrubs Hazard Any tree or limb of a tree identified as having a No hazard trees in facility. potential to fall and cause property damage or threaten human life. A hazard tree identified by a qualified arborist must be removed as soon as possible. Damaged Limbs or parts of trees or shrubs that are split or Trees and shrubs with less than 5°k broken which affect more than 25%of the total of total foliage with split or broken foliage of the Vee or shrub. limbs. Trees or shrubs that have been blown down or No blown down vegetation or knocked over. knocked over vegetation. Trees or shrubs free of injury. Trees or shrubs which are not adequately Tree or shrub in place and � supported or are leaning over,causing exposure adequately supported;dead or of the roots. diseased trees removed. 1,9 2009 2009 Surface�Vater Design:l4anual Appendix A A-16 �_ APPENDIX A ti1.AINTF.tiA?�CF REQL'IRE11E�1TS FLOW CONTROL,CONVF.l'.AtiCF., AND VGQ FACILITIES NO. 21 -STORMFILTER (CARTRIDGE TYPE) Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is PerFormed Site Trash and debris Any trash or debris which impairs the function of Trash and debris removed from the faciliry. facility. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oils;gasoline,concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surtace oil film. Life cycle System has not been inspected for three years. Facility is re-inspected and any needed maintenance performed. Vault Treatment Sediment on vault Greater than 2 inches of sediment. Vault is free of sediment. Area floor Sediment on top of Greater than Y�inch of sediment. Vault is free of sediment. cartridges Multiple scum lines Thick or multiple scum lines above top of Cause of plugging corrected, above top of cartridges. Probably due to plugged canisters or canisters replaced if necessary. cartridges underdrain manifold. Vault Structure Damage to wall, Cracks wider than Yz-inch and any evidence of Vault replaced or repaired to design Frame, Bottom,and/or soil partiGes entering the structure through the specifications. Top Slab cracks,or qualified inspection personnel determines the vault is not structurally sound. Baffles damaged Baffles corroding,cracking warping,and/or Repair or replace baffles to showing signs of failure as detertnined by specification. maintenancefinspection person. Filter Media Standing water in 9 inches or greater of static water in the vault for No standing water in vault 24 hours vault more than 24 hours following a rain event and/or after a rain event. overflow occurs frequently. Probably due to plugged filter media,underdrain or outlet pipe. Short circuiting Flows do not properiy enter filter cartridges. Flows go through filter media. Underdrains and SedimenUdebris Underdrains or clean-outs partially plugged or Underdrains and clean-outs free of Clean-Outs filled with sediment andlor debris. sediment and debris. InIeUOuUet Pipe Sediment Sediment filling 20%or more of the pipe. InleUoutlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inleUoutlet No trash or debris in pipes. pipes(includes floatables and non-floatables). Damaged Cracks wider than Yz-inch at the joint of the No cracks more than Y.-inch wide at inleUoutlet pipes or any evidence of soil entering the joint of the inleUoutlet pipe. at the joints of the inleUoutlet pipes. Access Manhole CoverAid not in place Cover/lid is missing or only partially in place. Manhole access covered. Any open manhole requires immediate maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. not working maintenance person with proper tools.Bolts , cannot be seated. Self-locking cover/lid does not work. Cover/lid difficult to One maintenance person cannot remove Coverllid can be removed and remove coverllid after applying 80 Ibs of lift. reinstalled by one maintenance person. Ladder rungs unsafe Missing rungs,misalignment,rust,or cracks. Ladder meets design standards. Allows maintenance person safe access. Large access Damaged or difficult Large access doors or plates cannot be Replace or repair access door so it doorslplate to open opened/removed using normal equipment. can opened as designed. 1/9,2009 2009 Surface��'ater Dcsign l�tanual -Appendix A �� A-30 .4PPEI�DIX A MAINTENANCE REQUIREMENTS FOR FLOW CONTROL,COI�VEYANCE,AND V4Q FACILITIES NO. 21 -STORMFILTER(CARTRIDGE TYPEj , Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Pertormed Gaps, doesn't cover Large access doors not flat andlor access Doors close flat and cover access completely opening not campletely covered. opening completely. Lifting Rings missing, Lifting rings not capable of lifting weight of door Lifting rings sufficient to lift or rusted or plate. remove door or plate. ?009 Surface Water Design Vianual -Appendix A 1 r9-'?009 A-3 l APPENDIX A MAIhTENANCE REQUIREMEVTS FOR FLOVb'CONTROL,CONVEYANCE,AhD WQ FACiLITIES NO. 24- CATCH BASIN INSERT Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is PerFormed Media lnsert Visible Oil Visible oil sheen passing through media Media inset replaced. Inse�[does not fit Flow gets into catch basin without going through All flow goes through media. catch basin properly media. Filter media plugged Filter media plugged. Flow through filter media is normal. Oil absorbent media Media oil saturated. Oil absorbent media replaced. satu rated Water saturated Catch basin insert is saturated with water,which Insert replaced. no longer has the capacity to absorb. Service Iffe exceeded Regular interval replacement due to typical Media replaced at manufacturers average life of inedia insert product,typically one recommended interval. month. i Seasonal When storms occur and during the wet season. Remove,clean and replace or install �, maintenance new insert after major storms, monthly during the wet season or at manufacturer's recommended interval. 2009 Surface Vb'ater Design Manual ��ppendix A 1;9i2009 I :1-35 ' /��%��TCAV ..- . - �.�r� ��►�� ■ �■�►.. - CpNSTRt1CT10N PROOUCTS INC. StormFilter Inspection and Maintenance Procedures - — ____.__ -�_ � � _ _ �� +�E4 � � . � f� � � _ •y . rfi->�.�- '`\ `k'�--��. �� -� �: t '�ii". -`v �e . .�A.'' { �� f��:'''. � . .: _ °,�s 1� �;t; � < - , _ � , + ��. ,� �! ' - . � � . '� , - . .� -.,_ � y„�.�. � �;'�. � t '�� , �, - � ' , � _ �'��x.f�. ; �: � � � � � - /{ •�, ,j . ' =-i.ti, , �( . .. � �. . , . . ._ _ The Srormwarer Manageme�� StormFilter� Maintenance Guidelines In addition to these two adivities, it is important to check the condition of the StormFilter unit after major storms for Tne primary purpose of the Stormwater Management StormFilter� is to filter out and prevent pollutants from entering Potential damage caused by high flows and for high sediment our waterways. Like any effective filtration system, periodically accumulation that may be caused by localized erosion in the these pollutants must be removed to restore the StormFilter to its drainage area. It may be necessary to adjust the inspection/ maintenance schedule depending on the actual operating full efficiency and eifectiveness. conditions encountered by the system. In general, inspection Maintenance requirements and frequency are dependent on the activities can be conducted at any time, and maintenance should pollutant load characteristics of each site. Maintenance activities occur, if warranted, in late summer to early fall when flows into may be required in the event of a chemical spill or due to the system are not likely to be present. excessive sediment loading from site erosion or extreme storms. It s a good practice to inspect the system after major storm events. MdII1te11dC1Ce FP2C�11e11C�/ The primary factor controlling timing of rra ntenance of the Maintenance Procedures StormFilter is sediment loading. Although there are likely many effective maintena�ce options, we believe the following procedure is efficient and A properly functioning system will remove solids from water by trapping particulates in the porous structure of the filter media can be implemented using common equipment and existing inside the cartridges. The flow through the system will naturally maintenance protocols. A two step procedure is recommended decrease as more and more particulates are trapped. Eventually as follows: the flow through the cartridges will be low enough to require 1. Inspection replacement. It may be possible to extend the usable span of the �nspection of the vault interior to determine the need for cartridges by removing sediment from upstream trapping devices maintenance. on a routine as-needed basis in order to prevent material from being re-suspended and discharged to the StormFilter treatment �. Maintenance system. Cartridge replacement Sediment removal Site conditions greatly influence maintenance requirements. StormFilter units located in areas with erosion or active Inspection and Maintenance Timing construction may need to be inspected and maintained more at least o�e scheduled inspedion shou d take place per year with often than those with fully stabilized surface conditions. maintenance following as warranted. The maintenance frequency may be adjusted as additional �irst, an inspection should be done before the winter season. monitoring information becomes available during the inspection D�ring the inspection the need for maintenance should be program. Areas that develop known problems should be determined and, if disposal during maintenance will be required, inspected more frequently than areas that demonstrate no samples of the accumulated sediments and media should be problems, particularly after major storms. Ultimately, inspedion i obtained. and maintenance activities should be scheduled based on the historic records and characteristics of an individual StormFilter Second, if warranted, a maintenance(replacement of the filter system or site. It is recommended that the site owner develop cartridges and removal of accumulated sediments)should be a database to properly manage StormFilter inspection and , performed during periods of dry weathe�. maintenance programs. P�or to the development of the maintenance database, the =cllowing mainterance frequencies should be followed: �. � Inspection - '``"°�' +:.s Jne time per year , �"�"� � ' �� ;rr�r major storms �� Maintenance � % ,.� � �;� � ,��-.5. �-� � As needed, based on results of inspection (The average ��. ,4 ��__� ��"�� `-��;� maintenance lifecycle is approximately 1-3 years) �'°� ' �~-� J � _ �" �, "�'�g�c� Per Regulatory requirement � ��k • ; '� '�' �-�:�`� In the event of a chemical spill . •�-x=��*��"~ � �� Frequencies should be updated as required. The recommended I • -�� ^�t al frequency for inspection is one time per year. StormFilter �� ?s should be inspec?ed af+.er maior stor^�s. �'f'�a� • -- . --._ , ._ i-''t��C��.'�R'.'-'..,_t�. ..� � , (�i-h . ^ '�' - Sediment removal and cartridge replacement on an as needed 7. Remove safety equipment. basis is recommended unless site conditions warrant. 8. If appropriate, make notes abo�t the local drairage area Once an understanding of site characteristics has been relative to ongoing construction, eros�or. problems, or high established, maintenance may not be needed for one to three loading of other materials to the system. years, but inspection is warranted and recommended annually. 9. Discuss conditions that suggest maintenance and make decision as to weather or �ot ^�a,rtenarce �s needec Inspection Procedures Maintenance Decision Tree The primary goal of zr inspection is to assess the condition of The need for ma ntenance�s:,p�caily based �n �esu ts c�'n� the cartridges relative to the level of visual sediment loading as inspection. The following Maintenance Decision Tree should be used as it relates to decreased treatment capaciry. It may be desirable to a general guide. {Other factors,such as Regulatory Requiremenr;, may conduct this inspection during a storm to observe the relat ve ��e�'-� b� '��:c'er,�'' flow through the filter cartridges. If the submerged cartridges �� _ �,�� are severely plugged, then typically large amounts of sediments g � " � will be present and very little flow will be discharged from the ''''� ' -=,r4 '��' =��.� drainage pipes. If this is the case, then maintenance is warranted � and the cartridges need to be replaced. Warning: In the case of a spill, the worker should abort inspection activities until the proper guidance is obtained. � Notify the local hazard control agency and CONTEC-I Construction Produc's mmedia�elv _ ' To ccnduct an inspection: �` �." Important: Inspedion should be performed by a person who �� ,� � is familiar with the operation and configuration of the �_��` ;�3: _ StormFilter treatment unit. 1. If applicable, set up safety equipment to protect and nvt fy surrounding vehicle and pedestrian traffic. ' � 2.Visually inspect the external condition o=the �n t a�d :ake 1 Sediment loading on the vault floor. "-`-,�", ""."�P-�, �', -�"fP'•< °'-,h��'"�� a- If >4" of accumulated sed�m�rt, maintenance �s � Q - required. +� � ? 2 Sed�me�t loading on top of the cartr�dge � - A •� _ a_ If >1/4" of accumulation, n�aintena�ce ��s �ec�i�ed_ n.4� - ' 3 �:b�nerged cartridges. �j 7� _��.: '�: a- If >4"of static�va-er in the car*.ncoe ba,,�for more ,, r-at 24 hours after zr,� �= ��in e��.e�r, mainte^a�;e is ; '.��r �'��`�, '� �ecuired. , 'r. tis,..�`�,k , -� � �.,. � `a''�`^r: ��' r�•' � , . ^�.,y,� � ' „y � .cged media - r a If pore space between media granules �s abse^t, . -.�. � --� -�``' { maintenance is required. ��es.. ,�� ' — �� - "' S Bypass condition. ��.._ ____--- _ .�: � a. If inspection is conducteC durmg an average rain fall s-�;�:�=�: '�",,�z•�4,.,:'..� - event and StormFilter remains in bypass condition *-i� "�r��E��"�,�� - � (tivater over the intemal outlet baffle ti^:�all o�s�orne�ged � �V'��;� '� ''�r*�"� �; i' . � cartrid es), maintenance s re u�red �'r'.� ,.�,-�'� , .. �,..�.��, 9 q 3. Open the access oo^als to the vault and allow the system vent. 6. Hazardous material release. 4.Without entering the vault, visually insped the inside of the a. If hazardous material �e ease ;automot ve fl�,;�cs or o;rer) unit, and note accumulations of liquids and solids. is reported, ma ntena�ce is requirec. 5. Be sure to record the level of sediment build-up on the floor of 7.pronounced scum line. the vault, in the forebay, and on top of the cartridges. If flow a. If pronounced sc�m I ne (sa;; >_ 1;4" :hicK; �; o-eser- is occurring, note the flow of water per drainage pipe. Record above top cap, mainterance is required. all observations. Digital pictures are valuable for historical documentation. 8.Calendar Lifecycle. 6. Close and fasten the access portals. a. If system has not been ma��tainec for 3 years maintenance is required. � Operation & Maintenance Manual Map TACO TIME — RENTON HIGHLANDS � oa.iois � � � -- - � � �� / ;_ I I . , ,. � ' __ � � tt�. _ - J i _ � :: �� - .. CB �13 ; , , -; - f/ _- - - "f , __ _- —s-- _ ` __ GB 14_ =, � --- - —_ _- �� -r�r�Ti n�--.n� _ _ _-- - . ' i _ _ . _�._ -- _ ---- - _ —--- - -- -- —__ _ _. _ ��_._ �� CB �i 03 � � -----T—.:——_:-- —__- ___ � � � CB �07-'J� ` ; �, CB �16 CB �17 - S�TO LTER D ,� i _ � � � C6 #1Q0 �, � � '-�� CB �18 - STORMFILTER E � � � _ � � � l+B ��V � u �J � ; � � ( -c-��--�`L CB �05 -- � ,�__ � ; � � � � I 2C� ' � G �� - _ _ . ---_ ,�L---=—�_- CB #i9 i � i � il � � ) t ( ' a ' _ __ � ' L a' -0 - , s � _ --- -—� I — 11 . _i SCaLE 1"= 20' CB #20 � � ;� _ � _ ; o — _ ' - 3 ,i ';r � i� � _ l� , j�—____ .' . �2_ � �'' __.__._ � r - ' i - , � � ;.� , � , : ; - ; ; � i � , � __ _._.___ ------ _ � i; � . � � � -�--_—`*�'`-1� � , • ._--. -� r � a - �,.� � °s �� ; � ' � �_ � i��. _ �-� � - - �� ' � � � � � _� �/ a � , i � � ` � j � � 4 � � ..� � � ; , � ,� � �__ � � � , �—=— ——— a - � . = � , � � , � � , ; � � ce #�o� � = : � � �- .. __ __ a . ___�_ _ : � ---- f`LG/11LL/L(G1/1.L1'ti ` � ------------- _ ° � r -, � g � � , , , �, - _ - � - �` i~ � i �`�, � � ' ' CB 12 - STORMFILTER C ! � � � 'I � . , I '4 � , - ___ -- - � -- � � � , � � _ . : �— -- � 1 � � , - ti:, i - -- - , � �:, I -- - - - - � �. , , : . 4 ,, ; � � . � , �� - - - _ , _ --� � � #08 CB #09 °I �B #it - STOR�IFILTER B � _ + ( �, _ --- -= Cg ;#04 ., � ; ___i ��\ , ti � CB__#10 CB �#03 , ,�: _ - _ � �,. ,}h�, 1 . I --- , --~.�`. �;x .. :; �-�=t-- -' _.. _ _ - ; ,_,:' CB �10 - � ORMFILTER A , �'' ` . �. g z . � Y . �� __ -_ _ �-__ _____ ��04 _ , , ` � _ __ ' cB +j�� _ � �" � CE �J� �-�� ( _ { . � ._:, , " �-�;_=� i .�}--- ,_ - _ _ , _ ' __ �� -- — -- — ________-- " _� _- . _ ._ _ -_ _ _ -_ - ._ -_ - --- � — � —� ---._ _____ —_ T --� � — —_ � ' k _ ----�—� �—_.._.��_.r=� --- 7 _� 5 ---- T ,.�._ ��--�+�-- --. �. �._�_ _ . . . _ : _� __ ' _- ' �—�_i—_._' -----_ __' , �� '. .... _...� . .�' _.T-... ,��.;� .�c._. " .., �_� ^-- �' _-,_ ` ,_ _� ', : ' _ � s'�.► . ` �.—. ♦ -._.�--r.,:-. - ..__ - ' -�.. -r-_ _...�__�1._ _7--^--�--�-�aa.L-a.� — _ , �.� —.. - �_ . _ --�� ` r, ; _», ----- � ------�°�.,,_..�,�_� _ -•w- - �-^ —- - ��`��'—�y�- ' 1 _ _� , - -_ I � , ._— _--_ � � �+� �__L��.. --Y��— � —_' _ � __._�T ��'�. f -� I�ifr __ ..�"._—_' T '__' ' _ _ .-_i--w _— _ .._ ...— __"� —.� i. ,lr�� ` '^�-L�._' .._'. .Y�.:ay-.__ L .._._ �.S-_ . _ t . . — - _.. -_ . ._. ._. . •' . _ � Assumptions � ?�;� � • No rainfall for 24 rours or more :_ • No upstream detention (at least not c�ain rg �rto StormFilterj �' '�'� , a _ • Structure is online • Outiet pipe is dear of obstruction k-`:� ' - `t • Construction bypass is plugged ` � Maintenance �' � �. Depending on the configuration of the particular system, ;; _�„'�` ,, � maintenance personnel will be required to enter the�✓ault to 't �%��y��' j � . perforri the maintenance. - Important: If vault entry is required, OSHA r�les for confined space entry must be followed. �'` - a Filter cartridge replacement should occur during dry weather. `. } ' :� _ � It may be necessary to plug the filter inlet pipe if base flows is � „ -'�t:�;�'r,, "� ' - occurring. , '�'� -`' z� ,� -� Replacement cartridges can be delivered to the site or customers �' _ . _ facility. Information concerning how to obtain the replacement � _ '' ;; cartridges is a�ailable from CONTECH Construction Products. � 4� , "" Warning: In the case of a spill, the maintenance personnel * shou'd abort maintenance activities until the proper guidance is obtained. Notify the local hazard control `' agency and CONTECH Construction Products immed ately. � To conduct cartridge replacement and sediment removal �� maintenance: Important: Note tna:ca�tridyes con,aining �eaf inedia (CSFj o0 1. If applicable, set up safety equipment to protect maintenance not require unscrewing from their connectors. Take care . personnel and pedestrians from site hazards. not to damage the manifold connectors. This connedor 2.Visually inspect the external condition of the unit and take should remain installed in the manifold and could be notes concerning defects/problems. capped during the maintenance activity to prevent sediments from entering the underdrain marnfold. 3. Open the doors(access portals)to the vault and allow the system to vent. B. Remove the used cartridges (up to�50 Ibs. each)from the 4.Without entering the vault, give the inside of the unit, vault. including components, a general condition inspection. Important: Care must be used to avoid damaging the 5. Make notes about the external and internal condition of cartridges during removal and installation.The cost of the vault. Give particular attention to recording the level of repairing components damaged during maintenance sediment build-up on the floor of the vault, in tne`orebay, wiil be the responsibility of the owner unless CONTECH and on top of the internal components. Construction Products performs the maintenance activities 6. Using appropriate equipment offload tne replacer-�en+. and damage is not related to discharges to the system. cartridges (up to 150 Ibs. each)and set as�de. C Set the used cartrdge aside or 'oad o�to t^e haulirg 7. Remove used cartridges from the vault using one of the truc<. following methods: D. Con;inue steps a tr!o�gh c �^t,l al car+.ridges have been Method 1: removed. A. This activity will require that maintenance personnel enter the vault to remove the cartridges from the under drain Method 2: manifold and place them under the vault opening for A. Ente� t��e vault „s�rg aop�oqr�a-e confi�ed space lifting (removal). Unscrew(counterdockwise rotations) protocols. each filter cartridge from the underdrain connector. Roll the loose cartridge, on edge, to a convenient spot B Unscre�v the cartridge cap. beneath the vault access. C. Remove the cartridge hood screws(:3j �ood and float. Using appropriate hoisting equipment, attach a cable D. At location ,�nder structure access, tip the cartndge on ts from the boom, crane, or tripod to the loose cartr.dge side. Contact CONTECr Const�„c,o� Prcducts for sugqes,ed attachment d�vices- Important: Note that cartridges containing media other than the leaf inedia require unscrewing from their threaded connectors.Take care not to damage the manifold connectors.This connector should remain installed in the manifold and capped if necessary. D. Er-�oty the cartridge onto the vault rloor. Reassemble the empty cartridge. _ � � � E. Set the empty, used cartridge aside or load onto the ` .`_. '�#� � hauling truck. - - .� `��_ - � F. Continue steps a through e until all cartridges have been removed. ; — k.,... �. �� :�� ,� �"�,�, � - -� .. �x� ` ��- � .� �;rr„ � � -• ` .:;._ � . `"a,=. � __-.. " .. � •_ . __ --�i��'`I I �� . '�`�: "_ 1 � 1 .' i � '. Y �� _ ( 8 Remove accumulated sediment from the floor of the vault and from the forebay.This can most effedively be ,. accomplished by use of a vacuum truck ; 9. Orce the sediments are removed, assess the condition of the ' `' ' �- ? vault and the condition of the connectors. The connectors � --� -- � �' � are short sections of 2-inch schedule 40 PVC, or threaded �� schedule 80 PVC that should protrude about 1" above tne ,,,,�,rf "� -_ �.,� floor of the vault. Lightly wash down the vauit interior. - a. Repla�e any damaged connectors. �.: 10. Using the vacuum truck boom, crane, or tripod, lower and `" �' install the new cartridges. Once again, take care not to damage connections. �1 Close and fasten the dooc "2. Remove safety equipment. '�3. Finally, dispose of the accumulated materials in accordance �vith applicable regulations. Make arrangements to return the used em t cartridges to CONTECH Construction Products. Related Maintenance Activities - Material Disposal Performed on an as-needed basis The accumulated sediment found in stormwater treatment StormFilter units are often just one of many structures in a more and conveyance systems must be handled and disposed of in comprehensive stormwater drainage and treatment system. accordance with regulatory protocols. It is possible for sediments to contain measurable concentrations of heavy metals and , In order for maintenance of the StormFilter to be successful, it organic chemicals (such as pesticides and petroleum products). is imperative that all other components be properly maintained. Areas with the greatest potential for high pollutant loading The maintenance/repair of upstream facilities should be carried include industrial areas and heavily traveled roads. out prior to StormFilter maintenance activities. Sediments and water must be disposed of in accordance with In addition to considering upstream facilities, it is also important all applicable waste disposal regulations.When scheduling to correct any problems identified in the drainage area. Drainage maintenance, consideration must be made for the disposal of area concerns may include: erosion problems, heavy oil loading, solid and liquid wastes.This typically requires coordination with and discharges of inappropriate materials. a local landfill for solid waste disposal. For liquid waste disposal a number of options are available including a municipal vacuum truck decant facility, local waste water treatment plant or on-site treatment and discharge. �� sR 2ECYCLED `a�APER A�v��\�TCAIJ ��;�i�� cow cr�on rnaoucrs iHc. 800.338.1 122 www.contech-cpi.com Support • Drawings and specifications are available at contechstormwater.com. • Site-specific design support is available from our engineers. �02009 CONTECH Construction Products Inc. CONTECH Construction Products Inc. provides site solutions for the civil engineering industry. CONTECH's portfolio includes bridges, drainage, sanitary sewer, stormwater and earth stabilization products. For information on other CONTECH division offerings, visit contech-cpi.com or call 800.338.1122 Nothing in this catalog should be construed as an expressed warranty or an implied warranty of inerchantability or fitness for any particular purpose. See the CONTECH standard quotation or acknowledgement for applicable warranties and other terms and conditions of sale. The produd(s)descn6ed may be protected by one or more of the following US patents: 5,322,629;5,624,576;5,707,527.SJ59,415;5,788,848,5,965.'S7,h,02?,E39:0,350,374;6,40h,218; 0.641.720;6,51'�,595;6,649,045;6,991,714;0,998,038;7,186,058;related foreign patents or othe�patents pending. —� • ' • � ' • • Date: Personnel. ' Location: System 5ize: System Type: Vault _ Cast-In-Place ❑ Linear Catch Basin ❑ Manhole � Other � Date: Sediment Thickness in Forebay: Sediment Depth on Vault Floor: ' Structural Damage: ' Estimated Flow from Drainage Pipes(if available): Cartridges Submerged: Yes � No ❑ Depth of Standing Water: Stormfilter Maintenance Activities(check off if done and give description} � Trash and Debris Removal: � � Minor Structural Repairs: � Drainage Area Report Excessive Oil Loading: Yes _ No �] Source: Sediment Accumulation on Pavement: Yes � No � Source: I Erosion of Landscaped Areas: Yes � No [ Source: Items Needing Further Work: Owners should contact the local pubiic works department and inquire about how the department disposes of their street waste residuals. � Other Comments: i � � ( i � � � , I Review the condition reports from the previous inspection visits. � ' - • • Date: PersonneL ' Location: System Size: System Type: Vault ❑ Cast-In-Place � Linear Catch Basin ❑ Manhole _ Other �__ List Safety Procedures and Equipment Used: System Observations I Months in Service: Oil in Forebay: Yes _ Vo ] Sediment Depth in Forebay: i Sediment Depth on Vault Floor: Structural Damage: Drainage Area Report Excessive Oil Loading: Yes ❑ No J Source: Sediment Accumulation on Pavement: Yes � No � Source: Eresion of Landscaped Areas: Yes No � Source: _ _ __ StormFilter Cartridge Replacement Maintenance Activities Remove Trash and Debris: Yes [; No [ Details: Replace�artridges: Yes � No � Details: Sediment Removed: Yes � No � Details: Quantity of Sediment Removed (estimate?}: Minor Structural Repairs: Yes � No � Details: Residuals (debris, sediment) Disposal Methods: ' N otes: SAMPLE MAINTENACNCE ACTIVITY LOG Maintenance Program Cover Sheet i Inspection Period: Number of Sheets Attached: Date Inspected: Name of Inspector: Inspector's Signature: Instructions for Use of Maintenance Checklists ` F The following pages contain maintenance needs for most of the components that are part of the onsite drainage system, as well as for some components that may not be part of the onsite drainage system. Inform the City of Renton if there are any components that are missing from these pages. Ignore requirements that do not apply to the onsite system. A checklist shoutd be completed for all onsite system components on the followin� schedule: (1) Monthly from November throu�h April. (2) Twice a year for catch basins, preferably once in late summer (September) and in early sprin�. (3) After any major storm (use 1-inch in 24 hours as a �uideline). Use photocopies of the Operation and Maintenance Manual to check off any problems found with the onsite stormwater facilities every time an inspection takes place. Add comments on problems found and actions taken. Keep the "checked" sheets filed for future reference, as they will be used to write an annual report. Some items do not need to be looked at every time an inspection is done. Use the suggested frequency stated for each item as a guideline during inspection. APPENDIX A MAINTENA�ICE REQUIREMENTS FOR FLOW CONTROL,CONVEYANCE,AND WQ FACILITiES NO. 6-CONVEYANCE PIPES AND DITCHES Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Pipes Sediment 8 debns Accumulated sediment or debris that exceeds Water flows freely through pipes. accumulation 20%of the diameter of the pipe. rc' :g ;4 �� Vegetation/roots Vegetation/roots that reduce free movement of Water flows freely through pipes. � water through pipes. o �', Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of � O pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. D o Source control BMPs implemented if m p appropriate. No contaminants o� present other than a surface oil film. ��o �� Damage to protective Protective coating is damaged; rust or corrosion Pipe repaired or replaced. _�" coating or corrosion is weakening the structural i�tegrity of any part of pipe. Damaged Any dent that decreases the cross section area of Pipe repaired or replaced. pipe by more than 20%or is determined to have weakened structural integrity of the pipe. Ditches Trash and debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared from square feet of ditch and slopes. ditches. Sediment Accumulated sediment that exceeds 20%of the Ditch Geaned/flushed of all sediment accumulation ' design depth. and debris so that it matches design. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicable public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil,gasoline,concrete slurries or paint. according to applicable regulations. , Source conVol BMPs implemented if � appropriate. No contaminants present other than a surface oil film. Vegetation Vegetation that reduces free movement of water Water flows freely through ditches. through ditches. Erosion damage to Any erosion observed on a ditch slope. Slopes are not eroding. slopes Rock lining out of One layer or less of rock exists above native soil Replace rocks to design standards. place or missing(If area 5 square feet or more,any exposed native Applicable) soil. 08;08i14 o � _ mprr �n2 ,�� 00= �O� '�31 C -DI ,C�3 mZrr Z mDr� � C � R D C Z I I� L- 2009 Surface Water Design Manual—Appendix A U9,�2009 A-ll � I'I � n � D Appendix A — Drawings BCRADESIGN.COM PARCEL NUMBER: zo ,o o zo '�'�912 TACO TIME RENTON HIGHLANDS LEGAL DESCRIPTION:,eYOT�eqs, xe�e: �'= zo e s TWU PORlION OF 1HE YIEST HNF OF 7HE SOUTHM'6i OLL4HfER OF THE SOURMEST WMiER OF SECTION 10,TOWNSWP 23 � NORiH,RMlGE 5 EAST,W.N.,IN KING COUNTY,WA41NCfON,DESCPoBED AS Fq10W5:BEpNNNC AT THE SOUTNFAS�CORNER 4114 NORTHEAST 4TH STREET RENTON,WA 98059 -'�N,- OF S A D SECf10N 10;THENCE NORiH 00'25'13'WEST 42.04 FEET;THEHCE SOUIH 8801'S6"E0.S7 PARALLEL WRFI THE SOUTH � IJNE OF SYO SUBDMSION�0.0.7 FEET TO THE INTERSECTION OF THE FASf 4ARpN OF UNION AVENUE N.E.WffN THE NpZIH A PORTION OF THE W%,SW Yq,SW%,SECT 10,TWP.23N,RGE 5E.W.M. wu+cn+aF n.e.rn�m�r:n��rarm+arss'i3'wEsr Ka�c suo�sr wu�ciN ise.oa cgr;rno+ce swni CITY OF RENTON,KING COUNTY,WASHINGTON esoz'se'�sr i�z.�2�r ro n��sr u�oF TME w�sr iez.oa��r ov sao sueavrs�oN�v+o TMe rnuE Pavr ov Ii BEQNMINCS;7HENCE NOHiH 89'13'21�FASf 214.61 FEEf TO THE WESf LNE OF hE FIST 250.00 FEET OF 540 MESf FWF I ..__ (AS YEASURED ALONC THE SOUIN llE TFIEREOFj:THQICE SOUiH 00'16'39'FASf ALONG SND WESf 11NE 166.33 FFET TO z% . SND HORlH W�RGiN OF N.E 4TH Sft�Ef;THENCE NORIH 9602'S8'NESf ILONG SND NORfH W�RCM 214.41 FEEf TO SND EAST LINE OF THE NESf 182.00 FEET OF SND A1�IY1510N:THENCE NORfH OP25'IJ'WEST ALONG SND EASf 11NE 158.00 y � , i . FEET�0 THE iRUE PoIM OF ffqNNMG: -��- nro �.,,c PMCE1: 1023059129��'>, _ .. (N50 IOqIMN AS LOT 2 OF Cfff OF RDffON LOT UNE ID�M15fYIXf 007-82,RECORUm UNOEP RECORDRIG N0.8207079005) r+E Sth i� �. N;�v��t - - ---- - � w (n . �- -- -- -- o � Z EXCEPf TFi4T PORfION CONVtIED TO Cltt OF RENTON BY OEEU IR�Df7t FtECOR0ING N0.20120416000525.SRWTE IN THE - COUMY OF KING,SfATE OF WASHNGTON. a J BASIS OF BEARINGS:;vnflaa,»m;aeaanoFr�Nroncorrrao�aro-Nera� ' � , a 2 wne3(ei)e�wric wtis cucuurm usr�c tr{e weusi+rogrqH ov n�E soun+wEsr sEcian corafx oF sEcna+ �o, T sr �� I (} T23N, ROSE,W.11.,ALSO NNO�MI 15 Cf1Y OF RENTDN CON7ROL POIMT 1503 MD A LINE TO THE SOUiHFASi CARIER OF SNO NE in-�.� �I i I = SECTION,NSO NNOWN AS pTY OF RENTON CONIROL PONIT 1NMBFR iB52.S�D t1NE MAS TAKEN AS S011IN BB'12'17'FASf. � 0 �Mn�y � � DATUM INFORMATION:�ruvoaaa�RcmoFr�nroN�ovma evon+easi � _ � � �- - _�I I H e o 0 0 � � NAVD88 EIEVATI(?I WAS OEfERMNED HY U9NG 7FIE PU�ISH ELEVAlION ON CITY OF RENTON CONIROL POIM NUtlffR 1503 _ .. `� � r• o 0 0 0 0 0 - Z AT THE SOUfFlNESi CORNER OF SECIION 10,T23N.fdUSE,W.N..NAVOBB E1.EVATION={01.02' ��a • . . _ . � _... w ^Y � �PROJECT SITE � ' � � � SITEDATA: ^��^ � � �� I 0 � �s�.� � : � nauir�rt Pao�cna+za+e z: . Tvw,.�� nM,� - I I raxcE�io:3os9�z � PROJECT LOCATED WRNN 7Ff WUR'ER PROTECf10N MEA(MIQ SHNl CONPLY N17FI SPECUL REWIRENENf�6 OF TF1E rrtrian5n6o � 0.T7aCRf � . f- SURFACE WUER DESIGN WMY�I MID AOIkFER RtOIECIION REGUUTIq14((a/C hJ-050). ,yc� .-. -. � ZONED:A�I "� e I O iva�tmous u�. .;t ,, ; � o � � s� , V A EIOSfINC INPEKNOUS NtEA 28.360 g FUTURE �.8 � '`--: '� I a a H�w��m,o�s�,.��oX�,,,,�r z�,000 g��u�. VICINITY MAP I BUILDINGPAD � � C.NEf NEYI IIAPERVpUS SURFACE-S.WO SF NTS � � I .'^� � CONDITIONS OF APPROVAL: � � rAcoTiME I �N � I � Q , � ; f � 1. THE MPIJCANT SHALL 6E REWIRm TO PEMSE THE SITE NID LVOSCAPIHC PUN TO PROWDE A NI�NMW 10-FWT PROJECT TEAM � �� LAN�SCAPE FRONTM,E/LONG NE 4TH Sf.M17H TNE E7(CEPfpN OF TFiE TMO'BUMP OUTS'ON THE ESAT Mq WESf ENOS SHEET INDEX '' _ OF THE IE 4TH Sf. FRONfK�.7Ff WlOSCIPm'BUMP OU7'IHEAS SHALL BE fANSIDERm PAHf OF TF£10-FOOf NA�E FRONfACE INOSCIPING REWRED BY CffY OOOE.1HE RENSED Sf1E IND t�l�60WING RN1 SFNLL BE SUBIIRTED SHEET OVYNER I O .. _ I ^ ! 70 MO APPROYED 9Y TFE CUfiRElR PUWIINC PROJECT YNNGER PfdOR TO CONSfRUCMMI PFRI/i APPRP/AL SHEET TITLE ��E Tf,LLC. NUMBER "°°'ua'F°"�r"'c�wnr � � Q �' � �' 2. 7HE IPPLICANI SFIALL SU&M A REVISm tXOSGPNG PUN WffH ELEVATIONS FOR TIE PPOPOSEU OflNM1ENTIL FENGNG ��.�98DSB rYONG THE EASiEAN PROPEHiY LME T}f RENSED WIDSCAPE RNI S11ALL BE SUBYff7ED TO MO PPPftOVm BY TViE C1.01 COVER SHEEf AND HOfaZ CONfFtOL � \ �� CIVIL ENGINEER \ -+ � ///�� CURRENT PUNNING PROJECT NNUGER PR10P TO CONSiRUCT10N PERMR IPPROVN.. C2.01 DENOLITION AND TESC PIFN � �+' / � ' DEIIOL1710N AND TESC PIAN NOTES PNO �M MC � , ` .J, ' . C2.02 2106 PAqFIC A1rENUE,SUIIE 3(10 � � I � 3. 1FiE MPL1C�l1T SW11 BE REOIHRm TO f�115E THE 4TE PUN IN ORDER TO INCORPOPwTE ADpTIpNL PFDESfRIAN DEfNLS TACOYq WA 98IO2 � CONNECfiON TO THE ABUTTINC RETNL USE TO 7HE EAST.THE REVISED SfIE WN1 SHALL BE SU9/1fTm TO AND C3.01 SITE MI�SUF3AqHG PIAN (y53)627-4367 \;/ ' APPROVFD BY THE CURRINT PUWNING PFlOJECT MANACER PfiIOR TO 9UILqNC P621Nf MPHOVAL. C3.02 9TE NI�SUF3AqNG PIAN DEfAILS CONfACT:JUSRI CAROCH � �'`� 4. THE PPPLIGM SHALL BE REOUIRm TO Sl1BNIT REVISED ELEVAPONS WFdCH INfYUDE ME REFUSE WID RECYCIIHLE C3.03 ghµD SURFAqHG PLW DEfNLS E]WIL JGaochObcraenqineenng.com � ' �-��i, • �M { �� i I - : ENCLOSURE MADE OF NASONRY,ORNANENTAL NEfAL OR Nq00,OR SOME COMBINATION OF THE THREE PNO A ROOF.IF C4.01 GPoIDING AND DWVWd�E PUN SURVEYOR � '`� �� THE PROPOSED GREASE NiERCEPfOR VN BE SEEN PBO'vE GRADE SCREQMNG ElEVAT10N5 WOULD FNVE REOURED TO BE C�.02 STORY PROFILES �� ' ' � �j � � PRQv10m TO SC�iEEN 7HE CFEASE MIIERCEPTOR.7HE REVSED ELEWTIONS SFVLL BE SUBMITfED TO AND MPIiOrID 9Y UMNTREE LAMD SUKVEYMG,INC. _j� 1 _ -_ " ` ; THE CURRENT PLANNING PR0.IECT MFNACER PtdOR TO BUILpNC PEfal�i APPROVIL. C4.03 STORM PINI NOIES AND DEfAILS �232p 11TH PIPCE S.E - - - . . . • ... . C�.01 STORM PIAN OETAlS AUBURN,MA 99092 --�-.. _ - --_ __--_ -_- _- - -.� . . > --,.., - t_-r---- 5. THE APPLIGNT SH/LL RENSE THE SITE PUN TO OEPICT A GFFERENIIATION IN W7FRY45 FOR ALL PEDESTRYN C�OS STORM PIAN OEfNLS PF10rE:(253�653-6423 --_.-.-- --. :----.-.-. . -�--: - ---_. _;"�: � � �'��. CONNECTIONS�IRHRI THE PMKWG MElS AND/OFt�RM1E tW1ES ON SIiE..THE REMSm SITE PIAN SFIALL BE SUBMRED C5.01 UT�IJII'PLAn WN�ACT:TREWR LWKIREE .__ -= _ -----_ -_- . .o �------- TO Ml�APPROVED 6f THE CURRETIT RIN�IINC PHOJECT tMNhGFft PftIOR TO BULqNG PERIIR PPPROVN.. C5.02 UiIL.fIY PI.PN NQiES MD OEfNLS �� - _-... fOUND COPPER PIN IH CORC _��... �.� � �.. _._- _._ T � _ I ___ cs.a� unun anr oera�s ARCHITECT o.75'oow�+in cwsE a ircr�secnan , j 6. THE PPR;IGNT SHPLI SUBIIT REYSED EIFUTI0N5 FOR 1}IE RETIIL SiRUCNRE OEPICTING ADOED MCHIIECfUFAL � I pETNLING ELD/p�TS INCLUpNG�DDITIONFL QAZING.CONTRASfMIG WTFILALS.OR SPECUL OETNl1NC NANG THE WESiQtN LI.01 IAlIDSCAPE AND TAEE fklENT10N PLMI gCRti INC _ __ OF UNION AVFMIE NE MIO IE 4TH SIREEf _.. BULDING FPG40E.THE RElISm ElEVAT10N5 SH�LL BE SUBIITiED TO N!U APPM)VED BY THE CU3�NT PLANNINC �� SCHEIlA71C IRRIG�TION PlWI 2106 PACIFlC AVENUE,SUIfE 300 CIfY OF RENfdI Ffit ANEYigC�HfR6E RpMI 150J. . _.______ _ PkD.IECT IIPNOGER PPIOR N BUIIDING PERYIT MPROVN.. TPCONA.M'A 98402 (HQD FOR FiOPoZONfAI MIO VFHfN',AL) _. . -- __-- (253)627-4JW (JULY 2013) V.E.4THSTREET ---t-. . 7. TNE MPIJCMlT SHALL SU911T A WTERWS BOARD SUBJECT TO 7HE MPROWiL OF THE IXl(iliQlT PUNNING PROJECT CpNT/[,7:yN ffRG1UN �^�R� _ o MM1K'A2 PPoOR TO BUILpNG PERNR FPPFiWP1. ► ' ^� .- - + E1Y�t:NBagrtwnObcrodeaigi.00m . _ _ - -- N 9. 7HE IPPLICANi SNALL BE REOUIRm TO PRONDE A LKNIINC PIAN iHAT ADEOUATELY PROVDES FOR PUfl1C S4tlY ` •,.-...,..,� - - � �--- � _-- _- _SfA: 12+08.47 ^ __ -- __.. ._.._ _ _ __ WRHOUT CASfING D(C651VE IXARE ON AD.MCENT PROPERII6 AT 1HE I1ME OF BUIDNG PERIIR F�NE1Y.hE t1GHiING . ._ ...--- _ .. RAN SHNL BE SUBMIfTED TO AND APPRO�ED BY THE CUPI€Nf PUNNHIG PNOJECT NHIIGEA PPoOR TO BUADNC PEHNR � -- -" APPROWV 9. 7HE MPUGWT SFMLL BE REOURm T(1 PRON�E A SCREENNG PIAN FOR NECWWIGY EOUPtlENi FOq BOTH PROJECT MAP AND HORIZONTAL CONTROL SfRUCNRES.IHE SCREENINC PLW SIULL BE A19Yffm TO NID IPPfiDVED 6Y THE CURnENT PUWNING PR0.IECT ABBREVIATIONS: Founo a'suRF�ce ewss asK NON�GER GRIOR TO BULDMIG PERYR�PPRWAL IN'fERSECTIDN OF 4TH STREET AND ICP ASPHALT OONCRETE PAVFIIENT E EAST WUf MAI(INUN S SWTH UTILITY CONTACTS 14ETH AVENUE NE 10. THE APPLM�WT 4iALL BE REOUIRm TO AIBIIT A OEfNLEO WIDSGPE PUN OEYONSfRATINC CONPLLWCE WIfFi 7HE +��X APPRO%INAIELY EA EACF1 1U0 MAI(IMUN Di1Y OENSIIY SD SfOfAI DWJN CITY OF HEIlrON CONTROL PqNi 1852 ARCFI PHCFIITECTURFL EC IXTRUDm CURB 1EP MECFUNIGL,FIFCTRIGL,PLUNBkIG SF SIXLlf2E FEEf HEI� FOR NADBS TREE RETENTION REOUNEI/ENTS OF fa/C 4-4-130.THE DETiLL£D l/!lDSCaPE PLW SFiU1 BE SUBW7'TED TO NID ASpH ASpHALT EL FIEVATIDN NFi MFIiF10lE SPECS SPECIFlCATIONS NATURAL GAS DOMESTIC WATER /91 ROTATION APPROVED BY 7FiE CURRENT PUNNING PRO,IECT YANMER PRIOR TO COHSIRUCfION PERMIT IPPROVAL ilSSY ASSDIBLY EP FDGE OF P�VEYENT MN WNMUM S0 Y� SIXLWE Y�RO PUCEf SOIINU ENEACY CIIY OF REMON AVE AVENUE ESC QtO510N h SEpYENT CONiROL IySC MSCELlN1E0U5 EXIST Df6TING 40N NONUMENT SS SWR�RY SEWQi 355 110TH AVFNUE NE RENTON Cf1Y fiAL1 11. THE PPPLMJNIT SHALL HEV6E THE SfIE R1N TO COMPLY WIIFi THE&CYCIE f�0U�7ENENTS OURINEO IN RMC g�p� BUILDYIG SSCO SNIR�RY SE'NEFi CLFAN OUT BFll.EWE,WA 99W4 1055 S.CfGDY WAY h4-080F.1I.THE REVISED SIfE PIAN SHNl ff SUBIff1ID TO AND PPPfdOVID 9Y THE CU(�EM PIANNINC PR0.IECT g�w BOULEVARD fD FOOTING D2W N NORiH SSNH SWR�R1'SENiER YWIHOIE (25J)476-6420 RENTON.9'A 98057 WNhGER PPoOR R1 BURDING PERIMi MPRWAL. FF� FlWSH FLDOR FLEYATI(ql NC NO ClIRB ST SIREET 1L CENTERLME F/L FLON IBIE NfS N0T 70 SGIE SU SWION (425)430-7332 Cj'�'}'OF REN'1'01 �'. uf GTCH 9lSN FH FN€HYDRMIf SN SfAMLIFtD 12. THE MPIJGM SFWl SUBMT A 9(�J PFFHR DFPICIINC SREfY 4GtNGE(PEDESfRUNS CR059NC,STOP SIGN,EfC.)AT �P CENFNT CONCRETE PAVFlF1iT FO F1ffA OPfIC O.C. ON CENfFR SIYPP SfORY WAIER POLLUIION I INTEHSEC110NS�INEEN PEOESfRLW PATFflMYS NO 1HE IXiIYE MtU IINE THE 9(7i PEPYR 9M11 BE SU9JffTEO TO CC CURB MIO GUTfER Ff f00T OFF OFFSET �Nna+ POWER STORM DRAINAGE MID PPPRO�ED B(THE CURflENT PUNNMIG PRQIECT WlNCQ2 PRIOR i0 IEYPORARY OCCUPMI(.'Y PETaNT. q GST IRON C fA5 .4pprovCd by: D3LC: I CL ClASS CRYL CMVEL PED P SIFaAN T TELEPFpNE PUGEf SOUND ENERGY CIIY OF RENTON � CNP COPRUGATED NEfP1 PIPE 4Y fAS Vf1VE PC P�S7WN�!CURB TC TOP OF WRB 355 1107H AVENUE NE RENTON ptt WYL iraai 13. THE APRJCAN�SHALL SUBINT A REVISED SIfE PUW RELOCATING AND/OR RESIZINC TNE PFtOPOSED RETAIL SIRUCTURE IN CO CLFAN OUT PE POLY EfHYLENE TESC TEMPORM7f EROSION h BELLEWE,WA 9800� 1055 S.CRPDY W�Y ORDER TO PR�0IADE THE NECESSARI'FASFLENT AND SEfHC(X PER THE 20W NING COUNTY SURFACE 1YATER ORNNhGE COMP COWACIED H HEIGHT PL PROPFXfY L1NE SEDIMENT CONIROL CONC CONCREfE HORIZ HORROHf�1 PP POMER POLE TP TOP OF PAYEwENf (25J)47fi-6420 RFMON,WA 98057 ,qP�rovcd by: Da[c: NANUAL(KCSIMDM)AND CIIY OF F£NTON,WENONENfS.ALTQdNTIVELY,7HE 36-INCH q PIPE CL52 WITH COA7ING CPEP COPRUG4ED POLYEfHYLENE PPE HAl4 HOT NI%�ISPFMLT PFiOP PROPOSED TPoWS TRANSITION (�25)�30-73J2 TREATNENT(MJl TfUT WODUI PLACF_THE P�E CENTERm IN TVf 10-FOOT EASENENf.R CfOTECHNIC1d REPORf OF 1}iE CR CROWN PSE PUGEf SIX1ND ENERCY TYP TYPICAL � ' �. PROPOSED BUILDING FOOIING AODIilONA1 LOADINC ON PPE)TO BE PL10E�OUTSIDE OF THE 10-F00T FASFIJEM WOUID �C CRUSHm SURFAqNC TOP COURSE IC MECRAL CURB Pf POM OF TFNGENT .� �. ( cv cue�c r�t ie m�rzr o.twna+ PVC POLY VIN1L CHLAPIDE uc uriotx aroua SANITARY SEWER DEMOUTION PERMIT TH N R OI�Rm iH BU nN.F00 .IYW n N F TO P�0 OL�DE OF THIS 10-F00T EiSp,�QR.p$A CY CUBIC YMD IN NCH PNIT PAYEIENT W UR17Y POIE ��. .4��ovcdby: DefC: I�� THIf�OPiION THE M1PoI�VM WOULD BE REOURm TO PROv1DE A AEEVE FOR THE 36-INCH LCPE CARPoER PIPE.7F1E � ��T� qTY OF PENTON PUCEf SWND CLF/N NR AGENCY �� ' . 9FEVE(SiEEL)WOULD NEED TO BE PLACm 20-FFEf NORTH MID SOUiH OF BUIIDING 2'S FACADES.NO CEOTEp7NGL p W�CfILf IRON l LENGfH � R�WF�LFAOEA VC VERIIGIL CURB RFNTON CfiY WHL 1904 MRO AYENUE-SUIIE 105 �I I � 4EP017r WqUID BE REOUIRED FOR TWS OPiION.THE DOSIING SfOfAI 4NN(UNOER THE PROPOSED BUItDING)4USi KSO ON pAl1E1EA LF I.�EAR FEEf RM RK,lff-OF-WAY W �ST 1055 S.CW�DY WAY SEATTLE,IW1 98101 ��. � 3E REOUIPm TO BE f�YOVm.1HE FEVISEO SffE PLAN 4W1 BE SUBMITTfD N N1�MPfiOVID 6Y�NE IX1Rf�NT � ��WT L7 LEFT RCP R�NfOfiCEp CONCREfE RPE W/ N41Fi RENTpI,WA 99057 (pp5)5gg-�OSg � Rf RI(M �rv wATER VKVE ' 4PPro��ed bv� Da[e� �WlING RPN REVIEWER PRIOF TO OONSTRUCTION PERMT MPROVAL.(UN�EfiJNED POHIION OF TE7(f INDICATES TFIE (�25)430-7532 � PLTEFtNAT1YE CHOSEY FOR rHE PRQIEC'SREJ. `�-�--�--�---�-�-----� � ' B C RA � =N\�C4�'�,OA � �As Na�o ""�'�"' A CI TY OF TACO TIME RENTON HIGHLANDS ��9.2015 � �� t� � ' `� f�'' "" -� RENTON � �'� � �� I I DATUM r.,�,..m,r.below. J°ERMIT�U14J05665 I' ��3eara3s'res�ae��ss«�xn3cw�su^v.�on� o��'�. � ��" j,� � Plonning/Buildirg/Public Works oevt. COVERSHEETAND �C�.Q� � Call�,,,r,.ey �_s�>�Fi-�._��_s�i e�r.��,,�;;,+3s�cz �:"�,_rEr�j�°c.? N0. REWSION BY DA7E APPR �""�" HORIZONTAL CONTROL '� � ��6 � IB1 � 00S6 � 4 .�-- �, MATCF&JNE SEtRIGH ,s „%' ?, ` ,s : ,, �. LEGEND , _-a� �./ a�� # � 1z ✓ � — - - — Paara+n/eounou+r ur+e , M � " � � � � 22 � 6 �� __ =�s--�!` o �� . - _ .S1 � _�_�-_- :_ . . � � �a�.��s�s��ass�= ,. � ,.. _ �- �� / �'�� . 110N 25 2 2 9 � ❑ GTCH B0.9F�PROTEC �� --�-------=-s---=- � � --- -------- ----- ---------_---- -- --_,�:_��i ca+srnucnoH er+rna� ----- - - - � �:-- ---- - - - - - - - - - - - - - --- ----- _ -- - � � ----- .. ._....B � ` \ ; � � RE110VE E]�SIING CEIIENT CONCREfE PAVEMEN7 � 18 :, fi 8 � - `i 1 I _ -%-%-X-X-X-%- RD104E E]OSIING CURB � '� SOIL EROSION SCOPE NOTE: � � � _�—�—�—�—�— R�ov�oasn�c unurr I 10 '..�. � _ 1HE EROSION CONTFtOL NE0.SlfiES SHOWN ON THE PL/�!!5 PAE iHE�BSDLUTE `i � Z4 ( � CAP/PLUG � MININUY NflSURES NEC6S�RY FOR THIS PROJECT.WEATHER CONqT10N5 PND ` ' . � I hlE CONIRACTOR'S NEANS ANO MEfH005 N1LL NECESSAFELY DIC?ATE \ � �� 0 MUOD SiR�N�MU�CH 4+ (f� . 'f 1DDIT10N1L EROSION CONfFiOL MEASURES BEYONO THOSE ON TFE R.ANS.IT IS � � 1 � Q .� .. �. _. .. .� THE CON7W�CTOF2'S f�SPONSiBNJTY TO NEET ALL FEDERPL,STATE.PN�LOCAL `;. 3 � 1 � � .. Z I. � flEq1LAiKN15 REUTED TO CONSiRlKT10N STORYWATER DISCFWtGES. � Y � 10 SHEET NOTES: � Q .� �1 19 1 � J �- � I OI ST�BIUZm CONSfRUCTION EXTRANCE 2�p 14 PRESERVE kID PROTECT IXISfING � 1 � M X X-7L7r�t�t7C7[��,_, - y�\(_x PER DEfNL FPANCWSE UTWTIES. _ �,� I � � . , � �. � i a -� ' _� . � �t ,y�fc � 5 � � OOETNLB0.5M1 IN.Ef PROTECTION PER 20 15 �SE D�PROTECT EKISfING LNM 2 is � � \ � + � % �+. 1 I � ( i I6 x 1�� Z �.� 8 � �j }'* � ,ic ' � f � I O3 RF11VJE IXISIING SPEN(ER. 16 REMOVE IXISTING UGHT POLE M!D O � � � 1 x tl . � &ISE,REiER TO ELECIPoCAL P1M15 ;f . �' " ` x ++ x K _�. . -� I ..X_� - _ ___. . . O4 PHOPOSE�BUILDINC F007PPo11i S110M'N FOR SIIE LN,li11NC. Z �-�, � . l " � #i i� � }C _,�c'x' �� ..� `. OR REF'6iENCE ONIY. EM04E IXISTINC SIGN I SE i iK -�`�. F 17 R �. x i ... x � ' W ,i' Y � ia i � - I � _ � . . :: ..- \ . � _ ' .X 7C=7F=JC=x�C—J�9' � OS RDIQvE EX6'IING GREASE IHf�iOR. W �_ I � . � �, ... ` -_ % .��—/—�—f--f � I 1B RENOVE IXISIING BOLL/RD. ..� .. . � x 17 �\ i I O�ESQiJE AND PROTECT E7USTINC O I . ..i.. .x . �y --- , ,,' . . .X CURB. 19 RELp�E IXISIING TR191 QI0.05URE � 9... Z �� . '.: . ' ,... 4,.'....` ....... ....` % % ..-., .% �/ � X ' 7 �SEF�fE AND PROTECT DOSiINC 20 COORptU1E NIIFI PSGAS HEfER. � I � . " . . _ . . . I O O � �. . ...`_. :.�.�.�. �a-,:kP NS_ 33-2�.>�=�� i �'� �1 ,p , �,5- 20 � ; � x 1 I V ` �. . .y��c. . . 1 �S x yS : ,� .. I x I O�u��IXISfINC PAVEYEM'M1HIN 21 RD/O'/E CUPAO RNL Q � , " , � x �� . , �..:- , ��n�� .�N� � - A __- ._x �t L1MIT5 OF OISTURBANCE. �- .. 1 I . . � . . .,... \ x I1 ig k �-q . , i i K - I �� — O GP/PLIIG. � � . .� r .. S. � x x ' .. - .. � � _ - ... j� i OPFtESEf+ME IND PROTECT ElOSI1NG O � � l.c � '� �F r < � � � �.'� -X — - - ' . � � �x i CA7CH B,44N. 23 RELOVE EXISIING WHEEL STOP. � i 1 ,.' I Y.� � �...�. � �.`:� x . --. :.� �� . `i 1 23 'ic I 10 PRESERJE AND PROTECT E70SfING 24 SILT FENCE WILL BE PROVIDED ON ALL Q � � . `.�� : ....... . �I 4.�.� � �. ic X IAIPRO�fMENT5N11011TI0N NOIE qFlGTN1HS \ i % STORM 11NE. DOWN SLOPES PER OEfAII. _ x � -- �. �� I � ..._� �- ... -�. �. ` ��.�. �... X '% .x ;,.�..'•�- : 8 ._. _� � . .% fi � 11 PRESETE ANO PPOTECT DOSTING FlRE 25 CONTWIGTOR STOCKPIE/UYDOWN .._... ..' . . � . ' . _. . .. ,. ' ; '.. ._ ' --- HYDFA!(L MEA/�DJUST lOGT10N AS NEC6S�RY ' 11 I � ��.�r::�. ' .....:. \._ � x .-� . .. .. .. ....... . . .�..: - . i . . . x I . TO ACCOMNODATE FN�1L PAVMIG. 4 10 .-�.� . .....::::_. �.. :.,::::::. '_ ._ r I- . .� . ' 1 ' 12 PRESE77�'E AND PROTECT EbSfINC �I � . r �. � SE7'E _ 1 SANITPKY SEWER WVIHOLE. 26 RELOCATE OR RECREATE CONfROI � RISER WIfH ORIFlCE(S).SEE GRADING � x k � � � � ' � ` '� x x x � » �s�uro Peohcr oamnc u�o orwru,c�a,w. ,- i � � x Pow�crarEr. � �j I K x � x I � " � `� , ix � � � � '- �, , � �� ; � '� 23 x DEMOLITION NOTES: a �� I ,� . . �'� .... .. .- 1 ..:7�J� 21 K . � x 1 I I. LINIfS OF qSR1R&NCE ARE SHOWN ON hE PIAN fIXi RffERENCE PURPOSES.WORK SHALL 4 �� ' �- K NOT BE CONDUCTFD OUTSIOE PROPERiY LNE UNl£SS OTHER�MSE NOTED. ERM i 1 , -' � �j` L 1� � : � / �-� 4 � x I 2. oeraH oo�aunari�aM�rnau ruc�r souNo c�nn aR ncEr�cr. I . .�, � i x I � � i� __ �` � i . � X-x' � � - � �� - 3. ALL E705TING ASPHALT TO ff DENOLISHED PAIACENT TO NEW ASPWiLT M!D 91ALL BE . _ I ... �r. �� . . � . \ . � x � _ ` - ., i .% � I COMPLElEO'MTH A SAW WT NFAT UNIFORY EDGE. � -'!. � � �. :� � x a i� i �x � TiF � i � \ .� � x x �� x 4. SfRp W.L EIIISIING VE(�TAl10N ANO TOPSpL WHERE GRA�MIG WORN IS TO OCCUR. .. ` ' ,,`,,�p . � T � � . � f ��/ '�` :: .; _� \ 'X x +X _�RB y i 23�.. �c � 5. RD10VE N.L SIRUCNRES.PAV61Q11S, UT1UT�5.M70 VECEfA710N NITHIN 7HE LIIMTS Of 4 T '-- � ' . ._ �• DISNRfl4NCE UNLE55 OTF#3iYA5E NOTED. �� T �• � � % x x _ �� i ic I 1 .. �. .. � x' � K X �X _ �. '� x � � I 6. SFE PNGE C2.02 FOR Citt OF REMON EFOSION CANTROI NOTES. � �� -� i ..� x �i - \\ }\ � x 7. WOOD SfRPNO MULCH SHPLL BE PI.ACm TO 2'M DEPfH MD SHALL ff PIACm NATFIMI � . .,. � � \ � x i� ix � "C i � 1 �. �- -j �.. \ i� x ~iX �� a �'^ -x THIRf!(30)DAYS OF CONPLEIION OF GRAqNC WORIC.WOOD SfFtAND NULCH SHALL BE PER 1� � ��, � � x i` �, � 'C x I wsoar 9-it.�(4). � . � ` �.� ... i.�.. � x t; � � � T� K . . -.k'� 8. 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GATCX BAbIN FILTEw III q� Y�RCH 2O08 ILIRCH 2O0B � L'��Cn 2(lGcl J.rf.�'-• .:rF i STABILIZED CONSTRUCTION ENTRANCE n SILT FENCE ^ CATCH BASIN INLET PROTECTION n ' „ � � � , $CJdf: HiS � SGLE: NiS � SCIyE: f(IS `� �I '- � CITY OF RENTON EROSION CONTROL NOTES: CITY OF RENTON WET SEASON REQUIREMENTS: II� 1. TMESE NOTES 9NLL PPPFi�R Fp(t ILL PRp.IECi$-SIIE IIPRO�/DENTS, 8. MIY MF15 OF IXPoSED XAIS,INCLUqNC RO�DMAY DIfl1NOrE.NIS,TIUT WILL Nl OF THE FOILOWINC PRONSIqIS FOR N�Ef SFASON CONSIHUCTpN ME OEfNLED IN THE •�•-' SURFICE INTFR UTILfIY.WiISfEWATER UTIUfY�WATER UTILIfY�NIO N0T�qSfURBm FOR TMCI OA15 WPoNG TFiE WEf SEASON(OCfOff(t 15T REFEf�NCm SECTIONS. THESE REOUIREMEHfS ARE LISiED HERE FOR THE CONVENENCE Of I �.,.� �� TIWISPORfATION Pl.WS: TNROUCH YAftCF1 70TH)OR SEVFN DAYS DURING THE ORY SFASON(MPol 15f THE DESMPER Nq THE RE4IEWEA. �. T'�.,� - - ,--i TOUGH SEPiENB6t.N7)SFWl�INMEDMTELY STIBUZED W11}i TME 11-� I-_ � 2. ffFORE MIY CANSfRUCT10N OR DEVELORIENT ACIIWiY OCCURS,A pppppyEp 6L COVER 4EfF1006(EG.,gIDINC,NULLHING,PL/STIC I. TF#ALLONED TIME TW1T A DISR1RBm RREA MAY RDUN UNWO(7KW WRNWT COVEP �� II. i�- i PRE-CONSIRUCTION NEEfNlG NUSf BE HELD YIIIFi THE pTY OF fffHTON, YEASURES IS REDUCED TO IM'0 CONSECUTI4E W0f�0NG OAYS,RATHER 1NM!SEVEN. _ �- � COVERINC,EfC.). ',.I--_,(: PUBLIC WO(tK5 OESIGN ENpNEQi. 2. STOCI�ILES AND STEEP CUf PND FlLL 40PE5 ME TO BE PR07ECTED IF U/WORKED FOR . """^""'�' '�'I-�. � 3. 7Ff BOUNDIftIES OF THE QFARING L1NRS MID MFAS OF VECEUTpN 9. WET SEASON SfASq41L EROSION AND SEDIAIEM CONIROL REqHRD1ENiS YOF�TWW 12 HOlRS. IPPIY TO ALL CONSiRUCT10N SffES CLFARINC BEIMEIII OCfOBER 1 AND ��. 1��- P1�SER/ATION 0.5 PRESCR6ED ON 7HE PLAN(5)SHN.L BE QE�RLY FlKxEO IIYiCFi 30 INCLl15NE.UNLESS OTF£HMSE APPRO4ED BY THE qTY THPOUCH 3. C01£R WIERWS(PIASfIC.WTiING.EfC.)SUFFICIINf TO COYER�LL DISNPffO ARFAS y � 9Y AIRYEY TAPE OR FENCNlG N 7HE FELD PRIOR TO CONSfRUCIION IN MI A0.1US1NENT PROCE55. SHNl�SfOQ�llm ON 9TE. ��+.' �' � K:OORDMICE WRFI APPENp%0 OF 7HE SURFPCE WATER DE9GN I/ANW�1 NO wp�� -,I, . - _ ��. 085ERvE0 DIALNC CONSfRUC'lION.IXRNG THE CONSiRUCTION PER100,NO �Q ��yQ�MEASl135 WILL BE PPRJm IN CONFORWNCE M17H IPPEN01%0 OF 4. ALL IAFAS TFIAT ARE TO ff UNM'OPo(ED pHiNC 7FE NET SEASON$FW.L BE S�m �v�. .. � . .. - . . .. ,. DISTURBANCE BEYONO THE QFJRNG 11MiS SW�LL BE PEFtIIfTTEO.7F£ THE SURFIiCE N'ATER DESICN WWUN.. WRFMN ONE WEEN OF THE BEqNNlIC OF THE YIEf SEASON.SEEOMIG SHOUID BE ��.. CLFARING t1NRS SHALL�NNNTNNm 9Y THE APPLK'Nf�/6C SUPERN90R �p�p�q��R yj j ��,, FOR THE WRATION OF CONSTRUCi10N. ��, µY AftFA NEEDINC ESC NFASZIRES,NOT REW1dNC IMNEpATE AiTENTqN, . .� SHFLL 8E ADORESSm INTHIN SEVEN(7)DAYS. 5. MULqi IS REOUIRm TO PROIECT Nl$�Dm IREAS. � ��. 4. STABIJZm COXSTRUCTION EMRANCES 41ALL BE INSfH1ED AT THE BEqNNMIG :� �. OF CONSTRl1CT10N�IID AWN7NNm FOR 1HE OURATION OF 7HE PR6JECT. 6. FlFIY LINEAR FFET OF SLT iENCE{AND 7HE NECESSPRY STAKES)PER ACFtE OF �DOITI01U1 FEASURES.SUCH AS CONSTRUCTED NHEIl WASH StSiDIS OR 12. THE ESC FNCIlRES ON INAC7NE SIIES SFil�LL BE INSPECTED ANO NNNTNNm DISiUR84rCE YUST ff SfOCI�ILED ON SITE. WASH PAOS,WY�REWIREO TO ENSURE TWIT ALL PAVED MFAS ME KEPf A I/INMIUY OF ONCE A IpNfN OR WITHIN 24 FIOUF25 FOLLOMMIG A$TDRY CLENr MO TPPC!(WT TO ROAO PoGHT OF WAY DOES NOT OCCUR FOR 7HE �T� 7. PROPET�Y INSiN1m 9LT FENpNG IS WNCNiORY ALONG THE DOM'NQOPE OF Nl WRATION OF THE PRQIECT. . qSfURBEp NtEAS OF TF$9fE PERIMEfER PROTECIION FlLTERS RUNOFF PNO f�DUC6 13. AT NO i1NE SHALL NO(iE 7F11N ONE(1)FOOT OF SEDWENT�N10NED TO TFIE ANWNT OF SEDINEIR THAT WY IEWE 7HE SfIE. -�":.:m�Eiw�+ro�ro�:�u'o��•ea.,�w�sw.. 5. NL REOUIRED SEDNIENTAIK)N/EROSION COfl1AOL FNpUTIES NUST BE ACCUMUUTE WRMN A GTCH 9ASR1.ALL GTCH BASNS AND CONVEYNICE �' - - � OONSTRUCTED WA IN OPQtA710N PRIOP TO UND CLENtMIG AND/OR lJNES SFULL BE CLEANm PRIOR Tp pANNG. 1}IE CLFANING OPE7LITION 9. SEpYENT NElE1RI0N IS REQUIRED UNLE55 NO OFFSIfE pSCHARGE i5 AN�ICIPATED FOR ,. w,�L.y s.��wo`*sei�isaarea.ww'"�',�.,mn�e.o.e.avwneo"asao..siaxw.n,ues�ro CONSTRUCTION TO PREVENT TfW15PORTA710N OF SEpMENT TO SURFOCE SHALL NOT FLUSH SEpNEM�AOEN NAIER IMO THE OONNSTREM1N MfEM. THE SPEqFlED OESIGN ROW. i ��„i,,,,�� WATER,OF+NNAGE STIEMS MIO tiDJACEM RtOPER116.P11 ER090N ANO 9. CONSfRUCiION ROAD ANO PIRqNG LOT SfABpJ7AT10N ME l�OUFED FOR ALL SITES �K�`TMo?'�o'�'E��v�w�+E� SEqNENT FApLfIlES$HNl BE NNNTNNm IN A SATISFACfORY CONpTION 14. WPoNG THE nHE PEPoOD OF OCTOBEfl 15T THROIK',H MPRCN JOTH.ALL �. : ��-�� UNlll SUCH 71ME THAT CLFMING ANO/OR(X7NSTRUCTION IS CONPLEfE AND UNtE55 7HE SIIE IS IMDERWN 8Y COARSE-GRNNm SOIL. ' '� avniaaoe��io��a`�ai6rnrawws ° PROJECf qSIFtIBUTFD SOIL ARE/S GRFATFR,TFiAT ARE TO BE LEFf wrrw.s�nno.e P07EHTNL FOR ON-SITE EROSION WS PA$$m. THE NPLENEMATION, UN-WORKED f�OR NOf�TWPI 12 HOURS,SHN1�COYERm BY NULCH, �'Ss,. '°"16tfl610�T�"P'"�"NppO'B1f6'r"�"� S/JDDING OR PI/SfIC COV6iING. 10. ANSACE IYATER COHIROLS ARE REWIREO UNLE55 NO OFFSIiE q5CFi0(iGE IS NII1pPATFD � v �oe°1"6TL.us.cl0 s�Ou�.�o°n1Orw.r�ns:wwau".oreemwein.aw.mwo�..� IWNiBUNCE.REPLACEIENT AN�ADDIIIONS TO EROSION/SEpMENTATION FOR 1Fff SPECIFED DESICN ROM. ��.. CONfROL S1SIEtl5 SIIALL BE 7F£R6PONSIBILfIY OF THE PQb111EE �'... .. 15. MIY PERNPfIENT RETENTION/OEfENilp1 FAC0.ITY USm AS A TFIIPOPMY 11. PFNpNC Alq YORE CONSERVA7NE BNP$YUSf�EVALWTED FOR CONSfRUCf10N �'��. ��.. 6. THE EROSION MIO SEp11ENTATION COHfROI Sl'SfENS DEPIC7ED ON THIS �fTLNG 64SN SLLLL BE MOpRm N1TH 7HE NEC65MY FROSION CONIROL ACTMIY NEPR SURFACE IYATERS. '�. ORAWING AF�IHIETIOED TO BE NIlpYUAI REOUR�EIlfS TO NEEf/NIICIPATED NFASURES ANO 91�LL PRONOE ADEIXIATE STORAGE GPACffY.F iHE �� $ITE COIpilONS. AS CONSTRUCTION PROCRESSES AND UNEII�ECTED OP PERMANENT FACILITY 5 TO FUNCiION ULTIIIAIELY AS AN INFllTRA710N SYS7EY, �Z. WJy ql�pFF ,CEryp7p7Fp gy DEYMTEPoNG SF4LLL BE TRFATED 7FIROlX;FI CONSfRUC110N OF E �:� SEASOH�L CONpilONS DICTAIE.THE PE(alllEE SHALL Mfi1qPA1E 7W1T NORE THE TEIPORNn'FAqUtt NUSf�ROUGH CRADED SO TW1T 7FE BOTfOM MID A SEqNEr(f TWiP NHEN THEAE IS SUFFICIEM SPICE OR BY f�LEASING THE MRFR TO A EFtOSION AND SEp14MAlI0N CONfHOL FAqLRIES WILL BE NECRS�RY TO 9�E5 ARE A7 IFASf THREE FEEf ABOVE THE FlNAL GRADE OF THE IYELL VEGETATFD,GENTLY SLOPNG MEA.9NCE PUMPS ARE USED FDR OEWATERNG,IT ��. Q6URE COMPLETE SILTATqN CONIROL ON THE PROPOSEO SITE. OURMIG THE ��aT F��n� IIAY 8E POS9BLE TO PUMP THE SEqMFNT-VDQI WATFR WELL AWAY FRON THE SURFACE ' '��. COURSE OF CONSfRUCT10N,R SWQL ff THE OBl1G4TpN►HD R6PON4BNJiT' WATER SO TFiAT YEGEfAT10N GN BE MORE ffFECTNEIY U11LIffD FOR TPFiITYENT.A OF TF1E PERYIff.E TO ADDF�SS ANY NEW CONOIIIONS TF1AT 141Y BE CREATED �5_ pFapp TO THE BEpNNMiG OF THE NET SFASON(OCf. 1).Nl pSR1FEBED �W�FlLTER SFULL BE PUCm AFtOUND TNE pSCWIRGE FRON iHE DEWA7QdNG BY THE ACTMTIES PND TO PRONDE I�OOIIl01U1 FApU11R,OYIIt INO�HOVE p{�p5 g{µ1 gE RE�7EMEp TO iDEIlf1FY N4iICH 4NES GN BE SEEDEO iN PUNP.IF THERE IS NOT SPACE FOR A SEOINENT TRAP OR 25 FFET OF SUTi�BLE YNNUN REOINREMEMS,AS 114Y�NEIDED,TO PROTECT F0.IACDIT pFZEpA(7p710N FOR TNE WNlfER HAINS.p$TURBEp pRFAS SHALL ff SEEDEO VEGEfAT10N,O7HER FlLTWRION YETH005 SHALL BE REOUIREO. PROPERTES WID WAIER OUNIfY OF THE RECEINNG DPNNPGE SISfEII. �I1HN ONE WEEN OF THE 9EGINH�NG OF THE NET SFASON.A SKETCH NFP •'� �i:n�.¢�orz�� nws7�c cwemro 9fo.ru�-a�sao OF TFiOSE AREAS TO BE SEE�m ANO 7}q5E AREAS TO RE444N UNCOVERm 13. TFiE FREOUQ�CY OF YNNTENANCE REVIEW I�ASES FROAI M'EE1QY TO DNLY NAiEAE nr-aW-�:�, � 7. �PPFiOVAL OF hIS PLW IS FOR EROSION/SEDNENTATION CONTHbL ONLY. R SHN.L BE SUBYfTTED TO THE qTY OF RENfON FOR REVEW. �m. �. vascx,n_e3 �OES NOT CONSIifUTE AN MPROYAL OF Sf01bl ORNNPGE�F9CN.SQE NOR . . . LOCA710N OF PPES.RESiRICfORS,CFUNNELS,OR RETENTION FAqL1TIE5. PLASTIC COVERING � s�: H�s 4 N 'nom � � � F !�A ��.'n'"��.� 04.29.2015 ��.° �AS NO7ED /1 CITY OF TACOTIME RENTON HIGHLANDS '` � B C RA � �� \ � � � � RENTON _ ' _ Qt� �, �. �� OATUM � �,�,y�M,, /.�, �� P�ann�n Bu��din P p DEMOLITION AND TESC UPERMIi�U14005665 T�•-�ezr��`=.sxsa�ass�v.wwecwvesia�_a.� ?''. j,� 9/ 9/ ublic Works De t. C2.Q2 au�...,.w. r,�EVA��F�=•�E��E_�,E�==.A�oµ„v<3�.0� �:"F�,STEF F�.? No. aensioN er on� nPPR PLAN NOTES AND DETAILS 'Q 3 'ie RIB14005664 �T��NE-�E-R��H- � LEGEND :•, f nE irrta ;;., IXSTNG CURB �� /�� _�� _ �� - � - PROPE(iiY/BOUN�Pf7Y LINE NATCH tlUSI1NG 12 � -� - SET94CK LNE P�VEMENi(TYP.) �� BUILqNG FOOTP(dNT `-y -_-- . ._-� . __- , . .� 0 ASRNLT PAYENENf -_ -_- _ �/ .f _ _- - - --___ ';'^_ _ �/ 0 CEMINf CONCPEIE P�VEIIENr -- -T�ti -- � .- .. -.�-�- CENENT CONCPEIE PAVEIIENf-F�AVY DM' CEMENT CONCREfE CURB - � � I � MATCF�INE-SEELEFf I. I tJGHT POIE SFiOWN fOR RffERENCE ONLY. I '♦ r��a s��uc�c Pi,w. 3 - ' 10 5 0 10 o Pf�CAST CONCRETE WHEELSTOP . . . I `� � = i 5GN �' (n I 14 5 6 P��NIX� I SGLE: 1'= 10 -•-�-•- FENCE � � I -`��- - �� AYPLE i N; w Q � I q a ttP. �� : a = � .I 19 5�. � nA �q �� c2a R7 � �` c?2 � I I . t4 �` I SITE AND SURFACING NOTES: = 14 � 14 � 1. REFEP 10 SHEET C3.02 FOR SIIE M�D SURFAqNG NOTES. 1 2 3 4 5 10.6' `�� I z � I � I SHEET NOTES: O I r ' � - , O � Q � 6 7 8 9 10 1 � ( 1 YERIICAL CUR9 PER DETML �� e 16 RIGHT NRN OP1Y SICN PIM:ED MI 2 6 CONJUNCIION WITFI STOP SICN. 0 w -� �-�� I ��. � ��i � � �+ 4+�c �G � v 15 �n� B � 12 O2 CEMENT CONCREfE WNX PER DEU�1 �� 17 T1E IMO DOSfING CURB. Q ' � �..� O . �C �� 5 O O 4 �3 H41F PA4ENEM PFR DET�A� 9 1B MATCH E%ISIING PAVEMEN�,17P. � � I I .. ' ° Q c .� a . " --- � � O4 CENENT CONCRETE PA�EMEM PER DEfNL I * 22 � o�'- �Q ' ,� ZS � 19 SiNRS.f�5E=Y RUN= 18' a ° OS TP15H ENCLOSURE RffERENCE MCH.Pl.WS ~ I I I , �(, 4 d" '19 20 COLULN.REFEAENCE Mq1 PUWS. . Q � 1 . 12 � � ��, _ � OCfHENT CONCREfE PA4E]AENT-HEAW�UTY E U � � I.. I( � 19 � 6�' a.3� 28 PER OEfNL � 21 DEIMIDSGPE PLWS.FQ�ICE.REFEf€NCE ,. a �. I - BU0.01NG SZEf64CK UNE '�. a OREFERQICE ONL' REFER N EL�ECTRN;AL RNI ODEfECfABLE WIRNING TRUNCATfD , 5' LWIDSCAPE �5 � . I I . � u I, '�� _ PLWIER FOR SfiE LIGHTMIG DOME PER DEfMI. a . APPRO%IMATE IOCATION � t3 9 Zp c I I � I4 a .. 17 � O A I ':� � I B MKING STALL- 4'WIOE WF1f1E SOUO LNIE z3 PEOESfR1AN GURB PER DEfAI I I ��0'WIDE STOf31 ��/� � ��C.�. I � O9 PASgpGER LOADINC ZONE-4'WIOE WHrt&� 24 hDA 4DEW/�LK FWP PFR UEfAL. Q I • 8312050539 IXC. 10. d 23 -� 21 I 25 CEYENT CONCPEfE VALLE! 4 � - I J� . 45'�WGOIUL SiiaPMIG AT 2FEEf O.C..TYP. 3.0 � I I I TO 9E RELOCATED. � � !4 � TYP. 24 � 24 .. 10' �a I 18'! ��SMBOLSK�ST�51(.1V MIO PNNfED Q 26 pROV1DE EXPIIiSION JpM F�TURE : I � �I I � 10 . _ ' 11 WFiEE1 S(OP PER OETPIL� REYOVAL OF IXJf�. � I . . �- i 15 yeZ 12 TFtENCH PAVENEM RESiORAT10N PER OETNL 6 27�LSON OUNWRS BINE PACN MOOEL � � � 9 " � � a TACO TIME BUIL[�ING 1z 0 3 � OW790-SF-G OR APPRONFD EWNNFNT. .. , I .. I I n I 13 SfOP SIGN PEA OETMI II 3�69 SQ. FT. i � I O � 28 IN-SfFtEEf PEOESiRIAN CROSSING SIGN e I� 21 14 TYPE 6 EXTRUDm CURB PEIi OEfAIL a� R1-fi PER DEfP1L. J.0 I� RELOCATED 15' SfORN � � 22 [L c � 5 �, E0.5EllENi PUBLIC e , - -t'E? - i �, 15 MITEGRkL CURB PFA OEfALe I � ' I I 10 � � LJNE TABLE LINE TABLE LINE TABLE I 16 c i I . a . "� 15 .I e i I '. I I�. a LINE N0. LENCfH BEARING LINE NO- LENG7H ffAPoNC LINE N0. LENGIH BEAPoNG 10 az I I i I � U 7.21 N6T}1'15.11� L17 18.00 SE7 3�'49.5}y L75 I&00 j 50'25'10.47� � 5 I . . � 24 . .. L2 J.18 NBY 3l'l9.53� L11 72.00 NO'25'10.47^N l26 54.OD '�.NBg 3l'{9.57'E 17 � � 21 - a p0 � � • ,. W '. 1.01 54S 25�10.47� L15 19.00 NBff 34�49.57'E l27 1&00 NP 25'10.47YI TYP.i 1 .''i I . � $II I ', II I , L! ,' 10.19 50'25'10.{YE L16 19.00 NO'25'10.R'N L7B 2.00 NB4 34'49.5J� I 25 � �I , . 12 L5 0.61 SP 25'10.47"E U7 1B.00 SV 25'10.47� l29 I5.50 50'25'25.fi9� 16 17 �'' 14 . ... . � � L6 10t.94 NBB 01�53.981Y L19 9.00 $BY}4'49.53^N Li0 72.1� SU 25'25.69'� `� � � N�A OF BLMlKET CONTNNING � � ��' � 10�POWE FASMENT REC. �'� � L7 94.27 50'22'25.101�l LI9 �.00 NO'25' I0.47"N Ut I8.06 NB�01'S3.981Y �8 , � I♦ o : ',. ° N0.8308 20C�.72 E%C.9 � . � � 26 f.G �G - 26 fc � 4 b _ _.Jy I lD 3�.67 NU 34'OS.JS'E L20 36.00 �9'34'10.23'N LS2 5.62 NQ 25'70.47b � \ , �\ ~- �_- � . _ .. H JC- -__. _- - l33 _ _ 27 ._ - �7 L9 YB.76 51'46'$.19�M LZl 19.96 '� SP 25'Q5.79� LS7 1&00 N89'3�'49.5]'E i ��. \�\ z• a I o. -rp - - �� L10 11.53 S6Y{6'29.46�E L22 2.92 5M'34'10.781Y l31 71.00 NP 25'10.4711 \ TYP. 7 � � • \ � . . �- _J �., L11 25.11 SEg 01'S,199T L23 11.D1 SP 2�'4&14'E LS 18.00 SE4 34�49.53W "�j NENU BONtO s s � � \ 1 4 � � er on��s � � �" �� N W L12 J95 Iq 25'10.4YM l24 3.64 NB4}4'49.57'E l36 19.00 NO'25'10.l71/ 1 �G �� 9Y OTHERS y � �Z CURVE TABLE CURVE TABLE c� �z , _ 6. 3 `I�' �. 0 22 � G� - !d . � TEYP.CONSIRUCfION �B ii:. 1 17 . , � � FASp/ENT A REC.N0. �."L31� POMQ2 EASYENT REC 25 p��6 EKC. 12 q„�, ^ _ _ CURVE N0. LENGTH PAqUS OFLTA TMlCENT CURVE NO.I LENG�H Po1DN5 OELTA TMIGINf � �..�\ . N0.BJ03220985 E7IC. � 1 6, , C1 385 10.00 22.06 1.95 C12 314 2.00 90.00 2.00 o IOAP.CONSfNUCiIqY �.K�� .�- 'r-.._ 25 4 EASEMENf B REG.N0. I � C2 795 .. 10.00 45.00 4.1♦ C1] 7.85 5.00 90.00 5.00 E%IST.UTILITY PaE Y , � . . 201204160W526 EXC. 12 _ ' - . - ---- __ ._ qi .._�- I - . I L3 lE5 'I 10.00 �5.00 {.I! C14 3.14 2.00 90.00 2.00 �; •� - _ . ...:I, , `�. . . _ . �"°• . - . TO RF1WN.hP. E, . O ' � (� - ��: ZZ -- _ . _i- , - - C4 6.99 2.25 1BD.OD INFq�IY C15 7225 20.00 92.39 2D.85 I� q � � � ' �0 2 I I 10'�E - - -- �g 47.96 70.00 9159 3085 C16 7.65 5.00 87.61 4.80 . - -- _. ^ }.--._. .. __�_ ___ _ �m - . . . - C6 16.12 1000 9139 �1D.17 C17 3.14 2.00 9000 200 EXiSIING 24'lYiIYfWAY-- -- -- -- - - - -- _ �� .F - �r -- - � � -- � C7 5.86 2000 16.80 I 2.95 C18 3.11 2.00 9U.00 2.00 UIILRY EASDIQJf REC. ___ ..-..__ ... CURB SHPLL�PUCm CLEPR�.. .�--�P ... . 24 o MONUNFNf SIGN�UNDERJ _-- - - - __- ..__ __ _ __ _. O NATqi EfOSTINC N0.20170123000120 - � . , .__ - � ,� . . _ ._ .1. CB 22.�5 31.00 P.83 11.65 CI9 7.85 5.00 90.00 5.00 OF iHE GRAIE OF THE IXISTING . 13 i 16 -- -- -_ . . _ ---- -- '�9 _ SEPMATE PQ2WT 24 CATCN BASIK i0 fglWlf� .-_'- _.-_-_ PAVEMENT(T1P.J ..• . ,.._ g �`�, . . - __ __ . . �.� �. 17 . . . . . , r � i C9 2},71 3100 ]9.TE 121t CLU 31� 2.00 9000 2.00 -- - � 2e -- - - - .. , �yr .. .__ ,.-. . _ .- - . .� . . - --- - - -. - _ __ _ . _.. _ . _ . . . . �R.� Q CIQ 8.06 5.00 9ZJ9 5.21 C21 3.14 2.00 90.00 2.00 _ - ,:.�. .. � . . . _. .-. . . _ . ____. --_ . . ..___ ..__ __ _ - .. �, . , ...,. .. _�- _ - _ _. _-�.. . . � . •.-�. C11 J.1{ 2.00 90.00 2.00 C12 7.85 � 5.00 90.00 5.00 ._ . . . . . __-__-1_ � � �`r�F"^SN�OA �� AS NOlED '"�"�'�"' /l CI TY OF TACO TIME RENTON HIGHLANDS oa.29.2ois R , BC RA � �,�� . � � �("� ��='2 ,._�P �' R EN TON ' I onruM 9� 9� SITE AND C3.O� u x.e.w�.r.belOW. UPERNITtU14005665 T�rsn<�rzsa.en<a�.��.M.wa�cwo=_scnrov z�` %�� j,� � Plannin Buildin PublicWorksDept. � �p�yr� zi�;=n�i=icavEH�E su�rE�cc rccwnu.aswrz �P.��'C~q{,A�'��24 NO. REVISION BY DATE APPR """0�" SURFACING PLAN � S r� � 4 �16 y RIB140056 4 SITE AND SURFACING NOTES: �� • r 18'z12'SN:N R7-8 I. CONTRACfOR TD REPNR/REPIACE/LL EJOST►M.FACILfilES TViU AHE DAWIGED DUPoNC CONSfRUC7qN TO PAE-CQ51RUCfION CONDITION. � r e _, - � .. TYRGIL AT P11 ��a uc �__' F. S7l dt RL li$�CdA1WY.7FD�F/1TN PM411EMIS 1fD➢5[I€WIYE��1 FiF lEE IFP9t 12�06�F 911�1110 i '_ __ —_ ACCESS�BLE�PARNIMC a�sam�a � , � ...._j PIfaCMlC SPACES 9�[�c'�1MT l$�4.�l at Rl YIfST�CQIPAC!@ H71ElM FDOMS.AABS.at Mll(�K6 A?$I�RI�PA/'iL4�Ul � �, � r . S lYff PA�flE1f C4T i ..^� �� c : � fa .¢ w P7-8P f0A1q6E OM tE�EII SIfEET 1�1 IE�I/E Fl4L PNEl 1ESIaM71011 PFR f1'f OF IEI�OI A�1�1@W1710h � 'R � ..- �, re'f ` rw�.-y .. 12�x16'PlAOUE � ��o ' TYRCK AT ALL �► i anoa� �EIENR e r � . ._j_1_ y�{ACCE54BlE CliWANI� T�� •aw. -Q��_ E��R� - PNaONG SPACES�' �Vµ � S�UAREIIff PQt �w�r.rn Y . .. .. . _ � . . . _ _�� Slpl YpM1�G � _�--a � i MD&14 OE�I �� aerrm�s _ �� JJJ Y t' 2.5'�} 1' Y ^�Rwi RffER TO�Y �IL1IN�ANN I WNIMIN� $ '�I �NOUNTIN6 MO : I w � ACCESSIBLE PARKING SIGN � �� ` , r �� .,,,,�,,,., � Q N . , � �. � ��. _' � � __ r �_ 1. SEE SIIE PlANS FOR AGGE59BLE PMKING . II�: I� �� r q1iY�BaINO• W Q �«�1T1�15. i�� ' 1 � \� ^ Y ( �OIE J 2. LOGTE SIGN AT END OF SULL AT CENIER UE, ¢ 2.5'�YONO FICE OF CURB � ; � ^ . r�,a R�\ 'a 6 nrrswrEroeEou.ocwnr,wna�u.s a = 3. THE NN.HEIGHT OF THE BOTTOY 0�7HE � � f �' -•� t � r� f YR , mov.caa�sn.ortrnnm.orrEcuEa � F�� C��} � i c..... ro rrr saaian. IOWEST SN;N SHALL BE 60�- - .�� 2"CLASS'8' �\� FACE OF CURB OR I I h !. !. • _ � ' i;�' , y �.� EDGE OF PAVENENT I �--� , � d �.- � � Z SIN�POST `� — T''.�2 � "'"" � \ < � i •�•�••"�`n ' - �auom a�+e sr«u eE am rsoar so.�c �- ADA PARKING STALL SIGN � �;,��_ � � ...E. e-a_ Z � , � � �•��o s. wamR sEcnor�swu onEto e-eEroro a�ac oc W �: � �� ___ ' s. w�ocmuom cuae�eurs wws�we�s �oF srnu� \ a cawoE r o�we orara�t�Pa+r �� > ,s ��s! � � CENlER UNE OR 0• �' �jJ PNNfE�SOWYtE: i •2' �n 6' CUSS'E' LANE ItNE �f�FDI J0911S. 10'ON COiIER.N�ft�OF ORAN �, �m +w��% ,. !� d �BWE TRAFFIC I OR CLASS'B' __ — s _ ' _. .. r — ' 9MLL�1'�BOJE TOP Of PAVEiENf. j . �1 ��IQg � PNNf � �, :�Q s x� _;+t_. . s x+�r E. f76Hm CRIOE AT�DSf1WE/CIF�MIIERFACE �� tl�€ i-. I SFMLL BE 1'�LOr TOP OF CIIRB. O ' [ �� I � , { � . I 1.RffER TO SIIE RIN FOR rGCE55Bl£ � � � - ��ji� Q �4�� I PIRI�NC STNL LOCATpNS. � '� , .. f � F�EE€ ..�� 2.SYNBOL SF1hLL CANFOPoI 70 WAC 51-30� 6.5' MIN.--! .^ __. . a .��- - Ss.!@ � Y � � RND INfERf4lT10N�L BUILDING COOE(BC) 2' DEP7H OF b � _.___. � � CHAPTER 11. GRIND OR SAWCUT ANO RENOVE -�- . � c _.__ E)[T1!{IOm CIIIIS �. fq �'0. � }� f�R YF . � �I� � . 6.5'MIN.� '� � b r . '� e tTA1�DARO rLA11�70.�00 � ��PNNTED SY160L: �� ' �' WHffE 7FUF}1C PNNT. � Mora�wr�n � •'w� .._�swrnF�:a�iiw�rwnw... .. I 1 n � YN.d'YIIDE SfPoPE t � Y 2 5'�y �' 7.` � . __ �'. �trrL S1etl� M-?307 - IN;MW�MIN IMINIMIN� fl7[� -�-^ - -°"`-� � EDGE OF SfALL � � � � :, I�rmra[m '��••�w� r•• ••.••� ': / . . _ . _. ..______�_ ADA STALL PAINTED SYMBOL � // TYPE 6 EXTRUDED CURB �, z-a�ss•e'—' � �cr ansr �� souF: rns souF: Nrs HOT MX 4'(iFBIR 0 2�'O.C. 1/2'PRflptDm JOWi Fltlflt ASPHKT(HW). 6�CRUSMED St�2FApNG TOP CWRSE WEIDED N�RE yE$H N2 -6X6 OR MPROYED BpTH pN2ECTX7�6 2�CLR. R �IZ� THR(N16FI fU1 DEP1H OF �. CON(YtETE PAVEMQlf �� 5�5�� CRUSHED ROCK, FLOWABLE FILL� �� , � . - � _ - � OR AS REOUIRED BY ENpNEER o � �� \ \ \ \ \ � BASE WURSE. TYPtc.LL iMNSVLR.Si P�tcx ��9 d PA�VfHf�R� ��z d p��E o� ° �a (Fl7(�$IR�fl�f� i\ \�\///i�$(1BG(L10E, � � /��/�/ / •FOR WNIYUM STANDARDS, SEE DWG�HR-05, ppR v`ennir P�v�fflrt �oa�a CRU9Ep$URFApNC ��o CRUSHm$URFACINC �$�: SP PAGE H032 �� ,� ISOLATION JOINT i. o�s u�oouPticrm TM�acrias. .00�m %i�'i��i;�i�!�;�� i�!:��l��i��\� wecR,� HMA PAVEMENT 3 ',��i �yn� ' STANDARD DUTY SECTION DUMPSTER SLAB SECTION B SCILE: NTS °"' °` CENENT CO `;�?E � �p� g, ;a 1/4''MDE SANED I/4"YADE SAWED M4IES� TF()(COAT YN1EY WT7ER u+n ..uvt -.os_-� __ ce�;E.�. _ CONS7RUC7pN JOM CONSTRUCTION JOMlT I. DEPTHS ME CONPAC7ED TIiICNNESS. PAVEHENi SEC710N 12� 'Z� �� TRENCH PAVEMENT RESTORATION DETAIL o a o z. �s�w�o�owrs sw�u e�sFxm PER PUN �, SECTION �, - . SGLE: Ni5 V � d � � �. . , PER WNUFAC7URER'S OEfANS CONTRACTION JOINT (Fl�sr auc� (sEca+o aucorvrt) i P CONSTRUCTION JOINT - PRECASf CON(]�TE R �a� CEMENT CONCRETE PAVEMENT � ��/,1�� %\�A/� �I qANETER PEA TOP OF REINFOflGNG � SGLE: NTS j � -,�;�,� I I M4NUFACIURER'S �R FLUSH WIiH TOP � N4IF�� 1� 1. DEPTHS ARE COYPAC7E0 7HICNNE55. I DETAILS �� 1/8'TO 1/4' VALLEY GUTTER �� a+cinc�+ c�warr ca+ce� �� /B'm i/z'R Z cxaas�ia+°,Nro'�sHiu��rAii-o�Fa�"a° ' � � NNIUFACNREFYS � � PAVEI�IENT - - e SIDEIMPII(S �. SGIE: NTS ~ �TN� do � - 3. NA%IMUM CROSS SLOPE OF 9DEWNX SHALL BE 2.WE. COMRACiION ADJACENT PAVEIENf p��,��T CRUSHFD AIRFACWG RffER TO CRADING RAN FOR OEfNLED CPApNG. 'a 'i°iNr�a°�r'LL es' �� s• � �� CONTRACTION JOINT e CE4EM CONQ€fE 5.5' ro' � �/�/�/�\/�/�i��/i.�\l\�/ SUBGRIDE M/ll(PER OEfAI 'MV i�.\�\�\!\�\ �/C?� I \,�\��\,J. 3/8�PPEYOLDEO JqM F7.LER TFROUCH FIA1 OEPfH OF . .Q,� �� i 3/8'PRE4IXDED JOMT FlLI.ER � 7/8'TO 1/2'R ��E PAYEAIElR ~ � THPOUGH FULL OEFf}1 OF q� � 3/9'TO 1/2•R CONCREfE PAYEMQf� a e \\��/j� NNIUFPCTIIRE%: /4 REINFORpNC fl�W � � (Fl1(ED SfRUCfURE) � cr�En cnsr mNCR�Paaoucis,uc. (um.�we��o ie' a o c�m�PREcnsr,i�c. �Ma� a� ISOLATION JOINT 8' 6.5' 1' F10LROYD CONPMlf,INC. ��q�� EXPANSION JOINT INTEGRAL CURB ^ WHEEL STOP n CEMENT CONCRETE WALK n � � � , ,,, , SG1E: H75 � SGLE: NTS � SGIE: Hi5 I U � � ��F�''�COo �� AS NOTED "'"'�"' 11 CI TY OF TACO TIME RENTON HIGHLANDS o+.zs.2ois BCRA � y �� P � ^ �� '�2 °��P -� R E N TO N � I ' onruM 9� 9� P SITE AND SURFACING C3.OZ � K�.•.�.c'+below• UPERNIi�U'4W5665 -zsa.cz�•as��z�a.az�<�y5�m.xe�w�nrs�nccH �� j�`�' j,� � Plannin Buildin Public Works De t. Gallr.,.�ry. z��s=a�i=�c�vEn�EsurtE3cc-�cowaw�=xus P�,sfC15?EA�'ti�? N0. REVISION 6Y DATE APPR PLANDETAILS � 5 �16 RIB14005664 /� w�s i � 1, JLL 3RS 91KL C�IY�iP US.OEPARIdENT OF 7RANSPORfATION.FEDERAL s�oca�--. �w��r�ox —rx�asaw -�-ntfsaw �-s.rEasaw POG��NQ�S `� � O�S MR AS�ELFED.YdrfT SIGNS TOF POSf I�N CORQ4ICE OEVIC6'.LOC�I vwbt '� \ s__sr`_ ��:�_.�; 1.CEI�(f COClE�E CUBS SIWI E r,�, W1111lAC11ilER"S i61RUC110tG r +rma r � . w�sno�rmr.. PB!'!�f SD.SPEG B-Ot- � �WI111�N9dE Z C�LY�ID SLNW�E 1I� �onmMcn�- s�a +r ="e_ r� w�oroaa 89A6E"OYft�SNALL�runi ID�EN�r ruo��o�arn_�ra . ' .. ra:. �wua�po�orwr _-"'R' r��a�o�wr . r��a�owMwr P1�41DR Y3.91di A/D EYIDO Y PO5f':UI�SS-2"a2S3%"6'1�ga avE .�T •. .. j . -snF �• • ,-� . . s� �R_ . 1oE EYOD BAOC OF p1B. POST 1'1H Sllk1 IC-?AS7M A101 I GWOE 50. ..� 11E IiQ 1E.G11��F ilf j-- � ' �Tld1�11E 1�57` +ra �`. � . � ' � i- ._�R.-�"�`r l:�- -g� �o�oMwr .--i.- -+¢�R .�-�'Y 15EF JdIB OEfi�l�N LEU OF �� 96M SHMII ff 7-0' P057 1Aff CXIMI�D AS PQ2 ASiH A65J CRME 90. enarar- � . . ` i . , 1�,� � • �� .. ,L F-IlM �� 1ltFS5 611ER��QiFD 3 MOIUt lUff i : x' ' ' 4 + � �,�i ' �•.� 6 •.T . ],r E NCBpt 71H-2-1/l'a2-1/4'�J/I6�llqa ` ► t... > . r �-� � , �, �,F� SEE BRFAK AlT 3 �FAN qJ1Y IINUiOR iUBE SFWl NEEf A514�500 CMOE 8. , •,, . '_ , � ,' '. � � ' ! �� 71�POST Slfl1CIY/ML 71�II�SIEFL 9iALL BE HOT qP CILVA111ZED PER ASTM A127. 0 i... n�2 •i�2 . � r_� ___ <� _ r.� I �� __.__� _.__ -.__, _ -____. _ • •o �' YOPE Tip 4_ 1!E U�ER S[il POSf 9WL 1E11SCCOPE INSIOE iFE ANCHOR RAE A AlNIYU4 OF 12�. � �' • OF OOMOEIE 11f AIOIOft 71H SlWL E A I�NYUN 27'DFEP WfIH 3'AIN.4'MA%.E%POSm � � � . 4� e /HOYE F�191 CIMQ. � q1A4FACED CEIBIT CO!/CAETE C�i OOIICRE7E D�CUtB 3EC710M ° �00 PSi P.G Z Z 7RAfF1C CIAiB AID Ca1JTi9t 7RAFFIC Cl/iB AIO GUl'TER �o�rrs�iMr.�s v�rOi�ED� • � �fE 9lSE CJtOl10 9NFlLE S SIOP 9611 W6f ff ON i0P'NfN NORE 7FiAN ONE 9GN IS PIM.ED aN THE SMIE POA. w Q .A�/i Flt6i > ' J ; a � _s_ W W �. •� /16'GR 5 � VI R T 0. CBBIf WCEIE Q! �r� �Blf OOIfJEIE � Ip7E � � �IlKiifD�T � I.._ --b` . �R�E M�! ��... .-r rt . e�ir�w�r� �u�an I i. 5�srr�a Pri raa��tr G.e�am W ♦-0' 12'� �16A GR.5 � Z y', • j.. �� CoMbmJaYtp�aV FlANCm NUT •� � �� . rmr� - , . H > . � .� ' . � , � Z � � -L__ 0��°��T� : ' GROUND SURFACE arwaau�artrua + arenwwcE-+¢vecnnav . k�� AT W -��pf�If ..'�r�� ORV9MT BIIIYY� � .. Q PLAN VIEW PARTL4L ELEVATION Wc cElE1R CONCRE7E PECEs7wAN CURe CBEIfi OONCRETE rFDESTRIMI CUNs SQUARE TUBE BREAK AWAY POST C A7CIM�uR u�Ob4 N.T.S. � AID OOIY��dIl4lMri � � — SIGN MOUNTING AND BASE DETAIL ^ L iA � � `c4'Aa wxF�'' "�a�=��. SGIf: Ni5 � 1 Q F11�OF CUIs- - --Fl[E OF CUIS � �P . -�%`r0 ��,� fl4CN OF CURB � .: viwEs�z m ar - n�aa�s --�os ww 'y�. g. �r a��5 LANDSCARNG.REFQ� � -� yA1�g �-� ; i W ` y~ � i�9 S �T�lMbSGPNICi � � r w ro a r \� s�_� -� � �.�a 4 z; PliWS FOR FRONT OF IXftB a+c� r r �� PUWTING RlFD� � ':�carmc�'` :�--�� ivra � ,� �a `� 6��.i 1 0. ::fR 1R'R-, i TR �R_ PJ,eslSTB� �� _... . , nwdwr : ! r`:. `? . �anrwr '� `__ _ _'_LT r�o�'s'. '��U [ }F� '�. b > . b�. . � b'�, na�awr �i. t . aawwr ii9l��Q II } , , , - UP �� ` ' ' ' 1. ' � . .. � . � ' . ' � , . CEYENT CONCIlETE CIlRSE 4DENALK � �VMIES.REFQt • ro a�w 1___ }� ' ' L ' i_.. ETAlpARD KAM R10.12-02 ••• i�r_ �� . . �ve� '�. e w ��K . �r i as i sffr � . � ' ' ' '' � -- '"� - ��+'a�+ IWMNN NLL CURB H�CHT Z RMW.12H:tV WJ!AOP� � iPasCo BakotlCA/ Oi-7611� LPNOS('APIN�G�T TD 7• OEIECTI�£WIHHMIG PATfEFM DU1LL-FACED CEIIENT CEMENT COMCRETE YOUlfTABLE CEIENT i FULL M1DTH OF 9DEW�Wc CONCRETE TRAFFIC CURB TRAFFIC CURB CONf.RE7E TRAFFIC CURB �wrr�r s.r.+rn.�.r� VERTICAL CURB "�� PER WSDOT STNIO�RD PIAN F-10.16-01 PEDESTRIN CURB AND VERTICAL CURB ^ rw�, �u�:w wuc s�o�. � � DETECV�.E WNtNING PATTERN �y.E� � � FULL MOTH OF$DEWNX WNWN fUl CUPB HIXiif L �� L _ � NHEHE AQUCENf TO l/1ND5C�P�11C a SIOEWNJf w p SIOEM'ALN � (6'H) JP � � F (6�) B I � .. 0 N LY �;�..�.,,�..y:�.� �-. �2'' .zt �[t �p�� VARIES 7' : 5 , y.. *'/: WfiH PPFIONC lAT �� < � sf }# s '_.. �. , �. : .:. . �. .��` ; ,y, f . MAMiNN FULL pNiB HEIGNT Fz 5? ��. L.AW .�� ^<'^�y 1."-t�i` .. _��µ�.5 � MkiERE A0.IACENT TO IPMDSCARNC RIGHT TURN ONLY SIGN � � "o� P� _ � � , . SGLE: NTS �,, v DEIECf�BLE WIRHING PATTERN MEA SFNLL �- ` Jp• BE YELL011 NIO IN CONPLIANCE N7i}i WSDOT 2% .• --�� STN/DAR�SPECIFlCA710N SECiION 8-14.3(3). �. � �/':::' �j-.:�:�. � TO hiE DEfECTABLE WNiMING PATTERNS S1ALL � 1 5/8• 2 3�9 �� IXPANSIQJ . 1� ..� .: BE CONSiRUCfED WITF1 A1ANl1FACTURED �� JONf(TYP.) • � - TRUN('ATFD OONES. B 5/9' 1 I/Y . ----_' ��. � � 7/16' 3/4' FIUSH WRH RMDWAY � � � n �"��J� p 7/8' 1 7/I6 ��'� - II ' NITHIN � t-- � DEPRESSEO SIDEwMX I CR0551ALII I D PER WSppT SGNOIRD PIAN F-�0.12-01 `— --" � ADA RAMP DETAIL � Si�CnE4W1 BE IN�CCORD�CE W�IF+TF+E UTESf NUTCD �A�H i � mfllpl,YE1D SICN R1-6 wITM A BIFG(Nq RED LEGQID �F- � ON A FLWRESCENT YELLOW NID WHIIE BAG(GRIXMq. DEfECTIiBIE WNRIING A1FffACE PER WSDOf , � STNIOlJtD PINI F-45.10-00 STOP SIGN � IN-STREET PEDESTRIAN CROSSING TRUNCATED DOME � � � scuE: N,� � sovF: N�s 4 nxF i+rs R ' B C RA � y�`�oF w��G_ ;�P �� NOlED '"�°`^��"' j /► CI TY OF TACO TIME RENTON HIGHLANDS oa.zs.zois 'h� �,� ��;_ � RENTON � ��'P �� onruM ■�..n.r.bClow. UPE?N'�T+U1�005665 -n_sa�<;b�r�sssr<;ySv,Muecw+cesicn^eM ��`�, ; ,%� j,� ' �� ' Plonning�Buildirg/Publie Works Dept. SITEANDSURFACING C3.03 � WIlwa.rdN. :�os=a_r-�a:-av�E;urE�cc-nc�u4na:.w�1 �,:\•__cnEM�r N0. REVISION BY DA7E APPR '°""��' PLANDETAILS "'� 6 �16 RIB1 � 00 � � 4 CONNECT T0�`�, , � MATCn�iNE�SEE��GH I _ 10 - - - - �� DOSfMG 48�0 CNP IXISfY1G SfRUCTURE � �� - 398.6t �"�� , I , ,0 5 LEGEND ��` �� / � PROPEFfY NOMY � � /� BUILqNG FOOTP(dNT �, 4ATpi EX. , � � 1 , � /� � �� . 398.3t �y �: �� '� I �_ , � - SG4.E:d` , � �arcH a. �� , ��I i �� ; �ve.�: - � ��' -'N;- � - - - �� J96.8t \;�� Tp�Ex // - STORN DRM!L1NE E/SEMEHT i'" ,./ 398.33 �/ �� 'WTCH IX. . _ I I� �� E�ISfV GT T� EXISiING SIOHY DRNN 11NE EISEAIINi � N4TCH IX. �/ � i� 396.1k J / i�� o� � STRUCUIURE � --- E%ISiING CONTOIR � i --- �-_--___`` j . '-- --�. . _. � Al4TCH E%. ''�, / : �' / :7 ' / -- � 21D PROPoSED NAION CONfOUR i __ _ - ;� . �, � . - -- --- '�' �-' - , - + ' -- �-- -- I, - ---- - , --�T -- . --- --- -- / � % ,;( I �� 213 Pfi0PoSE0 NINOR CONTWR � � 113675 SPOT ElEVA710N i --- �� p�� i� ��/ � 2.O7L �� i� OO A� . � SLOPE NiROW �� --= � �. �� (�� - -------- CRADE BRFN( � ./�^ I � /� _ = '�. :� ! / . 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I � r' �� I `I I� I � � ' �'I � I C8�01 pOST. 39627 �� 385.85(N) 385.85(5) SfA: 11+54.92. 191JJR _- � � J i ��5.7' �'� � � � . � � �; � 392.78�� I I I��, I I � �� i I� '� � ��i CB+(12 19'�TYPE 2-5(X10 11D 796.28 392.92(M) 385.92(S5h STA: 11+47.93. 168.&7R ' I I� � , i _ �� I T I ' (2 ,� � � �� 1� 1,'{�f �� . �� 'c � ' � � 6��I �� 54'�TYPE 2-SOUO UD J95.90 3B6 08(N��I 3Bb.08(N� STA: 11+47.75� 136.SBR I �� I �I I I r� , LJ I� � � I ii TACO TIME BUILDING �� I III� CB r[14 54Y TYPE 2-SdUD LD 795.98 387Sfi(N) JBZ56(5) STA: 11+41.59, 136.S5R I (4 . . � � I ' -- � i 30�9 SQ.FT. ;' i � ce/as s4�rme s-sauo�o �%.ss 3ea.�s�riw� 3ee.�s�s� SfA. 10+18.75. 135.96R � �I,i � Raoca�o ,s'sraw 1� � r �� i � i � I, � I I E0.5EMENf Pueuc � `� i i ' ---- ce/ob u'�rrv�z-souo�0 3%.a4 aea.zi{w) neezi(s�) STA: 10+11.92� 745.&5R . �I '� � I�. ! � � � ..-: ,%� \ � �{0� 54��TYPE 2-50.10 LD 397b2 388.37(N) J88.37(E)�,STA 10+0329, 177.07R , i � � ) �♦ �� I � � � I �•� �1 I I / �� i � ....,. �� _ I o CB{OB 54��TYPE Z-SOIJO lD ]95.50 �386.14(N) 3B6 14(SW)�SfA 11+41.64, 125.16R � � � � ' � � � ° � ' � � .. , �X rr � j� \ �� C6/09 I 54'�TYPE 2-SOUO LD ]94.56 �' 389.79(E) J88.78(N) Sfk 11+40.00. 101.15R - ��' � � �� i li i� � I y _'�\ � ��I� , � � i � / j ca/io � srors��hx n J94.�5 ; 390.68(E) 3ae.ea(w) STA 11+42.08.83.31R �� i �i � I I �� i � �391.06(N) � �r i � � � i � - � i ' I I I � ¢ ' � // � CB+11 SfORI&ILTER B 393.65 � 390.95(1Y) Sfk 11+43.J6, 29.OfiR I I � �� i '�I � � I I % � ' � �� ----� CB/12 SfORYFlLTER C 39384 391.37(NE) 391.14(S) Sfk 17+26J6,B3.iJR / L�� I I � �� I �' �., 9 , I I 5 . �� ° �I ,I CB/13 54'�ttPE 2-SOLID LID J%.54 � �7.84(E) 387.84(S) STk 10+OB.64. 124.52R i �� . . I I I � "� I . I � 391.54(SYI) � � i � � i � �� -�--- I/_ \- -- . \�\ -_ - -_ --. .- _ I ,� I O � �� 4 DS� _ !I . CB/14 54'�ttPE 2-SOIID 11D 396.25 38Z8�(E) �7.�5) STk 10+09.68, 116.52R \ -FC �I , � _ o � 787.94(W) / � r� � /'/ \. ' - i L J . - ,I. � CB�15 54'�IYPE 2-SqA L1D 395.93 �e�.eKe) 387.81(Sj .Sfk 10+09J2. 109.SZR \ � � 9 i - I 1 � � ;' L L _ � � CB/16 s�•��rve z-souo uo '� ass.ee 387.81(E) �aza4(w�I sr� w+oe.�a. iooszx . � ., - -�� ,- - � � / ; � � 790.36(SEJ 387.81(S) ��, � . \ . . I g � / � � � ��/ CB/17 SfORMFITER D 395.50 389.fi4(E) J87.84(W)�i Sfk 1D+09.B0,92.52R 397.4t � MATCH EX. � � Z _.-, � /I - "---- �� . . , g CA�19 � SfpiMFlUER E 393.92 392.J0(E) 390.00(W) SfA 10+26.61,23.16R � _ � i _. ._ _ , , //�\ ' O -/ ,. � � \ j' �- 7 � 7 r � - CB/19 , NYLppIA$f 8'ORNN B�ISIN 394.17 392.84(N) 392.34(W) Sfk 10+27.93, 15.60R ..YYEft I ��'__ �� / _TB N� �� ' f�\ _ _ I I, C6/20 �.. 1YPE 1 -F#RRINGBONE CRQE 39fi.30 391.9�(NE) Sfk 1D+40.49. 198.16R � i � I ��` �= � � �� _ _- - - - - ' - . , . " -- T � _ _ I ;'I CB+100 54'�IYPE 2 SOIJD LID 39902 38653(N) 38653(S) STk 10+1789 2W07R ... . � ---_-� -- - � / . � ` '--� � � :._ , �� ,',;�.�' �^-.----�__r _ - --- ---- -= i.- -- - -----�-- - - - I - . . . 11�15.52�206.B3R � - - - _ _ I - � CB/I01 54'�TYPE 2 SOUD LIO 39807 38608(N) 78606(S� Sfk ::__ ^ - -- --'�_-�-._. -� . --�-�- - -� - -_ -` - . . . . , . - �� - -- ,<_ - - ----- - �- ..� ' ` �s�� .. 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'°�`ns No�o "°"`,��.�--�r�ocu� 1 TACO TIME RENTON HIGHZLAN aee.�(el sr� 11+62.84.3.80R ORAWINC R-346212 FOR NRikIER DE�AYS � � \ � -- ..- _ . � • L1NE(PU&JC)(N0T SURJtI'm)BASED ON �F oF�. o � CI TY OF DS O4.29.2015 § � cin av r�MON as.Ro-�R ro r�caRo � � '�'�� %wc '"°`°� D R A W I N C R-3/6 2 1 2 F O R F URTH E R D E TNLS. �� ,.r F S'� _�iy '" R E N TO N �� ' f DATUM ' Mn...�n.r.6elow. UPERYR�U14005665 rzs3snaas�rz;3.ez-s�w�.re^r:ecaac,sicN.con� 'F'�'� � ��x j,� � Planning/8uilding/Public Works Dept. GRADINGAND �RC4.�� ° � s.e.�sa. .�: � �;y��,,,r„�q, z�csPACFi�a.e��es�irzw� acoMaw4=�woz f�"e��,ERe�;�? N0. REVISION BY DaTE APPR DRAINAGEPLAN H RIB � 4005664 I N --_, - � \ � � \�T � l �.r ':��/ 1 I \\ � / � 1� . _ _\ r � .� i � `��. / � \ � t� � � � ,I � � _ , �fNJ�'� I � � , , , I ` � � � � - __;�->_ � � � � \ � _ � , A � � � _, � � _ ; ��3 � io s o io t I,.__<< \ , �i - zo �o o zo I -` /-\ I _ �' `i \ \ � y scue. i= zo --- _' � � - -- __ \ � '„ scue. �= t o __ _ , � , � , �- � � , �, • � ,�-�� ,� , .� , � ,�� w � c� `f__ i r � \ ^ o r B� i \ `�j � / � Q � / � � � � 5� ��_�� ! � A� _ � � CB�102 1i � ' �� . � Z :� � I � =� - 7 - � ; ,;,' � � � p �_ � w Q - ` _ , � � / " \� � � �I VI �- ---- � I J - � � - �. �',� � � . ¢ � - -_ -� - � � -- - 2 -- , � � a = - �, ec-`- �';�0� � _ , , � C'3 ' - � , \ �,\ � - _ , �0 , _ Il�2 _ ,,, , � �� : �M� �` �� , _,_ c , `� �� Z ,'' � d' ce�iao �� _� � � , - - - � se ' � � � , _- � � � , � ' �T �-- ' � v _ --,> _ j '', �\ _, �e i 0 ��'r��- � v� � _- �� , 1� � , � �� ' ' � _�' �iot l-' t ' -� - ' � _� -;�. ---.��. I Z - , , 4 � /% �. j�' _ - _ d � ,> ,' ' Y.� f , � t , \_ _ - -e�� W / \ '' � , �� ' � � � �;�' I , ' '�� ' ''J ' l ' -�� `' <� � ', � � , _� - , � ;I � i A � w��^ ' �� - W . � --� . -'-� �� y -� i �� .��_ _ i - � - - �; � � I � � �"�r' � � , �1 � �� .�� - ^ � � U Q ♦io 4io C6�102-54'!TYPE 2 -SOLI�UD . 291F 48'�(�IP DElENT10N RPE O O.Sx CB�06-54'�TYPE 2-SOLID Lb F�M:396.79 FRM:396.84 C8�02-t8'0 iYPE 2-SOlH1 IE IN:385.94 36'(NW) CB/07-54'0 IYPE 2-SOUD IE IN:388.21 36'(`A� PoAI:196.28 IE OUT:JB5.94 76'(5) RIM:397.62 IE OIJ�:388.21 24'(SEJ IE IN:385.92 12'(EJ EG AT€OF PIPE CB eID1-54'/IYPE 2-SOLIO LIU 18LF 36'�p 0 O.Sx IE N:388.37 48'(N) E W:392.92 12'(W) PN:J9B.07 IE OUC 3fi8.37 36'(E) CB NOS-54'�TYPE 2-5(MJD L10 IE OIIL 395.92 12'(SW) FG AT�OF PIPE fdY:396.55 IE IN:386.0�9 36'(N) �p0 321f 12'1 CPEP 6 0.5x � IE IOU�:.788515�6((5) �r � IE OUT:386.08 36'(SE) �100-54'�TYPE 2-SOLID 11D SOLF 48'm RCP 0 0.67L FC AT�OF PIPE�CB+01-54'�ttPE 2-SOLD UD i l � �'�Z RIN:39599 I I IE IN.386.53 24'(N) � , _ EC AT�OF PIPE IE IN:387.56 36'(N) I ' � � IE OUT:386.53 36'(S) � �� ' � - iE OUT-. 387.56 '2'(5J .�. �I V I' 981f 36'o DI 0.ASS 52 WIiF1 ��--�-- - . ,� COATING TREATNINT 9 O.Sx 390 � � _ ��.- ' :�� . J90 �_ _ ..� � � � � � _., -.._- ._- , .- ' . ._.. v 115LF aa'¢CMP CEfEN'ION PI?f ti 0=x-/�� CB/03-54'o i7PE 2-SIXJD LID� �� CB/01-EKIS�. 12tF 24Y pIP OEffN110N PIPE 6 O.SE PoM:395.90 �� PoM:J96.27 IE IN:J97.53 12'(N) IE IN:395.85 12'(NE) 30LF 24Y pIP 0 D.51L 31LF 36'0 DI CLA$$52 0 0.47G IE IN:3%.DB 12"(N� IE IN:395.85 36'(N) _ IE OUC 386.08 12'(W) IE IN:392.79 12'(SlY) CB�01-EIUSf. �0 6tf 12"f CPEP O 0.5x IE OUT:385.85 36'(S) ��. J80 RIY:396.27 '�� IE IN:385.&5 12'(NE) iSLF 12'�CPEP 0 0.57G ��, IE IN:3&5.85 36'(N) �'�. IE IN:392.78 12'(SW) . IE OUf:3BSb5 36�(5) � EC AT�OF RPE EG AT�OF PIPE FG AT�OF RPE FG AT�Of PIPE 370 370 �i '�'rn '�h'�In '.. I 100�00 101+00 200+D0 201+00 202+00 20J+00 �. OFFSITE PUBLIC STORM PROFILE OFFSITE PRIVATE STORM PROFILE 2� ,Q a 2� ?Q ,� 0 2� � HOPoZ�NThL SCALE FIOPoZONTAL SG1LE SGLE: 1'= 20 SGLE: 1'= 20 5 2.5 0 5 5 2.5 0 5 4ERTK'.�L SCALE VEPTIf/1 SCN.E SGLE: 1'= 5 SCALE: I'= 5 � �� ' B C RA � `\�e4 F�'JA� ;,�� ^s No�o "°�""��"' p TACO TIME RENTON HIGHLANDS o+.2s.zois �,,��, �,�To _� CITY OF e t� ��- -�1� RENTON �� I I DATUM r7 n ��. K.o.wvr.helow. UPE3M��T�J1dC05665 -zeae.'+n-Fv;.ea�-;sev.v:wecaa�esiav._an ?\ � -�� j,� � Plunning/Building/Public Works oeat. STORM PROFILES �GC4.QL � � �� Calle.rowrv�eq. z�os=:,_i=�a��En�E-ure=c:r>ccat�.v,+aa+c. �nR�STEF�tiG�= N0. REVISION BY DATE APPR s.c,�sn . � B �16 � R I�R 1 4�0056 4� � STORM DRAINAGE NOTES: i � � �� i 1. STORY DRNN LJNE NATERIAL TO ff CFEP,UNLE55 OTHEANASE � � �::�uaMucca �. �� i � . .w�vewn w+�..a�...n�.�m.ar.... (� '� � SPEqFlED. 'i � �� ,,. �S �w 2. SfDRM ORNN UNES ME PRNATE,UNLESS OhIERWISE SPEqFlm. ...r��rww�a �� .o.�,.wr..sa.'."°" �, ��rv��rn ' - .�..a..o � 3. BI1Rm UTIITES N€SHONN M1 7HER PPPROI(IAIATE LOGTION. � ` F '-; PRIOR TO INSfN1ATqN OF ANY PROJECT INPRO4�IETI15.YFRIFY . •�� LOGlT10N MD ELEVATION OF E7f5iNC UMITIES. IN THE EVENT . �' � ��>y � t: � ��`'�- E7(iWOR WNl OF ANY qSCREPMN.Y FR011 TFE NFORNATKIII PRESEIiiFD ON � � ,�"� TH6E PW1S.NOTIFY T}iE D61GN�IqNEER OF 7F1E 4fWTI0N /\ , � .anwn... � IIMIEpATELY. y.>.. F ( ,� s. i S.aFE m oaw 4. CONSIRUCT ALL UfILI11E5 IN CONFORNANCE 1YIfH THE 7RENCFI \ ��v •,�•��'�'••• I d �'. . raw�.o �w�� ' �acno. � •��,�,/�%��Ilf!..�� SECiION OEfQ UN.E55 OTNERMSE INqGlTEO ON RPHS. �� , � �. `.,��w'�"'p� � , , I ROOF oW1H1-DO�+ � j I 11d�ECT WffH FOO71N4� \� 5. ALL CATCH BASINS ME TO BE SfR1ATED SUCH T}IAT THE W � �� i I ` I ��--- �\ V3:�� OODERORMN PPE�� WISIDE EDCE OF CRATE FWWE 5 AT R1E OF CURB OR FLOW � i . � � �-oauMHc ��" u�oF cu�(wF+�uaPucra�. Z � i L� -' � 1 '�'a - � fRANUUR BACKFILL% � Z �.•� ��'.�. � .� � . �.� �I �� 6. GTCH B�SN INIEf PROTECIION TO BE USm FIXt ALL NEYI w Q 4t,.., �a � T ,�- roe r�aT e-a3.iHi) �� . I; / raFrs.Exccerr Foa w�s wm�souo uos,uN�ss � � �+'' �-r � `isa�i..�,�ad.»�s..e.��asc.�� ....a -..,....�� Ii�.�� I� GE6TD(Ikf FABPoC PER �� OTfERWISE SPEpFlm ON P1M15. a = .� r.�....+w,�.��,s�•�.w..�.c�m+ti . t U '/5[I0T SfD.SPEC. � � � r�s.aa.�Aawe�.e.+v�n..utewnrt I ,. ' i �r.aaacra.n�.+rwr�aroee�.. � I I I 9-3J.T�9.E 3 FOR � 7. LOGTION MD OUNlfIfY OF DOMH�(%li5 SHOWN FOR I _ ••,••`•�•••� *�... .a�e....r�e.�...�ar.w�..w � \.:� .�� gPlIf0AT10N.NONMQ�N ij��, Rff6iENCE ONLY.RffER TO PRCHIfECNRAL PUNS FOR E%ACT Z � �. i�....e.,d�..oa �aa,...ss�..e��..v�.as �L�-^ ` � / � �' �. • LOGTIONS. � I� _�..�.�. ...�M�.a..�. ,�,�„h.� �_�.. ...N.rr.rw� � ��' O�RANS P�W�OR /� . • GRADING NOTES: � � �. �..�:�".�`...a,,..,� Q .,,.«..o��n � .e��so.��u : ... �,o, xi�a 9-03.12(4) i� � � � � � i':,... . ,wn,a.�r.an+u.urc�noa� ( //\�/.\�/.�/�� Z L::�,��. �� 6�PERFORATED PNC INDERDRNN/� ��/� I. THE OOSf1NG 9TE SqLS REOUWE PROPER COI1PhCTION PPoOP W ,,,....a,... �� ..m...�.��,.�..�rres�srvm.. e� PPE WRFi PERFORATIONS DOX7i TO PUCDIEN�OF BUILpNG.PAVING.ANO UfIL1tY IMPROVEYENTS. �c�aruas�srl� s.*�..�.�e�s.m�.ww..q.aeas.�..rm„ PER'MSOQf SiO.SPEC.9-05.2(6) 2. THE SPOT ELEVATIONS MIpGTID pl THIS PIAN REPRESQIT THE � e.+�.e..�a�a..�.w- ThECb.4ROttclUiY.COF�C�T^J1lISNSHNINDIBE(i101rtEDT0/IIKGPbEUYl411EqML9fWlO�6TEMY9EM DE9GN TOP OF PAVEYENf UNLESS OTFERIIISE SPEqFlm. ��.�.«w.d�..�...4>..0.0.�..�. TME ERa«„��.k...,.,��5�0�0.„��,�E.Es...,�.�o.,.�w.��,�,�.��. FOOTING DRAIN SECTION w � _ �«4-�.�...a,��°�°�`�,��„h,,ms n � r.yPVQiv4eiie�Va��/�n�e�►irer��eon � ^�arnluwx�.Ti.vca�uoai.wv�uiaEiausoeE�E�.n�rsrucuiwrs�uosnnowsonww.v�en y � 3. CANTWCTOR SHALL ASSURE POSITIVE ORIfL�GE AWAY fROM � °'vve°auae�a�".e��i+rrr�re�e.4an p y �useaaaca�s�wmen��ewcrswasr�ome¢oroarc,are�mrroeu�oae%em SCALE: NR BINIDINGS FOR N.L WRURAL AND PAVED AREAS MID$HNL �'� �.��K�-� S.�L�lNtst�.�i[M�eF(iiOUIE�WAiFM14NIlOT�EB�nOYNtEwOi1NE,W�6�4FN�5ECIpIMi1i108Rbttarc+.' , E„�t. ��.«��..N, cx+�wE u�rxeas ro vr�cxuo��aec o�ruma. O �weam�senv�.�ri�YWY�'aYe� uxr �rv�r unM.vRwelvPEGROul1EETwOi�EllEuuFE�EMS - Lef�aoov.s�AT,a1oNo�etiGmX9]o.'S��'w �rrurvuanx..c.r�surwnwccw,a�aswvsrnF nnr�cu.wwsuuou+o �(ISTING ADJACENT . � omma�.v.��orne.rmwa�o.eems.rs.+s �.n `i='s 'M � .HnranwrroeEmarteow�iemm�. ?AVEMENT PER PLAN Q `°� "`�r.� •n��r.m.ea+...ue.`.�e+M�.baem.n Bl11LDING PPD •,,•.a,,,,.r�m+�,e1,.yw,.n�a,,. WIDTN YMIES PEr�PIPN 725' � ,rs n,..,.r+�u,ru a r+�rru�e zr�.s�...�we.r �u .�s,w>.�vo ew.a.�e.�wa.4.�e e.vwe as ob wr � �,•°•<,�- •.n.oaa�.�a.�..vo.r�w.o�.e,ocae.c..�,s.�e.e e .� � :, �� ,� a�� S�,w�' -��-��_ -� �. � sNy�wA4alrsaeulN+wa�eF+mskaa�rwr�ei .• w�M+Ns�..s.�.y.wsw.. ��,�.� a � ��- '�'a ��`' ��I-L�lU� �� .,,�,�,.:.�.:,...� � r - �II1=1I1=II � � _� �, �. � 3N.P1,1N-900.OD �'�, 910.PWI-G01.00 STo.flwM -2a¢.00 �.L-llL I I i I�. - P:NJfINC PER r'.'PLIC�ORIi� �� CATCN iASN TI►E 1 P�-6Uc 110RK9 �. CATCM SASW TYlE 7 _.__ PUBIJC�ORNS CATCN BASIN INSTALLATION � I•� � :�F:PiRfYENT _.-_ ---"-- '� DEPARTVF.VT � �,. ,, DEPARTYENT ,, ��I I _ UNDSCAPE �UN d_ ��IN LAftCH 2O08 �� YARCH 2O08 YAkCH 2O09 ��7fSy 1 ._..._.. CATCH BASIN TYPE 1 n CATCH BASIN TYPE 2 n CATCH BASIN INSTALLATION n SWALE ^ � 1 '] 1 ') 1 C 1 scK�. �rrs � SouE r+rs ` ScxF: rrts '' scxF: Nn '' I CITY OF RENTON SURFACE WATER NOTES: 1. 1HESE NO1E5 9V�11 APPEN2 pi PR0.1ECT5 fOR T}ff SURFICE WATER UIIUIY. 13. Ml SEqIfNfAT10N/EROSqN FACIJ116 WJST�M OPERATqN PRqR TO CLE?AING iVID BUILpNC TIfIR NTEI'OED USE.FILF1 WREi 4ULL HAVE FREE-FLO'MNC.POSI7IYE OR/JtMGE TO NI CONSIRUC7pN,/Jb 7HEY YUSf BE SATtSFACTORLY M4NTNMm UNTK CONSIRIR,'ilpl IS COYPLEfm �PPftOVED STORMWATFR CON4EYMICE SYSiEM OR TO MI/�PPROVED OUTFNl LOCATION. �. 2. BEFORE ANY C0161RIICIIDN OR OEYELOPYINf ACIMIY OCCURS�A PRE-00161RUCTNIN IEEIN�G MAT NU Tff PoTEMVL FOR OH-SffE EItOS10N W�S PASSED. NYLOPLAST 6'atAIN BASIN: 28p8AG__X ��N��T 8. WRfTS ON EACH LOT SHNL�LOCATEO Wlhl A FNE-FOOT-HICH,2�I(4'STN(E MeH(EO -_--_-____--_-_- __--.- 14. ALL RETENfION/OEfEN7K1N FlCIL171ES MUSf BE N5TH1ID AND W OPERATION PPoOR TO OR IN STORM'OR'OR/JN'.1FiE STUB-OUT SFIALL IXfEND ABOvE SURFACE LEVtl,BE N516LE,AN�BE �. 3. UL DESIGH IYIO CANSfRUCiqN SH+LL BE M ACCOfi�WCE WffH 7}IE RENTON YUtpCIP�L CODE IR�). CONJUNCTION WIIFi N.L CONSIRUCMIN�CTMtt UNLESS OTHERMSE MPROI£D BY 7HE PUH1C WOf7K5 SE(11RED TO 1HE STNCE �� 7HE UIESf EDRION OF THE STANDARD SPEqFlCAT10N5 FOR RMD,BPoIX'.E MID NUNIqPAL DEPPRIYENT,SIIRFACE WAIER U7ILITY gCTlpl � `�E��h COf15TRUCfION PREP/�RED BY WSDOT/NO TNE PNW(',AN PUBLIC WOfMS ASSOCN710M(MWA),AS C. PPE 14lTERW1 SFi�1L CONFOPoJ 70 UNOERO(UN SPECIFIGTIONS DESCPo�O M CHFFfER 4 OF ; �� AIENOED 9Y if£CRY OF f�NTql PUBLIC NOH(5 DEPNZIHFNT. R$IW.L ff THE SOLE I5. ALL PIPE PNO PPPl1RfFNNICES SIULL BE lN0 INI A PROPERLY PF2FP0(�D FIXHkT10N N THE SURFACE WA7FR 061GN LL4N1AL ANO.IF NON-NEfRLllL.7}iE P�E Si111LL BE PLACm W A ' wrvwcar�+eoaanu _ I RE'SrPOM519LIIY OF THE APPUGN�MO THE PROFE590NAL CML ENCtE➢2 i0 CORRECT MIY ERROR. ►CCORDPNCE Wfh+?HE CURRENT STATE OF WA4NNCfON SGNDARD SPEqFlGTION FOR ROND AND TI�NCH INTH A TRhCING MIRE�60VE OR OTFEH ACC��A�.E DEIECfION. �. I ��'"�9�"�'G�' OABS40N OR WRU110N FRpI TFE ABO�£REOUIF�]f}(i5 FOUND IN THS PUHS.ALL C01�2ECTIONS BRIDGE CONS�RUCTION.THIS SW1LL INCLUUE PE1�55+R1'LEVEIINC OF iHE 1P£NCH BOTTpI OR THE ' i � E) SS+R' . ��,�y�,y;yy� SFYII BE AT NO Wpf10NAL WSf TO THE Cff1'. TOP OF 7HE FWNDATION WTERUL,AS NELL AS PLACDIENT M!D COYPACfION OF F�QURID�ODNC D. PRNATE ORAINAGE E0.5ElAENR ME REOUIRED FOR ORNNAGE SYSiEL15 OESIGI�ED TO CONVEY � r----- - '� � � / i WTEIiIAL,TO UNIFORM GRAOE 50 THAT THE EMAE IENGTH OF THE PIPE MLL BE AIPPOAiED ON A ROWS 1TIRWCN IHOIYUUPL LOTS. �, 4. APPRWrL OF THIS RQeO,GRADING,PNiKHG Mq DRNNAGE PLAN OOES NOT CONS71iUiE MI UNIFORILY DENSE,UNYIELOINC BISE.Nl PIPE BEDDING SHALL ff APMA(XISS'C",WfIH THE �. f j 11PPRQJII OF INY OTHER CONSiRUC710N(E.C.DOMES�IC WATFR CONVEYPNCE,SEMER CONYEYNKE, E7(CFPIION OF PVC PoPE. E. THE PPPl1CANT/CONIRACTpt IS F�SPONSIBLE FOR CAOfiU1NATNG THE LOGTIONS OF ALL I CAS.ElECTRIGII_ EfCJTFE 9,iiFACE WATER DRNW4GE SISIEN SW�LL BE CONS7RUCTFD hCCOR0INC TO S7UBOUT CONVEYANCE 11HE5 WITH FESPECf TO OTHER UIILIiIES(E.G.POWER G15,TElEWIONE, . � ---� ' I THE�PPROVED PLPNS,WHCH ARE ON FlLE IN M7fH THE CRY.PNY DEVIATION FRON hIE APPROYEO 16. STEEL PIPE SH�ILL BE ALUYNIZm.OR C+ILVANIZm M1TN ASPFIALT TRFATMENf i1 OR BEfIER IN90E 74�yp�). PLiWS WILL�WIRE NRITTEN FPPROVPL FAOM THE qfY OF RENTON PIHJC M'OPo(5 OEPMiMENT, AND OUTSIDE. nfe�x_wreaaswu�aas�osmrEu�ons� A1RFI�CE NATER UIILIIY SECi10N. F. ALL INOMW�1 SR1B-OUTS 9W1 BE PPoYATELY DYMm MO MAINTMNm Bf TFE lAT HOYE w � mrw�wwtrir,n�rwcrc��ssanss�. 17. HL ORNNME S7RUCNRES�SUCFI AS CATCH BASWS Nq 14lIHOlES SFWl W1VE SODU LOCKING '.., I. ,a:.ussaw�uwsoFr��n�vrn�+e¢orca ONNER. .., � e�cax:Fa+sxK.�w�xcrsswiffan�i 5. A COPY OF THESE IPPROVED PlANS IIVST BE ON THE JOB SIIE WHENEVER CONSIRUCfION IS IN UDS.KL ORNW�GE SiRIICfURES ASSOCNTED WITN A PQa/M1ENf REfQ1T10N/DEfENTION FACILITY . ', aw+�.-r�w��wxrw.�aroaav�r.rt�a.om� PRO(�2ESS. SFMl1 F41VE SOLID IOCKING L1D5. G. SfIXbl DfWW10E PPE SYSfEMS SHNL NOT PEPE'fPAIE BUILDNG FOUNOATIONS.EJ(CEPf FOR ��, '�.. SU4P%11P p5CF4YYGE LINES USED TO DRNN CRNIL SPACES,PRONDED THE SUMP WNP '�. . �. 6. CRADWG ACTMfES(SfTE ALTFRATION)ARE L1MIlID TO THE FIOUItS OF 7 AN.TO 7 P.M.NONd�Y 18. &11lDRIG HIO 07HEA SIRUCTURE$SFWl BE PIACm IN ACCOfmMICE WfIH T/�&E 4.1 FASE4ENT SlSfEY INCIIAES 84(YCFLOW PREVENTpN OR A pECK YFLVE ' �� I� . 7FIRp1CH SARIROAY ANO NO NUF2K ON SUNDAY I$ALLOWEO.UHIESS OTNEHWISE MPROJED WRFi A W1DTH5 ANO BUILDNIG SEIBPCKS UNES. 23. ALL�STURffD PERNOUS PREAS(�PACTED.GRADm,LANDSCAPED.EfC.)OF THE�EVEIOPMENT �. . i_.. .... + -! MRfTTEN OECISpN BY THE CITY OF RENTON. SIiE MUST DEMONSiRATE ONE Of 7HE FDLLOWING:THE E70SiINC DUFF LAYER SHPLL BE SihGm Ml0 � '�, r-iN 19. Al1 CATCH B�ISIN CRATES SIIALL BE DEPRESSED 0.10 FFET BELOW PAYDIO�lf IFeEL REptSfPogUTEp TO W�NJTNN THE NpSfURE CAPACffY OF THE SOII.OR:NIENOEO SqL SH4L BE �I � - �y„ . 7. R SMHL BE THE APPIlGWYS/CONTR�CTOR'S PESPONS�ILITY TO 09fNN iV.L CONSTRUCTION ADDm TO MNNTNN 1HE A1015fURE GPACIfY. � cslvwea�arvvFsorueraanF'rwwea�ruivaE � . - -__ -_- EiISEIENfS NECESSPRt'BffOHE INIMTING OFF-9TE NORK.EASElENTS f�OIURE qTY RENEW AND 20. ALL DPoVEWAY CIILVERfS LOG7ED WII}IMI CfIY OF RQITON RIGHT-OF-MAY SFi4.L ff OF SUFFIqENf I e.rwncwcuaimra�amw+awwcoaou¢wu � �PPRdV1�1 PRqR TO CONSTRUCfION. LDIGTH TO PROVIDE A YINNUM 3:1 SLOPE fHOM THE EDCE OF 7HE DidYEWAY TD THE BOTfOY Oi p1_ pryppF pF�NgllJry MSUppNCF gyLL�BE SUBMITTED TO THE qfl'PfEOR TO CONSiRUCfKX1 PQiMT ! ws�wx.rons�c+Fw_;wcsena��oesti+ni.r�coev - .� 7FE DffCH.ROCN FOR ER040N PROTECIION OF ROMSIDE DIfCHES.N'HFAE REOURED,9MLL BE OF �pry�. ;oc sc�.m.�caoucs�.x�mnx+ros�nc & FRNIGiSED UIILI7IR OR OTFiER R5TNIATIONS TF1AT PF�NOf SFiOMN ON THESE APPROVED PlANS SOUND Ql1WRY ROCK PLACm TO A OEPfH OF plE(1)F00T MD YUST YEET TFiE fOLLOA1NG ,��R�,� SFU11 NpT BE CONSIRUCTEb UILE55 AN APPRO�ED SET OF Pl�WS THAT MEET ALL qEOUIRQIINIS SPECFlCATN7H5: 25. ISSIiWCE OF THE BULqNG OR CONSIRUCTION PEFMWIIS BY THE pTY OF RFNfON D06 NOT HE]JEVE manr,a�ar�oaEsc'�r. � OF CFMPfER 4 OF iHE SURFACE WATER DESIGN MANIIAL ARE A1B11ffTED TO TFf CfiY OF REMON. 4-8 NQI ROp(//0- 701G PA�NG: THE OMNER OF THE CONTMAYNG lEGi1L OBLIGAIIpI INO/OR WBMfIY CONNECiID N�TFI SfOR1I ,-�.� 2 -4 I�ICH ROCX/30-�PASSNG;MIO SURFIGE wAIER qSP06IIlON.fURfNFR,RiE pTY OF RENTON DOES NOT hGCEPf ANY OBLICATION FOR �. � �� _.auieorros �owiun�¢ rwrt• au�ros 9. DQUN SFMLL BE WWD 88 UNLf55 O7NERWISE►PPRCNED BY THE CfIY Of RENfON.REfFRENCE LESS TFMN 2 INqi ROCK/ 10-20x PASSNiG. THE PIiOPEA FUNCf10NNC NI�WMENNICE OF THE SYSifH PROYIOED WNNC CONSfRUCIION. L�� BENCIMMRK AND ELEVATIONS ME NOTED ON THE PUNS. 21. ALL BUIIpNG OOWNSPOUiS PND FOO7NG DRNNS SHP1L�CONNECTED i0 iHE STORN ORNNOGE Y6. THE WMRhCTOR SFiALL�RESPOHSBLE FOR PROYIqNC PDEOINTE SdFECUIRO,S�FEfY DENCES, a inc w w. �.x �.••o� o w. ��cm ��-o�., � �p µy p�yAIERING SYSiEN NECESSARY FOR THE CONSIRUCIION OF SfOFMWAiER FAqLIfIES MUSf BE ..�,-:s�p,,,:EF�,.,��o„�_«,�„�,t,,,,,��,,,,� --�- .�.,.•,en_ $YSiD/,IINLE55 MPROVED BY THE CfiY Pl?M REVEWER OR SURFA(:E WATER MLIT7 SECTION.PN �ROTEC114E EOUIPYENT,FlA(X',ERS,PNO MIY OTHER NEFDED PCTIONS TO PROTECT THE UFE,HEALTH, - ----"' ---'---- -- SU�IR7ID TO THE qTY FOR REVEM AND IPPROVAL ACCURATELY OHIQI5101�E�,CEHfIFlED AS-BULT�RAWING OF h15 DRWNAGE SISiEM WILL BE ANO SIFEfI'OF THE PU6LIC,MD TO PROIECT PROPERIY IN CpINECTpN WIfFI THE PFRFORMMICE OF _ - �u<.a-�nr.�•i�:�.,��mn.w a•cec=a+e.s�srn�s� , nen.mm��us*w*�a•wo� en rre.r �aa..re SUBNf7ED TO 71iE Qtt UPON COMPLfT10N. WOPo(.ANY WORK WR}IIN THE TRA4ELm RWHf-OF-YUY THAT NAY INTERRUPT NORWIL TRAFFlC FLOW _w�;.c.:�...�. � .wwar�.�sw.rtnw.a�rs x� p �wna.am 11. ALL UfIIJIY TRENCFIES MID RO/�OWAY SUBGR�OE SFWl ff&CIffIl1ED AND C011PAClm TO 95 SW�LL REQURE A IFtIFFIC CONfFtOL PLAN PPPROME 6Y 1NE PUBLIC MOfMS DEPMfYIXT� - v.`-+"��zs��c.n�iw�ma�.vnwivro� �'0"`�',�`�'a�+eom0°`�`x rn �• J� rum�iim"an. PERCQii DENSfiY,SfM10.YiD PROCfOR. 22. DRAMUGE OUREIS(S1UB-0UfS)9W1 BE PRONDED FOR E1CH INOMDUAL LOT,E%CEPT FOR THOSE TRN�SPORTAlION SYSfE16 DMSION.ILL SECTIONS OF TFf MSDOT SfNQM�SPECIFlGTIONS 1-OJ-2] - ,�.�_-�.��..� �.u.,.�.,a�.� N7�Y1� _.,...�a. ma�r�c CONrRo�s�uli wa�Y. - �� wm,cro�s,<•s..�.r,..w,o ermn cu .os..aw � LO75 IPPfl01�£0 FOR IWFILTFUTION BY THE GIY.STUB-OUTS SHALL WPFORY TO THE FOLLOIIING: . . .,x.,�we 12. OPEN CUf11NG OF E%IS1WG ROADWAYS FOR NON-FRANCFtlSED Ui1LITY OR SfOHI ORMNAGE WORK 5 . ��' NOT ALLONED UNLESS SPECklfiVlY APPROVED Bt'TME CIIY OF fiENfON/VID NOTFD ON THESE A FI�CH OUfLEf SFULL ff SURA�Y LOCATEU AT THE LOM�ESi ELEVA710N ON 7HE LQT,50 AS TO Z�. PHQIECf LDG1E0 WIIHN THE AOUIFER PROTECIION MFA(APA)SliI11 COMPLY MTH SPECML � � . �. -•"'"" °`"'`., �"� . PPPROVE�PLANS.N!Y OPEN CUT SFiALL ff RESTOf�D N ACCOFONICE WRF1 THE CITY OF f�NTON SEpy��E ALL FUTURE ROOF DOWNSPOUfS M10 FOOTING DRNNS,ORNEWAIS.YMO DFNNS,MIO REWIRFIOIf�6 OF THE SURFACE YMTER DESN;N MNIlM1 MIO/AUIFER PRQIECIION REGUAilONS �F NYLOPLAST$INCH DRAIN BASIN C 7RENCH RES"ORATION SfPNDPA05. ANY O7HER SURFACE OR SUBSUFFACE DRVNS NECESSPRY TO RENDER 7HE L0I5 SURA&.E f0it (RNC 4-1-Q50). SCAIE V � . �� "'�,''� �� IS NOTED "��"' _a�j CI TY OF TACO TIME RENTON HIGHLANDS o+.zs.zois � BC RA � �� f� �= "" �1� RENTON � �� ' ' DATUM ■....+�w'�below• UPEP.Nii yU'�4W5665 ->s�ez;.ae'�:=3ez'�33s�v'.+r;;acaacEscn�c•+ '��'� � ;'�" j,k � Plonning/Building/Public Worke o�vc. STORMPLAN �C4.03 � wu�..,.,-.r. ��P,��=��,��Es��-E��=^^,w>��"� °�;,q\S,EP��2 N0. 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MEDIATYPE CSF P RI'E 2PG.uAC,PNS ZPG � g=F �� ';�ovF?�.Orv cEAKfLPNI ' Ctx9 RIU-LE:'ATOI. 393.92 �'O �vyp,�immenn*�xnamrrr.nsw�.c�.�nnet R Rx_sr�w.REo RniE �p� P�PE DP'A IE ❑IMAEf= _ - ,N.�Z�rq��,�g�y��p�Fy��,yip��7�pg,y.pg�y,�yg u=Catt==_i�sF.aE3iiEZPGGnCFHS CSF �N__TS'lB 392.80 E' s � OJT_�TS'LB 390.50 A' 4 .// . wrtMw�Co�rif?noNo�F,�cwus�crrvmuF*ulatEt.rrEg�au,pa�acmucrvaf = IE. 4TERiK - CONFiG'JWITI�N �a - i99.4t N CaEV � J ,. ,�s*w,cn.Fsccm�a.'n.aeF,ata,mcn.F E vF0.az n w., si a�r�Er Y s3 nreevmnzeE � `. � '""s .�„H.�owE+siwee eunE�avE .vea.�z cvFr � - aw `�.�rnFraecn �.m � srv�a, ma•.wo�.�c � s2 sa qSECTIONA,A ,E.�.,a 5....F�, ... . r . mow ,a�,cr�c. .w.�:acsb..nui.�. aMe�een.on em_o m�� C°''s. 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Glle.r.,.�..y. z�ocFnnFicp�.�nuE=_urEac:rr,coMa�.va 39+oz cy,SFcrsreF�'ti��? N0. REVISION BY DATE APPR � � 12 16 R I B � '� 0CS664 CITY OF RENTON SANITARY SEWER NOTES AND SPECS: -�-Kd��R=-t �I ' ��..�...� �......�� ,� .,.�.r�.,..E,.�._..w. : ; 1. Nl WOFK NIO WORK IN76EIiL SFW1 BE 1N CONFORMMICE MiH THE$fANOMp$1N�$PECFICATIONS E1.EVATIONS IRE NOTID ON THE PlANS. � �^�� '"•'Y��•�a s x T�� Q � i�ura�rorR�s.wrii��si[�n�raos�urvaa�tic�o�¢ � OF THE pTY OF RENTON PLWWNG/BULDING/R1BlIC WORKS DEPAHIAIENT AND 1HE UTESf EDIfION OF 13. Nl DISNRBED ARE0.5 SH�LL BE SEEDED MID NULCHm OR Oh1ERN15E SfABILIZED RI 1FiE SA6FAL1!Idi IIyiy,py��y��aCy,��W�`�� 1i��• � � . THE WSOOf//�PWA SfANDARDS PND SPECIFlGTIONS,AS FPPROVED NID NOOIFED BY TNE Cftt OF �1��EM FOR THE PREVENTKIN OF ON-SITE EqOSlpi AFTEA THE COMPLEl10N OF rrroantonv�ma�sro�mrwviawricaruE�neKiea��nsmswos - • ' , ��. CONSTRUCTION. a��aaa•.�nom��ns�rx�weawsioeamevmmroaaetmisMou - � „,I -G f�TITON IN 1HE RENTON SfPNOARD PLANS d SPECIFlGT10N5.A SEf OF PPPRWm PlANS SWYL� �od�o�sywaErasfa��c,r�B��onma�cmr ' "' /��'�� I�PT ON SITE AT NL TIMES WPoNG CONSiRUCIION. 14. ALL PIPE NID MPIAilE14NCE5 SHNl ff UIO ON A PfiOPERLY PREPAF€D FOUNDA710N IN � , j �� lYLO61�16N�7169WLB1��91�ii��1�O11B61O�Y1Em01�9Y1LL x�, ' � ;R� u: /� 2. 7HE HOURS OF WO(a(IN THE SfF�ET PoCHT OF WAY$HALL�PER CITY SPECFIG710N5 ON WEEKOAYS '��5 MID SPEGFlCA710N5 OF THE CITY OF RINfON PLPNNINC/BUIDINC/PUBIL fQU6 ��10`��'1OG��'��°�� m�" UNLESS O7HERWISE APPROYED IN WPo71NG BY THE PUNNNfi/�IILDNG/PI�LK WORNS OEPMlf1ENf.AN OEPMiNEM AND THE UTEST EqiION OF hE WSOOT/IP1YA SfANWR05 MD SPEpFIGT1011S,16 p_` pPPROYID TR�FFIC WNfR0.PIMI MUSf ff OHfNNED PRpR TO ffqNNING PNY NVRN WIhUN PU�JC MPRWED AND YOqFlED BY THE piY OF REMON IN THE RENTON SfAN0.VtD PLWS k SPECFIGI� lY1YHILLS1�IpM�6��Yb9�Q91NLEB�i1�MY�YO - ��tl�� 'nsuaca�r��ur�iarsawi�t�wwarv�caw[ma�a�,aioracr ,,��\� ` � � , .. RIGHf OF WAY. THIS SiI11 INCLUDE IECESWiY IfVELNG OF THE TPENCH BQTTOY OR THE TOP OF 1Ff FIXMWOi rarr:vair. �. ,00 NATW/�1.AS WELL AS PLACAAENT kID COIPACfION OF REOUIRm BEDpNG dATER�4,TO UMfUY i-i4 +ca Qa c orr '`y•� �'°' 3. Nl LOGTIONS OF E%ISi1NG UTIITIES SHOIIN ARE MPRD%NATE MIO R SWLL�THE COHIWiCfORS GRADE 50 THAT 1HE EM1RE LENG7H OF TF1E PIPE NILL 9E SIAPOKIED ON A UNIFORNLY DENSL lYlM1HYy1lRW101L59WLE0�lo�1[1E��I�EAOi0�4RY1�[ffi11oC RESPON519U1Y TO YEPoFY THE TRIIE ANO CORRECT LOGITION 50�5 TO AYOID DAMhGE OR UNYIELpNG BASE.NPE BEOOINC 944L BE PFA GFAY0.6 INCHR A904E NID BFLOW THE PPE vi w�s�RawaEwa�a�o��iow.a�aenrcnEowE,s�awuEassas ��.. pSfURBNICE. rarawwrnyoa-ra.�ua�auo��rmssaruEwrwm+rw��qw�riw. �,'"'°.,..'..;«;.`�',�""�',,,,,,^"+.'�.:a.w.�.. «,....�..��. �„r°�,a`0•-� A-A '� 15. SANRARY SEMEA PIPE SW1LL ff POLYMNYL GiLORDE(PYC)RU�ER CdSKEIED ASN D 3034.SOR 15, �*��C�� x � ,'e„a"��,SO1� 4. A PRE-CONSTRUCTION CONFQ2QICE ANO A 24 F10UR NOTICE SIW1 BE REOUIRED PflIOR TO SfMI1NG OR OUC7ILE IqON C1A55 50,UNLESS OTHEfiM15E APPRWEO 9Y THE WASfEWQER U71Utt. • w�:.I�ri4=+ y'�r"��"�'`"".��• S I�YY�@ip�1061r19 W�6�01�091i�9W1��b61aI�F WE190FLiOld166 a r w.+a�v�.r.n x�:w..w�.�w..�'r.�+.rw.a�s w � PEW CONSZRUCiION.R 3MLL BE THE COMIRACTOR'S RESPON519LIfY TO SECURE ALL NECESSMY wo�woBw�rwowEiavuawru�r�rmuaia�urw�wcaruE��oe r-wd�o..d...�a.,.".n � .�.'. � PERMfIS PRI�i TO STMfINC CONSTRUCTION.(INSPECf10N WILL BE ACCONPLISHED BY A REPRESENTATNE 16. IN UNIYPRQ�£D MEIS,YNIHOLE TO DREND WNYUY 6 MICFIES AND WUfYUY 12 INCHE$FBDYE wnotw�osrari.wawaaEonorm�aia�nuc�ur�e�unmm�omn � Y rn."+""'��^�+a'-°'.+" z � FlMSHm GRPDE OR NUSf FMVE NINIWIM T pANEfER CONCREfE RNG POURED AT GRIiDE.IN P�tl�D ^E�EaTME°"'m�w�ruE'W'�m'�s�n�°orr�m^aa'uoi°^°'�¢�rrta'a 's 'rw....":�d��.' '""°"` OF THE CffY OF REIRONJ IT SF1ALL BE THE CONTWCfOR'S RESPONSBIl17Y TO NO71FY 1HE PUBLIC r�eoevno�9ru�orn�oFn.uo�wa�r�sr.ouesyeo�wiorn�vwF� �uiea .,,..,�,a,,,,�,>_,�„_„�„_��,.y.,.o.,.�„m nvr�m.:.�o, F. Z pI€A COJER YUSf YOPE IN ALL DIFECiqNS TO WTCH PAVING. �,.`5'�-;i.. ,.. ma s.*uo c� WOft16 INSPECfOR 21 HWRS IN ADY+WCE OF 9H76lWNG ALL CONSfRUCT10N. �maa9ru�mr��roa,amrt�rs�ruroe�r co[��rnErou�wocoiar ' ..�a.�,e W Q �E11�ODPO�IMO101Y/.'2�O�Oi��9d�RYi�WY1l�IB��O�(YM�SI�61�1f��DM1MlI� " Pb��wsd.�wG�w✓Y�c�a��inw� J .ia�uw�mEmv.c.iu��uEs� ti�.��.....+.........�. ro.K.«..�..d.:�..•�...:«....»,.... 5. CONiR1CTIXt IS 5(M.ELY flESPoN51BlF FOR THE MEMIS,YEfFi005 NIO SEOUQICES OF CONSfFtUC7pN UTILITY NOTES: ¢ _ �.�o��...x. �.., n'.�.m..ki`a s...+su„u'c�'ia:."'u•-°"..a'.. a � MD FOR THE SPfETY OF WORIfFRS MID OTHERS ON THE fAN57FiUCTqN SIfE. ��P..�°�r��....�.aa....�.� - ' 1. NR E70511NC SY1601S RffER 70 TOPOCRAPHICII SURvE'!SHEEf 1 OF 1. am�oErtrn�sro�wwnar.�vwu�o�a��aw�m��a�rnear�o.�wmana ,. . ro � ' , w 6. R SHALL�THE f�5PON519LffY OF THE COHTWLfOR TO 46fNN SfREEf USE AND M1Y O7HEA REIAIID ena�nwoaoaFuas��wme�o�uE�aimn.uvaruiwoxa�mxreutwrw�a o'...:,m�::''��,�,-a�...,a':.�^`.�" .� '�.•.•�> = row[v�narwR�acwauala�w�wmuc*IrinE�u�ma.u�wrxiowsr�m�am pEpyRS pgpq Tp Nly CONSfRUGfIpN, 2. BURIm UIIlJT1ES ARE SHONTI IN THOR MPROXHIATE LOCAiION.PRIOR TO INSTALLATION OF NIT mo[n raa�is W _ _� ,g�. - _,�- �. �r��.o,�. ��. � �` � � , E.oe mx� .�sf.m.s�n owc. - _ �� -� -_-" " Y i �� ,. 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T'E�,_EVEL CONiROL SYSTEu, -.- -.--,, �\� MTEGRA� TO TIE PU4P.i5 INTRIty51CAL�V SAFE . . .,a5 INTEGRAL i0 THE PUIP.iN INTRINSICALLY $pFE d��IC..=..�=T.Et:a_�S:pN PROOF �a•pWv PiP[ (4 0 �C . Ik 1� �FEEi ... '�GRCW � � L.�,� 1__"'__. q 50'�YAILABL�APPRi7'�/ED BY CSA FOR QASS 1. �f 6'�R35 PPE !�E320L`1X �I' AI f� `� N CFa�E T4:=LEx N�V� F�O�R�r55: `JY61CW8Y1,fRJ1Y 4 TIE LMLUCONi�I K .,�?'F = �_ �6TALLA'ION ovs°�cwvnue�E w�ovEo er esn aoa anss t �1GG�73 L CJ17�374 �u � �a4 itS�F�? ssrEx wrecrrr,�.a�aw.s iHrnraicwr s�v� NAO'32P01 TRIPLEX GRINDER PUMP n „ �oo�u er ec� scx�: H,s � t-« -s�_ �.��E a��- -��Mi TS ,F F r:. z��,r.e —^n.--'-5�--�- �j /jj �._�.. BECD�.NG pATERI4L ��P i„ I � v�.?4RY SEN£R PIPE _'c tiC?E 6i —� �� G.0. OF PiPE i,: I .',C�p'�,�p, _E�.'EL - 6" �EG�I^:�F;�F �AI�ITSt?,iEWER PPE �.�R�J'.t�E Jhf�"Pr�:CPyi u40E4 B�N+E� I �M�O f,u�n��P XWnp�ES ��W Wry 7 CpFAC'eED6MG Y�RRAL tt1 95i Y�A.JE115iT't E%tIDT GFc-•., �T�� o�cw Ax.��xo rwv aar. 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