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Home My WebLink About03556 - Technical Information Report ) �.., ��- �, ,� (- r , .. .,r�Alta � ��J � �1 �1 � ,�1�� . + � � St. Thomas Orthodox Church � 11651 SE 188t" St. � PARCEL NO. 6198400020 � Technical Information Report Conditional Use Permit 2 Submitted to: City of Renton Development Services 1055 South Grady Way Renton, WA 98057 Submitted b : Y Alta Cascade, Inc. 310 North Meridian, Suite 200 Puyallup, WA 98371 4/16/2010 �`�`� P� I hereby state that these Drainage Calculations have �C'�oF A'ASI�rI been prepared by me or under my supenrision and meet �� ca the standard of care and expertise which is usual and � � ;� i customary in the community for professional engineers. - I understand that the City of Renton does not and will f� not assume liability or the sufficiency, suitability, or � �o0 405 ' performance of drainage facilities prepared by me. S E NAL E CITY OF RENTON FtECEIVED AUG 2 3 2010 BUftDING DIVISI0�1 �'.3.�-SCo St. Thomas Orthodox Church � j TIR �� '1`�1tC� ��il,J�'�l r,�� ;�� TABLE OF CONTENTS Section Paqe 1.0 Project Overview.........................................................................................................1 2.0 Conditions and Requirements Summary......................................................................3 3.0 Off-site Analysis...........................................................................................................5 4.0 Flow Control and Water Quality Facility Analysis and Design......................................6 5.0 Conveyance Systems Analysis and Design.................................................................7 6.0 Special Reports and Studies........................................................................................7 7.0 Other Permits..............................................................................................................7 8.0 CSWPPP Analysis and Design....................................................................................8 9.0 Bond Quantities, Facility Summaries, and Declaration of Covenant.............................9 10.0 Operations and Maintenance Manual ..........................................................................9 Appendix A General Exhibits Soil Information............................................................................ A-1 City of Renton Aquifer Protection Map............................................... A-2 Downstream Analysis..................................................................... A-3 Flow Control Application Map........................................................... A-4 Appendix B Drainage Design Pre-developed Sub-basin Map......................................................... B-1 Developed Sub-basin Map...............................................................B-2 Appendix C TIR Documents Bond Quantities Worksheet................................................................C-1 Appendix D Erosion and Sediment Control Erosion and Sediment Control Plan..................................................... D-1 St. Thomas Orthodox Church A ' � TIR ��1�.~�'�11�CZ �i1,J('�I�I% � 1.0 Project Overview This report accompanies the Drainage Control Plan for the proposed second Conditional Use Permit project for the St. Thomas Orthodox Church remodel at 11651 SE 188'h St. The property is located at the southwest intersection of SE 188�h St. and 118'h Ave. SE as shown in Figure 1 below. Sc ;82ND ST W SE f c�<'ND ST �, i i Q � ro sE te4rx sr � �� . - &GL2l�:+FrD � �� WJ£PARX" --�� - sE rasrH sr � ��` ' � �- SE f86TN PL N . . ` w .��J SE 7877H Fi � � 4j+ SE T 88TN 5T �.�. e . ., i � PRQ!£C7 $ ` � SE 788TH PL � Q S�7E A �� m SE 19 Sr � � BOULEUARD LANE PAR1! SE i92ND S: ' � W � � 0. � Q � � w ti e x � n � '< A � r��. � � '�.. � h "�� ^ m �,�, .SF 196TN ST J �� f F� Figure 1 —Site Location Currently the site generally slopes at approximately 1.5%from the southwest to the northeast. The 'i property is bordered on the north by SE 188�h St. and by 118'h Ave. SE on the east. An existing drainage ditch adjacent to each of these roads conveys storm water runoff from both the project site and roadway. The ditch prevents runoff from entering the site from the north or east. The property is bordered on the west and south by neighboring residential properties. The land surface along the property lines is generally flat prohibiting off-site drainage from entering the project site. The soils on the site have been identified as Alderwood gravelly sandy loam (AgB) according to the National Cooperative Soil Survey. The 2009 King County Surface Water Design Manual classifies Alderwood soils as Hydrologic Soil Group C. The soil map can be seen in Appendix A-1. The 1.11 acre (48, 853 ft2) project site consists of a single family residence, an abandoned house, and an existing mechanical shed. The site also includes an asphalt driveway, two gravel driveways, and a private gravel road. The site also contains several concrete surface areas and large gravel surface areas throughout the site. 1 St. Thomas Orthodox Church � �• 1y1 ta �'��,�� r'� T1R -�Jt�' � Stormwater runoff from the pre-developed site flows into the ditch adjacent to the east and north property boundaries. A portion of the runoff is collected by an existing private ditch and conveyed east to the ditch on the west side of 118th Ave. SE. The ditch flows north along 118�' Ave. SE to the intersection of SE 188�' St. and 118'h Ave. SE. The storm water then flows west along SE 188`h St. through a series of ditches and culverts along the front of the north property boundary. Runoff from the north portion of the site flows into these ditches. The drainage then flows north through a culvert below SE 188th St. to the downstream drainage facilities. The pre-developed sub-basin map can be seen in Appendix B-1. For this property, under an approved Conditional Use Permit, LAU-08-102, a building permit application, B100038, has been submitted to the City. The Building Permit application is for remodeling an existing 2,016 sf shed into a 2,000 sf building to serve as a Church with 19 paved parking spaces. Two existing driveways will be abandoned and replaced with an asphalt driveway, access, and parking area. Additional improvements along the frontage of the property adjacent to SE 188th St are also included per the requirements of the City of Renton. The frontage improvements include additional widening of the asphalt pavement, concrete curb and gutter, an 8 ft planter strip, a 5 ft sidewalk, and one concrete access driveway. The newly paved access and parking areas will be sloped such that stormwater runoff flows northeast. The existing private drainage ditch will be replaced with a new bio-filtration swale, north of the paved turn-around location. This new swale will collect runoff from the southern half of the project site and convey it east, to the existing ditch adjacent to 118th Ave. SE, as before. A second bio-filtration swale will be constructed along the north property boundary to collect runoff from the north half of the project site. The runoff will then be conveyed east, to the ditch adjacent to SE 188�' St. The developed sub-basin map can be seen in Appendix B-2. The specific areas under consideration for this report, and the second Conditional Use Permit, are the additional areas proposed as part of a second City of Renton Conditional Use Permit for the proposal. This project proposes to add 13 additional Asphalt parking areas, a concrete waiting area, and an additional roof area for the church building expansion (see Developed Sub-basin in Appendix B-2). The areas are detailed below in Table 1. Table 1 — Proposed Areas Area Area Total Total (ftz) (acres) (ftz) (acres) North Asphalt 558 0.013 Pollution Parking 4,143 0.095 Generating South Asphalt 3,585 0.082 Impervious Parking Surface Concrete Non 1,175 0.027 Pollution Waiting Area Z,543 0.058 Generating Building Roof 1,368 0.031 Total 6,686 0.153 2 St. Thomas Orthodox Church I��' "��ta �� (��,�� TIR -,l�� ..� �_. _, � � 2.0 Conditions and Requirements Summary The City of Renton Municipal Code section 4-6-030 requires that permit applications include a drainage plan per 2009 King County Surface Water Design Manual (SWDM) as amended by the City of Renton. The Code also includes special requirements for Aquifer Recharge and Protection Areas. The proposed project site is not located on an Aquifer Protection Area as defined by the City of Renton Aquifer Protection Zones map (see Appendix A-2). As this project qualifies as requiring Full Drainage Review, the proposed project is required to comply with all eight Core Requirements of Section 1.2 and six Special Requirements of Section 1.3 of the SWDM. The eight Core Requirements from Section 1.2 of the SWDM are: • Core Requirement#1: Discharge at Natural Location • Core Requirement#2: Offsite Analysis • Core Requirement#3: Flow Control • Core Requirement#4: Conveyance System • Core Requirement#5: Erosion and Sediment Control • Core Requirement#6: Maintenance and Operations • Core Requirement#7: Financial Guarantees and Liability • Core Requirement#8: Water Quality The six Special Requirements from Section 1.3 of the SWDM are: • Special Requirement#1: Other Adopted Area-Specific Requirements • Special Requirement#2: Flood Hazard Area Delineation • Special Requirement#3: Flood Protection Facilities • Special Requirement#4: Source Control • Special Requirement#5: Oil Control • Special Requirement#6: Aquifer Protection Area The Core Requirements have been addressed with this drainage plan as follows. Core Requirement#1: Discharge at Natural Location Stormwater runoff from the project site currently flows into drainage ditch along the east and north edges of the property. The proposed drainage plan will discharge runoff to the same ditch at roughly the same locations. Drainage from the southern half of the project site will continue to be discharged to the east ditch while drainage from the northern half of the property will be conveyed to the north ditch. The natural discharge locations will be maintained by the proposed stormwater management plan. Core Requirement#2: Offsite Analysis A Level 1 Downstream Analysis was completed by Thomas Mudayankavil on August 20, 2008. The analysis was prepared in accordance with Core Requirement#2 of the 2005 King County Surface Water Design Manual. The analysis did not find any evidence of existing or potential problems 3 ' �I St. Thomas Orthodox Church f�f^��-a �'�).J�,��''l TI R � related to the existing or proposed site. A copy of the Downstream Analysis has been included for reference in Appendix C. Core Requirement#3: Flow Control The project site is located in the Forested Conditions Flow Control Duration Standard area per the City of Renton's adopted Flow Control Standards Map. Per section 1.2.3.1 of the SWDM, flow control duration standard areas are exempt from flow control for any threshold discharge area in which there is no more than a 0.1 cfs difference in the sum of developed 100-yr peak flow and the sum of forested site condition 100-yr peak flows for the same surFace areas. The pre-developed, forested 100-yr peak flow is approximately 0.012 cfs. The developed 100-re peak flow for the target area is 0.072 cfs. The change in 100-yr peak flow for the proposed areas will not exceed the 0.1 cfs threshold. Therefore these areas are exempt from flow control. Core Requirement#4: Conveyance System This proposed project will include extension of paved surface and roof surface to the already proposed surfaces on-site. The paved surfaces will continue to flow to the proposed bio-swales and beyond to the existing adjacent ditches. There are no additional conveyance systems necessary for this proposed surface. The additional roof surface for the church building expansion will be collected and conveyed via traditional gutter and downspout connections to the existing ditch east of the building. Core Requirement#5: Erosion and Sediment Control Erosion and sediment control requirements will be met for this project as detailed below in Section 8. The plan includes the delineation of clearing limits via flagging. The plan also includes instruction regarding proper cover measures for the protection of disturbed areas. Perimeter protection will be maintained via silt fencing installed around the perimeter of the site. A stabilized construction entrance will be provided to prevent the transport of sediment to offsite roadway surfaces. The Erosion and Sediment Control Plan has been included as part of the original conditional use permit construction plans on sheet C-2. The plan can be seen in Appendix D. Core Requirement#6: Maintenance and Operations A Maintenance and Operations Manual is not required as there are no additional drainage facilities proposed in conjunction with this project. Core Requirement#7: Financial Guarantees and Liability A bond quantities worksheet has been provided for this project and can be seen in Appendix C-1. The applicant will provide construction bonds and obtain liability insurance as necessary prior to construction. Core Requirement#8: Water Quality Per section 1.2.8 of the SWDM, projects are exempt from water quality requirements if less than 5,000 sf of new pollution generating impervious surface is proposed. 4 St. Thomas Orthodox Church � 1 T1R �=\- 1`"i1tC� ��r��'�l��F' .;.��, � The Special Requirements have been addressed with this drainage plan as follows. Special Requirement#1: Other Adopted Area-Specific Requirements No other area-specific adopted requirements have been identified at this time. Any additional area- specific requirements will be addressed when applicable. Special Requirement#2: Flood Hazard Area Delineation The project site does not contain, nor is it adjacent to a flood hazard area. This requirement is not applicable. Special Requirement#3: Flood Protection Facilities The proposed project does not propose to rely on flood protection facilities. This requirement does not apply. Special Requirement#4: Source Control The proposed business will be a place of worship and will not include storage or transfer of � hazardous materials, manufacturing, washing, production, or vehicle repair. The only source control , activity in the 2009 King County Stormwater Prevention Manual (SWPM)that is applicable to the site ', is activity A-1, Required BMPs for all Commercial Properties. I These requirements include maintenance of storm drainage systems, the elimination of illicit storm � drainage connections, and storm drains identification. The proposed project will implement these source control requirements. Special Requirement#5: Oil Control The proposed project will not be considered to be a high-use site. Oil control requirements are not applicable to this site. Special Requirement#6: Aquifer Protection Area The project site does not lie within the City of Renton identified aquifer protection area. This requirement does not apply. 3.0 Off-site Analysis A Level 1 Downstream Analysis was completed by Thomas Mudayankavil on August 20, 2008. The analysis was prepared in accordance with Core Requirement#2 of the 2005 King County Surface Water Design Manual. The analysis did not find any evidence of existing or potential problems related to the existing or proposed site. A copy of the Downstream Analysis has been included for reference in Appendix C. 5 St. Thomas Orthodox Church ��ta �'��,�'r-;r�I� TIR ��,�� ,� � � _� 4.0 Flow Control and Water Quality Facility Analysis and Design The peak flowrates for the pre-developed and proposed project were estimated using the King County Runoff Time Series Program (KCRTS) using the following assumptions: Pre-Developed The project site lies within the City of Renton area-specific flow control duration standard matching forested conditions. The site areas under consideration for this report can be seen on the Pre- Developed Sub-basin Map included in Appendix B-1. Project Location: Sea-Tac Scale Factor: 1 Land Use Type: Till Forest Area: 0.153 acres The peak flowrates from the KCRTS for the pre-developed site are shown below in Figure 2: Flow Frequency Analysis -------------------------------------------------------- Time Series File:pre-dev c.tsf Project Location:Sea-Tac ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Peak - - Peaks - - Rank Return Prob (CFS} (CFS) Period 0.010 2 2i09i01 18:00 0.012 1 100.00 0.990 0.003 7 1i05i02 16:00 0.010 2 25.00 0.960 0. 007 4 2/28/03 3�00 0.007 3 10_00 0. 900 0.000 8 12i23iO3 2: 00 0.007 4 5.00 0.800 0.004 6 1i05i05 8:00 0.006 5 3.00 0. 667 0.007 3 1i18i06 20:00 0.004 6 2.00 0.500 0.006 5 11i24/06 6:00 0.003 7 1 .30 0.231 0.012 1 1i09i08 9:00 0.000 8 1. 10 0.091 Computed Peaks 0.011 50.00 0 .980 Figure 2— Pre-Developed Peak Flowrates (KCRTS) The 100-yr peak flowrate for the pre-developed area is 0.012 cfs. Developed Project Location: Sea-Tac Scale Factor: 1 Land Use Type: Impervious Area: 0.153 acres The peak flowrates from the KCRTS for the developed site are shown below in Figure 3: 6 St. Thomas Orthodox Church ��ta �'�l,��'i!��' TIR �1 f-'� ' � Flow Frequency Analysis -------------------------------------------------------- Time Series File:dev c. tsf Project Locatian:Sea-Tac ---Annual Peak Flow Rates--- -----Flow Frequency Analysis------- Flow Rate Rank Time of Pea.k - - Peaks - - Ra.nk Return Prob (CFS} (CFS} Period 0.037 7 2i09i01 2: 00 0 . 072 1 100.00 0. 990 0.033 8 1i05i02 16: 00 0.056 2 25.00 0.960 0 .045 4 12i08i02 18:00 0.045 3 1�.00 0 .9�0 0 .038 6 8i26iO4 2:00 0.�45 4 5.00 0.800 0 .045 3 10i28iO4 16:00 0.040 5 3.00 0.667 0.040 5 1i18i06 16:00 0.038 6 2.00 0:500 0.056 2 10�26i06 0:00 0.037 7 1.30 0.231 0.072 1 1�09i08 6: 00 �.033 8 1.10 0.091 Computed Pea.ks 0.067 50.00 0.98D Figure 3— Developed Peak Flowrates (KCRTS) The 100-yr peak flowrate for the developed site is 0.072 cfs. Section 1.2.3.1 of the SWDM specifies that a project is exempt from flow control if the 100-yr peak flowrate for the developed site does not exceed more than 0.1 cfs from the pre-developed site. The 100-yr peak flowrate increase will be 0.06 cfs. Per the calculations above,this project is exempt from flow controL Water Quality Per section 1.2.8 of the SWDM, projects are exempt from water qualiry requirements if less than 5,000 sf of new pollution generating impervious surface is proposed. No water quality facilities are required or proposed. 5.0 Conveyance Systems Analysis and Design This proposed project will include extension of paved surface and roof surface to the already proposed surfaces on-site. The paved surfaces will continue to flow to the proposed bio-swales and beyond to the existing adjacent ditches. There are no additional conveyance systems necessary for this proposed surface. The additional roof surface for the church building expansion will be collected and conveyed via traditional gutter and downspout connections to the existing ditch east of the - building. 6.0 Special Reports and Studies No additional special reports or studies have been required in conjunction with this proposed project. 7.0 Other Permits , There will be an associated building permit required for the church building expansion. There are no I'� additional required permits identified at this time. Additional permits will be obtained as necessary when required in conjunction with this proposed project. 7 St. Thomas Orthodox Church � 1 T/R ��:� .t`11�C� ��I,J�'i!�i�' � 8.0 CSWPPP Analysis and Design As required for Core Requirement#5, an erosion and sediment control plan has been provided in conjunction with the construction activities for this project to prevent the transport of sediment from the project site to downstream facilities, water resources, and adjacent properties. Due to the flat nature of the project site, no areas with high susceptibility to erosion have been identified. Erosion and sediment control measures are proposed An Erosion and Sediment Control plan has been included as part of the construction plans on sheet C-2. The erosion control plan can be seen in Appendix D-1. The ESC Measures as identified in 1.2.5.1 of the SWDM have been addressed as follows: Clearing Limits Clearing limits have been identified and depicted on the erosion and sediment control plan. The plan requires that the clearing limits shown on the plan shall be clearly flagged in the field prior to construction. No disturbance beyond the flagged clearing limits shall be permitted. Cover Measures The ESC plan requires cover measures for areas of striped vegetation that are anticipated to remain unworked for a period of two days. Additionally, the plan requires cover measures for any disturbed areas that remain unworked for more than two days during the rainy season. Perimeter Protection Perimeter protection measures will be provided through the installation of silt fencing around fhe perimeter of the project site. The plan also requires that silt fencing be inspected immediately after each rainfall and daily during prolonged rainfall. The plan also requires that any required repairs to the silt fencing be made immediately. Traffic Area Stabilization Stabilized construction entrances will be provided to prevent the transport of sediment to off-site road ways. Sediment Retention It is not anticipated that a sediment trap is required for this project. Per Section 5.4.6 the 1990 King County Surface Water Design Manual (SWDM), perimeter protection is sufficient as the sole form of treatment for sites with small drainage areas. The site is nearly flat, has no flowpath greater than 150 ft, and will result in little to no runoff. Perimeter protection will be sufficient. Surface Water Controls Surface water controls are not anticipated to be necessary for this project site. The project area is small enough that perimeter protection should be sufficient. As an additional protection measure, the plan included inlet protection for downstream catchbasins to additionally prevent sediment from entering the public storm drainage system as necessary. 8 St. Thomas Orthodox Church /�' t'l�ta �'��r��, T/R .,r;-\� , .. ,� Dust Control There are no anticipated traffic hazards expected to result from wind transport of soil. Preventative measures will be implemented through watering practices should the need arise. 9.0 Bond Quantities, Facility Summaries, and Declaration of Covenant A bond quantities worksheet has been provided for this project and can be seen in Appendix C-1. There are no storm drainage facilities proposed for this project. 10.0 Operations and Maintenance Manual A Maintenance and Operations Manual is not required as there are no additional drainage facilities proposed in conjunction with this project. 9 St. Thomas Orthodox Church �� /� �� ' „�,�� r r r, TIR .�s� nl ��J ..�,� � � Appendix A — General Exhibits Soil Information A-1 City of Renton Aquifer Protection Map A-2 Downstream Analysis A-3 Flow Control Application Map A-4 St. Thomas Orthodox Church ^��a �'�l."�'�t �j�' TIR �.,l�� ,� ��. �. � � A-1 Soil Information Soil Map—King County Area,Washington (11651 188th Ave.SE) Q O N N N So1490 56�500 5615�0 561520 56�530 561SM10 56�550 561560 561570 47°26'2' 47°26'2" `�`" `� , ��; - .t_ _ .�� _ � ��.—. - � ' coi � �x_z'�„ ,�,�_ g _ , .. � _.,.. .s..,. "'- _� ,.. ,..,. � n c� r. . � N y� Y] �y N r � M � � � � z: � �x�l - ` �'�:•': o �� o � < � � � � �` ,�,�� n N N N �. - �. � �� '� ..��t O .. , :=y :;:.. � '"� p O 0 r N � .. �.�,.: ��. � y� � . Y... 1� .� �'$� , • . :i. .:. -.... ,>y.y�.. � �.'. � . �" .. , <. � ., .�,.<. ; .. .. . . p „`O� ��.: '�_. - m u� ' .. � � . ,... . . � _ �<>.�.., .. ..�� ry � �7 . � . p O m m � '� � � tn = .,._:-. N LL�] � p O n ... ��.. � � y� N ` ` .,... :: . z.',': N .. ��i :, .. �i N � ,. ti. . � ... , � O N � �p N u] � � N � r i . >: �zy � � m �;^'��--: m � � � N N � � flCSF •� O O £-e� . , v"�`-.. .. � V _ N � � O ' :' :, .. �.._ O t'J � _ � V '. -'t.. r ' .. Nl �- N ..,:�.. F ':< : i.� ' < , .. � �- `Kf ��'�: �(] � i . #S�s.�.. � . �.Y .. s. : s— " v . p=' `gf�. _ f< p ,� �,....�' 3. .f�:-.. .:�3.x _'. . .. .. O (V _ _ N � � ..,. , . ,...r x, :. . �, � ��.� t<, ,.. :. '. ,� , . . ` .:. .: � .< < �(1 � - ' .......� _ . ':; . ` �;" . N ... i1.L � - u� r.�. � 47�25'S9" `� �� .._ . ..,. <;_. ..... . -� .. . _ ._... 47°25'S9" 561490 56',500 561510 56152u 581530 �o'.a:0 So'.550 56�560 561570 ` Map Scale:1:577'rf printed on A size(8.5"x 11")sheet. � Meters N N � o s ,o zo �o � Feet 0 20 40 80 120 U�bA Naturai Resources Web Soil Survey 1/14/2010 � Conservation Service National Cooperative Soil Survey Page 1 of 3 Soil Map—King County Area,Washington (11651 188th Ave.SE) MAP LEGEND MAP INFORMATION Area of Intereat(AOI) (�, Very Stony Spot Map Scale: 1:577 if printed on A size(8.5"x 11")sheet. � Area of Interest(AOI) � Wet spot The soil surveys that comprise your AOI were mapped at 1:24,000. Soils ,, Other Please rely on the bar scale on each map sheet for accurate map ' Soil Map Units measurements. Special Line Features special Point Features , Guliy Source of Map: Natural Resources Conservation Service v elowout Web Soil Survey URL: http://websoilsurvey.nres.usda.gov , , Short Steep Slope Coordinate System: UTM Zone 10N NAD83 � Borrow Pit � �� other This product is generated from the USDA-NRCS certified data as of X ciey sPot Politicai Features the version date(s)listed below. � Closed Depression � Cities Soil Survey Area: King County Area,Washington � Gravel Pit Water Features Survey Area Data: Version 6,Sep 22,2009 „ Gravelly Spot - Oceans Date(s)aerial images were photographed: 7/24/2006 � Landfill _ Streams and Canals The orthophoto or other base map on which the soil lines were A Lava Flow 7ranaportetion compiled and digitized probably differs from the background .i-i..i. Rails imagery displayed on these maps.As a result,some minor shifting ,,� Marsh or swamp of map unit boundaries may be evident. x Mine or Quarry �'�+" Interstate Highways po Miscellaneous Water -� � US Routes p. Perennial Water Major Roads v Rock Outcrop /v Local Roads �- Saline Spot Sandy Spot = Severely Eroded Spot p Sinkhole � Slide or Slip �af Sodic Spot _, Spoil Area ,Q Stony Spot USDA Naturel Resources Web Soil Survey 1/14/2010 � Conservation Service National Cooperative Soil Survey Page 2 of 3 Soil Map-King County Area,Washington 11651 188th Ave.SE Map Unit Legend King County Area,Washington(WA633) II Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 'Ag6 Alderwood graveqy sandy loam,0 to 6 1.4 100.0%I percent slopes � ITotals for Area of Interest 1.4 100.0%', USDA Naturel Resources Web Soil Survey 1/14/2010 �� Conservation Service National Cooperative Soil Survey Page 3 of 3 Sf. 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Y � ( � � - �� .�, �. , 1y.�+ � ...�� ryS-.- _ � �_ ip n I �r� � f� �� i ' 1' .... � � � I I.. � _ ` \ - _ _. . . , ___.'-. . �1 St. Thomas Orthodox Church A ' f TIR .��:� 1`�1�C� ��l,J�'ilri('' � � A-3 Downstream Analysis LEVEL 1 DOWNSTREAM ANALYSIS Prepared for: St. Thomas Orthodox Chuxch, Seattle 11651 SE 188th St. Renton, WA 98058 Prepared by Thomas Mudayankavil, P.E. 20207 25th Dr SE Bothell, WA 98012 Augnst 20, 2008 sv.MUDqY O� OF w'LS/��+F'9 `�� ` �'o� y ��' � � �02�5�q �,4'� �,L� �IS'17':t"'� G�` �SIONAL�� EXPIRES 10/02/08 St. Thomas Orthodox Church, Seattle LEVEL 1 DOWNSTREAM ANALYSIS TABLE OF CONTENTS I. INTRODUCTION 1 II. PROJECT OVERVIEW AND STUDY AREA DEFINITION 1 III_ REVIEW OF AVAILABLE INFORMATION ON STUDY AREA 2 N. FIELD INSPECTION&DESCRIPTION OF DRAINAGE SYSTEM 3 A. UPSTREAM DRAINAGE ANALYSIS B. ON-STTE DRAINAGE CONSIDERATIONS C.DOWNSTREAM DRAINAGE ANALYSIS V. CONCLUSION 5 LIST OF FIGURES FIGURE 1—VICINITY MAP FIGURE 2—SITE MAP FIGiJRE 3 -TOPOGRAPHIC MAP FIGURE 4—SOILS MAP FIGURE 5-DOWNSTREAM ANALYSIS MAP FIGURE 6-STREAMS MAP FIGURE 7 -EROSION HAZARD AREAS MAP FIGURE 8—LANDSLIDE HAZARD AREAS MAP FIGURE 9-100 YFAR FLOOD PLAIN &WETLAND MAP � FIGURE 10—SEISMIC HAZARD AREAS MAP APPENDIX A 1. Off site Analysis Drainage System Table 2.K.C. Flow Control Application Map 3. King County Drainage Complaints INTRODUCTION This report was prepared at the request of St. Thomas Orthodox Church in sup�ort for their CUP application to remodel the existing shed located 11651 SE 188 h Street, Renton, King Counry to be used as a worship place. This Level 1 Drainage Analysis was prepared in accordance with Core Requirement #2 of the 2005 King County Surface Water Design Manual. PROJECT OVERVIEW AND STUDY AREA DEFINITION The property is located near the intersection of 188'h street and 118�'Avenue SE on the west side of 118ih Avenue SE in King County and situated within the Soos Creek River Basin, a sub-basin of Soos Creek. The total site of 1.1 acres consists of a single family residence, a guest house and a mechanical shed. The project is to remodel the existing Mechanical Shed to be used as a Church with a seating capacity for 70 people and to expand the existing parking area to have a total of 19 parking stalls including 1 ADA parking. The church will conduct Sunday services and occasional Saturday evening services or church activities at this site for the Indian Orthodox Christian community in and around Renton. Currently, the church has 20 family memberships and serving a totai of about 50 people. The proposed site is a 1.1 acre parcel located in Renton. THE EAST HALF OF TRACT 1 IN BLOCK 1 OF NORTHWESTERN GARDEN TRACTS, DIVISION NO. 4, AS PER PLAT RECORDED IN VOLUME 47 OF PLATS, PAGE 74, RECORDS OF KING COUNTY AUDITOR; SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON. The site is zoned R-4. (Figure 1: Vicinity Map, ', Figure 2: Site Location) , Existing Site conditions: The site generally slopes from west to east with I! slopes from 1 to 2 percent. Along both the west and south sides of the site, the !, topography is parallel with the site which eliminates any off-site water from the ', west or south from entering the site. (Figure 3: Topographic map} I A level 1 drainage analysis was performed for the site to determine any pre- �, existing drainage problems downstream. � The onsite soils have been identified as Alderwood gravelly sandy loam{AgB, according to SCS soil survey for King County, which is Type "C" in SCS hydrologic soil groups. The offsite soil has been identified as Alderwood gravelly sandy loam (AgC). (Figure 4: Soils Map) LEVEL 1 DOWNSTREAM ANALYSIS 1 REVIEW OF AVAILABLE INFORMATION ON STUDY AREA The following is a description of the resources that were reviewed for the preparation of this Level 1 Drainage study: A. Basin Recognizance summary reports: Enclosed within are downstream and upstream basin area map which clearly define the flow pass and the drainage basins related to this project: See (Figure 5: "Downstream Analysis Map") a. Evidence of Existinp and Predicted Problems Lack of capacity of constrictions in the existing drainage system On site: No evidence of any problem Off site: Ditch sections: None noted Channel section: None noted 12 inch culverts: 3 24 inch culvert: None b. Overtopping, Scouring, Bank, Sloughing of Sedimentation On site: No-evidence of any problem Off site: - Ditch sections: None noted Channel section: None noted 12 inch culverts: 3 24 inch culvert: None c. Flooding, etc. None noted d. Significant Destruction of Aquatic Habitat or Organisms None noted B. Adopted Basin Plans: Soos Creek Basin Plan sub-basin of the Soos Creek (See appendix A: "K.C. Flow Control Application Map) i C. Critical Drainage Map : The site is located with-in a "Level 1 Flow Control Area" as indicated by the King County Drainage Manual. (See Appendix A: "K.C. Flow Control Application Map) D. Floodplain/ Floodway (FEMA maps): The project is not located within a floodplain of a stream as determined by the FEMA maps. E. Other off—site analysis reports: None noted F. Sensitive Area: Each one of the sensitive area folio associated with this area was reviewed. LEVEL 1 DOWNSTREAM ANALYSIS 2 I Sensitive Areas Folio (See fiqures 6-9) Wetlands Property: Property not affected 100-Year floodplain and streams: Property not affected Erosion Hazard Areas: Property not affected Landslide Hazard Areas: Property not affected Seismic Hazard Areas: Property not affected G. SWM Division Drainage Investigation Probiem Records: An investigation in to King County SWM records shows that there appear to be no applicable drainage problems within j/a mile downstream of the site. Of the 59 complaints listed within one mile of the site, none of them were within the downstream area of the site. Most of these complaints dealt with issues other than flooding or capacity problems. See Appendix A: KC Drainage investigation Problems. H. Soils Survey: Attached with this report is a soils exhibit map for the subject area. The on site soils has been identified as Alderwood gravelly sandy loam {Figure 4 : Soils Map) I. Wetlands Inventory Maps: There are no wetlands on or near this site J. Road Drainage Prablems: A check with the maintenance department showed no drainage problems along 188�' Street. K. Migrating river studies: There are no rivers or streams near this site. L. Downstream Table: See Appendix A: "Downstream Table" for drainage components table. FIELD INSPECTION AND DESCRIPTION OF DRAINAGE SYSTEM WITH EXISTING AND PREDICTED PROBLEMS included in the report is a narrative of the field inspection. The level 1 analysis and the filed inspection of the property and the surrounding area were performed on July 15�' 2008. Weather at the time of inspection was sunny. The total distance covered was about 3/4 mile downstream. (Refer to Figure 5 Downstream Analysis Map) A. UPSTREAM DRAINAGE ANALYSIS A review of the site showed that there is no off site runoff flowing onto the site. Along SE 188�' Street and 118th Ave SE, access road has V-ditch with driveway culverts to intercept the runoff from the adjacent properties. The new development on the south side of the property has a drainage system to collect the runoff. B. ON-SITE DRAINAGE CONSIDERATIONS The property is mostly flat, but a slight slope can be noticed to the north east side of the property. One drainage system a V-Ditch on the property leaves the site to LEVEL 1 DOWNSTREAM ANALYSIS 3 the V-Ditch along the east side of the access road. The existing vegetation is mostly grass lawn and landscaping with small trees. 3 cedar trees are along the east side of the boundary line. There is no wetland in the area. C. DOWNSTREAM DRAINAGE ANALYSIS 1. Grass lined V-Ditch & Culverts Drainage leaves the site by a V-ditch and enters the V-ditch along the east side of the access road (118th Ave SE) via a 12" culvert. So the natural point of discharge for the site is the lower SE side of the property. The drainage flows north along this V-ditch about 60 ft and joins the V-ditch along the south side of the SE188th st. It flows another 120 ft and cross the street via 12" diameter culvert and joins the seasonal stream. The ditch sections are vegetated and show no sign of problem, overtopping, capacity, erosion or scouring along this section. 2. The seasonal stream The seasonal stream runs from the north side of the SE 188th street and follows the property lines of a number of parcels and finally joins Soos � Creek. 3. Soos Creek The seasonal stream discharges in to the Soos Creek. The creek is deep and wide with flat bottom with side slopes. It is heavily vegetated with slopes of approximately 1% and flows south-east through heavy residential areas. The Soos Creek appeared to have adequate capacity. There was no indication of problems including overtopping, capacity, erosion or scouring along this section. LEVEL 1 DOVVNSTREAM ANALYSIS 4 CONCLUSION . The total distance covered was about a mile in the upstream and downstream analysis. This Level 1 analysis indicates that there appears to be no drainage problems downstrearn. The proposed internal modification of the shed is not adding any new impervious area and will have no impact on downstream conditions. The 0.15 acre of graveled parking surface is less than 10% of the total drainage area of 400 acres. The existing V-ditch along the side of the property can serve as the Level 1 flow control and will mitigate any impact the proposed development may have on off- site runoff. 1 LEVEL 1 DOWNSTREAM ANALYSIS 5 N i��.�.'�NMQST_ \• V �L� s n �� :��-� ' =� ,`, �.,`7'J Irl ' _�� _ ��-- ��L �q„�Cau�ty�� i ,;�r�,�� ; ��;"�� r-- ----- � ,,j � �-�-`li_��_;r^" j�r�; �� Parcel Mep and Data ' s J� ii i�%�� t ,?�Z�s' � �A-i I i'.__i 4r _ . � c.�--`�ZlI .?��_ I �c�._ Q �, Mnio�w ��ai�r ' �� ,/ �. `� �,� �'' «auo,wo amooin _.. �`�_I�� ! `t�!�� «a�cm� �u moi / �f r �� h� I i /�� r;_'� �I i� � �i�, t� � � �i- I , LJ a �� '� �— �f/� _ � �� r=,�f S'��T � V li4 �} �iw�oos�+rimnw �+nraraa , � C � �' ��_Jr�'�; :� Re n L�� , � t ,—, ' r�now -, �- y �� 9_S � ( ;J��-�� - �=- �u�a°°a "'rm"' . N! � �- IP �! � t «rmu �. 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': .. _ _ 758R '-�, � ��nd !+1 Cot�nty�urrulary 3tneeis FIGURE 5 . ` �Qntours{9�tfft�Ight) s. r`' t�,,,�y 8reitte $t�t;es 6'.f : a� # '� pOWNSTREAM MAP Nighway� �,ocat �j IttCorporatec!ArB� � faices artd L.��e�f�vers �,'" S#ream3 GOK#NENTB:DOWNSTREANf MAP Th9 Tniomiatlon incqitletl on tl�is rnap Afl9'bBen r,ohtpBed by Ianp CouMy staft trom e vari9ty ot sotitcas and b sWjeCl M chenpe wdttout 1iWiC8:IClnp County rtmlies norraprasentetiaw or we�rentles,e�ress or.implled ps to.accuruy,compleeerress.'timelhe�s,or M1yl+ts to Uie use d such kNortnaUon. This dxumeM b rot iMendad for use es e suvsy prod�wi.iqnq Counly shall not be lieble for any 9enera6 special.Indrect k+dde�.a coreequentlel s ' dartages indudinp,b�t not 6mited ro.lost revenues w lost profits resuMing!ran fhe uee or misuse of the intwmalion contah590 on 1Na mep.My sale d. �� Kin.g County. this�p or inlamation on fh�mep is praHbYed ezcept Oy wAtten pertrissbn of K�ng Courny. Date:BJtSl2008 Source:King Gbunty iMAP•Stortmvater(Mlp�l/www.melrokc.govlGlSIiMAP} Map Output Page 1 of 1 �Kmg Co�fiy iMAP �. ; f ;�,_ � `: --� � �4 1 �� '� � f• .�..�; -�.�-��'� � �� -�~f f--� �� }� f�� W1 �Sf$fi11 ' �� '�� '� 1 � �� 4..y L+ � � ,�{f 't-�1 �' � � ��j f � � �j � � �� r f, �,..(f""?�- •�� , �� /' `�r � , 1 � � � � S �� c:,, � �� 1 f�� d� � � ,. � '�'s'''r�( j --,,�n`1� � b �� t � .� . �� ; -� � ��.�_ p� �� . re: � q r`'� �� f� , i; � { J �� ; � �� d `� � o t3 1CI2004K«qCoaetY � � � �p ,•�� ..:� :- 533lt Q�" .� - --- _ _._ _ _ --- . ___ -- — —_ - --- , LY�BII� � � Coun3y Boundary .l ancotporaErd Area ff Sl�vams �T x Mountain Peaks $tneta Parzela Confotxs{Sft dsAt� i• H�,,,,� ,�.:,. wf 104JOk1AE0 �+� !` ,/ ayw Lntal �Y Hiphways � Lalcea and Larga Rivers - - The information inGuded on this map has been compi[ed by King County staff from a variety of sources and is subject to change withou4 notice.King County makes no representations or warranties,express or implied,as to accuracy,completeness,timeliness,or rights to the use of such information.King County shall not be fiab�e for any general,special,ihdirect,incidental,or consequential damages including,but not limited to,lost revenues or lost profits resulting from the use or misuse of the information contained on this map.Any sale of this map or information on this map is prohibited except by written permission of King County. Date:3-2fi-2007 Source:King County iMAP-Property information (http:lMrww.metrokc.gov/GIS/iMAP) FIGURE 6 STREAMS MAP http://w�vw5.metrokc.gov/seivlet/com.esri.esrimap.Esrimap?ServiceName=overvie��&ClientVersion... 3/26/2007 Map Output Page 1 of 1 ��rttlgGo�ty _ _ iMAP ,, ;.,_ ; . _ ,� . - f �: , �i � � ; �f � �. �J �{ a!i Q,O .SE_7T6iM ST�-,��_:_ _, , - _. �• � r StN�15T'ST.,_, q = �'— � � ._ _ S� _Tukwil �I �' �' � ° � ' � �� :, ,� � ;� �i ._ �; ;� o ,� � =�� ;� '� �i 3.�'' � �.; � ��< < i� �� F� �' ', 5 g� ��„ Re ;� _; "�' '� ,,. � ;: , �; ;, � , ,;; ;: '� i' �! � � p �� , � � � � � ,i �, � 1 � E� � .��.__ + t: •--- - SE-19LJD.SF------ � r------- -- ----__.. i` � �-- - -------�_;�--.o-�--_._. ;i_ �i i -'-_— =S_t96 �; I _ TM-ST: �.' i � �� ' ` f �'{ � '� `�' i f , ?j w� " i I � � II .- ; Pa»ther taks =� � J;� � �; �. _ :, � �; � �' � � take Yaungs . Kent '�' � �f� � `;'��" 'J+ . : � -----�- - ' ---_.._.,;`,.__.�..—�-�?H_s►---..._ i _.----. .:--_�---='I------ �-- ____-_-_ i .,� �i ' I --:_-S272TM_S.t__.S212TH.ST - ry j� �I �� f---- � --ir_._.,___. i f" i) !j � _ � :j � FI r. 'A� �� __.._..._--_, i I� 1 ° �I I �' t $.218TH. � WI Il � 1 t) =I „�,P=--._`_`_ a�! �� I� y �I �� yy�� i � �p� �. ��1 p ,II � �� I� . i f � � j�` �� a� • bl�� ^ <f.�-�.—.=-===T-_- --�� -�' .;_ � •:�� :� . .... . • TH ST-.._--g� i� ' Q • G _= i"'_`.__`---- - r- � I 8 �+i .. _ g T.N 5T �� +J! ' lf'-�----- - .�' .- �! ._ ��•'...-. I -� 1 dP �i' !� I� } � I � ti 0 L 6 � Ic�2m K:q co�rry : rJ � I� �- 4761 tt 1 i�. . B 1 _ _ _ __ _ — --.. _ . _- -- ---- - _ _ - _ ---— — -- - ---_ Lagond ` ( Courdr$ax�dary � M�p�w�a�r SAO Erosiort Fli�►waya ;�;' �c.or i � Incorporwd Ana � �� Lakas atW Lsrga Rivero �� _. . _ .. — - - -_.._... _..-- -- _ _----- - . _.. . ._ _. The information included on this map has been compiled by King County staff from a variery of sources and is subject to change without notice.King County makes no representations or warranties,express or implied,as to accuracy,completeness,timeliness,or rights to the use of such information.King County shall not be liable for any general,special,indirect,incidental,or consequential damages including,but not limited to,lost revenues or lost profits resulting from the use or misuse of the information contained on this map.Any sale of this map or information on this map is prohibited except by written pertnission of King County. Date:3-13-2007 Source:King County iMAP-Sensitive Areas (httpJ/www.metrokc.gov/GISIMAP) FIGURE 7 EROSION HAZARD AREAS MAP http://www5.metrokc.gov/servledcom.esri.esrimap.Esrimap?ServiceName=overview&ClientVersion... 3/13/2fl07 Map Output Page 1 of 1 �K��Y _ iMAP f . . i , ;� ' m( �O ' SE_t)stH 5t_:�. .:_ ",�� ' � SW.415r Si .. O `i - _�_.._ ,.'s�� _ _Tv i I �i ;' �'�_0,,,/^•g G ,I !i �,' ;� � _�, , : �' <�i i� �!' � �� ,; , i I :� ;. �yi �i �`:�" „ g� , �= � Rent �n � '` x� :�� ;; ,� �' ii ~i � ~ � ��.' �i �i ! e I� � � ,; �i � �s iE :� I� r' s �f li �; il it , � �:._.-_. ��._.Y__ -._-"—.- - f= �. --._ ._..._.._-- -- ----- D ST..._..__._.. F` , e �;— ._�_ �.�.��.___�_..�--�---------- - ------'- : . (i �� ;� O '�V— �� -._ �_.__ : :S_l46Id_Si' �+ ; p 'i � i -- w �y , il �r ° :(i u��° ll j� � . 'sl ;i f � �' .° ji �. � i,�anthet�ake =� +1� 'i �I � N i r ;: '�; j - i �� { �u� j'• : _-='� . i, Lake Youngs ; . Kent . r a:;' } . �' " __ �� . I� _�::-_�::._::�'--=:c_ac-_-:,I.�r_c.-_rc-.._Lc--c,..-c.._--'3E208TH S?.—.-._--..._.. 'j � (� _ _,__,_... _.__ s2t7TN.Sr . �ry� �J • �! � ' , I; � _ 9212iH.ST _.�Y ` ij S �� !— _._IF._.� q v �3 , � � t it i� • i{ I. ;I y' +�' -- - - -- �l ' i , � ----"�- .. 'k '! �� s.Z�S�H. h� I� � <' �L� �r==_ ` �f ''�: � !I _; *'; � f�; i: ;I �, � � �� K � �'� �i �' ' ' �� =j �� I ;; y� �� '� ��: •:�� 70"C� n ?E . .� ___ - i �` � _l <E�' ..-� 1l..__se uarH_st_ _.: I I22BT.H_ST D � �i �J '�Ji o -R'�f--. _�.' I- � ! �f 'i il ` !� � � I� � � a � i ;I k e . ICJ�ooaK.QC�y .J � '� �� 8 - - �781ft��' � � .. _ _ _ _ . ._ ._ - -- - - .._ _- - - -- - - -- _. . . _. . __ ._ __ L�gond i r co��y sa,�ry � M;�.�,, � s�w�„asi�a� Ht9hrraYs :" '�'�.�s ff JnCorporatad Area �-O� S�ets � L.akes and La�p RivArs {corN) - _ _ --- - __ ..__ _ - - ... . _- ___ __- ._ _. _ - - _ . . _ . The information included on this map has been compiled by fGng County stafF from a variety of sources and is subject to change without notice.King County makes no representations or warranties,express or implied,as to accuracy,completeness,timeliness,or rights to the use of such information.IGng County shal7 not be liable for any generai,speciai,indirect,incidental,or consequential damages induding,but rwt limited to,lost revenues or lost profits resulting from the use or misuse of the infortnation contained on this map.Any sale of this map or information on this map is prohibftecf except by written permission of King County. Date:3-13-2007 Source:King County iMAP-Sensitive Areas (http:/lwww.metrokc.gov/G1S/iMAP) FIGURE 8 LANDSLIDE HA7ARD AREAS MAP http://www5.metroke.gov/servleticom.esr�.esrimap.Esrimap?ServiceName=oven•iew&ClientV ersion... 3/13/2007 Map Output Page 1 of 1 ��S�y iMAP �' � + � ' , ,� �., ��-`_ �'`1 ' �� ,� ' _ i. � ,._swa,sr_sT �' a` ¢��_-�s�-,�srH r._ � ,� �� S � '__� � �t ii -� ' � �h __f� _� kw,i� �--- ,, ,� .•1 ;! ;I �� f . ��,f, �'� ` �,� �i � �j •�� ,; �� , I �i ��. 4 - � "'� Ren ' z� �;`� �� ;� - � � � �: � m: . �; r ,�� '; ti• j� -' • ii , ; ' + �' �i � a - - I� �; I I �� i �-_- _ _----- _ _..---- —---._.___..sE.1v2Ma si_.._.�.__. � ' _ -._. __ � h � � _ _.__..-�-----��-- -----� - ----.i---___. _-�I - �s_,� �' � � ' -:� _- _ r�,.st . �: �, .—, _ �l� � � �+ 3`! � 'fi �i 1 o, � � , �j '�` 'E � ;' ' ;I �I �j � ,+Pancher take ii.. '� �i � 1E �! ..,, � � �� vxr �_� I , ;I take Youngs I�ent '�' r , ..,.� �' � � ,� `�"� �-�� , �—;� _�.�� .�T � � 1, �_" _�--� ' �I I` �;.._ �,I_ ��I �i .�L�-s.2iztr�_s� -�`� li �; �I, �� - —i�-- �; ;� ' d = '; �; —_ ._.-. !; �� ,ii' ��, � �� i . I 6 �,arH_ h e� � �� 6 �I h. I� M� ti �� d r� t � (� ! � �� , I b '. � �I � ° Ir =i �'+� =,� '� � �• ?� ��; �� - �'^Q�-•. _ --�.:h .��.��-.�.-_—SE.u1[H ST_= ' � � .ST ♦ i� � J r � qn.�-- --_- 228�T i �^ �,�+ r-_—_.,__ �_ _ i �7`' I < �'� �I ' ` � � _ i `. 'i � a � � . 0 � {CiaooeK:`pce.ry ;AF� ,�,� jj� _ - 4781ft�t .. . __ _ -__ . _ - . __ _ _ l.eg�nd � 1 ��Y��{Y SAO Stroam �% Strvams hMghways �/ �y�� 190 Ysar Floo�plain 7 � JneorporafedAna �/ Crs21�..� � SAOIIWtland Str��ts � c�2a.r„an+a �+ ,uo,,,.,,�, �n/ c+�� ;�,'- �n.:r. u.a�..r.a � i,,d � Lakes and Lerge Rivera The infortnation included on this map has been compiled by King County staff from a variety of sources and is subject to cnange without notice.King County makes no representations or warranfies,express or implied,as to accuracy,completeness,timeliness,or rights to the use of such information.K+ng Counry shall not be liable for any general,special,indirect,incidental,or consequendal damages including,but not limited to,lost revenues or lost profits resulting from the use or misuse of the infortnation contained on this map.Any sale of this map or information on this map is prohibited except by written permission of King County. Date:3-13-2007 Source:King County iMAP-Sensitive Areas (http:llwww.metrokc.govlGlSIiMAP) FIGURE 9 100 YEAT FLOOD PLAIN& R'ETLAND MAP i http:/h�ww5.metrokc.gov/servleticom.esri.esrimap.Esrimap?ServiceName=overview&ClientV ersion... 3/l 3/2007 Map Output Page 1 of 1 ��y - iMAP '�Y,; � ', y _ �. _ �' � •� �' -�� .- '' �� ' ; �. �o ,;5E-1T6TM S�-��-�. _ - _ , swa�srsr l , ;y sf� __T�ukwila ;1...._ �: ,+, ��,, � ;, ,; �j; - :, ;; , - -�r �; �� 2'�;'��,� �'' 6 �j �� ai w; z li �I �• �j �;- Rent � _� �' ��:: , � �'- '; t� �: ~� ., ,t �i � iii �� i; i: t� 7� � :: i� i j :; i ._:<---.'L_:�-- _ - __-.:3E 1�ID 5t_. ,. .� �. . ; ty . ..._. .. . . I_ .. ._ i-. ... . _ I .. _.. j' . � I .. �I _5:S96TH-ST� lYt� �i w'i � I !I +"i ° p uJ�� . i; !Y !j � i: j ( � >I , 11 � panther Lake `� �i I� ` _� � � � f 'I ,�! � � '�+ � Lake Yoangs Kent �' � a� `i �' - �' � tr i • Ii ~�� _._.._._..-- -�I �IL+_----..---= —_N�Sf-.:.._�._ �� ----._z�_..�._.:_:-i�=— _._____-�s�.�oer -=-:_=s.2urH_ss----s.�i2tH.sr ._ ti E � i !� ,:.-.-_�f ---�r------�i,--- y �I ! i� =t �u�' �I —�----._ f j � f � H: �{ ° � yS <i S21BTH. '�€ vW � � � =I t=-i q�— `t tlll I,' . •.; � ,� � �I � m� �j 6 ��` � . �j i - �� :l' � a . I, �: �i 47 � ' � n --- � . . � �? '.�j � ;-• „� - - - - __ ' _-_._:_-_....?LOTH-ST--:---- .: [-:"`' ,; ,. p , �� _ • - . - ,: � —�_.._. ... �: __ a � _ �� S 229Tk1 IST �_ � -' I� - �' " 1�--�---- i- `� � �y I —�i;-- � j � �I �i �; s � �� '� a F � � � �� I .� . �C)200!I�hq Cowty } �i T81 n��„ � _ . - _ - - . . - LB�6fl{� �_� Courdy Boundary � Hip��w�r � SAO Soismic Iiig�,N.�ys � ,w.+r. � 1nca�paraEed J�rwa 1 � $$'9�Tb O �IiYS iIN3�2IgY fZ1Y6fE . �C�� _ . - . ' -- - , - . . . _ ... . .. - -�-�'---_.... _ . .. . . .._ ..._. _ _ .._ . . _ . . . .---� ... The information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice.King County makes no representations or warranties,express or implied,as to accuracy,completeness,timeliness,or rights to the use of such infortnation.King Counry shall not be liable for any general,special,indirect,incidental,or consequential damages including,but not limited to,lost revenues or lost profits resulting from ; the use or misuse of the information contained on this map.My sale of this map or information on this map is prohibited except by written pertnission of King County. Date:3-13-2007 Source:King County iMAP-Sensitive Areas (nttp:lhvww.metrokc.govlGlSliMAP) FIGURE 10 SEISMIC HAZARD AREAS MAP http:/1www5.metrokc.gov/servlet�com.esri.esrimap.Esrimap?ServiceName=overview&ClientV ersion... 3/13/2007 � �d ''d � G � �C � TABLE 1 DOWNSTREAM TABLE SURFACE WATER DESIGN MANUAL, CORE REQUIREMENT#2 DOWNSTREAM PATH BASIN: SOOS CREEK � ...._,,_..._.. _.._ � � ,��' p �$. A .. �x�Sting Prnbfer��s, . a : se�vation.<(�i�ield inspe�r�tS��^� .",`.'. Syrrjbo! Drainage' ,,� x Drainay�Com pnenC : lo e DistanGe Po entiaf Problemw Qb �� Companont 1'yp�� R, Des�r►p�fon From�t�r.; ��r°�� . ;,� resburce reviewer;orYesitt�nC.• � , ,, , . ��i' Nc'�iTllB ��_.S.'1Z0 iwiu �i !i�,�� QISC�l�f 8"�.�, � �� , � � � � , �"� '� , . � ��;� Constructions, �ur�dc,r�� acf , ndir, , �ibut� are,likoiihood��of ��i�l�. � i� : i �., , °�r� I,I ; ii i i L i' i I � ��. �� Q �� ry � . 4t7t.OV91fI0W � ,��; ! � T pe:,shc,eh �� " �� ,;;, �;�u� �� - �' �� '�� ... , ��;�;�'� ov�rtopping, flooding� �habitat ��or organism pathways,�►iqtonii2�!imp�c�, � � '� ;�� sy' ale, � � e�;� �� ,�cauring � bank�� see ' ��r',41,�an�nel,p pe. drrunage basin;vegetatiop,cover,depU1,ty�ig o �, o destructi n li7rig. "�� "�� m� ��, .. , .�, , � 1/�}.-1�3 0 tt., �,�y � � '' ",I�^�+��'��j � t8(, �Of @i@IISIUV@ Qf9A.VQ�1101� � i i.: +�fli in ,� iir�: . . , _ �,��;�t lsm r �41 p pqCl� u �{fIQ1116 I� - �p+{ a'`�� i9��'�g� i� ��56(�IR13��II4f1r:7fICISIOII�01f1Bf QfOS10Ii t./� � � e'r �.' r , _ , �� y �II J�I�! k SUt��lC@x1C68 .I�e '.m i I �.. �I�e ni�r��71J ��F. ,ka;- : i� !r . � � '" � �,� ��. ' , .' �,�� i �� , .�„_;� i� �� u��J�l� � �d��r..� i� �,� � �� _r';;��h,..� jI �:�4� A Sheet Flow Lawn, Gravel < 1% 0' None observed None Anticipated None - Refer to Site Plan, Fi ure 2 B V-DITCH On Site Ditch �2% 0' None Observed None Anticipated None - Refer to Site Plan, Fi ure 2 C V-DITCH Alon Access Road 118th Ave SE �2% 0-120' None Observed None Anticipated None - Refer to Site Plan, Fi ure 2 D 12" CMP Alon Access Road 118th Ave SE -2% �120' None Observed None Anticipated None- Refer to Site Plan, Fi ure 2 E V-DITCH Alon SE 188th St �2% 120-200' None Observed None Anticipated None - Refer to Site Plan, Fi ure 2 F 12' CMP Drainage Pipe across D�ive way -2% -17Q' None Observed None Antici ated None- Refer to Site Plan, Fi ure 2 G 12" CMP Draina e Pipe across Se 188th St �2% 200'-230' None Observed None Anticipated None - Refer to Site Plan, Figure 2 None - Refer to Downstream Map, Figure 5. It did not appear to be any H Seasonal stream Seasonal stream with ve etation 7-15% 23Q'-3000' None Observed None Anticipated obstruction or histo of erosion I Soos Creek Stream dischar es to the creek NA -3000' None Observed None Anticipated Kt`IG)' GOK1?�/ ✓ Flow Control Applications Map � . _ ' 155A 5�.::� �, 1 ;��'� 4 . t ��o '�� _ . J' ��f'. , ' - � . y : r � �__�. �. ��' ,fc �� , � (J ... ., . � F� �; -d��: r �-� '.-.� ��, e 1 , s 4 '../:• ReNrax: _ �'� g,�-,� � `�'�� `�t -�¢�;, . ,�-;`�'� �.�� . ._ €•��' _''��.r�- v��e4 -^, �'��_ _ �- ` � ?f � � ._ .Y 1 _ � k+� fi �� ¢ F4; ��_- r� _ � . �\ 4. • f T S - i� • - � f�5 �S } V � �._ ��._ .i� �"X n �4 .. .� _ ,� � .; �� '� a'" '.��. �� `k; Y �� :ro-z �� v F j � ' a �t � �� ,� � 3,��-t�-��t � u.;3F' +ts � �-� ,- ;;,��`��-. � ar'�- c�'1, � 1 -�` � �� ; �, i� f� '' �Y" `' `�; ;�; - �� -��_�`` � 1_ a ��-. ;�� ' ��'_- - ��V� �. i , �' �� ,� Ij i �. � _ - �' ALIEY �� .' �' h . J r y �� . •' �� COYINGTv^4 _ . J ��. _ �, � � `� �.`_ y� ♦ _� ��. `e i*_ l. v`�;-_ � _ y-s+ �_- � �' — � BLACK � .. IAMQ�M. � -'��•� . - -� ; 1 .�'' _ - `� ``--� �. .�ea�. ..` ' � � � +,�\f�� '�' ` ., �� `\ '�� 3: I e � � �� _'. _ y y...r �, N Z Y �_> Y�� ; �.� � <��.�, PIERCE COUIVTY � ��; �� , � - -'.-�-' �.F-.� \"�.+.' �. �� Basin 8o�odary(thtker line des�gnates Bo�ic How CoMnl/uea� areas wifh published Bosin Plansj Cons�rvaiim fbw Conhol Arsas '—'—•— Urban Growih Area Boundary Mojw Re�eiving Wo�en �____� _ F�oOd pm�n�FIOw ConMo�kpo+ Sae Care Reqairemenl hivnber 3 i__.__i IrCofPofa�ed Area �qYm lob,leb D.�.., �irecl Dischorpe Crile�ia Nymc lnt�.md Patiher luk�) � Foresr Production Zone Area �uaa e�.. �s�,,,wmm.c.� 3.So.�nmiJi Arvr � lud�a Nanh.5�+�,fi. ].WIiWS�ihqYwr eMAYEA� d.Sw1 Fok S4ybni�h Iivar e WeN Sw�d 5.?aA Wwr D.ld.Wo.h:ng�o� bC n/Duro.�nl�hRl+� l0.ld�5eml.wmi�n �KI111J COUflhI s.ta.-nM e a,a d.s..sa i e DepaKment of Natu2t Resources and Parks Water and Wnd Resources Dlvfsion 0 2 4 MJxs M iN�r n ef Mis map i� ailo66e on Fu D""'�� S�am�.a�er Mop Sel.Kin3 Couny iMaP � ., �- ..<�<.�.,-.i._1, �n.�..N................,.....<........_.�..,y...., Fttp�/:w..w.narro,ee3c.�/g:iimaopona�/iMA7_min.hrm � raix,.:�.r.+„e.�i,: Klnp Cou�y Wa�er ani La�l Resw�ces I�visNn-Dr�aina�e Services Sectim Printed: 08/15/2008 12:37:10 PM I�bet� Tne Typ�o�Probleoi llddre=s ot Probfes C�oeoents Tbns P� 1975-0076 C FLDG RD WY/FLD'D/112TH AVE SE/SE 186TH 686E2 1979-0047 C 11403 SE 204TH ST SOIL BULLDOZED/PANTHER LK AREA 686E2 1986-1166 C FLDG 11202 SE 186TH ST STORM OVERFLOW 686E2 1986-1185 C FLDG 11202 SE 186TH ST SEE:86-1166 BRYANT, BILL 686E2 1986-1190 C FLDG 11001 SE 186TH ST BASEMENT GETTING WATER 686E2 1987-0334 C DRNG 11202 SE 186TH ST CULVERTS BLOCKED 86-1166,1185 686E2 1987-0471 C FLDG 11202 SE 186TH ST SPRING GLEN 86-1166,1185 686E2 1987-0545 C DRNG 18627 109TH AVE SE INADEQUATE SYSTEM 686E2 1989-0650 C DRNG 18631 111TH PL SE S/W DRNG AND DAMAGE 686E2 1989-0700 X DRNG 18631 111TH PL SE WATER ON SIDEWALK/89-0650 FRITON 686E2 1990-0075 C DRNG 11254 SE 186TH ST PLUGGED CULVERT/STORM 686E2 1990-0141 C FLDG 18400 112TH AVE SE POND OVERFLOW/90- 686E2 1990-0149 C FLDG 11202 SE 186TH ST R/D POND OVERFLOW/ROBERT/STORM 686E2 1990-0231 C DRNG 18425 112TH AVE SE R/D POND OVERFLOW/STORM 90- 686E2 1990-0235 C FLDG 11202 SE 186TH ST WATER IN BASEMENT/STORM/90- 686E2 1990-0274 C FLDG 11022 SE 184TH PL R/D POND FLOODED/STORM fi86E2 1990-0342 C FLDG 11202 SE 186TH ST R/D POND/ROBERT/STORM EVENT 686E2 1990-0372 X DRNG 11202 SE 186TH ST R/D PONDS OVERFLOW9/90- 686E2 1990-0709 CL FLDG 18504 112TH AVE SE CL#12959 SEE CL#13224 DUE 686E2 1990-0884 C DRNG 18427 112TH AVE SE R/D POND DRAINAGE/STORM 686E2 1990-1061 CL FLDG 11202 SE 186TH ST CL#13224 SEE CL#12959 GARAGE 686E2 1990-1186 CL FLDG 11044 SE 186TH ST MEMO/RUDDELLS STUDY TO PA 686E2 1990-1212 C DITCH 11044 SE 186TH ST RD/SIDE DITCH-FILU90-1186 686E2 1990-1212 E FILUDIT 11044 SE 186TH ST WILL START WORK 09/20 CHK ON 09/30l93 686E2 1990-1212 ER FILUDIT 11044 SE 186TH ST RUDELLS STUDY 686E2 1990-1226 C DRNG 18615 107TH AVE SE FLOODED BASEMENT/BAD ROADWAY 68fiE2 1990-1445 C DRNG 18427 112TH AVE SE R/D POND OVERFLOWING TO STUDY/91- 686E2 1990-1530 SR FLDG 18427 112TH AVE SE STORM EVENT 686E2 1990-1531 SR FLDG 18427 112TH AVE SE STORM EVENT NOT NDAP 686E2 1991-0150 C DRNG 18624 112TH AVE SE 686E2 1991-0150 SR DRNG 18624 112TH AVE SE NOT NDAP 686E2 1991-0196 C FLDG 18425 112TH AVE SE 686E2 1991-0196 SR FLDG 16425 112TH AVE SE NOT NDAP 686E2 1991-0253 C DRNG 11254 SE 186TH ST 686E2 1991-0438 S1 SPK TO FINISH S1 3/4-S2 TO'92 CON 686E2 1991-06fi7 CL DRNG 18427 112TH AVE SE SEE 91-0438 SEE RUDDELLS 686E2 1991-0837 C DAMAGEC 19001 116TH AVE SE C/B BELOW GRADE 686E2 1991-1095 C FLDG 11200 SE 186TH ST RUDDELL POND OVERFLOW 686E2 1991-1132 C DRAINAGE 19006 116TH AVE SE INFO TO PMBD 686E2 1991-1149 X FLDG R/D 11200 SE 184TH ST CCF#SWM-1031 R/D POND CAPICITY 686E2 1994-0038 C PONDING 11430 SE 192ND ST POSS GRADING/FILLING VIOLATION 686E2 1996-0805 C DRNG 19400 120TH AVE SE DRAINGE FLOW QUESTION DEVELOP INF0686E2 , 1996-1564 C DRNG 18908 113TH WAY SE PRIVATE PROPERTY IMPACT TO PVT 686E2 1997-1123 C GRADING 18908 113TH WAY SE PVT PROP IMPACT NO DRNG INSTALLED 686E2 1997-1123 R GRADING 18908 113TH WAY SE PVT PROP IMPACT NO DRNG INSTALLED 686E2 1998-0019 C DRAINAGE 19016 116TH AVE SE NEW GRAVEL RD POSSIBLE PVT PROP 686E2 1998-0058 C DRAINAGE 18820 116TH AVE SE SFR CONST IMPACTING ADJACENT 686E2 1999-0306 C DRAINAGE 11618 SE 188TH ST ADJACENT PROP PAVED 2500 SQ FT 686E2 2000-0572 C DDM ACROS 19029 120TH AVE SE APPARENT FILLING OF ROADSIDE 686E2 2000-0572 R DDM ACROS 19029 120TH AVE SE APPARENT FILLING OF ROADSIDE 686E2 2002-0553 C DTA 19013 114TH CT SE CONCERN REGARDING POSSIBLE 686E2 2003-0847 C DDM 19230 116TH AVE SE APPARENT OBSTRUCTION OF OFFSITE 686E2 2003-0847 NDA- DDM 19230 116TH AVE SE APPARENT OBSTRUCTION OF OFFSITE 686E2 2003-0847 R DDM 19230 118TH AVE SE APPARENT OBSTRUCTION OF OFFSITE 686E2 Nu� Type Type o�Problem Adi�ss of Pro�ei Ca�ents Tbros P�e � 2005-0428 C RFN 19128 113TH WY SE Water flows across sidewalk from water 686E2 2005-0682 FCR MNM 19133 113TH WY SE Referral from KC Health.Rats irt D91898. 686E2 2006-0299 C RFN 18621 116TH AVE SE Broken drainage pipe � Benson Hill Elem 686E2 2006-0450 C DTA 18621 116TH AVE SE School const causing water seepage into 686E2 2007-0221 C DTA 19128 113TH WY SE Request permission to remove veg from 686E2 I Page 2 cf 2 St. Thomas Orthodox Church A ' �'` ` �.1tCZ ��!"�'�i r��' T!R -,�� . .. 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Thomas Orthodox Church � t �� „ 7IR -�.�� 1`il�C� �,�.��l ��' � Appendix B — Drainage Design Pre-developed Sub-basin Map B-1 Developed Sub-basin Map B-2 St. Thomas Orthodox Church �� A ' T1R !sl---\''1`ll tC� ��1�('il�� r� B-1 Pre-developed Sub-basin Map �I �I I _ PRE-DEVELOPED SUB-BASIN j = z U a � x m I � �� m � �...9�I� W.I SCALE 1' = 30 Ff_ O � U - �� -� `'� � uxn av urwamrurwr w us m-r !� 2 p � �� a � � G � ' J W I Q '� � � � � N01'21'44"F 12'CONC O W — - _ Z6_79 � I 6.S�F m 1.1X � a � �P 1 -"„ i' �i I . . . ... .. �� /� �� / _-- 12"�CMP � .. i � 18.SLF� -0.12 50-�su�-�'�� EXISTING � 6HOM5� ' ASl9HAL1 I � W�M I � 7.5805F� . �y I�.l..•I .. DRNEWAv> � I �y g 7 � � GRAYEL'� � I _ / o . .�i '' . .' : I �RNEWAV�PARKIyG � �-;" � - . . : ' . 1.392 SF .• �. � x � . : .. �' CONCRETE .��, . � , �.�,w,....., ..' . � '. . WALKWAY�URNCWAY�/ .. \ I �s I'I` I� ' ` • ';�-. � I .. . v,. � � I \ �sos sv �l ' / ... ...._-- • � �� 5 a� e CONCFEfE /{� / ` � Z9LF^ OS � � I ��I \ PADS/WALKWAY � � -.- � r� I ` r�- -_ � I �� i:. .. :� . . . . - C: , I , l� � J � __. � �RAINAGC ` .• I .m a DITCH EXISTING I in I i � A I \ . I , HOME g � �%� I • 1�815 SP / '4 u� STORACE EXISTING � "p I � 565 SF SHED I�� I m I \ 1.486 SF .\ ` � � :.I = / \, I � I � I 12"CMP 21LF m O.fiR I e I I � \ � �4" CMP � L � �� , 4'PVC 13.5LF B 1.9 " I x�f'f�7'I'�` � .� f1� f x z-—z x—z \ � � \ I S/ � - — 1 t"�@�Ap x _Y_x R e _ — — —��.� 25LF'0�13 sa----.�,_�_—x=x—x— : _ I $"° —_ — —_ T :; . _ '�—_ ��— 9.R�g 3a�i sF — �- — — ml .� I �n¢ GhAV�L ROAD --'Ba� . .�� ' � " _ — � 71BTH AVE SE � � � � � ��E .5.... . 3,W �. , . 796 30' ' � �, � 12�CMP ' 26.5LF O 1,5R I �� $ I 1� � gg;. =�9 �� __ _ ��a � i2'cMr � 9 � ,m , w � 6 K St. Thomas Orthodox Church ��I-a ��„�'ir�j�, � TIR .;1�� t ��,� , � , � B-2 Developed Sub-basin Map _ DEVELOPED SUB-BASIN � )I = � Z � I ___ x � o � m 4+3 SCALE 1' - 30 FT. � �� m � '� � � -»' ao' � � I I urn�or uavw�em ix�s rEcr � �� O Li i ili � � �� o a w � > I w 0 0 N01'21'41' NS STA I+�.OS IV � I f �_ $�78 -._.,� / / T � // �_,—t--�c � _� � 5+0 � + 0 /\ � � 2i00 2+5 7+00 � g 3+50 ` —ST y po� � � � NS 4+ .00 po " � � I � 1.175 Sf j�� '�� j.� � I I EW 5+1 .54 _ CONCREiF � j / / � I 3,585 SF WAITING AREA / I I � �� ASPHALT }_�'�� / / � J I I I\ 1..768 SF �� / I I HOOF E%PANSIDN '�F�` -� �� 5+5 !� � I � , \ _558 SF � C �� I PROPOSED CHURCH \/ � A ,I n � PMASE 1 f \ E%ISTINC I/ m � g I `t�\ (z.00a sF� i.eis sr r Y m I I I a FF ELEV�507.5 / \ (TO REMNN) �1.[/ I u � �� I � . FF ELEV-506.4 1,�5' �I y I I I ••� / g _ f'w+SE 2 — BIO-SWALE� 810-SWACE ~ Fl1TURE E%PAN 0\ " �I 6+00 I I (1.920 S�) ` -I J II � I > I / � n � � :Ie s, L.�� ` ` \\ ` �,-Pvc—� � T �x� ••� ` � � nl I p x _11_x _1x•�@�Ap X �p ___ g r— — ..'72.SLF"d 1.3 —"�= SB�x—x—x—r I �R�� SANITARY —�–�— � — — IANHOLE — — _ _ — _ — — — — —,y°�_ — _ ��Y '�505.21 3,341 SF � � I GRAVLL ROAD� __ —�� 178TH AVE SE 6150 � � p g E 152.0' . — -- — — — — — • • (PRIVATE ROAD) I �' 296.J0' NS STA 6+58.74 § �� 12'CM � �.ao � 9 � 9� e 6 ¢ 7 St. Thomas Orthodox Church A1ta �. „ ,. �� TIR „�� l,��l ,?; . � C-1 Bond Quantities Worksheet Site Improvement Bond Quantity Worksheet Webdate: 11/21/2005 � King County Department of Development&Environmental Services 900 Oakesdale Avenue Southwest Renton, Washington 98055-1219 For alternate formats, call 206-296-6600. 206-296-6600 TTY 206-296-7217 Project Name: St. Thomas Orthodox Church nate: 3/8/2010 �ocation: 11651 SE 188th St., Renton, WA 98058 Project No.: Activity No.: Note: All prices include labor, equipment, materials, overhead and Clearing greater than or equal to 5,000 board feet of timber? profit. Prices are from RS Means data adjusted for the Seattle area or from local sources if not included in the RS Means database. yes X no If yes, Forest Practice Permit Number: (RCW 76.09) Unit prices updated: 02/12/02 Version: 04/22/02 Co� King County Bond Quantities.�dsx Report Date: 4/ )10 Site Improvement Bond Quantity Worksheet Webdate 11/21/2005 Unit #of Reference# Price Unit Gluanti A lications Cost EROSION/SEDIMENT CONTROL Number Backfill&com action-embankment ESC-1 $ 5.62 CY Check dams,4"minus rock ESC-2 SWDM 5.4.6.3 $ 67.51 Each Crushed surfacin 1 1/4"minus ESC-3 WSDOT 9-03.9(3 $ 85.45 CY Ditchin ESC-4 $ 8.08 CY Excavation-bulk ESC-5 $ 1.50 CY Fence, silt ESC-6 SWDM 5.4.3.1 $ 1.38 LF Fence, Tem ora NGPE ESC-7 $ 1.38 LF H droseedin ESC-8 SWDM 5.4.2.4 $ 0.59 SY Jute Mesh ESC-9 SWDM 5.4.2.2 $ 1.45 SY Mulch, b hand, straw, 3"dee ESC-10 SWDM 5.4.2.1 $ 2.01 SY Mulch, b machine, straw, 2"deep ESC-11 SWDM 5.4.2.1 $ 0.53 SY Pipin ,tempora , CPP, 6" ESC-12 $ 10.70 LF Pi in ,tem ora , CPP, 8" ESC-13 $ 16.10 LF Pi in ,tem ora , CPP, 12" ESC-14 $ 20.70 LF Plastic coverin , 6mm thick, sandba ed ESC-15 SWDM 5.4.2.3 $ 2.30 SY Ri Ra , machine laced; slo es ESC-16 WSDOT 9-13.1 2 $ 39.08 CY Rock Construction Entrance, 50'x15'x1' ESC-17 SWDM 5.4.4.1 $ 1,464.34 Each Rock Construction Entrance, 100'x15'x1' ESC-18 SWDM 5.4.4.1 $ 2,928.68 Each Sediment pond riser assembl ESC-19 SWDM 5.4.5.2 $ 1,949.38 Each Sediment tra , 5' hi h berm ESC-20 SWDM 5.4.5.1 $ 17.91 LF Sed.trap,5'high,riprapped spillway berm section ESC-21 SWDM 5.4.5.1 $ 68.54 LF Seedin , b hand ESC-22 SWDM 5.4.2.4 $ 0.51 SY , Soddin , 1"dee , level round ESC-23 SWDM 5.4.2.5 $ 6.03 SY Soddin , 1"dee , slo ed round ESC-24 SWDM 5.4.2.5 $ 7.45 SY TESC Supervisor ESC-25 $ 74.75 HR Water truck, dust control ESC-26 SWDM 5.4.7 $ 97.75 HR WRITE-IN-ITEMS **** see a e 9 Each ESC SUBTOTAL: $ - ! 30% CONTINGENCY 8 MOBILIZATION: $ - ESC TOTAL: $ - COLUMN: A Page 2 of 9 Unit prices updated: 02/12/02 Version: 04/22/02 Copy of King County Bond Quantities.xlsx Report Date: 4/16/2010 _ I Site Improvement Bond Quantity Worksheet Web�ate ,,,2"2°°5 Existing Future Public Private Quantity Completed Right-of-Way Road Improvements Improvements (Bond Reduction)• &Draina e Facilities Quant. Unit Price Unit Quant. Cost Quant. Cost �uant. Cost Com lete Cost GENERALITEMS No. Backfill&Com action-embankment GI-1 $ 5.62 CY Backfill&Com action-trench GI-2 $ 8.53 CY Clear/Remove Brush,b hand GI-3 $ 0.36 SY 770 277.20 Clearin /Grubbin /Tree Removal GI-4 $ 8,876.16 Acre Excavation-bulk GI-5 $ 1.50 CY Excavation-Trench GI-6 $ 4.06 CY Fencin ,cedar,6'hi h GI-7 $ 18.55 LF Fencin ,chain link,vin I coated, 6'hi h GI-8 $ 13.44 LF Fencin ,chain link, ate,vin I coated, 20' GI-9 $ 1 271.81 Each Fencin ,s lit rail,3'hi h GI-10 $ 12.12 LF Fill 8 com act-common barrow GI-11 $ 22.57 CY Fill&com act- ravel base GI-12 $ 25.4B CY Fill 8 com act-screened to soil GI-13 $ 37.85 CY Gabion, 12"dee ,stone filled mesh GI-14 $ 54.31 SY Gabion, 1 S"dee ,stone filled mesh GI-15 $ 74.85 SY Gabion,36"dee ,stone filled mesh GI-16 $ 132.48 SY Gradin ,fine,b hand GI-17 $ 2.02 SY Gradin ,fine,with rader GI-18 $ 0.95 SY Monuments,3'lon GI-19 $ 135.13 Each Sensitive Areas Si n GI-20 $ 2.88 Each Soddin ,1"dee ,slo ed round GI-21 $ 7.46 SY Surve in ,line& rade GI-22 $ 788.26 Da Surve in ,lot location/lines GI-23 $ 1,556.64 Acre Traffic control crew 2 fla ers GI-24 $ 85.18 HR Trail,4"chi ed wood GI-25 $ 7.59 SY Trail,4"crushed cinder GI-26 $ 8.33 SY Trail,4"to course GI-27 $ 8.19 SY Wall,retainin ,concrete GI-28 $ 44.16 SF Wall,rockery GI-29 $ 9.49 SF Page 3 of 9 SUBTOTAL 277.20 Unit prices updated: 02/12/02 "KCC 27A authorizes only one bond reduction. Version: 4/22/02 CoF ing County Bond Quantities.xlsx Report Date'4 010 Site Improvement Bond Quantity Worksheet Webdate: 1�,�„�a�. Existing Future Public Private Bond Reduction' Right-of-way Road Improvements Improvements 8�Draina e Facllities Quant. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Com lete Cost ROADIMPROVEMENT No. AC Grindin ,4'wide machine<1000s RI-1 $ 23.00 SY AC Grindin ,4'wide machine 1000-2000s RI-2 $ 5.75 5Y AC Grindin ,4'wide machine>2000s RI-3 $ 1.38 SY AC Removal/Dis osal/Re air RI-4 $ 41.14 SY Barricade, e I RI-5 $ 30.03 LF Barricade, e III Permanent RI-6 $ 45.05 LF Curb&Gutter,rolled RI-7 $ 13.27 LF Curb&Gutter,vertical RI-8 $ 9.69 LF Curb and Gutter,demolition and dis osal RI-9 $ 13.58 LF Curb,e�Rruded as halt RI-10 $ 2.44 LF Curb,eMruded concrete RI-11 $ 2.56 LF Sawcut,as halt,3"de th RI-12 $ 1.85 LF Sawcut concrete er 1"de th RI-13 $ 1.69 LF Sealant,as halt RI-14 $ 0.99 LF Shoulder,AC, see AC road unit rice RI-15 $ - SY Shoulder, ravel,4"thick RI-16 $ 7.53 SY Sidewalk,4"thick RI-17 $ 30.52 SY 131 3,998.12 Sidewalk,4"thick,demolition and dis osal RI-18 $ 27.73 SY Sidewalk,5"thick RI-19 $ 34.94 SY Sidewalk,5"thick,demolition and dis osal RI-20 $ 34.65 SY Si n,handica RI-21 $ 85.28 Each Stri in , er stall RI-22 $ 5.82 Each Stri in ,thermo lastic, for crosswalk RI-23 $ 2.38 SF Striping,4"reflectorized line RI-24 $ 0.25 LF Page 4 of 9 SUBTOTAL 3,998.12 Unit prices updated: 02/12/02 "KCC 27A authorizes only one bond reduction. Version: 4/22/02 Copy of King County Bond Quantities.xlsx Report Date:4/16/2010 Site Improvement Bond Quantity Worksheet Webdate: 11/21/2005 Existing Future Public Private Bond Reduction* Right-of-way Road Improvements Improvements &Draina e Facilities Quant. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Com lete Cost ROAD SURFACING (4"Rock=2.5 base&1.5"top course) For'93 KCRS(6.5"Rock=5"base&1.5"top course) For KCRS'93, additional 2.5"base add: R5-1 $ 3.60 SY AC Overla , 1.5"AC RS-2 $ 7.39 SY AC Overla ,2"AC RS-3 $ 8.75 SY AC Road,2",4"rock,First 2500 SY R5-4 $ 17.24 SY AC Road,2",4"rock,Q .over 2500SY RS-5 $ 13.36 SY AC Road,3",4"rock,First 2500 SY RS-6 $ 19.69 SY AC Road,3",4"rock,Q .over 2500 SY RS-7 $ 15.81 SY AC Road,5",First 2500 SY RS-8 $ 14.57 5Y I AC Road,5",Qt .Over 2500 SY RS-9 $ 13.94 SY AC Road,6",First 2500 5Y R5-10 $ 16.76 SY I AC Road 6" Q .Over 2500 SY RS-11 $ 16.12 SY As halt Treated Base,4"thick R5-12 $ 9.21 SY Gravel Road,4"rock,First 2500 SY RS-13 $ 11.41 SY Gravel Road,4"rock,Q .over 2500 SY RS-14 $ 7.53 SY PCC Road,5",no base,over 2500 SY RS-15 $ 21.51 SY PCC Road, 6",no base,over 2500 5Y RS-16 $ 21.87 SY Thickened Ed e RS-17 $ 6.89 LF Page 5 of 9 SUBTOTAL Unit prices updated: 02/12/02 *KCC 27A authorizes only one bond reduction. Version: 4/22/02 CoF ing County Bond Quantities.xlsx Report Date:�'""�010 Site Improvement Bond Quantity Worksheet Webdate: liilii�005 Existing Future Public Private Bond Reduction" Right-of-way Road Improvements Improvements 8 Draina e Facilities Quant. Unit Price Unit Quant. Cost Quant. Cost Quant. Cost Com lete Cost DRAINAGE (CPP=Corrugated Plastic Pipe,N12 or Equivalent) For Culvert rices, Avera e of 4'cover was assumed.Assume erforated PVC is same rice as solid i e. Access Road,R/D D-1 $ 16.74 SY Bollards-fixed D-2 $ 240.74 Each Bollards-removable D-3 $ 452.34 Each * CBs include frame and lid CB T e I D-4 $ 1,257.64 Each CB T e IL D-5 $ 1,433.59 Each CB T e II,48"diameter D-6 $ 2,033.57 Each for additional de th over 4' D-7 $ 436.52 FT CB T e II,54"diameter D-8 $ 2,192.54 Each for additional de th over 4' D-9 $ 486.53 FT CB T e II,60"diameter D-10 $ 2,351.52 Each for additional de th over 4' D-11 $ 536.54 FT CB T e II,72"diameter D-12 $ 3,212.64 Each for additional de th over 4' D-13 $ 692.21 FT Throu h-curb Inlet Framework Add D-14 $ 366.09 Each Cleanout,PVC,4" D-15 $ 130.55 Each Cleanout,PVC,6" D-16 $ 174.90 Each Cleanout,PVC,8" D-17 $ 224.19 Each Culvert,PVC,4" D-18 $ 8.64 LF Culvert,PVC,6" D-19 $ 12.60 LF Culvert,PVC, S" D-20 $ 13.33 LF Culvert,PVC,12" D-21 $ 21.77 LF Culvert,CMP,8" D-22 $ 17.25 LF Culvert,CMP, 12" D-23 $ 26.45 LF Culvert,CMP,15" D-24 $ 32.73 LF Culvert,CMP, 18" D-25 $ 37.74 LF Culvert,CMP,24" D-26 $ 53.33 LF Culvert,CMP,30" D-27 $ 71.45 LF Culvert,CMP,36" D-28 $ 112.11 LF Culvert,CMP,48" D-29 $ 140.83 LF Culvert,CMP,60" D-30 $ 235.45 LF Culvert,CMP,72" D-31 $ 302.58 LF Page 6 of 9 SUBTOTAL Unit prices updated: 02/12/02 "KCC 27A authorizes only one bond reduction. Ve�sion: 4/22/02 Copy of King County Bond Quantities.xlsx Report Date:4/16/2010 � Site Improvement Bond Quantity Worksheet Webdate: 11121/2005 Existing Future Public Private Bond Reduction"' Right-of-way Road Improvements Improvements DRAINAGE CONTINUED 8 Drainage Facilities Quant. No. Unit Price Unit Quant. Cost Quant. Cost puant. Cost Com lete Cost Culvert,Concrete,8" D-32 $ 21.02 LF Culvert,Concrete,12" D-33 $ 30.05 LF Culvert,Concrete,15" D-34 $ 37.34 LF Culvert,Concrete,18" D-35 $ 44.51 LF Culvert,Concrete 24" D-36 $ 61.07 LF Culvert,Concrete,30" D-37 $ 104.18 LF Culvert,Concrete,36" D-38 $ 137.63 LF Culvert,Concrete,42" D-39 $ 158.42 LF Culvert,Concrete,48" D-40 $ 175.94 LF Culvert,CPP,6" D-41 $ 10.70 LF Culvert,CPP,8" D-42 $ 16.10 LF Culvert,CPP,12" D-43 $ 20.70 LF Culvert,CPP, 15" D-44 $ 23.00 LF Culvert,CPP,18" D-45 $ 27.60 LF Culvert,CPP,24" D-46 $ 36.80 LF Culvert,CPP,30" D-47 $ 48.30 LF Culvert,CPP,36" D-48 $ 55.20 LF Ditchin D-49 $ 8.08 CY Flow Dis ersal Trench 1,436 base+ D-50 $ 25.99 LF French Orain 3'de th D-51 $ 22.60 LF Geotextile,laid in trench, ol ro lene D-52 $ 2.40 SY Infiltration ond testin D-53 $ 74.75 HR Mid-tank Access Riser,48"dia, 6'dee D-54 $ 1,605.40 Each Pond Overflow S illwa D-55 $ 14.01 SY Restrictor/Oil 5e arator,12" D-56 $ 1,045.19 Each Restrictor/Oil Se arator,15" D-57 $ 1,095.56 Each Restrictor/Oil Se arator,18" D-58 $ 1,146.16 Each Ri ra , laced D-59 $ 39.08 CY Tank End Reducer 36"diameter D-60 $ 1,000.50 Each Trash Rack,12" D-61 $ 211.97 Each Trash Rack,15" D-62 $ 237.27 Each Trash Rack,18" D-63 $ 268.89 Each Trash Rack,21" D-64 $ 306.84 Each Page 7 of 9 SUBTOTAL Unit prices updated: 02/12/02 "KCC 27A authorizes only one bond reduction. Version: 4/22/02 CoF ing County Bond Quantities.xlsx Report Date:��-�-010