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Home My WebLink AboutTED4001801.4T - ; SEC. 8, TWP. 23 N., RGE. 5 E., W.M. /014 WAT2�' S 5PARATOR S 4 T CB / 6� ` "C 2 /y.4NKO! �YD 2.A �� SEA it/G9TE BG TY/E II- .S4 " Tl�!✓'�" �- Sw ,e/� /73. 0 S',U�•T7'/M /low. 27 71_4�3- -ram"IX/45- D, ESE c - /59 4/ 3l0 " /54.41 � ,' /2 "E /53-910 /2 " i54.2/ JCC!,4rt�� StiEET C7 O.22/5 2 /2 "G�/ /54. 03 ;'V 8 , fr B '/ O _ O � A - 4z 2 • H ear, /VG CO Cam'' /43 58 _ �--V , ' FF /74 95' eEC�I//�1�0 74 FOLC OIy - rec o `ooT�Nc d OO / (� y / !60 162 ` I i rill /4Z.73�i � 3 • H 5c� � `� 44 In) sr M - ® CAE' CA1 (n �� p p�j�p inCLEANOUT - F /5s � 4__ 0,4/�'�/G/�T /`OlJl/rVG L� GPA -- -___ _-.�►-_Y 1 t�� 4 /1v8.- f .eiil'1 /5489 v e//L1 i 73- 740 ` ( A( / 71,54 i i FF /63.0 rr rA ZEBG COr1/ T8m 0 20 40 1R = 2O' DATUM: CITY OF RENTON (U.S.C. & G.S.) T. B . M.: INVERT OF SANITARY SEWER B E N MANHOLE NEAR S.W. CORNER OF PROPERTY. I.E. = 147.40 Tip - fin. /o�I g. Baffle -type oil/water separator vault - City of Renton Sid. Drawing No. 3.4.544 depth and details in these plans), or equal. a � N, h. Special catch basins or drainage structures shall be as detailed in these plans. Note: all unit covers shall be per APWA standards and all structures deeper than five feet W (rim to invert) shall be Type II and equipped with manhole steps or a manhole ladder, per APWA standards. �a 9. All frames, grates and/or solid covers shall be cast iron or ductile iron and shall meet City x h of Renton standards. a. Standard frame and grate - City of Renton Sid. Drawing No. 3.6.3 or equal. b. Self-locking vaned grate - City of Renton Std. Drawing No 3.6.4-a or equal ` q c. Rolled curb frame and grate - Olympic Foundry Co. No. SM44 or equal. 0 W d. Thru-curb inlet fra" and grate - Olympic Foundry Co. No. SM52. N d e. Solid, locking, rectangular cover - King County Standard Drawing Nos. 42 and 43, Olympic N on. Foundry Co. No. SM50S or equal. f. Solid, locking, round cover - King County Standard Drawing Nos. 49 and 50, Olympic Foundry Co. No. MH30D/T or equal. 0� 'y01 o ti Note: All solid covers shall be marked "Drain." All grates shall be marked "Outfall to ti � _ stream - Dump no pollutants." All grates shall be depressed 0.10 feet from surrounding curb ` +- or pavement to insure adequate drainage. co W o V O 10. All storm drain pipe may be constructed of one of the following materials unless otherwise specified in the plans. All pipe joints must be gasketed watertight and must be of the same oE� material as the pipe. All pipe shall have a minimum cover of 12" and shall be adequately pro- tected during construction (refer to the manufacturer's recommendations for minimum cover for heavy equipment loadings). a. Ductile iron 4" through 14" diameter pipe shall be Class 52 and 16" through 24" diameter pipe shall be Class 50, all in accordance with USA Standard A-21.1 (ANNA C-51). All . U O joints shall be push -on, mechanical, or flanged. o VZ N b. PVC 4" through 18" diameter pipe with 18" to 36" of cover shall be in accordance with ASTM 0Z W D3034 SDR 21. 4" through 18" diameter pipe, with over 36' of cover shall be in accordance WCD with ASTM D3034 SDR 35. All joints shall be push -on with rubber gaskets. (Note: PVC z CD M pipe used for downspout leaders, yard drains, and landscaping drainage may be ASTM D2729 - 4 with solvent welded joints, 12" minimum cover.) J W z M c. Helical corrugated aluminum pipe (CMP) 6" through 18" diameter shall be 16 gauge with w a 2-2/3" x 112" corrugations. 21" through 36" diameter pipe shall be 14 gauge with 2-2/3" x y Z F 1/2" corrugations. Refer to details in these plans for any pipes larger than 36" in (9 z diameter. cc Z W - 0 d. Helical corrugated steel pipe (CMP) 6" through 36" shall be 16 gauge with 2-2/3" x 1/2" W W Q Q corrugations. All steel materials shall be galvanized and Asphalt Treatment I coated. Re- I fer to details in these plans for any pipes larger than 36" in diameter. W> 3 e. Corrugated polyethylene tubing (ADS) 4" through 12" diameter pipe shall conform to ASTM UJ F-405 heavy duty, as supplied by Advanced Drainage Systems, or equal. Z f. Corrugated high density g g y polyethylene pipe (CPEP) 12" through 36" diameter shall be in ac- W� cordance with AASHTO M-294, as supplied by Advanced Drainage Systems designated N-12, or equal. J 11. All i shall be laid on aproperlyZ Z O W P Pe prepared foundation according to the latest edition of the Standard Specifications for Road, Bridge and Municipal Construction Sec. 7-02.3(1). This shall .include necessary leveling of the trench bottom or the top of the foundation material as W well as placement and compaction of required bedding material to uniform grade so that the W entire length of the pipe will be supported on a uniformly dense unyielding base. All pipe bedding Z shall be APWA Class 'C', with the exception of PVC pipe. All trench backf8l shall be compacted to minimum 95% for paving N and structural fill and 90% otherwise per ASTM D-1557-70. Pea gravel bedding shall be 6" over and under PVC pipe. (� Oz OW J - - 13. All trench backfill in areas of future O > --------------.% U pavement or structural loading shall be compacted to at OVERLOOK � - JI CGYF least 95% of the maximum dry density per ASTM D 1557-70 (Modified Proctor). All other areas O U w%' BBQ tp Q//�/ shall be compacted to 90%. 14. All building roof drain downspouts and footing drains shall P q be directly connected to the main storm drainage conveyance system through an underground pipe system. Roof drains and footing - drains shall be separate systems and shall be constructed of 4" (or 6" dia. where shown) rigid PVC pipe (non -perforated for roof drains, perforated for footing drains). Sufficient clean- ,`` l`} outs and bends shall be installed so that the system can be easily maintained. The system j$ shown hereon is schematic only. The drainage/grading contractor or landscaper may alter the layout as required to better drain the site, with prior approval of the City of Renton. All roof _� .. and footing drains shall be adjusted as necessary to avoid impacting the existing trees denot- IN ed "to be saved" on the grading plan with - g g p prior approval of the City of Renton. Drain lines should be located outside the dri Nne of trees wherever possible, 6a `do 8 Pipes and clea outs and submit same tothe engineer cand rowner supon kcomplet on of the d record of the location of all work b 'f C H M A R KOCONCRETE . MONUMENTAT THE INTERSECTION OF N.E. 12TH ST. AND ABERDEEN AVE, N.E. ELEV. = 280.88 ql .VP FSP S 1 ..a Z �r^ 15. Construction of dewatering (groundwater interception) systems shall be in accordance with the v, W N 8,90vrr�5 6 rJC�{�%' APWA Standard Specifications, Section 61-3.02. k 16. Any open cuts of existing public roadways require prior approval from the Department of Public V, 2 r Works and shall be backfilled and compacted in accordance with City of Renton standards. All � cuts into existing asphalt shall be along neat, continuous, sawed lines. A temporary cold mix W patch must be placed immediately after backfill and compaction. The existing surfacing must QZ pp Cep YD 4• A be replaced in kind (or 4 inches of compacted Class "B" asphalt concrete, whichever is O _K qj Q greater) within 30 days of cold patching. The contractor shall closely follow requirements of [�+ the Right -of -Way permit: specifically, allowable working hours, detour and warning signs and /73 O notification of road alterations to the Police and/or other emergency services. 17. The Contractor shall be responsible for providing adequate safeguards, safety devices, protec- tive equipment, flaggers, and any other needed actions to protect the life, health, and safety i-Q Q� of the public, and to protect proper y in connection with the performance of work covered by t j � STORM DRAINAGE NOTES tt:e contract. Any work within the traveled right-of-way that may interrupt normal traffic 1� flow shall require at least one flagger for each lane of traffic affected. All sections of LQ Q O the W.S.D.O.T. Standard Specifications 1-07.23 - Traffic Control shall apply. Q ~ 1. All work and materials shall be in accordance with the latest edition of the Standard 18. The contractor shall keep off -site streets clean at all times by sweeping. Washing of these Q Specifications for Road, Bridge, and Municipal Construction prepared by W.S.D.O.T. and streets will not be allowed without prior City of Renton approval. A.P.W.A. as adopted by the City of Renton Department of Public Works. 19. Structures shall not be permitted within 10 feet of the spring line of any storm drain pipe, ~ ~ of a channel bank. Q 2. Before any construction or development activity occurs, apre-construction meeting must be held with the or 15 feet from the top City of Renton Department of Public Works, design engineer, by phoning 277-5570. 20. Prior to occupancy, the _J permanent storm drainage system must be cleaned by pumping. J O 3. A co of these approved plans must be on the 21. To assure long term operation and maintenance, all catch basins shall be checked and cleaned copy I?p p job site whenever construction is in progress. every few months. Regularly scheduled seasonal catch basin cleaning (November and April) is a 4. The storm drainage system shall be constructed according to the approved plans which are on file In the recommended minimum. Department of Public Works. Any deviation from the approved plans wiN require written approval from the City of Renton Department of Public Works, Design Engineer or Storm Water UtiNty. 22. Issuance of this Building or Construction Permit by Cl+y of Renton does not relieve the owner of this con- tinuing legal obligation and/or liability connected with storm and surface water disposition 5. It shall be the sole responsibility of the contractor to obtain street use and any other relat- and further, City of Renton does not accept any obligation for the proper functioning and ed permits prior to any construction activity. maintenance of the system provided. 6. All locations of existing utilities shown hereon have been established by field survey or ob- 23. Prior to acceptance of construction and/or issuance of occupancy permits, Engineer/Surveyor- (� tained from available records and should therefore be considered approximate only and not nec- certified as -built drawings of all storm drainage facilities must be prepared and submitted to of Renton Department. Cit y essarily complete. It is the sole responsibility of the contractor to independently verify the appropriate the accuracy of all utility locations shown and to .`.urther discover and avoid any other utili- 24. All catch basin rates shall be depressed 0.10 feet below ~ ties not shown hereon which may be affected by the implementation of this plan. The contrac- g P pavement level. �� ~ Q -.4 (Ifor shall contact the Underground Utilities Location Service (1-800-424-5555) at least 48 hours prior to construction. The owner or his representative and the engineer shall be con- 25. Datum shall be U.S.G.S. N > W W tatted immediately if a conflict exists. 26. Rock for erosion protection of roadside ditches, where required, shall be of sound quarry rock Z W` Z 7. Locations of roadways, buildings and placed to a depth of 1 foot and must meet the following specifications: 4" - 8" / 40% - 70• y g parking areas shown hereon are approximate. For dimen- 2" - 4" / 30% - 40$ J V y Q sioned locations of these improvements, refer to the architectural site plan. Improvement and,G+ passing, passing and 2" rock / 104 - 20• passing. > J structure locations shall be field set by the engineer as required. 27. All sedimentation/erosion facilities must be in operation prior to clearing and building 08. All storm drainage structures, as designated in the plans, shall be one of the following: t construction, and they must be satisfac,:orily maintained until construction is co and U the potential for onsite erosion has passed. Q W a. Yard drain - Associated Sand and Gravel CB-10, or equal. 41Q . All retention/detention facilities must be installed and in operation prior too � aQ b. Inlet - City of Renton Std, Drawing No. 3.2,1 , APWA Standard Plan 59, Associated Sand a.-d conjunction with all construction activity unless otherwise approved by the Depa of el CB-17, or equal. Public Works, Storm Water Utility. ` W � 4 a c. Type 1-C catch basin - City of Renton Sid. Drawing No. 3.2.2 APWA Standard Plan 52, Associate 29� Grass seed may be applied by hydroseeding. The grass seed mixture, other than the City of Q Sand and Gravel CB-15, or equal. Renton approved standard mixes, shall be submitted by a Landscape 'Architect and approved by 0 Q Q the Department of Public Works, Storm Water Utility. d. Type II-48" catch basin - City of Renton Std. Drawing No. 3.2.3 (with minimum 24" deep sump SHEET �F low pipe invert), APWA Standard Plan 55, Associated Sand and Gravel CB-19, or equal. FW�. e. Type II-54" catch basin - City of Renton Std. Drawing No. 3.2.3 APWA Standard Plan 37 (WILL�� /� minimum 24" deep sump below pipe �.,vert), Associated Sand and Gravel 54" precast catch basin, or equal. At FMAPPPAAK 9100, f. Type II-72" catch basin - City of Renton Std. Drawing No. 3.2.3 APWA Standard Plan 38 (with `1/ 16 ...► rw - '=�4 2 a ` �1 minimum 24" deep sump below pipe invert) , Associated Sand and Gravel 72" precast catch PROJECT NUMBER, basin, or equal. P4.R �� Rr'1!!e W 89140 AAR 2 2003