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10 :1 BEGINNING, OF FILE FILE TITLE E. U ra11�y Nwy . 448rAm,Aics 04s' k Qr�.wy� T23N R5E WM FIGURE I x 19 �0 A I p o N r ROPOSED P 9 CHANNEL CITY OF SEATTLE AO"WATER LINE EASEMENT P•9 CHANNEL CITY OF SEATTLE POWER RISHT OF WAY 2)RD ST SW MESERVED I l,\j EASEMENT 10' INGRESS-EGRESS — ROAD EASEMENT PACIFIC NORTHWEST 9FL.. TELEPHONE EASEMENT IiR'p_�T9FE I ' 1p_oR LIND AVE S I _ yyINC __, E.VwF..Awed WA>HINi•70N 9tuGH E/OR.R R I T AX LOT 83 DRAW Avv CITY OF RENTON - CFEC[En RRI SEC 30 T234 R5E - OLYMPIC PIPE LINE COMPANY -- N AT T L9.WAAHWO T ON T 23N R 5E WM FIGURE I J93 0 � o a E. 1 - -- r^,+PROPOSED P 9 CN6NNEl C�1 CITY OF SEATTLE 60`WATER - LINE EASEMENT P 9 tMANNEI CIT+ 9F SEATTIE POWER I�---= RIGHT OF WAY ._,...__...-_ ----,.-- 2100 51 SW RESERVED EASEMENT TO —_ _—_ --- INGRESS-EGRESS ROAD EASEMENT PACIFIC NORTHWEST REIN w TUAPMONE EASEMENT t i64Y1.RIN4n[..,11: >Io'oRa. ,FUND AVE S •. H.. _ »,. �!NG- twwq,Aw.d WA$HINGTON . .. 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G' . • CITY DE RE MTOM DE To ION 90MD SIAULATIOM1� 1 '� TIME that" 43 BASIN 94 BASIN 45 POND STORAGE ELEVATION 8(TO CHANNEL) t( CULVERT) CHANNEL STORAGE ELLEVATION OINEIR) • Btit188t619ti 119Ug49tittitBitttittitit tltgtitt gtttlitt8tt06tl876tttititl8tittt9tlf ttt9ti06169 Bittt0880H/ttt66tttttl//t6itt60ti0itti8886Y4t 20. 0.00 0.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0.00 • 30. 0.00 0.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0.00 40. 0.00 0.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0.00 50, 0.00 0.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0.00 60. 0.00 0.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0,00 70. 0.00 0.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0.00 80, 0.00 0.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0,00 • 90. 0.00 0.00 0.00 0. 12.00 0.00 0.40 0. 12.00 0.00 • 100. 0.00 0.00 0.01 •1. 12.00 0.00 0.00 0. 12.00 0.00 110. 0.00 0.00 0.01 -57. 12.00 0.00 0.o0 -1. 12.00 0.06 • 120. 0.00 0.00 0.02 -143, 12.00 0.51 0.00 21. 12.00 0.23 130, 0.02 0.05 0.11 -91. 12.00 0.11 0.00 -1. 12.00 0.02 140. 0.05 0.10 0.21 60. 12.00 0.00 0.00 3. 12.00 0,06 • 150. 0.08 0.15 0.31 188. 12.00 0.00 0.00 14. 12.00 o.le 160. 0.21 0.37 0.59 517. 12.00 0.95 0.00 68. 12.00 0.51 110. 0.35 0.65 0.99 1218. 12.00 0.00 0.00 91. 12.00 0.62 • 180. 0.49 0.91 1.18 2154. 12.00 2.49 0.00 e10. 12.00 1.08 190. 0.80 1.50 1.73 3901. 11.00 0.00 0.00 201. 12.00 1.05 200. 1.13 2.08 2.31 5093, 12.00 0.00 0.00 306. 12.00 1.38 • 210. 1.46 2.63 2.89 8584. 12.00 2.72 0.00 554. 12.00 2.04 220. 2.00 3.60 3.78 11,000. 12.01 2.93 �.00 74y. 12.01 2.51 230. 2.54 4.47 4.71 16481. 12.01 3.51 0.00 1016. 12.01 3.06 . '40, 3.09 5.17 5.56 21861, 12.01 4.21 0.00 1340: 12.01 3.70 • 250, 3.88 6.51 6.82 28469. 12.01 5.03 0.00 1726. 12.01 4.39 260. 4.63 7.65 0.09 36542. 12.02 5.91 0.00 2190. 12.02 5.15 • 270. 5.38 9.51 9.77 45840. 12.02 6.83 0.00 2730. 12.02 5.97 • 280. 6.37 10.11 10,77 56637. 12.03 7.84 0.00 3352, 12.02 6.83 290, 7.28 11.44 12.' 69190. 12.03 8.92 0.00 4064. 12.03 7.76 ' 300. 8.18 11.39 . 83188. 12.04 10.01 0.00 4854. 12.03 8.74 • 310. 9.32 14.17 15 : 98854, 12.05 11.18 o.00 5723. 12.04 9.?5 320. 10.33 15.53 4 116457, 12.05 12.40 0.00 6.'94, 12.05 10.83 . 330. 11.33 16.34 . •6 135543, 12.06 13.62 0.00 7745. 12.05 11.93 • 340, 12.52 19.06 'b 12.07 14.90 0.00 88?1. 12.06 13.06 350. 13.50 19.26 `' 12.09 16.2.' 0.00 10093. 12.07 14.24 360. 14.45 19.91 73.71 :u 19 12.10 17.51 0.00 11388. 12.00 15.43 370. 15.73 21.82 T �� . :B .A. 12.11 18.86 0.00 12750. 12.09 .64 380, 16,78 23.18 1 .04 12.12 20.2' 0.00 1,4215. 12.10 .7.89 • 390. 17.81 23.96 . ',64 ..,.720. 12.13 21.66 0.00 15760. 12.11 19.16 • 400. 19.17 26.11 31.69 316870. 12.15 23.10 0.00 17378. 12.12 20.45 410. 20.30 27.66 33.16 350297. 12.16 74.59 0.00 19102. 12.:3 21.78 • 420. 21.42 c8.62 35.52 385376. 12.18 26.07 0.00 20912. 12.15 23.14 • 430. 23.06 31.39 37.92 422690, 12.20 27.62 0.00 22803. 12.16 24.51 440. 24.51 33,32 40.23 462887, 12.22 29.26 0.00 248.5. 12.17 25.94 • 430, 23.94 34.45 42.30 505188. 12.24 30.88 0.00 26956. 12.19 27,41 • 460. 27.77 37.50 44.91 550111. 12.26 32.56 0.00 29105. 12,20 28.90 470, 21.30 39.63 47.69 598268. 12.26 34.33 0.00 31153. 12.22 30.44 • 480. 30.81 40.94 50.00 64979'. 12.30 36.09 0.00 34044, 12.24 32.02 • 490. 33.08 44.94 $3.09 702554. 11.33 37.91 0.00 36648, 12.25 33.63 500. 35.11 47.75 56.40 760558. 12.36 39,09 0.00 39423. 12.27 35.31 • 510. 37,13 49.41 59.22 82019. 12.38 41.66 0.00 42338, 12.29 37.04 • 320. 40.40 55.06 63.54 987546. 12.42 43.95 0.00 45446. 12.32 38,82 530, 43.35 59.56 68.22 959873. 12.45 46.25 0.00 49778. 12.34 40.?0 • 540. 46.28 62,8' 7:.24 1037459. 12,49 48.60 0.00 52359, 12.36 42.66 • 550. 51.44 72.12 78.64 1122860. 12.53 51.16 0.00 56191. 12,39 44.72 • 560. 56.40 79.04 MU 12 t 9074. 12.57 54.05 0100 60410, 12.42 46,93 • 570, 59.69 85,69 91,82 1324002. 12.62 57.03 0.00 65031, 12.45 49.30 ' 580, 60.00 120.44 113.67 1440571. 12.68 60.67 0.00 T0:"1• l2.44 31.84 • 1390. 60.00 154.90 137.57 1606434. 12.75 65.47 0.00 76146, 12.53 51.79 600. 60.00 166.58 160.54 1795021.. 12.84 70.8. 0.00 63451. 12158 Su.ti • 610. 60.00 227,65 107,31 MOM 12.94 76.69 0.00 91B96. 12164 d2.0.. 620, 60,00 264.96 214.85 2275267. 13.07 93.13 0.00 101628. t2 Jl 66.39 630, 60.00 294,00 241.00 2566753. 13.20 $9.84 0.00 112427. 12,78 71.09 . 640, 60,00 334,52 267189 2891354. 13.35 96.90 0.00 124810. 12.87 76,13 650, 60,00 152,77 295.24 3244640. 13152 103.97 0.00 134131, 12,96 81.46 660. 60,00 344.75 120.54 3611300. 13.69 110.54 0.00 152333, 13.06 86.95 670. 60.00 339.65 344.41 3993869, 13.67 116.74 0.00 167056. 13.16 1,2.47 680. 40.00 325.30 368.43 4361501. 14.04 122.64 0.00 182106. 13.26 97.94 690, 60.00 305.03 383.17. 4737016. 14.22 128.14 0100 197310• 13.37 103.32 . 700, 60.00 289.15 381.63 5201640. 14.39 113.00 0.00 212446. 13.49 109.54 710, 60,00 267.00 379.96 5450449, 14.51S 137117 0.Ou 127287. 13.58 113.53 720. 60,00 243.08 373.11 -1780580. 14.31 141.35 O.00 241661. 13.68 118.27 730. 60.00 222.18 363.02 6090135. 14.85 S44.7e 0,00 255432. 13," 122.72 740. 60.00 198.18 7lS)C6378318. 14.99 147.73 0.00 208M L 13.96 126.99 750, 60.00 173.96 341.46 6643820. $5.11 150.30 0.00 280835. 13.95 130.73 • 760, 60,00 153.04 327.91 6986721. 15.22 157.51 0.00 292348. 14.03 134.29 770, 60.00 129.24 314.89 7107075. 15.33 154.38 0.00 303028• 14.10 137.53 780, 60.00 119.01 300.53 7307093, 15.42 116.01 0.00 312069, 14.17 140.49 • 790. 60.00 113.27 285.13 7494467, 15.51 1S7.53 0.00 321945, 14.24 143.20 i 800. 60.00 105.22 270.60 7667114. 15.59 158,94 0.,00 330339. 14.29 145.67 810. 60.00 100.07 254.86 7825873. 15.66 160.20 0.00 339097, 14.35 147.95 • 820. 60.00 98.19 239.26 7972167. 15,73 161.35 0.00 345262. 14.40 150.03 t 830. 60.00 94.02 223.01 8106500, 15.80 W AO 0,00 351878, 14.44 151.94 840. 60.00 90.46 206.99 $228486. 15,85 163.28 0.00 357969. 14.49 153.69 . 850, 60.00 89.31 190.02 8338661. 15.90 164,06 O.00 363550. 14.52 155.28 860. 60.00 96.06 175.20 8437648. 15.95 164,72 0.00 368645, 14.56 15 .73 870. 60.00 82.04 159.60 BS25203. 15.99 165.26 0.00 373266. 14.59 158.04 . 880. 60.00 81.96 143.28 8601637, 16.03 165.68 o,00 377423. 14.62 159.21 890. 60.00 79.99 136.64 8669857. 16,06 166.04 0.00 381139. 14.65 160.25 900. 60.00 75.94 130.52 P732414. 16.04 166.40 0.00 384477, 14.0 161.19 • viol 60.00 j5.02 123.94 8709805. 14.12 166.75 O,DC 3BflPi. U.69 162.01 • 920. 6D.00 ';,62 120.57 8843073. 16,14 167.10 0.00 390231, 14,71 162.79 930• 40.00 70.12 116 J2 8092544. 16.16 167.43 0.00 392737• 14.73 163.48 ' 940. 60.00 69.96 112.38 8938537. 16,18 167.76 0.00 395039. 14.74 164112 950, 60.00 66.20 109.97 8981800. 16120 168.08 0.00 397165. 14.76 164,71 960, 60.00 66.35 107,09 902211.1. 16122 168.38 0.00 394138. 14.77 165.26 970. 60.00 1,6.29 t03.79 9040002. 16..14 168.67 0100 400971. 14,78 16S J6 980. 60.00 64.57 l01.9t 9095577, 16.26 168.95 0.00 402691. 14,60 166.23 990, 60,00 02.54 99.47 9120558, 16.27 169.20 0100 404277. 14,81 166,67 1000. 60.00 62.26 96.60 9159088, 16.29 169.44 0.00 405761, 14182 167.08 1010. 60.00 60.35 93.06 9187532, 16.30 169.65 0.00 407144. 14,83 167.46 1020. 60.00 58,12 42,95 9213534. 16.31 169.84 0.00 408426. t4.84 167.01 • 1030. 60.00 57,65 90.41 9237181. 16.32 170.01 0.00 409413, t4.84 t!?.14 • 1040. 60.00 5S.97 86.93 9259928. 16.33 170.16 0.00 410705, 14.85 160.43 1050. 60.00 54.09 86.84 9278443. 14.34 170.29 0.00 411707. 14.86 168.71 1060, 60.00 53.99 04.32 9295088. 16135 170.39 0.00 412421, 14.87 169.96 • 1070, 60.00 52167 0"04 9311700. 16.36 170.49 0,00 413431• 14.87 169.18 1000. 60.00 51,16 80.90 9325590. 26.37 170.56 C,00 414202, M PP 149.39 . 1090, 60.00 51.43 79.01 9317910, 16.37 170.61 0.00 414874. 14." 169.37 • 1100, 60.00 $0,47 78.03 9349150. 16.38 170.69 0.00 4154C'. 14.99 169.74 1110. 60,00 49,33 76.39 9350996. 16.38 170.73 0.00 416o?7. 14.69 UP. • MO. 60.00 49.96 73.08 9367741. 16.39 170,78 0.00 416513. 14.99 71D.02 1 Wo, 60.00 19.37 74.55 9375926, 16.39 170.82 9.00 41050. 14.90 170.14 1140. 60.00 48.59 73.57 9383207. 16.39 170.46 0.00 417344. 1-4.90 170,24 • 1150. 60.00 49.60 72.51 9309903. 16.40 170.40 0,00 417699. 14.110 110.14 , 1I60. 60.00 49.37 72.21 9396460, 16.*0 170.91 0.00 410024. 14.90 1'0.43 • • 11e70. 60.p00 dC,6] • 71.65 V102l46 16.40 IW059W1 0.00 618126. 16.91 1.)MI 11I • S. 60.SO 49.41 70.32 941326A. 16.41 171.06 0.00 418855. 11.91 170.65 1200. 60.00 68.67 69.97 941#134. 16.61 171.10 0.00 119095. 16.91 170.72 1210. 60.00 69.26 69.10 9422542. 16.61 171.13 0.00 419316. 14.91 170.78 1220. 60.00 68.59 68.97 9926626. 16.61 171.16 0.00 619521. 14.91 170.89 1230. 60.00 47.39 68.36 9629890. 171.17 0.00 419707. 1,6.91 170.89 1.':,. 60.00 47.53 67.66 9632346. ♦.6 171.18 0.00 919860. 16.92 170.93 1250. 60.00 66.60 67.26 9434211. 171.17 0.00 62000S. 1,9.92 170.lZ_ • 1260. 60.00 66.75 66.61 9434978, 16.62 171.1, 0.00 420113. 16.92 171.00 1270. 60.00 66.63 65.66 9434655, 16.42 171.11 0.00 420190, 1A.92 �M.02 • 1280. 60.00 63.17 65.22 9433504. 16.92 171.07 0.00 /20230. 16.92 171.03 • 1290. 60.00 61.76 66.31 9431168. 16.62 171.01 0.00 620235, 14.92 171.03 1300. 60.00 41.71 63.07 9427770, 16.41 170.93 0.00 620198. 16.92 171.02 • 1310. 60.00 40.72 62.39 9623571. 16.61 170.85 0.00 420124. 16.92 171.00 • 1320. 60.00 39.56 61.35 9419252, 16.41 170.75 0.00 420011. 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I1,08 176,62 • 1210. 60.00 49.26 69.10 298616, 14.07 136.19 1220. 60.OG 48.59 68.97 6355444, 14.98 233.73 100.26 297212. 14.06 135.76 6322201, 14.91 273,01 I00.001230. 60,00 47.3 6 . 6288573. 295809. 14.05 135.34120. 60.00 . 67.44 6254368, . 232.34 99.74 294404, 140 14.1250. 6000 46.40 G ,2, 14.93 231.62 99.47 292989. 14.03 134.48'260. 60.00 4". 14.91 230.90 99.20 29i564. 14,02 13 .04. .61 6185374. 14.90 230.15 98.92 90128. 14.01 133.601270. 60.00 44,43 65.64 6150092.1280, 60.00 ILBB 279.39 90.6J 288670. 14.00 133.15, 65.t2 6114220. f 14.86 220.61 9R.35 '87192. 1J.99 132.7L 1290. 60.00 41,76 64.31 6077601. 130U. 60.00 41.71 63.0) 14.85 227.81 98.05 285692. 13,98 132.23 1310. 60.00 40.72 62.39 6002769. 14.81 226.18 97.45 282613. 6002769, 11,81 226.I8 9J,4S 2 13.97 131 J6 1320. 60.60 39.58 6 .45 5964499. 14.79 225.34 97.14 01038, 14.95 130.79 1330. 60.00 39.80 60.24 59258011. 281018. /1.95 1J0.79 1340. C0.00 14.77 224.49 79.08 59.72 $88,019, 96.82 2791J8. 13.9/ 330.30 38.21 f1.76 223,64 13,93 129.79 1330, 60.00 96 :I 58.83 5047833. 1,4.74 222.79 9f•3I' 277814. 1360. 60,00 30.71 57.88 5900404. 14.72 221.92 4i,d6 276181. 13.92 179.28 1370. 60,00 38.26 57.52 274532. 13.91 18.77 1380. 63.00 5769313. 14.70 221.07 9.1,54 27297'. 13.09 37.66 36.79 5729999, 14.68 220.21 95.21 127.72 • 1390, 60.00 38.13 55.99 5690775. 14.66 27tI06. 1J.88 127,72 1400. 60.00 38.25 55.79 219,35 94.88 169534. 13.07 127.20 5651983, 14.65 218,31 94,56 1A 10. 00.00 17.63 55.21 Sb13220. tA,63 217.51 94,21 267864. 33.86 126,6) • 1420. 60,00 38.45 54.57 Sti74635. 14.61 216.82 93.91 266..00. 13.85 126,15 1430. 60.00 30.27 54.52 SS36568. 11.39 216.82 64,38, 13.84 125.62 IIiO, 60.00 37.69 54.11 3498613. 14.57 93.59 262881. 13.83 125.10 • 1450. 60.00 37.63 54.06 215.17 93.27 '61241. 13.81 124.58 • 5491810. 31.57 215,08 93. 161078. 13.81 124.52 VOL, IN VOL. O1,T VOL. TO CHANNEL VOL. OVER WEIR • tggtyYtt t/tY ttiltYiitttttip tttq gtstitltlttltgtq lift tl Uttttttr VOL 80% CULVERT itttittitt!lttlq gtitttl tttttlittYtitlttttttttitl2 S 17964014.00 1'r i?'8.00 7138060.40 6r 79119,gy :-11276.30 0 • Y�hf l f -226 �i. lleEo�� asp foa.� �Rtliaf�'eRr7'�i � .7e �s�cTZSI — SISi lenl*F�'�I Au3 151' �j xd CJ .�^ � 1�/ l�•t5(NQ�+tfk- Sr,.�r .Cfrt' bar�Y/a� Ge%: :;id"'i`-c•�('u • ���.^; �-w•rr�r.•�QSR (; JtrNA,rM� '� 6�33-3oS"Q .lOA%ES� • 79151•30 April 22, 1081 Public Works Denartment City of Renton 2110 Mill Avenue South Renton, Washingtcn 98055 ATTENTION: nick Mouahtnn Dear Dick: On Wil 14, 1981. a Greeting was held involving Jones Associates. Inc. and the City of Renton staff, Jones Associates was renresented by Ed Rudloff and John Walton, The City was renresented by Don Monaghan and Bob Bray. The Drincinal item discussed was the conveyance of off-site stomwater flows through the Proposed Fast Valley Road proiect (LID 31a), Jones Associates presented the results of a computer analysis of the •outing of flows thrount the contributing ba ins, into the large pond lyinn east of Highway 157, under Highway 10 through existinn culverts, and through the ornnosmd channel immediately west of Highway 167. In aeneral, the analysis indicated that the proposed scheme is technically feasit.r and that the calculated flows can he handled with accentable water surface elevations. A complete discussion of the analysis is presented in the attached report. At the conclusion of this discussion, it was tecided the city staff, utilizing the analysis performed by Jones Associates, moold prepare an application to the Washington Department of Transportation for their concurrence in the proposed scheme and for 11armission to construct the Proposed improvements withir, their right-of-way. The next item discussed was the prosecution of the ..roject during the time when WSDDT is considering the an- lication. Jones Associates was instructed to proceed to hrina the project to bid as quickly as possible, with the arovlsion that anv changes necessitated by WSDDT action will be handled by issuinn annronriate negotiated change orders to the constriction cnntraCtor. kt✓.E. � .,a�n c.. Page 2 Public Works Dept, Renton. B!21/A1 With this direction Jones Associates is proceeding to complete the plans and sbecificationi for the project as quickly as passible, How- ever, before we can establish a completion date the following issues mast be resolved: 1. P-9 undercrnssing of East Valley Road. Do we design this feature to be compatible with the proposed SCS project, or do we site it only for the imtediate need of the I.I.D.? if the former is chosen, we need specific design parameters from S.C.S. If the latter is chosen, we ,. st anticipate WSDOT action and establish design parameters on that oesis. 2. Southwest 19th Street drainage system. We have the followinq options with regard to the storm drainage system between the box culvert under Highway 167 and Rayniond Avenue S.W. a) Assume that the box culvert will be plugged at the upstrea^ end and make no cheme., to the present design. b` Assume that 'tit dischor,., from the box calvert will ee conveyed it pipes westerly alone 19th St.eet to Raymond Avenue, and then it ,in open channel to Springbrook Creek, This will require significantly larger pipe, than in the present design (actual sizes are undetermined at this time,`, and since the benefits will ar,rue to only a few properties, a special aisesa»eit fom,ula should be devised, �.) Assume that the City and/or the Au..tin Company will construct an open channel to convey the box culvert discharge to Springbruok (reek. if this is done, the stone drainage systew ran he re- designed to discharge into the channel at convenient points, and , c-nsiderable sayinns can be realized, It would, however, require ,it undercrossinq of either S.K. P)th Street or Lind Avenue S.W. Omce these issues are resolved, we will prepare a schedule for the completior of the plans and spetifications for the project. Very truly yours, JONES ASSQCIATES, 'NC. Edwin J, Rudloff, P.E. Project Manager At,- E' it CTY OF PENTON DETENTION POND SIMULATION The purpose of this study was to explore the operating parameters of toe proposed drainage improvements along SR-167 from S.W. 41st Street north to 1-405. The existinq drainage system consists of three drainage basin sources flowing into the wetland/pond area lccated south of 1-405, east of SR-167 and north of S.M. 41st Street. The runoff Collected in this pond then flows through several culverts under SR-167 to a channel along the western margin of SR-167. This channel has few outlets except through the developed properties inmediately west of this channel. Proposed improvements consist of: 1) dredging and wnbankment of the west channel to improve the flow ..haracteristiCs north to the proposed P- 9 channel alignment and 2) excavation of a channel to connect the Panther Creek drainage with the main pond along the eastern margin of SR- 151, 3) construction of a weir at the P-9 channel which would maintain a minimum water surface elevation of 12.00 feet. Because of thm comrlexity of this system (3 basins, 2 ponds, 5 ;inverts, 1 weir) it was necessary to simulate the operation by avidelinq with a computer program. The program which was developed by Jones Associates, Inc. analyzes each of the drainage basins, pond elevations, culvert flows, weir discharges at one minute increments for a given storm event and then vports the status at ten minute intervals. The results, which are attached, were obtained by making the following d", Umptions: 1) Flow from the Panther Creek basin (05) is channeliaed into the main pond of SR-167. 2) All of the culvert flows are calculated from Ma,ining's equa- tion with a friction n • 0.04. 3) The flow entering the pond from Renton Village Shopping tenter (0) is defined by the runoff hyx4rograph from this drainage basin except that the flow limits out at 60 cfs and rem^ins constant throughout the remainder on the storm (24 hours). 4) Flow velocities in the west channel are low and therefore this "channel" elevatior: is controlled by the weir at the P-9 chan- nel, i.e., the west channel functions as a pond. 5) The volume of the eastern pond is caluclated on the basis of a 49-acre ar„-. with vertical sides. 61 The volume of the western channel is based on the assumption of a 30-foot width with vertical sides. 1) The box culvert (#10) which discharges onto the Austin co. property is assumed to have a constant tailwater elevation of 12.00 feet in Run 01. In Run 02 it is assumed that this culvert has been plugged. 8) The weir at the P-9 channel is assumed to be 25 feet wide and sharp crested, with weir coefficient of 3,35. i) Run #1 is the analysis of the system given a 100-year storm with wet antecedent conditions. The box culvert is assumed to be operating as described in assumption #1 above. 101 Run v: is the analysis of the system given a 100-year storm with wel antecedent conditions. The box culvert is assumed t' have been plugged. Run #1 reveals several characteristics of this system. First, the pond nn the east side is very effective in attenuating the peak flow from the three contributinq drainage basins. Peak inflow is 742 cfs and the peak outflow is 355 cfs. Second, it appears that the max'.,,wm water surface elevation 15.30 is well below the roadway elevation (t24 feet). Third, the weir is capable of discharging sufficient quantities of flow to prevent flop'+ng of Of oevelped properties alunq the western margin. Fourth, from the peak weir discharge, the velocity in th, west channel will be in the vicinity of 1 foot/second which confirms the assumption that the channel is acting as a pond are that erosion along the highway embankment will not be a significant problem. Run e2 is very similar to Run 11 except that the box culvert (i10) has been eliminated. All of the flow is directed through the pond to the proposed channel. In this run we see increased maximum water surface elevations, however, they are still below the roadway and developed property elevations. The State D.O.T. design drawings for SR-167 show five additional culvert crossings (#1. 02, ►7, 08, ►9) from the pond to the west channel. Cul- verts bl and e2 have been ignored because the proposal calls for the Panther Creek drainage to be routed to the pond on the east side. Cul- verts 0, f8 and M9 could not be found by the survey crew. If any or all of the culverts are included in the model, we would see less dramatic increases in water surface and a generally more desirable (however not necessary) performance of the system. CITY OF RENTON DETENTION POND SIMULATION RUN t 1 EXECUTION DATEIAPR 13,1981 ASSUMPTIONS! CULVERTS 43,44.45,46, AND $10 FLOWING FROM FOND 100 YEAR STORM YET ABTF,CEDENT CONDITIONS TIME BASIN 43 BASIN 44 BASIN 45 POND STORAGE ELEVATION WTO CHANNELS U CULVERT) CHANNEL STORAGE ELLEVATION ').WEIR) !lgttlt137t}/tttl7lllft#l77fl gttt)7ttltt}7t.r/ltt7l!#lil/t7!}iitit/tJt7}IJJfN i!}tttl/iBBB77lBI7U itltBttJt/7lti!}iitJ/i ttttliriilit)ttia tt7lt 70, O.Ov 0.00 0.00 0. 12.00 0.00 0.00 01 1240 0.00 J0. . .00 0.00 0.00 0, 12,00 0 70 0.00 0. 11,00 0.00 40. 0.00 0.00 0.00 0. 12,00 0.00 0.00 0, uC V.00 �0. 0.00 0.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0.00 0. 0.00 0100 0.00 0. 12.00 0.00 0.01 0. 12.00 0.00 70. 0.00 D.00 0.00 0. 12.00 0.00 0.00 0. 12.00 0.00 80. 1.00 0.00 0100 0. 12.00 0.00 0.00 0. .:.'"io 0,00 90, 0.00 0.00 0,00 0. 12.00 0.00 BOO 0. I..J) 0.00 100. 0.00 0,00 0.01 -3. 12.00 0.00 0.02 0. 1-Do 0.00 110. 0.00 0.00 0.01 -3. 12,00 0.00 o,03 0. 12.00 0.00 120. 0.00 0.00 0.02 -63. 12.00 O,00 0.04 4. 12.,0 NOR 130. 0.02 0.05 0.11 -112. 12.00 0.56 0.04 20. 12.00 0,12 140. 0.05 0.10 C.21 53. 12.00 0.00 0.22 30. .2.00 0,30 150. 0.08 0.15 0.11 141. 12.00 O.00 0.41 i;.0o 0.05 16:. 0.21 0.39 0.59 345. 11.00 2.14 0.80 s4. I:.00 1.58 11D. 0.35 0.65 0.89 1020. 12.00 0.00 1.20 155. ;.00 ,1,44 180. 0.49 0,91 ills 1667. 12.00 0.011 1.55 109. 1.1.00 :.04 190, 0,80 1.50 1.73 2574. 12.00 3.98 2.01 209. 12.?: i.01 200. 1.13 2,08 2.31 4026. ),.Do 5.40 52 its, 12.s'i 1.4^ 00. 1.4t 2.63 2.89 5997. 12.,0 6.60 3.07 43v. 12,0G 1.16 0. 2.00 3.60 3178 8746. 12.00 4.77 3.46 504, 12.00 1,93 230, 2,54 4.47 4.71 11294. 12.01 6.38 4.17 692. 12.00 t.JB 240. 3.09 5.17 5,58 14567, 12.01 7.90 4.74 906, 12.t1 1,s5 250. 3.88 6.51 6.92 19790. 12.01 9.16 5.3R 1158, 12.N. 3.3t 260. 4,63 7.65 slog 24214, 12.01 10.59 6.11 1480. 12.0. 3, vo 270. 5.38 8.31 9.27 30631. 12.01 12.06 6.87 1854. 12.01 4.6, 200. 6.37 10.11 10.77 37181, 12.02 13.67 7,67 2287. 12.02 5 290, 7.28 11.44 12.32 46828, 12.02 15,40 8152 2799, 12.02 6.0 300. 0.18 17.39 13.71 56721, L.03 17.14 9.30 3.70. 12.02 6.85 310, 9,32 14,17 15.41 67895. 12.03 I8.99 4003. 12,03 7.08 320. 10.33 15.53 17.14 00569, 12.04 2(.91 .1.19 4719. 12.03 8.58 330. 11.33 16,34 18.69 94310. 12.04 22 84 12.i2 5494. 12.04 9,49 340. 12.52 18.06 20.52 109292. 12,05 24.83 13.04 6326. 12,c4 •0,43 350. 13.50 19.26 22,38 1111'+37. 12.06 26.87 14.00 7233. 12,')b .:.4 i. ° 12.07 28,07 14.95 919'+, 12.114 *' ° I ...u 380. 16,79 23.18 27.94 102050. 12.09 33.08 16.87 10307, .2,07 14.N 390. 17.81 23.96 29.64 203419• 12.10 35.19 17,94 11463. .2108 1.5,50 400. 19.17 26.11 31.68 22621B. 12.11 37.32 18.81 1,2679. '2.09 16.57 410. :0.30 27,66 33.76 2;09*33, 12.12 39.62 19.91 13901, 112,10 420. 21.42 28.6: 35.52 24647, ,2.13 41.93 20.01 35]Sl. 32.71 18.83 440. 23.06 31.39 37.82 304245, 12.14 44.11 21.83 36705. I' .I2 i9,9F 410. 24.51 33,32 40,23 334247, 12.16 46.6, 22,89 18334, ,1.13 21,20 450, 25.94 34.45 42.70 365047. 12,17 49.01 460. 27.77 37,56 44.91 23.9J 59972. 12,14 22.4! 2 . 12.1 32.56 25,0. 23690. '2.15 23,71 4)0, 9.30 1Y,63 47.64 434OV2 4780g2, 22.20 54.20 26.14 21573, :2,16 25,03 480. 30.91 40.94 50,00 47440'. 12.22 $6,83 27.27 25417, 12.18 26.39 490, 33,08 44.94 53,08 515428. 12.24 SY,58 28.43 27525. 12.19 27.78 500. 35.11 41 J$ 56,40 560126. f2.26 62.51 29,61 29712. 12.21 29.24 510, 31.13 49,41 59.22 607399, 22.29 61.44 30.81 32047, 32.22 30.76 520. 40,40 55.Db 63.5, 45874". 12,31 6M,,7 32,14 34516, '.24 32.32 no. 43.35 59.56 68.22 7tS929. 12.34 72.00 33,50 37219. E2.26 JJ.48`e 40, 46.28 62,87 12.24 777680. 1.,36 73.52 34,92 40:50, 121l8 35.14 Sf, $1.44 72.12 79.64 946S19. 12,40 19.36 34.41 43W. ±2.30 11.60 U. $6.40 79.84 85.56 g23346• 12.43 63.69 30.0R 46856. ;2.33 3q,6:70, 59.69 85.89 91,82 tot UB4, 12.47 80.19 39.82 SR7Atl, 12.15 41.80 590, 60.00 120,44 113.67 1117297, 12.52 73,64 41.80 55160, 12.J8 44.17 590. 40.00 154,90 137.57 12 W9. 12.59 100,85 44,27 40554. !11.42 41.01 600. 60.00 186.58 160.54 1421067. 12.47 108.92 47.10 61130. „47 50.15 610, 60.00 n7.65 181.31 16,9081. 12.76 117.94 5R.24 93969. 12.52 $4.15 620. 60.00 264.96 214,F5 1B51686, t2.87 L'7,04 57.N 838dS. L.SB $R.41 61U, e0.00 299.00 Nt.JO 2275249, 12.99 137,93 '0.4" 90$0. 12.65 63,06 640, 60.00 336.52 267.89 2409640. 11.13 148,5° A1.17 105422, 2°,73 69.03 650. 60.00 J32.77 295.24 '730801, 13.2E 159.44 65,3f 117839, lY,B2 I.1.27 660. 60.00 344.)5 320.54 3062Y16. 13.43 169.75 69.111 13107. 12,91 7R,65 670. 60100 338.45 J44.41 3398809, 13.59 179.38 72,94 14002. 13.00 84,02 680. 60.00 325.30 3.3.63 373.'772, 13.75 1B 8,S4 76,52 158,79. 13.10 04,32 690. 60,00 305.03 383.11 407:730. 13.91 197,08 79.92 172528, 1J,20 94.47 700. 60,00 280.101 381,63 4395068, 14.06 204 J7 83 06 186321, 13.29 99.45 710. 60.00 267.00 318.96 470004:. !4.20 211,61 85.93 1�%31, 33.39 304.16 �0. 60.00 243.U8 373.13 4984967. 1.4.33 2t7.63 88.51 , 13,48 lO8.S8 0, .60.00 222,18 363.02 5148120, 14.46 222.90 90.87 ''124761, 13.96 1!2.69 740. 60.00 198.18 353.18 5488068. 14.57 227,48 92,9e +r1 N. 13.64 114,47 750. 60,00 ^• 341.46 5706060, 14,67 231.40 94,81 244.'ti;, 13.7} t19,Y3 760, 60,00 31"1 5899925. 1,4.26 234,71 96.43 256469. 11.78 123.06 770. 6�,.90 IeV.24 314.89 4070656• 14.44 237.46 97.04 265293, 13.84 12S.a6 780, 60,00 119,01 300.53 6221393, 14.91 239.78 99.06 273", 33.90 128.34 790. 60.00 113.27 285.13 635751% 14.95 241,96 100.15 2B0359, 11.95 110,58 800. 60.00 l05,22 270.60 6479419. 15.03 243,10 101.12 206,101. 13,99 132.57 810. 60.00 100.01 754.84 6387211. 25,08 :45.28 101.97 292S44. 14.03 134.34 820. 60.00 98,19 238,26 6682384. f5.13 246.63 102.72 29'694. 14.07 135.91 930. 60.00 94,02 223,Ot 6763514, 15.17 247.71 103.36 30"279. 14.10 13',30 940, 6040 90.46 206.A" 6816264. 15.20 246.67 303,91 306125. 1-4,i3 i'w.53 850. 60,00 F9,31 190.02 6695236. 15123 149,35 20413, 309850, 34.15 • n,�.9 660. 60,00 86.08 175.20 6943306. 15,23 .83 104.74 317815, iA.;7 890. 60,00 7b,98 13A.64 7023027. 15.29 250.07 105.36 319110. 14,22 142.15 900. 60,00 75.84 130,52 7035344. 15,29 249.91 105.46 320359. 14.22 142.72 910. 60.00 75.02 123.94 7042723. ,SJO 249.83 105.52 321288, 14.23 143.00 920, 60.00 72.62 t20157 7046312. 15.30 249.66 105.54 321954. 14.24 143.20 930. 60.00 70.12 116.72 7046420. ".30 249,46 105.55 322399. 14,24 141.33 940. 60.0D 69.96 1.12.38 7043382. 15,30 249.22 105.33 322653. 14.24 143,41 950. 60.00 69.20 109.97 7037955, 15.29 248.97 105.49 322746. 14.24 F43,43 960. 60.00 66.35 107,09 7020028, 15.29 248.68 105.43 32.. 'O1. 34124 143.42 970. 60.00 66.29 163.79 7019839, 15,29 248.36 105.36 322530, 14.24 143.17 980. 60.00 64.57 101.91 7007804. 15 28 248.02 106,27 312250, 14.24 143.29 990. 60.00 62154 99.47 6913549. 15.27 247.64 305.16 321871. 14,24 143,17 1000. 60.00 62.28 96.60 6977231. 15.27 247.23 105.04 321395. 14.23 143.03 1010. 60.00 60.35 95.06 6959217. 15,26 246.79 104.91 320829, 14.23 142.87 1010, 60.00 50.11 92195 6935161. 15.25 246.30 104,76 320179. 14,22 142.67 1030. 60.00 57.65 90,41 6917160. 15.24 245,78 104.59 319413. 14,22 142.45 3040, 60.00 55.97 98.93 6893674. 15,23 245123 104.42 339627. 14,21 142.21 1050. 60.00 54.09 36,84 6068175, 15.22 244.65 104.23 317735. 14,2t 141.94 1040. 60.00 53.99 94.32 6941436. 15.20 244,04 104,02 316767, 14,.^0 14,46 0. 60,00 52,67 02.@6 6913197. 15.19 243.41 103.81 315731. 14.11 /a1.3`, 0. 60.00 51.16 80.98 6783682, 15.18 242.75 103,58 314630, 14,18 341,02 1090. 60.00 51.43 79.01 675,914. 15.16 242.07 103.35 313464. 14.18 140,67 1100. 60.00 50.47 79.03 6721538. 15.13 241.39 103.11 312251, 14.17 140.31 tile. 60.00 49.33 76.S9 6689196. 15.13 240.70 102.86 310990. 14.16 139.93 1120. 60.00 49.96 75.08 6656222. 15,12 239.99 102,61 309687. U.15 139.". 1130. 60.00 49,37 74.55 6623126. 15.10 239.lip102,35 308353. 14.14 139,14 1140. 60.00 48,59 73.57 6589573. 15.09 238.38 102.0 106994. 14.13 11: 73 1150, 60.00 49,60 72.51 6555981, 15..7 23.`.97 1D1.83 307614. 14.1, 118.31 1160, 60.00 49.37 i2.21 6522496. 15.05 237 107.57 304223. 14,11 137.09 1170. 60.00 48,63 71.45 6490897. 15.04 236.49 101.31 30"-,6. 14.10 137.47 1180. 60.00 49.63 70.60 6455282, 15.02 235.79 101.05 1014-2. 14109 117.04 1190. 60.00 49.41 70.52 6422092, 15.01 235.11 100.79 300017. 14.08 134.62 1200. 60.00 48.6.' 69,97 6388812. 14.99 234.43 100.53 '98616. 14,07 136.19 1210, 60.00 49.26 69,10 6355444. 14,98 233.73 100,26 297212. 14,06 115.76 1220. 60.00 48.59 69.17 6322201, 14.96 23:.04 100.00 295909. 14.05 135,34 0. 60.00 47.39 68.36 6288573, 14,94 232.34 99.74 '94404, 14.04 134.91 0. ,60.00 47,53 67.44 6254569, 14.93 231.62 99.47 292999. 14.03 134.48 1250. 60.00 46.40 67,26 62.0404, 14.91 230.90 99.20 M 564. 14.02 134.04 1260. 60.00 44.75 66.61 6195574. 14.90 230.15 98.92 290129. 14.01 133,60 1210. 60.00 44.43 65.64 6150092. 14.08 229139 98.63 210670. 1440 03.15 1290. 60.00 43,17 15.22 6f 4220. 14.86 229.61 98.35 2b7112. 13.99 132.70 1290. 60,00 41_.76 64.11 6077601. 14.8S 227,91 98.01, 285691. 13.98 `12.23 1100. 60,00 41 71 63.07 6040364. 14.83 227.00 97.75 284164, 11.97 t J6 1310, 60.00 00.72 62,39 6002769. 14.81 226.18 97.45 182613. 13.96 131.20 1320. 60.00 39.50 61.35 5964490. 14.79 125.34 97.14 2F!03@. 13.95 13C.79 1330. 60.00 19.90 60.24 5925800. 14.77 224.49 96.02 ,"430. 13,94 130,30 1340, 60.00 .08 59.72 .497019, 14.76 223.64 96.51 277819. 11.93 129,79 l350, 60.00 s6.21 58.03 5947833, 14.74 222.78 96.18 276194, 12.42 129.29 1360, 60.00 18,71 57,96 5608404. 14.72 721.92 95.86 274532. i3.91 Cb,77 13%. 60.00 3@,26 57.52 5769315, 14.70 221.07 95.54 272@72, 11.99 7;1',?b ^ B 20. 1 95.21 271206. tLall 127.72 1400. 60.00 3P.25 55.79 5651983. 14.65 210.51 94,:6 't.B64. 13.86 126.67 1410. 60.00 37.68 55.21 5613220. 14.63 217.67 94,24 266300. i3,8'3 1.16.15 46 1420. 60.00 38.45 54,57 55735. 14.61 216.P2 93.91 164,38, 11.84 1 5,6' 1430. 60.00 38,7' 54.52 5536568, 14.59 215,99 93.59 2628B4. 1,3.93 1"5.10 1440. 60.00 37 54.11 5498613. 14.37 115.17 93.27 261^41. 13.P1 724,,,H 1450. 60,00 37.63 54.06 5494810. 14.57 215.09 93,24 261078. 13.81 1:4.57 VOL. IN VOL. OUT VOL. 70 CH6NNF'_ VOL. OVER WEIR VOL, PDX :ULVERT tgttYq tlitttt7 ttt/titiQ ttR tlititttttitttttitYtt ttYttlt tttlttttttitt#t!t#tttYittttt/!tt!ltttltittttttlt/tt tt ttltitttt 17964014.00 12479338.00 7138060.40 6879119.80 5341276.30 • CITY OF RENTON DETENTION FOND SIMULATION RUN EXECUTION DATE:APR 15,1981 ASSUMPTIONS: BOX CULVERT (CULVERT 430/ IS PLU41ED 100 YEAR STORM WET ANTECEDENT CONDITIONS TIME DASIN 43 BASIN 14 BASIN #5 POND STORAGE ELEVATION Q(TO CHANNEL) Q1 CULV'^Y) ltitttri ttY{tt#igt!lttllttltYt#ttlitYYt/itp;t4 Utq Ut;YlgY#ktt#t#lttttttti qii/lYttlYittltit CXAtNNEL SSTORR4 ;0tE#t;YE}LtLbE VA TI ON};tO#tf4tEt}I R>20. 0.00 atqt!!t}tt . 0,00 70. 0,00 0.00 9. 12.00 0.00 0.00 40. 0.00 0. 0 0• 12.00 0.00 0' 12.00 0.03 40. 0.00 0.00 0.00 0' 12.00 0.00 0.00 °' i2.00 0.00 0.00 00. 0.00 0,00 °' 12.00 0.00 °' 12.00 0.00 70. 0.00 0.00 0.00 0' 12.00 0.00 0.00 °' 32.00 6.00 80. 0.00 C.Oo 0.00 0' 12,00 0.00 0.00 0' 12.00 0.00 90. 0.00 0. 2. 0, 12,04 0.00 0.00 f 00 0.00 0.00 0.00 100. O.oO 0.00 0.01 0' 12.00 0.00 0.00 0. 12.00 0,00 110. 0.00 0.00 0,01 -1. 12.00 0.00 0,00 0' 12.00 0,00 120. 0.00 0.00 0.11 0a 05?• 12.00 0.0C 0.00.57 0.00 °' 12.00 0.00 130. 0.02 0.05 . -143. 12.00 -1• 12.00 0.06 140. 0.05 0.10 2 -91, 12.00 0.11 :2.00 0.2J 160. 0.08 0,15 0..1 60. L'.JO 0,00 0.00 1 22.00 5.0: O.59 188. 0.00 3. 12.DD 160� 0.2i 0.39 0,59 12.00 0.00 0.00 0.06 170. 0.35 51". 12.00 D.95 14• 12,00 0.18 O.91 1.18 1%8. 2 0.00 69. 12,00 0.51 I dO, 0.49 0.91 1. 00 0.00 0.00 190. 0.8o 1,18 2154. 12.00 2.49 91. 12,00 0�62 1.5b 2 U0. 1.13 2.08 �•23 3901. 12.00 0�00 0.00 21C. ]2,00 1.tlf 210. 1.46 2.63 2,89 5891. 12.00 0.00 0.00 0.00 301 12.00 1.P5 �0. 2.00 3.60 8501, 12.00 2.72 30A. ::.00 1.38 0' ''54 4,47 3.78 12000. 12.01 2.93 0.00 554, t2.0J ,.06 240. 3.09 4,71 16481. 12.01 749, :2.01 2.51 250. 3.88 6.51 5'58 218B1. 12.01 4.51 0,00 1016, 12,01 ;,JR 6.82 28469. 12,01 S.OJ 0.00 1340. '2,01 3.�70 2e0, 4,63 7.65 0100 270. 5.J8 9.51 9.2� 36542. 12.02 5.91 0,00 1726. 12.01 4.39 280. 6.37 10.11 458481 12.02 6.03 `1 '• 12.02 R.15 290. 7.20 11.44 10.?7 56631. 12.03 7.84 0.00 273€. 12.02 5.97 300. 8.18 12.32 32.39 13 71 69190. 12.03 8.92 0.00 3352. 12.02 6.83 310. 9.32 ® 3• 12.04 4064. 12,03 U.53 15.41 10,01 0.00 4854. „6 330. 11.33 16.34 17.14 16437, 12.0E 12,40 0.00 12,04 C.N J 70. 11.33 116457, 12.05 12,40 S'•3' 1:.04 a„5 18.06 340. 12,52 1B.Oe `0.52 135543. 12.06 17.62 0.00 6694, 12.05 fb.83 350. ;.So 19,26 22.38 156290, 12.07 14.90 0.00 80.00 ?71. 12.05 11,91 ?60. 14,1' 19.91 23.98 `79933. +2.08 16.22 0.00 0871. ',06 :?,96 02936, 12.10 17.51 10093. 12.07 14...4 0.00 11385. 12,0E 0.00 127SQ, 12,09 16.ea 10 :j 390. 17.01 23,96 29.61 400. 19.17 26.11 31.66 116170.720. 12.15 2233,10 0.00 17370. 410, 20.J0 .7.66 , 1. 33 .10 O.OD 12.31 1/,16 410. 20.30 28.66 33.52 3SOM. 12.16 24.59 19102. 12.12 2:.78 420. 21.42 305376, 12,10 U. 0.00 19102. k2.13 2:,78 31.39 J).82 422690. `2.20 27,6, 0.44 ,OV12, ,35 13.td 440. 24.$1 33.32 40.23 , , ;2 0.00 22805. 12.16 24,51 450. 25.94 34.45 42.30 46.887. 12.22 29.2a 0.00 2 , 460, 27.77 ]7,50 505188. 12.24 30,98 40,5. :2,37 :5.94 170. 29.]0 44.91 550111. , 0.00 26956. 1219 2 J9.63 47.69 12„6 3„le 0.00 291BS, Lit 480. 30.81 40.94 590268. 12,29 34.33 0.00 J9103, !,,20 28,9P 490. 33.08 44.94 50.00 64879'. 12.30 36.09 , 12 30.44 500, 35.11 53.08 )02534, l2.33 0.00 34044. .24 32.02 47,.'S $4.40 39,89 O.OP J664B. 12.25 33.6] 510. 17.I3 49.41 37 '2 )AOSSB. 12.36 39,B4 520. 40.40 821, 19, 12.39 43, 0.00 29425. !2.27 35.31 570. 13.35 59.56 63.54 887546. 12,42 4J.95 0.00 4235e. ,29 37.04 d8,.. 959873, 12.45 46.25 0.00 4'41A, }1 40.70 510, 46.20 62,F• 72.24 1037459. , 0.00 48?18. 40 JO 350, $1,44 72.12 73.64 1..19 1@,d0 0.00 560. 56.40 79,84 31..Bd0, 1-53 5l,16 52359, ::`,7a a2,a6 83.36 1.19078. 12.57 $1.OS P,00 S6S9L !;,}9 44.T2 0. 59,69 BS.tlV 91.82 1324002. 12.e2 54.03 0.00 60i10. :,i2 46.4J 0. 60.00 120.41 590. 40.00 154.90 113,07 1446521• 12.62 d0.67 0.00 1S07L 1t,45 49,30 137,57 1606434, 0.00 'G121, 1:.49 600. 60.00 186.58 12.75 65.47 160,51 1745021. 4.04 76296. 610. 60.00 227.65 187.31 2 12.84 70.@2 0.00 !=•53 5d,79 620. 60.00 261.96 t14,85 `275267. 12.94 0.00 V1@9,,, 630, 60,00 9 75,67. 13.0' 8J.13 0.00 "'4i °'•i'@ 2 6.00 211.89 2566755, 13,20 89.84 0.P0 1C,620. , '1 an.79 e10, 60,00 336.52 26),g4 ll,d�i•650. 60.00 351.77 295.2 289k154, 13.35 V6.80 0.00 1 3244640, 13.52 103.97 0,00 138431.660. 60.00 344.75 320.54 3411309. 13,69 15tl131. ;,v6 670. 60.00 330.45 344.41 3.6 116.74 0.00 , 1.46 J9838a9, 116 N 152JJ3. 680. 60.00 32 14.04 '•06 "c.9'. 490, 60.00 5,34 368.aa 43a1S0t. 4, , @.00 !6703r, „., 6 t,a7 305.03 383.17 1 J4 1L.64 0.00 1821C1, � ,'00. 60.00 QJ70(d, U.22 12@J4 C.00 .. •-'S c7.Vd 710. 40.00 7BB.15 381.6] 5101640. 14,39 133.68 O,QO 19731��. ;3,}7 1" ,n 67.00 379.96 5450449. '12446. :'',4A 1.,r,•.4 720. 60.04 243.08 t4,SS 11L 17 0.00 +ro2tl_,• .: � J�3JJ,t! 5790500. 400. e0,00 '•22,1@ 14.71 111.23 0.00 0• , 60.00 3a3,02 6090135. 14.e5 144.75 198.18 353.18 6378318. 0.00 255i J2. 1]1.750. 60.00 14.99 1N.JJ '173.96 341.46 4643810, 0.00 2a8513• 1J,9a ":n.BA 760, 60.00 133.04 13.1, 150.30 0.00 280835,770, 60,00 129,24 327.91 6886721, 15.2, 152,51 0,00 2921]14,BY 7107075. 15,33 1;,4.38 46, 2i,Pi 134.28 780, 60,00 119,01 300.53 T107893, 0.00 303028. !4.10 `�',5S 790, 60,00 113.27 15.42 156.01 0.00 } 285.13 7194467, , 12869. 14,!7 110,4V 000. 60.00 105.22 270.60 15,51 15, .53 0.00 321945, !4,24 14.t 2r. 814, d0.00 105.07 7667114, 15.59 150.94 0.00 330339, 820, 60.00 00.07 254.96 1825873. 15.66 160.20 0.00 238.,6 7972162, 15.73 JJ 809T. A3o, 60.00 94,02 223.01 161.35 0.00 345262 !a,a0 ea 840, 60,00 90.46 8106500, iS,80 162,38 331@7@. :4,44 . r 206,88 822848A, c 1 0.00 4 8�0, d0.00 g9,Si ., 3. ,BS 161„B 0,00 ' 190.0, g2J@eb2• 35I988. 880. 61.00 13.90 164.06 84.OA 17S.t0 . 0.00 36J550. tt?0, bO,Op 92.84 8437618, I�,95 1N.72 0.00 52 • . Ann. 159.60 W5,03. 318666. -14 I5,99 U5.26 0.04 3'a266, 14,59 ;y,,�4 8 076 7, l6.03 165.68 900. 60.00 73.84 130.52 073.444, 16.09 166,i0 0,00 910. 60,00 75.02 123.94 8789805. 394477, IA.67 361.18 920. 60.00 72.62 120.S7 16.32 166.75 0.00 387491. 14.69 162.03 930. 60.00 10,12 118.72 8843073. 16.:4 167,10 0 00 390231, 14,11 :62.79 940, 60.00 10,12 116.36 8892544. 16,16 167.43 0.00 392737, !4,13 !43,48 950. 60.00 89]B57). 16,IB 167.76 0.00 395039. 14.74 !ea,12 960. 60.00 a®,•0 109,97 8981800. 16.20 169.00 0.00 6.35 107.09 9022212. 39,165• 14.76 164.71 9)0. 60.00 66.29 16.22 168.38 0.00 399138. 14.77 165.26 980. 60.00 103 J9 9060002, 16,24 168467 0.00 400971. 1.4.78 165.76 61.57 101.91 9095577. 16.26 168.95 0.00 990. 60.OU 40:681. 14.81 166,2] 1000. 60.00 6'.28 96,60 9128358. 16.29 169,20 0.00 405761. 14,81 166.07 1010. 80,00 9159088. I6.24 t69.14 p,00 60.35 95,06 9187552. 16.30 169.65 0.00 40S76L 14.83 167.46 1020. 60.00 56.11 9 .95 92 409410. 14,84 167.16 1010. 60.00 57.63 90.41 9213331. 16.32 170.01 0.00 409613. 14.84 168.14 104" 60.00 55.97 88.93 9.3718t. 16.33 170.16 0.00 410703, 14.85 168,14 1050. 60.00 38928. 16.34 170.29 0.00 41170'. 14.86 169.71 34,09 66,81 9?78 MJ. 16.31 170,39 0.00 1060. 40.00 53.99 $4.32 9295808. 16.35 170.39 0, 41,707. 14.97 % ,:.71 1070. 60.00 5..67 92.86 9311700, id.36 170.19 00 i1,62L 11,97 1t7.9d 0. 60.00 Si.ld 0,00 4131SL Ir.87 :69,18 89.01 93255F8. 16,77 170.36 0.00 414202. 14.80 169.39 0, 60.00 51.13 79.01 9337910. 16.37 170.62 0.00 1i00. 60.00 50.47 78,03 9349150, 16,30 170.69 415482, 14.88 169,57 1110. 60.00 49.33 76.59 9358996, 16.38 170.73 0.00 416027. 14.89 169.89 1120. 60.00 49.96 75.08 9367741, 16.39 170.78 0.00 1130. 60,00 49,)7 74.5S 9375916, 16.39 41050. !4,89 170.02 1140. 60.00 48..9 73.57 170.8• 3.00 417344, 14.90 170.14 1150, 60.00 9399903, 16,39 170,90 0.00 417114. 14.90 170.24 Iv,eO 72,51 9J84903. 16.40 170.90 0.00 11 J649, 1r,90 170,31 1160. 60.00 49.3,1 72,21 9396460. 16.40 170.94 0.00 418024, 14.40 170.43 1170. 60,00 48.63 71.45 9402364. 16.40 170.96 0.00 41W4, :4,91 1180. 40.00 40 '0.60 9407809, 16,40 171,03 0,00 170.51 11r0, 60.00 .o' ,0.52 9413244. 16.41 17142 0,00 418599. ! 1.91 170.59 1200, 40.00 40.67 69.97 9418154. 16.41 171.10 0.00 419095. 14.91 170.65 1210, 60.00 49.26 69.10 419316, :4.91 170.72 1220. 60.00 9422342• 16,41 171.1 0.00 11931h, ;r,91 iJ0 J9 47.39 68.97 94,9890. 16.11 171.16 0.00 419511. 14,91 120.94 1210. 40.00 /7,39 68.36 9429890. 16.41 171.t7 0.00 119707, 11,91 1.'O.P9 0. b0.00 11,53 67.44 9432346. 16,42 171.18 0.00 419868. 14.92 "0193 0. , 60.00 46.40 67.26 9434211. 16.42 171.17 0.00 420005. 14,92 !70.97 1160, 60.00 44.7$ 66.61 9434978, 16,42 171.15 0.00 420115, 14.92 171.00 1270. 60.00 44.41 65.64 9434655. 16.42 171.11 0.00 41,0190. i4.9? 171.02 1280. 60.00 43.17 65,22 9433504. 16.41 171,07 1290. 60.00 41.76 64.1! 0.00 420210. !4.42 171.03 1300. 60.00 41.71 61. 9431168. 16.4• 170,93 0,00 420235. 14.92 171.02 U7 9427771, 16.41 170,13 0.00 420198, 14,92 1)1.00 1]30. 60.00 40.72 62,39 9423571, 10.41 I70.L3 0.00 1320, 60.00 39.58 61.35 9418252, 16.41 410011. ;4.92 170,97 1330. 60.00 39,80 170.65 0.00 420011. 14,92 170.47 1340, 60.00 39 60.24 W5338. 16.40 170,54 0.00 419669. 14.91 170.93 08 39.7• 9405335. t6.40 470.51 0.00 11 vde9• U.91 170.OB 1350, 60.00 38,21 38.03 9397760. :6,40 170.43 0.00 1360. 60.00 38.71 419195, lA.4t 1Jp.62 57.88 9389577. 14.39 170.19 0.00 419195, 1r.91 170,73 1380. 60.00 37.66 57.79 9381129, 16.39 170.19 0,00 418915, 14,91 7 1206. 60.06 10 Al 17.66 J9 937391, 16,39 170,07 0.00 419411. 14,91 170.67 •9 9367)OS, 16.38 169,95 0.00 4 7 i ! 0.59 18.8s. r,40 141C. 60.00 37.68 55.21 9343515. 16.37 169.71 0.00 417586. 14.90 170.31 1420, 60.00 38.45 54.57 9333463. 16.17 169.59 0.00 417214. 14,90 170.:1 . 193C, 60.00 19,27 54.52 9323499. 16.36 169447 0,00 416933. 14.89 146C. 60,00 37.69 56.11 9313223. 1,,,36 169.35 0.00 416444. 1-4.1119 ;,00 . 165C. 60400 37.63 51.06 9312164. 13.36 169.34 0.00 416406. 14.89 !6V,95 VOL. 1N VOL. OUT VOL. TO CHANNEL VOL, OVER WEIR VOL. FOX CULVERT tttl lttl tttttttt#t#tttgttYliq ttt#tttttttt tt#t Utt#t#tttt UtiYttt U ttttt#tt tttit##t1#tttttttt##ittiii##ttYtitgtttt#itt 17964014.00 8657203.60 0657203,60 8246526.30 0.00 • OF Rf4 • ® z PUBLIC WORKS DEPARTMENT DESIGN;UTILITY ENGINEERING 0 235 2631 MUNICIPAL BUILDING 200 MILL AVa.SO RINTON.NAtM.000" e P �rEp yx►�t�. 84ROARA Y. SMINPOCN April 11 , 1981 MAYOR Mr. J.D. Zirkle District Engineer State Dept. of Transportation 6431 Corson Avenue South Seattle MA 98108 Attention: Mr. Terry Burke District Location Engineer Subject: L.I.D. #314 - East Valley Road improvements Gentlemen: The design of the referenced project is nearing completion, and construction is scheduled to begin in late sur.ler. The drainage system for the project is designed only to drain the area immediately adjacent to the project and not transport the runoff from the upstream basins through the project. Therefore, in order to tinali:e tt, plans for the project, it is necessary that an interim drainage plan be developed for the upstream runoff which is capable of handling a 100 year design storm and still be compatible with the proposed P-9 Channel improvement. The City of Renton Engineering personnel in conjunction with Jones Associates Coniulting Engineers have performed a hydraulic analysis of the upstream basins which are intended to drain to the P-9 Channel. This study is the basis of our proposal to eliminating flooding on an interem basis along SR167 and the adjacent properties to the west and still be compatible with the SCS plan for the P-9 Channel, The proposal would be economical and bene- ficial to all parties wh, are ur could be adversely impacted by the improperly controled drainage that now exists. Basically, the proposal is as follows: (Please refer to Exhibits A. B, and C attached) I. Construct a channel of sufficient tile, depth, and grade between Lind Avenue S.W. and East Valley Road within the designated right- of-way of the proposed P-9 Channel to carry a 1oC year storm. As a result of filling and the construction of SR167, a channel has been created which we propose to clean and dredge to elevation 10.0 and widen as needed to obtain the required capacity for the 100 year storm (see Exhibit "B"). Mr. J.D. Zirkle April 21 , 1981 Page 2. 3. Provide a weir at the north end of the north-south channel (see Exhibit "A") to maintart a dead storage water surface elevation of 12.00 on both sides of SR167. The weir would be designed to pass the 100 year design strrm while creating a maxi- mom water surface eleve,4oi of 15,3 to 16.4 on the east side of SR167, dependino on whether the k.C.B. culvert crossing SR167 north of S.W. lyth St. (culvert Hv.7) is utilized nr abandoned. .he maximum projected flow from the isin contributing to this culvert is approximately IDO CFS. T1+ two options available at this time to accoamolate the flow cram this basin are as f,l l ows 1. Provide a drainage system to transport the runoff t0 the west; I.e.; by open channel across private property, or a closed system in East Valley Highway and west along S.M. 19th St. to Springbrook Creek. Either method will result In substantial cost to the LID or; 2. Abandon the existing R.C. box culvert and direct the runoff south along the east side of SR167. This would result in raising the water surface elevation approximately one foot higher than utilizing option one, or elevation 16.43. During extreme wet conditions the ponded water surface east of SRlo7 has been observed to be as high as elevation 17.00. This is due in part to the obstruction of the cutlet ends of the freeway culverti by fill operation, debris, and va"tation. The study referred tt herein indicates that by performing thr wwk as proposed, it would have the effect of reducing the maximum water surface elevation east of SR167 during peak storm; while maintaining a constant water elevation during dry conditions. Although the technical data has only been touched on lightly,we would be more than happy to discuss 11. 44t.h you in greater detail, However, we would like your reaction o the cuncept of ttw proposal and what prohiems you may foresee, If you would like to arrange a meeting or would like additional information, please contact Dun Monaghan or Robert Bray at 235-2631. Very truly your,., icha�Houghton Acting Public works Director RB:DM:ckd Attachments ct: Jim olsor Ed Rudlo, j,. IOn... 0:. fill 7,•, + 1N 0.. t• 1. 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I1.Ie UR.ac UK II 10,IT lot", N11gOtttixlTlt»1p ltftl H11a11,1j rKt Ml1, 111 ta1t111tt 10111 tltelllHbtgltt/11/110maItiIIHNTeN Ueir"Wit11},All/tAgbA/14 , Na17a3,10 1{I111I./a I:utu,la tI04t111ti1 e,00 a s a • i ,f �. ,� i � � A 74 -X✓. i nt ems, f � 1 a w„IYv ��v t%K 1lFVrat(lti I)I VAR 1.titl'\T O1 1 R 4NS)R I ATKNv May 14, 1981 Richard C. Houghton Acting Director of Public Works City of Renton Public Works Department 200 Mill Avenue South Renton, Washington 98055 Dear Sir: We have reviewed the proposed LiD No. 314-East Valley Road Improvements Channel Plans you submitted for our review April 21, 1981, Our comments are: 1. Sections 2 and 4 show undercutting of the SR 167 embankment. We would prefer the side slope of the highway continue at its present slope to the flow line intercept of your proposed channel, if this undercutting is required because of your design we suggest any undercut embankment be protected by light, loose riprap. 2. Access for maintenance of the LID channel will not be allowed from SR 167. 3. The wire fence along the west side must be relocated, preferably on the hinhway embankment above maximum hiqh water. Portions of the fence have been removed or filled over by the writ side owners. The limited access must be maintained, therefore some new sections will be required. 4. Maintenance of the new channel will be by the City of Renton. As such, we recommend a maintenance road by built on the west side of the channel. 5. Private developers have filled the numerous drainage ditches draining west of SR 167. The Washington State Department of Transportation's culverts were placed in these ditches to perpetuate existinq water courses. Due to this activity, our culverts have been subject to siltation. We therefore expect these culverts to be cleaned as part of the LID, otherwise water will pond on the east side without adequate relief. 6. The reinforced box culvert at the Renton interchange on SR 405 drains an area lying east of Talbot Road up to and includinq portions of SR 405 and SR 515 (benson Road). We are opposed to plugginq this culvert since the natural flows are to the west. The City of Seattle placed a water line and access road in the vicinity of S.W. 19th Street a short-time ago and placed two small culverts parallel to SR 167. Heavy siltation and turbid water have been observed at this site in the area you described in Section 3, subscript 2. We would prefer the box Richard C. Houghton May 14, 1981 Page 2 culvert remain in operation and d channel be built from this box culvert south to the proposed P-9 channel along the west side of SR 167 or the existing channel . 7. The proposed relief ditch in the viciiity of S.W. 39th Street (South 43rd Street Interchange) is a good solution to relieve floodings recently occurring at that site. B. The Washington State Department of Transportation is willing to entertain either an agreement or franchise with the City of Renton for your use of portions of our right-of-way for the proposed channel. Submittal of pertinent data will be through Mr. Harry Semenock, District Utilities Engineer, 6431 Corson Avenue South, Seattle, Washington 98108. Mail Stop C81410. Thank you for the opportunity to review your preliminary plans. Richard Johnson of our Hydraulics Section (764-4289) is available to meet with ,you in the near future to discuss the observations noted-above as well as any other points you may wish to discuss. Very truly yours, J.D. 21RKLE, P.E. District Administrator D.L. HOFFMAN, P.E. District Design Engineer RFJ:Jcw cc: Harry Semenock 'rh a•-^ :r 9 e u , N 0 bx Vt1i ra u.,s ._,f �•^' ,fir +p • 3s' r • ENDING OF FILE FILE TITLE Proa - �sD E UPA 4y y � &A4&k;cs oC� s� Qra.nn%L.