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HomeMy WebLinkAboutDrainage Reports - 09/11/2007TST �e { � v 1 748 Whalers Way Fort Collins,.CO 80525 970.226.0557 metro 303.595.9103 fax 970.226.0204 TST, INC. CONSULTING ENGINEERS Traci Downs Larimer County Engineering Dept. P.O. Box 1190 Fort Collins, CO 80522-1190 Re: Clydesdale Park Grading Compliance Project No. 0957.0002.00 Dear Ms. Downs, 6. September 11, 2007 C Q SEP 12 2007 fy,u. We are pleased to submit this Letter of Compliance for Construction of the revisions to the Clydesdale Park P.U.D. Second Filing dated 5/29/07 on sheet 9A of 29. The revision shows the construction of a stormwater conveyance swale, a drop structure, and a pan at a 0.3% grade from the existing outlet of the adjacent site to an existing RCP pipe onsite. The record as -built construction drawing submitted August 9, 2007 reflects the horizontal and vertical survey information recorded in the field of the stormwater conveyance swale. Due to field visits by the county during the time of the as -built submittal, it was apparent that the pan was working to convey stormwater flows, yet the site was still in need of revegetation and the swale was silted in from the recent storm events during construction and the silt needed to be cleaned. It was agreed that this work would be done and a field .visit was set to verify that the final cleanup was completed and vegetation was established. Per the field visit Thursday, September 6, 2007, attended by Traci Downs, Mark Levesque, and myself, it was apparent that the 5/29/07 revisions to the Clydesdale Park P.U.D. Second Filing was completed and functioning properly. The cleanup discussed previously was completed and the reseeding of the site has begun to establish vegetation. In my opinion, with typical maintenance by the HOA of the constructed stormwater conveyance swale and the existing conveyance swales downstream, the design as shown on the 5/29/07 revisions to the Clydesdale Park P.U.D. Second Filing shall function properly. Sincerely, TST, INC. CONSULTING ENGINEERS Christop L. Thew, E.I. CLT/KGS/mgf info@tstinc.com w I ■ .tstinc.com TSIT ,..p . ��wba�A1' �lIi� TST, INC. CONSULTING ENGINEERS August 16, 2006 C Mr. Rex Burns -� Larimer County Engineering Department a P.O. Box 1190 o Fort Collins, CO 80522 Re: Clydesdale Park PUD — Filing Two CV Project No. 0957.0001.00 rmO111111111111S Dear Mr. Burns: JNNEJ 3 We are pleased to re -submit this letter of addendum to the Final Drainage Report for the MMMM Clydesdale Park PUD — Filing Two subdivision. This letter addresses the drainage swale between Shetland Lane and Vista Grande Subdivision as well as Ponds G and D on the v) Clydesdale Park PUD — Filing Two. We have addressed your comments dated July 3, zCr 2006. �� In the Final Drainage Report prepared by TST, Inc. Consulting Engineers, submitted December 2001, the drainage system in Clydesdale Park PUD was designed to collect water from ST — 2 and basin 207 in Pond D and discharge this flow into the swale in question. This swale conveyed stormwater to ST — 6 where it passed under the emergency access road to flow into Pond G. The 100 — year design flow in this swale Ct was 8.2 cfs and did not include any offsite contribution from the adjacent property to the East. The design cross section was a grass lined channel with a 4' to 8' bottom width, 3:1 side slopes and a bottom slope of 0.5% downstream. With this design, the 100 — year water surface elevation did not encroach on the residential lots along Messara Dr. Two factors have contributed to the re -analysis of this drainage system. First, it was observed that the swale was not built as designed. The existing cross section had a triangular rather than trapezoidal cross section and a bottom slope of 0.35%. Second, the Vista Grande subdivision, adjacent to the East side of Clydesdale Park PUD, designed their drainage system to release their detained stormwater into Pond D (which is not actually a detention pond). This flow was not accounted for in the Final Drainage Report for Clydesdale Park PUD — Filing Two and is equal to 7.9 cfs in the 100 — year event (according to the Final Drainage Report, Vista Grande, P.D. submitted May 2002). Although the Vista Grande flow was accounted for in a previous Clydesdale Park PLID drainage study, it was omitted from the Filing Two Final Drainage Report. The addition of Vista Grande flows to the swale caused a near doubling of the design flow, and when coupled with the incorrect construction of the swale, resulted in the 100 — year water surface elevation encroaching on the back of lots along Shetland Lane. According to normal depth calculations, this additional flow would not have impacted the lots along Messara Dr. However, a detailed hydraulic analysis of this swale as designed using HEC-RAS illustrated that one lot would have been impacted. 748 Whalers Way, Bldg, D To evaluate the situation TST, Inc. Consulting Engineers surveyed the as -built condition Fort Collins, co 80525 in the swale, pond, culverts and buildingcorners between August 2005 and February 970.226.0557 9 Y metro 303.595.9103 2006. These as -built points were used to generate contours and a hydraulic analysis of fax 970.226.0204 the as -built condition was performed. The swale was evaluated using HEC-RAS from Pond G through ST — 6 to Pond D. The downstream water surface elevation was info@tstinc.com assumed to be the 100 — year water surface elevation in Pond G as stated in the Final ■ www.tstinc.com Drainage Report. This hydraulic analysis gave the 100 — year water surface elevation along the swale and confirmed that the water surface would encroach on the back of lots as suspected. The survey information also indicated that Pond D was not draining as designed because of shallow depressions that were left after construction. To resolve the issue of water encroaching on the back of lots and improve the condition of the drainage system TST, Inc. Consulting Engineers has developed a grading plan for Pond D and the swale. Holding the inverts of all storm pipes constant as well as not interfering with the individual lots or the irrigation ditch that runs along the East side of the swale, we have developed a plan that will adequately convey the 100 — year flow. It is proposed that Pond D be re -graded to drain to the swale as shown on the revised grading plan (attached for reference). It is further suggested that a concrete trickle pan be added in areas where the slope is less than 2% to convey the nuisance flows from irrigation and small storms. The new designed channel has a bottom slope of 0.30%, a bottom with of 2' to 4' and side slopes between 3:1 and 2:1. A hydraulic analysis of the redesigned channel has been performed in HEC-RAS and shows that it will convey the combined 100 — year design flow from Clydesdale Park PUD and Vista Grande without encroaching on back of lots. The results of this analysis are attached to the end of this letter. The steep side slopes in some areas are required to prevent disturbance of existing lots. Because these steep side slopes are only about 2' in vertical elevation their maintenance should not be an issue with a manual mower. The homeowners association has agreed to accept maintenance responsibility for these 2:1 slopes, as stated in the attached letter. Pond G was designed with a 10.01 in diameter orifice to restrict the release rate from Clydesdale Park PUD to 4.9 cfs by J.R. Engineering in their Final Drainage and Erosion Control Report for Clydesdale Park. Because the additional stormwater from Vista Grande PD is being passed through Clydesdale Park PUD and does not need to be detained, according to the J. R. Engineering design this orifice should be increased to a diameter of16.51 in. This will result in a combined release rate of 12.70 cfs. In conclusion, this letter of addendum has summarized the assumptions of the Final Drainage Report for Clydesdale Park PUD, documented the as built condition of the ponds and swales, documented the increase in flow caused by stormwater discharge from Vista Grande PD and proposed a revised grading plan to prevent the encroachment of the 100 — year water surface elevation into lots along Messara Dr. Supporting results from HEC-RAS and exhibits of the high water elevation can be found at the end of this letter. We look forward to your review and will gladly answer any questions Respectfully, TST, INC. CONSULTING ENGINEERS Summer D. Jawson SDJ/DBL/tI �Wr�REG�S d -have,.. J ; m; 32135 7 /' ...... '.��( . David BM'IndsAV, P.E. NF(:RAC PI.- 12 ran V1u �.. Reach Rim Me Profile C Total Wn Ca FJ W.S. Elev Cn1 W,6. f E.G. FJev E.O. Slope Vol CMI Fbw Area Tap W ft Frau6e S CH (of$) (8) (6) l6) (6) (I'm (Na) - (a98) (a) Swale 2279 CP 8.20 - 4928.61 4929.01 4929.051 0.003139 2.60 8.18 42.68 0.77 Swale 2279 CP+VG 16.10 4928.61 4929.32 4929.331 0.000608 1.741 24.23 60.11 0.38 Swale 2179 CP 8.20 4928.27 4928.90 4928.69 4928.91 0.000647 1,661 12.00 42.65 0.38 Swale 2179 CP+VG 18.10 4928.27 4929.28 4928.79 4929.29 0.000304 1.58 23.52 60.12 0.28 Swab " 2079 CP 8.20 4927.94 4928.79 4928.46 4920.83 0.001103 2.671 6.61 15.99 0.52 Swale 2079 CP+VG 16.10 4927.94 4929.18 4928.65 4929.24 0.000963 3.24 10.811 18.34j 0.52 Swale 1979 CP 8.20 4927.60 4928.381 4928.63 0.003516 4.52 2.97 6.23 0.92 Swab 1979 CP+VG 16.10 4927.60 4928.71 4928.69 4929.05 0.003264 5.55 5.33 8.22 0.94 Swale 1879 CP 5.20 4927.27 4928.13 4928.321 0,002468 3.98 3.26 6.28 0.78 Swale 1879 CP+VG 16.10 4927.27 4928.43 49211.741 0.002755 5.20 5.42 7.93 0.87 Swab 1779 CP 8.20 4926.90 4927.73 4927.73 492S.D01 0.004129 4.94 2.98 6.28 0.98 Swab 1779 CP+VG 16.101 4926.90 4928.06 4928.06 4928.421 0.003803 6.00 5.38 8.28 1.01 Swale 1678 jCp 8.20 4926.611 4927.35 4927.51 0.002944 3.93 3.62 7.62 0.03 Swale 11679 CP+VG 16.10 4926.61 4227.67 4927.89 0.002522 4.711 6.40 9.29 0.82 Swab 1579 CP 8.20 4926.28 4927.09 4927.24 0.002398 3.78 3.87 8.15 0.76 Swab 1579 CP-VG 16.10 4928.28 4927.54 4927.69 0.001360 3.90 8.11 10.35 0.62 'Swab 1479 - - CP 8.20 4925.90 4926.69 4926,69 4928.93 0.003986 4.63 3.16 7.33 0.98 Swab 1479 'CP+VG 16.10 4925.90 4927.50 4927.58 0.OWS39 3.07 11.37 12.38 0.44 Swale 1379 CP 8.201 4925.82 4926.61 4928.68 0.000B04 1.90 4.33 7.43 0.44 Swale 1379 CP+VG 16.101 4925.62 4927.51 4927.54 0.000154 1.19 13.93 18.02 0.20 Swab 1279 CP 8.20 4925.29 4926.54 4926.60 0.000491 2.321 6.51 9.05 0.37 Swab 1279 CP+VG 16.10 4925.29 4927.48 4927.52 0.000173 2.03 19.12 19.48 0.24 1 Swale 1179 CP 8.20 4924.99 4926.53 4928.55 0.000219 1.81 11.59 13.76 0.26 Swale 1179 CP+VG 16.10 4924.99 4927.49 4927.50 0,000089 1.60 28.38 21.46 0.18 Swale 1151 CP 8.20 4924.92 4926.53 4926.55 0.000147 1.62 12.64 14.48 021 Swale 1154 CP+VG 16.10 4924.92 4927.48 4927.50 0.000067 1.40 30.11 72.18 0.16 Swale 1133 8.20 4924.90 4926.52 4925.61 4928.54 0.000188 1.74 8.48 34.58 0.24 Swab. 1133 16.10 4924.90 4927.46 4925.88 4927.49 0.000137 2.03 14.12 76.05 0.22 VC&-VG Swab 1110Culvert Swale 1087 8.20 4924.93 4925.69 4925.88 0.013613 3.46 2.37 9.56 0.79 Swale 1087 CPWG 16.10 4924.93 4925,88 4925.89 4926.29 0.019993 5.09 3d6 12.06 1.01 i Swale ION CP 8.20 4924.79 4925.48 4925.58 0.015023 2.49 3.29 9.85 0.76 Swale 1066 CPWG 16.10 4924.79 4925.66 4925.79 0.014626 2.92 5.52 12.75 0.70 Swab 1026 1CP 8.20 4924.36 4225.12 4925.17 0.005380 1.77 4.64 12.24 0.51 Swale 1026 CP+VG 16.10 4924.36 4925.35 4925.421 0.005787 2.02 7.98 16.05 0.50 Swain B90 1CP 8.20 4924.14 4924.96 4924.99 0.003784 1.43 5.73 14.04 0.40 Swale 9B0 CP+VG 16.10 4824.14 48T5.21 492525 0.003431 1.63 9.86 18.41 0.38 Swale 900 1CP 8.20 4923.78 4924.701 4924.73 0.002270 1.20 6.52 14.77 0.31 Swale 900 CPWG 16.10 4923.78 4924.98 4925.01 0.002190 1.40 11.47 19.15 0.32 Swab 500 CP 8.20 4923.48 4924.55 4924.57 0.001141 0.94 8.71 16.23 0223 Swale S00 - CP+VG 16.10 4923.48 4924S1 4924.83 0,001406. 1.21 13.36 20.10 0.26 Swab 700 CP 8.20 4923.61 4924.12 4924.12 4924.25 0.026000 .2.86 2.87 11.21 0.99 Swale 700 CP+VG . 16.10 4923.61 4924.28 4924.28 4924.45 0.028100 3.30 4.88 14.54 1.00 Swab OW CP 8.20 4921.53 4922.42 - 4922.42 0.000101 0.31 26.51 42.68 0.07 Swale 850 CP+VG 16.10 4921.53 4922.51 4922.52 0.000247 0.53 30.81 43.54 0.11 Swale 600 CP 37.00 4921.46 4922.35 4922.38 0,001837 1.38 27.22 42.02 0.30 Swab S00 CPWG 44.90 4921.46 4922.44 4922.47 0.001836 1.45 30.87 42.92 0.30 Swab 50D GP 37.00 4921.14 4922.24 4922.26 0.000861 1.07 34.52 43.10 0.21 Swab 500 CP+VG 44.90 4921.14 4922.32 4922.34 0.000948 1.18 37.991 43.91 0.22 Swale 400 'CP 37.00 4921.45 4922.08 4922.11 0.002912 1.53 24.15 44.03 0.36 Swale -: 100 CP+VG 44.90 4921.451 4922.141 4922.19 0.002973 1.65 27.141 44.70 0.37 HECRAS Plan: RaDealon River. Swale Reach: Swale (Conlinued) Reach River Ste Prome C Total Mln Ch El W.S. Elev Cdt W S. E.G. Elev E.G. SlowVel ChM Flow Artie Top WMBh Froude i CN Will (it) (11) (it) (it) (a6) (tus) (sq 6) (it) Swale 300 CP-: 37.00 4921.00 4921.88 4921.90 0.001565 1.24 29.85 46.95 0.27 Swale 300 , CP+VG 44.90 4921.00 4921.02 4921.95 0.001884 1.41 31.83 47.40 0.30 Swale 200 CP 37.00 4920.50 4921.80 4921.81 0.000490 0.86 43.11 49.18 0.16 Swab 200 CP+VG 44.90 4920.50 4921.82 4921.84 0.000676 1.02 44.03 49.36 0.19 Swale 100 CP 37.00 4920.50 4921.77 4921.77 0.000322 0.71 51.86 57.07 0.13 Swale too CP+VG 44.90 4920.50 4921.77 4921.78 0.000471 0.86 52.00 57.09 0.16 Swale 60 CP 37.00 4920.31 4921.76 4921.76 0.000126 0.51 72.37 64.70 0.69 Swale 50 CP+VG 44.90 4920.31 4921.76 4921.76 0.000185 0.62 72.31 64.69 0.10 SWak 0 CP 37.00 4919.00 4921.76 4919.54 4921.76 0.000007 0.18 206.89 98.62 0.02 Swale 0 CP+VG 44.90 4919.00 4921.76 4919.57 4921.76 0.000010 0.22 206.89 98.62 0.03 Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1879 � — .035 )i(.016 �iK - .035 4932 Legend WS CP+VG S WS CP 4931 4. d Ground �n P Bank Sta 4930 V c 0 ca d w 4929 4928 4927 *T�.«�-, 40 45 50 55 60 65 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1779 �— .035 .016 - .035 — - —� 4932 Legend WS CP+VG 4931 WS cp Ground ABank Sta 4930 10 c of 4929 to 'm w 4928 4927 4926 45 50 55 60 65 Station (ft) LEGEND 100yr WSEL, Re —Design — HEC—RAS 2179 O X—SECTION 2079 879 1878 1779 1878 1579 1178 1379 1279 X227X X X X X X X X X X X X X X X X MW W � 7 W 51 Z a ------------ Y 0 W LL Q ♦^ W 100 0 100 200 LU W 0 � scale 1"=100' feet > O U C) MATCHLINE SEE ABOVE 1 x 1, N 1 100 200 300 400 500 600 650 700 baa X 179 900 9966 0 10 I I I I T J 154 >00 I I alw.c-1110 X X X X X X X X X X X X X X X X X X 1026-1087—X� 0:1 TST, INC. Consulting Engineers 748 Whalers Way, Bldg. D Fort Collins, Colorado 970-226-0557 Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 2279 - .035 - .035 4932.0 1 Legend 6 WS CP+VG 4931.5 WS CP ��`/I b � 7 Ground 4931.0 0 Bank Sta V q a" � 4930.5 c O N w 4930.0 4929.5 4929.0- -- -.- 4928.5 -� 0 20 40 60 80 160 120 140 160 180 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 2179 < .035� —.035 -- _ 4933 1 Fv Legend 6 H WS CP+VG WS CP 4932 —� Ground Ineff Bank Sta 4931 c 0 IL m m w 4930 4929 4928 —��- 20 40 60 80 100 120 140 160 Station (ft) 4931 c 0 a m d W 4927�— r 30 c 0 .� m w Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 2079 - 035 -- 0 .035 1 6 35 40 45 50 55 60 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1979 Station (ft) 65 70 Legend WS CP+VG WS CP Ground • ___ Ineff • Bank Sta Legend WS CP+VG WS CP Ground 0 Bank Sta Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1679 .035 — .035 4936 0 1 Legend 6 WS CP+VG WS CP 4934 • Ground e Bank Sta 493200 A o m m ui 4930- 0 4928 4926�- 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1579 — .035 .035 — 4936 0 1 Legend 6 WS CP+VG WS CP 4934 Ground e Bank Sta 4932 a � y_ b m J w 4930 0 4928 4926 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1479 -- -- — .035 - . � .035 — 4932 1 Legend 6 WS CP+VG 4931 WS CP Ground 4930 Bank Sta 4929 a m W 4928 4927 4926 4925 r r� 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1379 035 --- 016� 4930 Legend WS CP+VG WS CID 4929 Ground Bank Sta 4928 Q c a - d W 4927 4926 4925 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 1279 .035 .035 4931 0 1 Legend 6 WS CP+VG 4930 WS CP a 44 Ground Bank Sta 4929 c c 4928 m w 4927 4926 4925 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 1179 .035 O �— .035 4930 1 Legend 6 + WS CP+VG 4929 WS CP Ground � • - Bank Sta 4928 c 4927 m w 4926 4925 4924 30 35 40 45 50 55 60 65 station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 1154 22' Upstream of Culvert 035 1 IK- - .035 4929 0 Legend 1 6 + WS CP+VG WS CP 4928 • Ground • Bank Sta 4927 0 a -- m W 4926 4925 4924 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 1133 2' Upstream of Culvert 035 -� .035 4929 1 Legend � 6 WS CP+VG 2 WS CID 4926 3 Ground Ineff • Bank Sta 4927 W c O a 0 ul 4926 4925 4924 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1110 Culy 24" RCP .035- —.035 _I 4930 - - -- Legend 6 / WS CP+VG 4929 WS CP Ground -A -- Ineff 4928 Bank Sta x 0 4927 > - m w 4926 4925 4924 T I I I I I 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 1110 Culy 24" RCP .035 .035 .035 4930 _ - - - --- — - Legend WS CP+VG 4929 ' WS CP Ground Ineff 4928 Bank Sta 0 m 4927 d w 4926 4925 4924- 0 20 40 60 80 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 1087 2' Downstream of Culvert .035 - r< .035 .035 4930 Legend S', de �rc.lk WS CP+VG FICAc_J WS CID 4929 • Ground --A — Ineff 4928A ank Sta c 4927 d w 4926 4925 4924 0 20 40 60 80 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 1066 22' Downstream of Culvert 035- 035 — + .035 4930 Legend WS CP+VG 4929 WS CID Ground Ineff 49281 Bank Sta x c m 4927 m w 4926 4925 4924 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 1026 — .035- M .035- )JO .035 4929 Legend WS CP+VG WS CP 4928t�CWc.�iCi� Ground —� Bank Sta 4927 c 0 w 4926 492 4924 1 T — 1-1 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 990 .035 1�4 .035 .035 4928.0 Legend WS CP+VG 4927.5 l3�11� WS CID —� Ground 4927.0 a Bank Sta 4926.5 c 4926.0 m w 4925.5 4925.0 4924.5 4924.0 T-T - 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 900 035 .035 -_4035 4928 Legend WS CP+VG - W 4927 �� _j es_ Ground • Bank Sta 4926 0 m W 4925 4924 4923 — , 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 800 035 .035�pi .035� 4928It Legend WS CP+VG WS CP 4927 SvJ4wcA L ;4U_ Ground Bank Sta 4926 c c a m w 4925 4924 4923 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 700 035 .035 .035 4927.0 Legend a WS CP+VG 4926.5 WS CP 1 SiC�Cwt�►�[ �QmC� Ground d 4926.0 —� • Bank Sta G 4925.5 c 0 m w 4925.0 4924.5 4924.0 4923.5 0 20 40 60 80 100 Staton (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 650 035 �� .035 - +035 4927 Legend a WS CP+VG 4926 WS CP 40 r Ground —� Bank Sta 4925 c 4924 d w 4923 4922 4921 L—� 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 600 035 - 035 — - ----..035 4927 Legend a WS CP+VG 4926 WS CP Ground cw0.1L � � • Bank Sta 4925 —� c m 4924 a') w 4923 4922 4921 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 500 035) .035 4927 3 Legend 5 WS CP+VG 4926 WS CP Ground Bank Sta 4925 i +K 4924 5- W 4923 4922 4921 0 20 40 60 80 160 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 400 035 035 -- - -�I . 4926 0 3 Legend 5 4 WS CP+VG WS CID 4925 �i Gro■ und �S'id2lniC�1� f/ Bank Sta 4924 c 0 W 4923 4922 -- 4921 -, - -T- 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 IRS = 300 035—- .035 -- .035� 492641 Legend . WS CP+VG WS CP 4925 �S&WCA1 - -- Ground Bank Sta 4924 c O 5 N W 4923 4922 4921, 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS = 200 035 -- .035 — - .035 4926 Legend WS CP+VG 4925 WS CP �+ J �dewo�ll� �y�C� Ground S Bank Sta 4924 x c m 4923 m w 4922 4921 4920 0 20 T , 40 60 80 — 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS=100 4925 035— .035 <— .035 Legend WS CP+VG 4924 /S�VJ��iC -- WS cp t gle4aCA_ Ground Bank Sta 4923 0 i d w 4922 4921 4920 T 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS=50 035 .035 -+- .035 4927 Legend WS CP 4926 WS CP+VG W� d Ground • 4925 T Bank Sta 4924 c 0 w 4923 4922 4921 4920- 0 20 40 60 80 100 120 140 Station (ft) Clydesdale Park - Swale Plan: Re -Design 8/15/2006 RS=0 03 035---- - 'I' .035� 4925 Legend WS CP 4924 WS CP+VG Sj�Q1� Ground Levee 4923 Bank Sta x c 4922 w 4921 4920 4919 - — —r - 0 20 40 60 80 100 120 140 160 Station (ft) HEGRAS Plan- Rulll•Full River S la Rear- Ruwl. Ranch Rwu 819 Prtfib _ C TaW 76b Ch El W.6 Ebv CtB W.S. E.G Elev E.O. 8bpe VN C71M Fbw A TOP WkNh FmuG 9 CM _ m1 m1 EM 0.000002 p991 c m1 _ Swam 2279 CP 8.20 4928.70 4930.14 4028.89 49W.14 0.07 121.57 1oM4 _ 0.01 Swam 2279 CP.VG 16.10 4928.701 4930.40 1 408.951 400.461 c.oDow4j 0.101 155.56 107.62 0.02 i Swam 2179 CP 8201 4928.51 49W.14 4928.811 4030.14 0.000004 0.00 98.38 95.16 0.01 .8wam 2170 CP. VG 16.101 4928.511 4030.40 4928.911 4930.46 0.000006 0.12 129.34 97.57 0.02 awab 2079 CP 8.20 4920.051 4930.13 1 4930.14 0.000331 0.03 12.94 17.18 0.13 Swab 2070 CP.yG 16.10 4929.05 4930.45 1 4930.46 0.000450 0.80 18.78 10,92 0.16 Swam 1W9 CP 8.204928.95 l030.02 4930.08 0.003433 1.51 5.10 9.55 0.39 SwW T07o CP.VG 1&10 4828.95 4830.29 4930.35 0.003923 2.00 D.D4 11.97 0.43. Swam IonCP 8.20 4928.82 4920.03 4929.W 0.OD4290 1.83 5.02 12,42 0.44 Swale ISan CNVG 16.10 4928.62 4929.86 4929M 0.004615 2.25 B20 15.831 0.47 Saab 1710 CP 620 4028.38 49 9.131 4929.18 0.005908 1.79 4.69 11.68 0.49 Swale 1779 CWVO 10.10 4928.36 4929.391 4929.45 0.004605 2.08 8.08 15.66 0.47 Swab 1679 CP 8.20 4927.82 4925.811 4928.84 0.002225 1.25 8.58 13.25 0.31 Swab __ 1079 CWVG 16.10 4927.821 4929.101 1 4929A3 0.0022561 1.48 10.94 17.01 0.33 Swale 1570 CP 6.20 492T511 4928.391 4928.461 0.0076701 112 3.681 8.77 0.56 Swale 1579 CP VG i 16.10 4827.511 4928,671 49211.761 O.OM7151 2.39 6.73 11.58 0.55 �:�S�wale _ 1479 CP 8.20 l827.01 4028.0.5 4920.07 0.002209 1.28 6.39 12.16 0.31 am" 1479 1379 CPIVG CP 16.10 8.20 4927.01 4926.89 4.28.31 4927.70 492a.351 4927.751 0.002558 0.005299 1.62 1.67 9.97 4.91 15.14 12,23 0.35 0.48 Swa1a 1379 CPWG 16.101 4928.891 4927.94 4920,001 0.0052011 1.95 11,271 18.11 0.48 Swam 1279 CP 820 IM13 4927.08 1 4927A51 0.006824 2.09 3.92 826 o.54 Swale 1279 CP.VG 16.10 4926.13 4927.57 4227.52 0.002870 1.78 &99 17.52 0.37 ewab 1179 CP 8.20 4925.61 4926,80 4920.64 0.003789 1.62 5.07 10.19 0.40 Swab 1179 _ CP.VG 16.10 4925.51 9927.50 4927.51 0.000479 0.89 18.08 18.92 0.16 SwW 1154 CP 8.20 41M.45 4228,54 4920.57 0.002237 1.32 6.20 11.38 0.32 Swale _ 1154 CP-VG 16.10 4925.45 492T49 4927.50 0.000305 0.74 21.61 21.58 0.13 Swab 1133 CP 8.20 4925.11 4926.52 4925.71 4926.54 0.000562 1,13 723 15.18 0.16 Swale _ 1133 _ CWVG 15.10 4925.11 4927.47 4925.93 4927.49 O.000316 1.25 12.90 2D.66 0.15 Swale 1110M;6.20 Sweet 1087 .03 4925.89 4925.88 0.013613113.48 2.37 OA6 0.79 6vnb IDB7 _ M 4925.89 4925S9 4926.29 0,019993 5.00 3.16 12.06 1.01 Swore1058_-_ .79 4925.48 4925.56 0.015023 2A9 3.29 9.83 0.78 ewale 1060 78 4925.86 1 4025.79 0.014828 212 5.52 12.75 0.78 l Swab 1028 _ CP 820 4924.36 4925.12 1 4925.17 0.008980 1.771 4.64 1224 0.51 Swam 1026 CPWG 16.10 4924.35 4926.35 1 4025.42 0.005787 2.02 1 7.98 16,05 0.50 990 CP 8.20 4924.14 4924.90 1 4924.99 0,003794 1.43 5.73 14.04 0.40 9w91e 990 CP.VG 16.10 4924.14 4925.21 1 4925.25 0.003431 1.83 0.56 18.41 0.39 Swats 000 CP 8.20 4023.781 4924.70 1 4924.73 0.002270 1.20 6.82 14.77 0.31 91nle 900 CP.VG 18.10 4923.73 4024.98 4925-011 0.002190 1.40 11.47 19.15 0.32, 8wala 600 CP 8.201 4923.48 4924.65 4924.571 0.001141 0.04 8.71 16.23 o.23 6.910 800 CP.vO 18.101 4923.48 4924.81 4924.831 0.W1406 1.21 13.36 20.10 0.28 Swam 700 CP 8.20 4923.61 4924.12 4924.12 492425 0.o280o0 2.85 2.97 1121 0.09 Swale 700 CP+VO /8.10 4823.81 4924.28 4924.28 4924.45 0.026100 3.30 4.85 14.54 1.00 Swale 650 lop 8.20 4921,53 4922.42 4922.42 0.000101 0.31 26.51 42.68 0.07 Swale 6S0 CP.VG 18.10 4921.63 4022.51 4922.52 0.000247 0.53 30.61 43.54 0.11 Swam low MCP 37.00 4921.46 4922.36 9922.38 0.001837 1.36 2722 42.02 0.30 Swab 600_ CP+VG 44.90 4921.46 4922.44 4922.47 0.001830 1.45 30.07 42.92 0.30 Swam 500 CP 37.00 4921.14 4222.24 4922.28 0.000861 1.07 34.52 43.10 0.21 Swale 500 _ _ _ CP-VG 44.90 4921.14 4922.32 4922.34 0.000948 1.18 37.99 43.91 0.22 .Swale _ 400 _ CP 37.00 4921.45 4022.08 4922.11 0.0=12 1.53 24.151 44.03 0,3g SW" _ 400 CP.VG 4490 4921.48 4022.14 4922.19 0.002973 1.86 27A4 M.79 0.97 HEORAS Plam Built -Full River. Swab Reach- Swab fConHnuetll Rsad1 Rrvr 81a Pre13a G Taal A9n Ch EI W.B. Elav Cril W.6. E.O. FJev E.C. 6bpe Vel ChN , Fbw Aaa Top Wlcilh FmWa i CN -- lcs -- ). 5 ..11_ (11) m m (Hfs t1 -rn)'_--- is-vie 300 _ CP 37.00 4921.00 4921.88 4921.90 0.001686 1.24 22.05 46.98 0.27 Swab 300 CP-VG 44.90 4921.00 4921.02 4921.95 0.001884 1.41 31.83 47.40 0.30 Bvam 200 CP 37.00 4920.W 4921.80 4921.81 0.000490 0.86 43.11 49.18 0.15 same 2W CPWG 44.90 4920.50 4921.82 4921.84 0.D00870 1.02 44.03 49.30 0.19 Swale, 1W CP 37.00 4920.50 4921.77 4921.77 0.000322 0.71 51.W 57.07 0.13 &awe 100 'Cl P•VG 44.00 4920.50 4221.77 4921.78 0.000471 0.06 52.00 57.09 0.15 Swab ISO 1cp 37.00 4920.31 4921.761 4921.76 0.000126 0.51 72.37 64.70 009 Swab 50 CP.VG 44.90 4920.31 4921.78 4921.76 0.000185 0.62 72.31 64.59 0.10 Swab 0 CP 3ZW 4919.00 4921.76 4919.54 4921.78 0.00W07 0.18 206.89 98.62 0.02 3-1a _ 0 GPaVG 44.90 4919.00 4921.76 4919.57 4921.76 0.000010 0.22 206.89 98.82 0.03 Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 2279 III 035 �I- - 035 49331 0 Legend WS CP+VG F- � WS CID 4932- �— Ground Levee c Bank Sta 4931 z= c 0 - a- - N W 4930 4929 4928 — 0 50 100 150 200 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 2179 E .035 .035 - - 49341 Legend WS CP+VG 4933 t � _ P WS CP N _ Ground Levee 4932 0 Bank Sta x ,y a 0 4931 > y w co - 4930 4929 4928 — T 0 20 40 60 80 100 120 140 160 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 2079 035��- - .035—-)-I<.035� 4934 Legend WS CP+VG WS CID 4933 ` Ground Bank Sta O 4932 � c 4 a 0 m w 4931 4930 4929 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 1979 035 — .035 4935 Legend WS CP+VG 4934 WS CP ■ Ground e 4933 Bank Sta 0 4932 w 4931 4930 4929 4928 0 10 20 30 40 50 60 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 1879 �— —.035— .035 4935 Legend WS CP+VG 4934 WS CP Ground 4933 • Bank Sta v 4932 o a > Q w 4931 4930 4929 4928 0 10 20 30 40 50 60 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 1779 035 - .035 49�1� Legend . - WS CP+VG 4934 WS CP Ground • 4933 Bank Sta y r 4932 o w 4931 O P 4930 4929 4928 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 1679 - .035 >K .035 4935 Legend WS CP+VG 4934 — WS CID Ground 4933 Bank Sta 4932 r � c 4931 w A 4930 4929 4928 4927 � 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FullLength 8/15/2006 RS = 1579 --.035— .035 — 4935 Legend WS CP+VG 4934 WS CID ■ Ground 4933 Bank Sta 4932 P 4931 w 4930 U ti 4929 4928 4927 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 1479 035 .035 — -- 4932 Legend WS CP+VG WS CID 4931 �— Ground • Bank Sta 4930 c 0 a 4 m W 4929 4928 4927 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 1379 035 .035 _I 4930.5 Legend WS CP+VG 4930.0 WS CP Ground 4929.5 • Bank Sta 4929.0 4928.5 m w 4928.0 4927.5 4927.0 4926.5 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 1279 .035 .035 4932 Legend a WS CP+VG 4931 WS CP Ground Bank Sta 4930 A r 4929 w 4928 4927 4926 -r �T -, , , 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 1179 035 — - .035 - 4930 Legend WS CP+VG WS CP 4929 —'— Ground a Bank Sta J 4928 �y P 0 W 4927- 492s 4925 0 10 20 30 40 50 60 70 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 1154 22' Upstream of Culvert .035 - .035 4930 3 Legend 5 WS CP+VG WS CID 4929 Ground e Bank Sta 4928 x, 0 a>> w 4927 4926 4925 0 10 20 30 40 50 60 70 80 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 S = 1133 2' Upstream of Culvert .035 .035 4930 d 0 3 Legend 5 WS CP+VG WS CP 4929 Ground — +3 Levee --- A-. Ineff 4928 Bank Sta � c 0 a A N W 4927 4926 4925 0 10 20 30 40 50 60 70 80 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 1110 Culy 24" RCP 035 - -- —.035 4930 0 0 Legend i� / WS CP+VG WS CP 4929 Ground Levee _ -A— - 4928- Ineff • Bank Sta r C 4927 m w 4926 4925 4924 0 10 20 30 40 50 60 70 80 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 1110 Culy 24" RCP 035 .035 '� .03.5 4930 Legend WS CP+VG WS CP 4929 — i Ground ineff " 4928A Bank Sta x c ° 4927 a>i w 4926 4925 4924 T T - 0 20 40 60 80 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FullLength 8/15/2006 IRS = 1087 2' Downstream of Culvert .035 rd .035 .035 4930 Legend WS CP+VG 4929 WS CIO VC S1�21 1 Ground �— I en ff 4928A ank Sta r c 4927 d w 4926 4925 4924 - 0 20 40 60 80 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 1066 22' Downstream of Culvert .035 � -.035 — -.035 4930 - Legend WS CP+VG 4929 WS CP Ground ��CiQLucxk r� �:> Ineff 4928 Bank Sta c 4927 a>> w 4926 4925 4924 0 20 40 60 80 100 Station (ft) , Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 1026 035.035 .035 4929 Legend WS CP+VG 4928 Ground Bank Sta 4927 x 0 a _m W 4926 4925 4924 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 990 035--��—.035— < .035 4928.0 Legend WS CP+VG 4927.5 1 (1 Ws CP Ground 4927.0 �— "'�� • Bank Sta 4926.5 x c 4926.0 m w 4925.5 4925.0 4924.5 4924.0 0 20 40 60 80 100 Station (ft) ♦ . ■ x c O m W W Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 900 Legend WS CP+VG WS CID ■ Ground e Bank Sta 1 0 20 40 60 80 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 800 < .035 - 035.035> 4928- 0 20 40 60 80 100 Station (tt) Legend WS CP+VG WS CID Ground Bank Sta Clydesdale Park - Swale Plan: AsBuilt-FullLength 8/15/2006 IRS = 700 035 s c .035 -- >� .035 4927.0 Legend WS CP+VG 4926.5 +i n WS CP Ground 4926.0 ��� ���iiiYYYlll Bank Sta x 4925.5 c 0 w 4925.0 4924.5 4924.0 4923.5 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 IRS = 650 4927 035 035 -->�.035> Legend WS CP+VG I 4926 WS CID Ground Bank Sta 4925 c ° 4924 Q) w 4923 4922 4921 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 600 035 �-E .035 '�' .035 4927 Legend WS CP+VG 4926 WS CP ■ (1 Ground Bank Sta 4925 c 4924 U3 4923 4922 49210 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 500 .035 .035 4927 3 Legend 5 WS CP+VG 4926 WS CP Ground • �i Bank Sta 4925 c 4924 d w 4923 4922 4921 0 20 40 60 80 100 Station (It) . . , Clydesdale Park - Swale Plan: AsBuilt-FullLength 8/15/2006 RS = 400 .035 - + - .035 4926 O 3 Legend 5 WS CP+VG 4925 , Sidewalk e WS CP Grou d Bank Sta 4924 0 m ? W 4923 4922 4921 r rT�T 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: ASBuilt-FuIlLength 8/15/2006 IRS = 300 035 - -- .035 035 4926 Legend WS CP+VG WS CP 4925 � ���� 1 F Ground �� •_ �E` J1Ui��C Bank Sta 4924 W 4923 4922 4921 0 20 40 60 80 100 Station (ft) , Clydesdale Park - Swale Plan: AsBuilt-FullLength 8/15/2006 RS = 200 035 .035 '' .035� 4926 Legend WS CP+VG 4925 WS CP S I� Ground G2 s ;;;. Bank Sta 4924 4923 m W 4922 4921 4920 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 100 035 )mile ----.035 — — .035 4925 Legend WS CP+VG WS CP 4924 — ---y Ground • Bank Sta 4923 c 0 i m W 4922 4921 4920 0 20 40 60 80 100 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS = 50 035 —— .035 .035 4927 Legend WS CP 4926 WS CP+VG 4925 ` T�j(1�� Ground Bank Sta 4924 0 w 4923 4922 4921 4920 0 20 40 60 80 100 120 140 Station (ft) Clydesdale Park - Swale Plan: AsBuilt-FuIlLength 8/15/2006 RS=0 03+ .035 -- -- — +- .035 4925 Legend WS CP 4924 WS CP+VG Ground Levee 4923 Bank Ste c 4922 w 4921 4920 4919 0 20 40 60 80 100 120 140 160 Station (ft)