FLOOD02900

• County: Adams
• Community: Commerce City
• Basin: South Platte
• Title: Lower First Creek and Direct Flow Area 0055 Major Drainageway Planning
• Date: 5/1/2002
• Prepared For: UDFDC
• Prepared By: Turner Collie & Braden Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Tablc HI-6
Peak Flow Comparison
First Crcck, DFA 0055

Table 111-7
Dctcntion Pond Inflow/Outflow
and roO-Ycar Volumes

UNADJUSTED RAINFALL FOR TRIBUTARIES/ADJUSTED RAINFAI.J. FOR MAIN CHANNEL UPSTREAM OF DESIGN POINT 934

UDSWMM POND IOO-YICAR IOO-YEAR tOO.YEAR
DESIGNA nON INFLOW VOLUME (AC OUTFLOW
ICFS\ IT\ ICFS\
305 2027 269.2 1929
. 800 419 ILl 120
. 801 1226 37.4 655
. 802 982 32.6 920
808 4857 263 4306
. 812 444 13.1 216
. 813 213 17.7 83
. 815 1095 39.1 999
. 816 864 40.3 438
. 826 589 22.9 180
. 1225 2573 183.7 811
. 1227 4009 229.6 1733
1237 4518 290 3000
. 1260 5489 339.2 1519
. 1281 1070 55.6 89
. t282 496 21.5 7
. 1283 139 12.9 t
. 1284 876 58.5 1
. 1285 456 16.5 90
. 1286 79 9.7 39
1287 3521 124.7 3303

TC&b Base Motlel Martin/Martin Future
JURISDICTIONAL Future Development Development Master
DESIGN TRIBUTARY wI Mater Planned
REACH STATION BOUNDARIES COl\L"IENTS Plan Revision
POINT AREA (ACRES) Facilities
(D/S: VIS)
IO-year IOO-vear IO-vear IOO.year
(crs) ICfs\ Ic'fsl Ids I
F.1 t 30,708 0+00 Commerce City S. Platte River 1638 4089 1722 5040
F-I 2 29,940 85+00 Brighton Rd. 1638 4361 1806 5084
F-t 3 29,652 130+00 US.85 1639 4039 1846 5207
F-t 4 26,631 t60+00 1.76 1631 3126 1810 4759
F.I 5 26,368 202+00 SII.2 1631 3126 18t9 4762
F-I 6 25,920 265+00 Commerce City:RMA E. 96th 1703 4703 t897 4781
F-I 9 25,274 318+00 N of 88th 1732 4666 1931 4752
F.t 7 23,674 318+00 N of 88th 1726 4631 1924 4720
F-I 14 22,957 380+00 N of 88th 1780 4614 1985 4731
F-I 16 21,242 380+00 N of 88th 1773 4585 1973 4689
F-I 26 20,986 405+00 E of Potomac 1781 4587 1982 4693
F.I 28 20,161 405+00 E of Potomac 1780 4580 1976 4659
F.I 30 20,013 461+00 Chambers 1871 4590 2071 4680
F.I 34 19,348 507+00 N of 64th 1909 4570 2098 4652
F.I 36 19,021 507+00 N of 64tb 1909 4570 2098 4652
F.I 38 19,021 536+00 S of 64th 1925 4570 2108 4654
F-I 40 17,248 536+00 S of 64th 1925 4570 2108 4654
F.I 46 17,185 553+00 RMA:Denver Arsenal Bndey. 1929 4571 2110 4655
F.t 48 16,730 621+00 E 56th 1860 4318 1966 4477
F-I 49 16,602 637+00 Tower Rd. 1854 4307 1962 4466
F-I 51 16,257 667+00 Section 15 1861 4306 1975 4485
F-I 52 16,116 685+00 Section 15 1892 4864 2071 4785
F-t 53 t5,649 685+00 Section t 5 1858 4808 2045 4746
F.I 61 15,540 694+00 Section 15 1853 4801 2041 4739
F-I 83 9,882 694+00 Section 15 918 3076 1180 3235
F.t 74 9,658 779+00 Section 15 1056 3250 1341 3418
F.I 75 9,536 803+00 lIighline Canal 1061 3376 1343 3527
F.l 76 9,274 843+00 Denvcr:Aurora t055 3574 1329 3717
F-I 1077 9,018 843+00 Picadilly Rd. 1019 3303 1289 3440
F.I 1287 9,018 843+00 Picadilly Out lOI9 3303 t289 3440
F.1 1045 9,018 843+00 Picadilly tn 1385 3391 1605 3529
F-I 1044 8,576 868+00 SLA 1234 3163 1425 33t7
F.I t042 8,141 928+00 SLA 1079 3144 1277 3299
FR-6 1080 4,870 70+00 Dcnver:Aurora Picadilly Rd. 1303 2655 1130 25tl

. unadjusted flows used to compute volumes