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

EXISTIN'G MODEl. FUTI:Rf.: MODF.1. BASE MODEL
~:XISTL"'G Dn'ELOPM'ENT FUTURE DEVELOPMENT FUTURE DEvELOPMENT
ACCUM JURlSDIC1l0;'llAL EXISTlN(; t'ACII,nU:S EXISTING DI.:n.:N1'ION MASTERPLA;'Il CO:'-/VEY ANCE MASn:RPl..A:,-/ FACII,HIt:S
"f.An DESIGN AREA STATION ROI]NDARI~:S COMMl:NTS l-n:AR s...YEAR la-YEAR 5O-YEAR loo..YF.AR 500- n:AR 1.YEAR s...n:AR IO.YF.AR SO.YEAR 1000YF.AR Sl)O-Y":AK l-YEAR 5-YEAR IO-YEAR SO-YEAR 100- YEAR 500- YEA R
POINT ACRES "00 1m 'OiS,UiS' 'US' 'US' 'US' 'C'S' .crS' 'CFS' 'CFS' 'C'S' 'C'S) IC'S' IC'S, IC'S, leFS} 'US) IC'SI ICFS' ,CFS) ,CFS)
'.1 I 30470 0 COMMERCE CITY S PLA ITE RIVER .64 960 1604 4572 &2]8 9544 1556 1&18 ]148 6880 8952 13198 715 1]30 1&10 3099 40K9 5659
'-I 2 19702 85 BRIGHTON Bt VD 48J 999 1665 4651 63tJ 9631 1664 2837 3422 7272 9440 13778 850 1339 ]630 3448 4443 6099
.',1 3 294]4 130 IIWY85 '90 ]014 16117 4680 6346 %77 1721 2883 3473 7310 9488 1382\ 86] 1339 1631 3278 4180 5652
'-I 4 26394 160 1-76 48J 993 16H 4500 6113 9315 1693 2801 3365 7009 9U9 13242 62J 13.18 1628 2756 3121 3M22
F-I 5 26!31 201 MAUUHWY 1 .8< 1005 1660 4525 6142 9360 1706 2814 3178 7025 9157 13160 62J 1339 1629 2756 3122 3823
,-. 6 25683 265 COMMERCE CITY:RMA E96TII 498 1025 1687 4542 6147 9359 1831 2946 3541 1261 9415 13608 624 1356 1703 404-1 4703 5981
'-I 9 25037 31S N OF 88TH 507 1038 1700 4520 6095 9279 1882 2999 3607 7345 9529 13689 626 \378 \732 4012 4666 590-1
f-I 7 23~37 31S N OF 88TH 507 1033 1682 4434 5946 90-13 1882 299] 3588 7224 9325 \3332 626 1376 1726 4003 4631 5825
F-I 14 22720 ,"0 NOFSO.11I SI' 1052 1710 4443 59]6 9030 1959 3078 3693 7386 9521 1J50] 631 1415 1780 4008 4614 5785
F-I 16 21434 l80 N OF 80TH 5lJ 1032 1616 4339 5782 8786 1950 3063 3668 7271 9335 13169 626 1410 1773 3981 4585 5142
'-I 26 21178 405 E OF POTOMAC "6 1030 1677 4]]8 5774 8775 1%1 ]075 3683 71K9 9]55 13181 616 1416 1781 3984 4587 5744
F-I " 20352 .05 E OF POTOMAC 504 .005 1653 4294 5724 8689 1961 ]075 ]679 72]9 9267 1J0]4 626 1416 1780 .3976 4580 5731
,-. 30 20205 461 CHAMBERS 512 1016 ]677 4326 5763 8770 204<i 3169 3795 7.... 9580 13337 631 1479 187! 3994 4590 5740
'-I 34 19616 507 NOF64TH 522 1033 1700 4331 5755 8795 2061 3185 3811 7447 9542 13213 636 1508 1909 3980 4570 5708
'.1 36 19]]4 507 N OF b4TH 522 10]2 1699 4327 5748 878] 2061 3185 3KIO 7441 9528 13]82 636 1508 1909 3980 4570 5708
,-. l8 19]34 5)6 S OF b4TtI 526 1039 1710 4343 5767 8830 2066 3191 3817 7456 9542 1318M 636 1522 1925 3981 4570 5709
'-I 40 19334 536 S OF 64TI1 526 10]9 1710 4]43 5767 8830 2066 3191 3817 7456 9542 13188 636 [522 1925 ]981 4570 5709
'-I 46 19174 m RMA:DENVER ARSENAl. BNDR 526 1039 1711 4345 5770 882!! 206' 3192 ]826 7472 9560 13198 636 1526 1929 ]982 4571 5710
F-I 489 170!8 598 531 1047 1717 4357 5771 8322 2080 ]278 ]913 7526 9309 \2706 1023 15\9 1864 3752 4325 "'IS
,-. " 16896 621 E56TH 531 1045 1718 4359 5772 8]17 2083 .3298 3930 7537 9319 12710 1020 1513 1860 3747 4318 5407
'-I 49 16659 637 TOWER RD 529 \040 1715 4352 5766 IBO] 2081 3299 3933 75]0 9108 12684 1016 1505 \854 37J7 4]07 5J91
F-I 51 16314 667 SEe 15 529 1039 1713 4336 5741 8258 2197 3484 4101 7678 9475 12842 10]9 1505 186[ 3751 4306 5384
'-I 808 16314 667 ]0]9 1505 1861 3751 4306 5384
'-1 132 16]\4 667 529 10]9 1713 4336 5741 ll25l1 21',17 ]484 4101 7678 9475 12842 1024 1519 1887 ]963 4857 6732
F.I 85 16]14 685 529 10]9 1713 4336 5741 8258 2197 3484 4101 7678 9475 12842 1024 1519 1887 3%3 4857 6732
'-I 52 16314 685 SEC 15 530 [0"" 1714 4339 5745 8259 2230 3512 4128 77[8 9522 12895 1028 1523 Ian 3%7 4864 6747
F.I 53 15706 685 SEC 15 521 1024 1691 4290 5687 8\73 2180 "'" 4058 7613 9423 12747 1007 1485 1858 ]911 4808 6644
'-I 61 15597 694 SEC 15 521 1024 ]689 4287 5681 8158 2175 3440 4051 7603 9408 12730 1004 1479 1853 3903 4801 6629
'-1 83 9882 694 SEC 14 J52 677 109' "90 3997 5976 1112 2156 2595 5451 6947 9610 46& 696 918 2340 3076 4-462
,-. 74 965K 77' SEe 23 365 6'6 1123 2953 40" 61]6 1780 273!ol ]18! 6457 8]95 11165 482 772 1056 2467 3250 46R]
,.\ 75 95]6 80) HIGH CANAL 366 697 liB 2953 '092 6(\5 1819 277] 3204 6503 8266 11247 479 783 [061 2514 3.376 4736
F-I 76 9274 843 DENVER:AURORA 567 698 1124 2947 4080 6094 1825 2773 3189 6505 8269 11244 469 797 1055 2691 3574 4841
'.1 1077 9018 843 PICADII.LY RD '" 680 1098 2892 4017 5997 1767 2692 3096 6380 11134 11045 459 760 1019 2497 3303 45KO
'-I 1287 90 IS 843 PICADlLI. Y OUT 459 760 10[9 2497 3303 4580
'-I 945 90 IS '43 PICADlll Y eN 359 680 1098 2892 4017 5997 1767 2692 3096 6380 8134 1[045 853 1278 1414 2&27 3521 4598
'-I 9J7 7686 99. SLA 354 663 1083 2864 )994 5922 1689 2503 2815 6100 7880 10655 56] 766 900 2267 JlOO 4-411
F-l 1237 7155 994 SI.A .65 548 830 2170 3000 4246
'-I 934 7[55 1023 348 657 1077 2844 3973 5866 1550 2298 2564 5762 7485 10128 1090 1625 1767 3642 4518 605)
F-' 'JI 6387 1023 406 986 1421 Jl4-4 4458 6350 1485 2467 3138 58[9 7728 10287 884 1437 \731 292\ 4012 5424
,., 1227 4141 1097 >-< 167 369 593 lJI8 1733 2100
F-I 927 4141 1126 328 750 1028 2224 3145 4-483 792 1420 1888 3653 4894 6482 789 1312 1675 3]28 .009 5265
1-'-1 914 3501 1126 W 595 83) 1935 2764 ]932 530 11]9 1523 306] 4119 5521 J75 780 1047 2136 2770 ]690
'-I '" 350\ 1]42 244 598 8J7 1946 2782 3956 532 1123 1528 3071 4145 5551 380 786 1055 2171 2800 ]725
F-I 907 2906 1196 229 587 '02 1845 2621 3671 458 %0 l316 2705 3611 4814 302 618 823 1659 2157 2909
F-I IZ25 1984 1268 >-< 82 109 3IJ 706 811 943
F-I 925 1984 1268 170 416 610 1460 1988 2701 321 670 915 194.l. 2573 ]478 Jl7 670 9" 1944 2573 3478
F-I 902 1376 12611 AURORA 97 251 376 870 1193 1644 185 J97 552 1147 1571 2133 185 J97 552 1147 \57l 2133
FR-I " l7J 40 " 91 126 267 346 466 1J8 240 304 540 661 862 138 240 304 540 661 862
0' 601 2694 15 COMMERCE CITY UPRR 414 664 811 1418 1846 2648 7J2 1I24 lJ54 2345 2963 3917 985 1591 1953 3401 4284 5638
OF 603 2285 15 UPRR 166 295 380 1003 1487 2185 437 705 868 1606 2092 2805 656 1106 1370 2J91 30]8 4054
0' 615 1792 15 1-76 29 150 267 785 1187 1747 245 412 514 989 lJ51 1850 317 535 661 1201 1536 2042
OF 616 1792 " 1-76 62 156 278 816 1228 \802 ]5& 555 672 1155 1454 1924 J75 625 770 1322 1666 2179
OF 618 1568 " 1-76 12 1J5 24) 714 1094 1598 2J8 365 440 760 1059 1507 441 709 863 140M 1748 2273
DF 619 1382 " SOFI"76 12 125 222 642 965 \407 221 ]]5 401 645 896 1280 405 637 768 1201 1484 1883
DF 620 1229 68 BURLINGTON DITCH 17 141 240 664 981 ,.",2 157 250 302 6)4 904 128M 202 JJ7 411 662 828 1053
OF 612 11]9 88 HWY2 30 149 246 660 %5 1365 178 257 305 630 906 1280 . . . . . .
OF 621 922 88 HWY2 30 lIJ 181 499 7J1 1042 178 256 303 470 671 958 ]03 186 2J3 384 476 612
OF 613 819 III COMMERCE CITY:RMA E96TH 14 116 181 477 691 970 14 "' 177 460 664 9JJ 17 1J4 210 m 776 107'1
0' 614 Jl4 [68 HM.\ E88TH IJ 67 IOJ 262 "3 485 IJ 67 103 262 J5J 485 IJ 67 103 262 J53 485
DF-I.! 602 410 0 lJPRR 247 369 '40 706 814 1122 300 436 512 792 955 1213 321 486 580 1002 1249 1609
DF-L1 604 166 40 E,%TH 170 26' 315 503 612 782 239 340 398 587 706 m 2J9 340 398 587 706 885
DF-1.2 607 49J 0 SOFI-76 "8 266 ))1 568 724 955 306 453 5J8 839 1028 1333 J63 595 740 13211 1662 2149
DH2 605 301 41 S OF %TH 61 146 19' 396 521 705 247 397 478 768 963 1242 300 486 588 947 1183 1515
DF-LZ 606 90 71 BURLINGTON DITCH J2 72 97 194 W ))0 88 148 1S7 JIJ 389 500 8< 148 187 JIJ 389 500

II

Table 5

I

SELECTED PEAK FLOWS
FIRST CREEK, DFA 0055

Page I of3

I

UNADJUSTED R4lNFALl nJR TRIBUTARIESlAlJJllSTED RAINFALL FOR H,41NCHANJ'\'EL UPSTRE 4-\fOF DESIG,y P01....T9J./

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

... Design Point omitted from study due to reartgnments of flow