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<br />Table 4.4 Major Drainageway Peak Discharges for Existing Conditions.
<br />
<br /> " , ' ,
<br /> . UDSWMM Drainage Peak Discharge (cfs) , '
<br /> Location Area, ' \ I '25~~r Iso-vr
<br />, Element (acres) 2eyr 5-yr '. 10-vr . 100- yr
<br /> GODDING HOLLOW BASIN',' , , , "",,' '';" "
<br />WCR 26 I 202 1 18,320 562 11,189 1,891 I 3,523 5,128 7,000
<br />Tri-Town Basin Inflow 751 I 18,040 575 1,212 1,907 3,539 5,119 6,997
<br />WCR 24 203 I 11,350 292 664 996 1,988 3,209 4,492
<br />Basin .43 Inflow 703 I 10,660 283 I 679 991 1,998 I 3,242 4,540
<br />WCR 22 204 10,500 282 678 984 1,990 3,227 4,514
<br />WCR 20 205 9,730 286 I 689 I 975 2,009 3,272 I 4,583
<br />WCR 18 I 206 8,890 298 I 699 I 957 2,044 3,361 4,727
<br />WCR16 207 7,310 253 621 I 855 1,978 I 3,336 4,735
<br />West Tributary Inflow 707 6,370 238 588 I 821 1,886 3,164 4,439
<br />SHW 52 308 4,200 218 I 545 749 1,704 2,919 4,007
<br />Basins 30 and 33 Inflow 708 4,200 221 590 891 2,232 3,207 4,170
<br />Coalridge Ditch Detention 309 3,550 201 523 781 1,964 2,824 3,672
<br />(outflow)
<br />Coalridge Ditch Detention I 208 3,550 202 603 1,070 2,002 2,851 3,698
<br />(inflow)
<br />Basins 31 and 32 Inflow 1 709 1 3,280 215 610 1,057 1,959 2,784 3,612
<br />Confluence with Basins 31 and 32 209 2,470 162 464 1 806 1,492 2,110 2,747
<br />WCR 12 210 2,280 182 456 I 776 1,430 2,016 2,618
<br />Basin 34 Inflow , 711 2,140 144 I 426 731 1,363 1,949 2,531
<br />Confluence with Basin 34 211 1,930 134 392 673 1,252 1,794 2,330
<br />CO National Speedway 712 1,810 130 383 652 1,213 1,738 2,247
<br />Upstream of CO National I 212 830 33 I 150 272 521 758 985
<br />Speedway
<br />1-25 213 760 35 144 I 257 491 714 920
<br />WCR10 216 350 23 87 157 292 422 I 536
<br />UPRR 1 217 1 220 17 69 120 213 298 I 374
<br />......,:"",...,".' ',',:...' > ,:',' i'iu;TOWN BASiN " ..; ,"> ': ':',..' . '.>.
<br />. - , . . . " "." ,:
<br />.',"-" -- ' ",-- ',"", ',:, ,"
<br />Confluence with Godding Hollow 751 I 6,690 296 700 1,223 2,247 3,096 I 3,957
<br />WCR 24 252 I 6,130 294 696 1,195 2,177 2,989 3,819
<br />WCR 22 253 5,520 338 796 11,261 2,212 I 3,023 3,844
<br />WCR 20 254 4,440 336 769 1,295 2,251 I 3,050 3,842
<br />Basin 75 Inflow I 754 4,090 341 767 1,272 2,158 I 2,912 I 3,659
<br />WCR 18 I 255 3,370 334 729 1,178 2,075 I 2,765 I 3,445
<br />WCR 13 (downstream) I 755 3,200 318 699 1,126 1,964 I 2,615 I 3,268
<br />WCR 13 (upstream) I 256 1 2,550 272 I 577 911 1,545 2,060 2,593
<br />M'Clure Street (Firestone) I 258 I 2,350 255 543 I 857 1,449 I 1,957 2,492
<br />WCR 16 760 1 1,730 188 1 409 651 1 1;111 I 1,517 I 1,937
<br />Main Street (Frederick) 761 I 1,730 193 1 416 I 659 1,176 1,644 I 2,108
<br />SHW 52 1 262 I 820 226 I 424 602 I 930 1,240 I 1,519
<br />Second Street (Dacono) I 263 I 290 16 I 66 I 116 209 I 295 I 372
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<br />T:\OPENlCoweldOllcoweldOllbI4..4.wpd
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<br />4.13
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<br />September 8. 1999
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