<br /> Table 2. Summary of Discharges
<br /> Drainage Area Peak Discharges (Cubic Feet per Second)
<br /> F1oodinl!: Source and Location ( SQuare Miles) lO-Year SO-Year 100-Year 500-Year
<br /> Basin 4100
<br /> At Mouth l.8 240 340 380 500
<br /> Big Dry Creek
<br /> At Union Pacific Railroad 84.2 7,700 12,200 14,000 18,800
<br /> At Interstate 25 56.84 3,830 7,010 8,839 16,729
<br /> At 120th Avenue 43.54 2,480 6,290 8,109 15,849
<br /> Upstream of Confluence
<br /> of Airport Creek 32.89 2,060 5,260 6,929 13,370
<br /> At .8 mile downstream of
<br /> Denver-Boulder Turnpike 21.46 1,720 4,220 5,669 10,659
<br /> At .2 mile upstream of
<br /> Confluence with Walnut Creek 19.66 1,050 2,270 3,040 5,l20
<br /> At Stanley Lake Outflow 16.75 145 320 675 1,099
<br />N At Stanley Lake Inflow 16.75 l,710 3,980 4,930 9,040
<br />....,
<br /> Box Elder Creek
<br /> At Interstate 70 200.00 9,700 21,500 26,300 35,900
<br /> Brantner Gulch
<br /> At the City of Thornton
<br /> Corporate Limits l.3 480 720 830 1,lOO
<br /> Comanche Creek
<br /> Downstream of Confluence With
<br /> Little Comanche Creek 112.4 7,420 16,440 20,200 28,100
<br /> At County Limits 95.0 6,820 15,110 18,570 25,800
<br /> Grange Hall Creek
<br /> At Riverdale Road 7.1 l,700 2,067 2,214 2,600
<br /> At Colorado Boulevard 6.3 1,616 l,798 l,943 2,000
<br /> Downstream of Confluence With
<br /> North Fork Grange Hall Creek 4.7 1,058 1,161 l,204 l,600
<br />
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