Drainage Overview - Maricopa County Department of Transportation

Flooding Source and Location
Circle City Area Wash 7
Table 3. Summary of Discharges (Continued)
Drainage
Area
Peak Discharges (cfs)
(Square Miles) 10-Year 50-Year 100-Year 500-Year
At Black Mountain Road 0.57 109 192 215 -- 1
Trilby Wash at Circle City
At Black Mountain Road (discharges
decrease due to storage behind
AT&SFRR) 16.10 1,297 2,280 2,780 -- 1
Upstream of AT&SFRR 16.10 1,380 2,428 2,970 -- 1
Trilby Wash - CAP to Black
Mountain Road
Upstream of CAP -- 1
Upstream of Jomax Road -- 1
At Patton Road -- 1
Upstream of White Wing Road -- 1
At Carefree Highway -- 1
Trilby Wash - McMicken Dam to
CAP
47
-- 1
-- 1
-- 1
-- 1
-- 1
-- 1
-- 1
-- 1
-- 1
-- 1
3,851 -- 1
3,805 -- 1
3,756 -- 1
3,322 -- 1
2,995 -- 1
At McMicken Dam 113.00 4,773 8,999 11,688 -- 1
At 195th Avenue, Extended (area
computed by specific discharge
transfer equation) 112.40 4,730 8,920 11,625 -- 1
650 feet upstream of 203rd Avenue,
Extended (area computed by specific
discharge transfer equation) 111.77 4,690 8,845 11,560 -- 1
500 feet downstream of Deer Valley
Road, Extended (area computed by
specific discharge transfer equation) 103.94 4,646 8,769 11,499 -- 1
150 feet downstream of Deer Valley
Road (Extended) 67.16 3,065 5,750 7,430 -- 1
-- 1 Not Computed