Floodwater Ret Dam Ss-8.5 is an earth dam located in Sedgwick County, Colorado, built in 1990. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 1,000 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Floodwater Ret Dam Ss-8.5
The primary purpose of Floodwater Ret Dam Ss-8.5 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Sedgwick-sand Draws Wtsd. Cons. Dist. (frame, Larr (local government). It impounds the South Platte near Ovid.
The dam stands 21 feet tall and stretches 1,000 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 102 acre-feet. Completed in 1990, the structure is 36 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 06/09/2021.
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Location
| State | Colorado |
| County | Sedgwick |
| Nearest City | Ovid |
| River/Stream | South Platte |
| Coordinates | 40.98733, -102.42495 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 17 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 102 acre-ft |
| Max Storage | 102 acre-ft |
| Normal Storage | 61 acre-ft |
| Surface Area | 12 acres |
| Max Discharge | 422 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Sedgwick-sand Draws Wtsd. Cons. Dist. (frame, Larr |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/09/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02791 |
| Federal ID | CO02791 |
| More Info | State Dam Safety Program |