Des Moines County Roadgrade Dam 6-69-4 is an earth dam located in Des Moines County, Iowa, built in 1985. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 500 ft long, taller than 55% of U.S. dams with a recorded height. 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 Des Moines County Roadgrade Dam 6-69-4
Des Moines County Roadgrade Dam 6-69-4 is a dam in Des Moines, Iowa. The dam is owned by Des Moines County Board of Supervisors (local government). It impounds the Tr- Skunk R. near Augusta.
The dam stands 26 feet tall and stretches 500 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 75 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1985, the structure is 41 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.
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Location
| State | Iowa |
| County | Des Moines |
| Nearest City | Augusta |
| River/Stream | Tr- Skunk R. |
| Coordinates | 40.80970, -91.36600 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 500 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Des Moines County Board of Supervisors |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02362 |
| Federal ID | IA02362 |
| More Info | State Dam Safety Program |