Clarke Co. Roadgrade Dam 8-73-25 is an earth dam located in Clarke County, Iowa, built in 1992. It carries a Low hazard potential classification.
Dam profile
NID height · 43 ft43 ft tall and 1,070 ft long, taller than 89% 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 Clarke Co. Roadgrade Dam 8-73-25
Clarke Co. Roadgrade Dam 8-73-25 is a dam in Clarke, Iowa. The dam is owned by Clarke County Board of Supervisors (local government). It impounds the Tr- Squaw Creek near Indianola.
The dam stands 43 feet tall and stretches 1,070 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 155 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1992, the structure is 34 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.
At 43 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Iowa |
| County | Clarke |
| Nearest City | Indianola |
| River/Stream | Tr- Squaw Creek |
| Coordinates | 41.14000, -93.75000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 43 ft |
| Dam Length | 1,070 ft |
| Year Completed | 1992 (34 years old) |
Storage & Hydraulics
| NID Storage | 155 acre-ft |
| Max Storage | 155 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Clarke County Board of Supervisors |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02639 |
| Federal ID | IA02639 |
| More Info | State Dam Safety Program |