Jefferson County Roadgrade Dam 24-72-11
Jefferson County Roadgrade Dam 24-72-11 is an earth dam located in Jefferson County, Iowa, built in 1984. It carries a Low hazard potential classification.
About Jefferson County Roadgrade Dam 24-72-11
Jefferson County Roadgrade Dam 24-72-11 is a dam in Jefferson, Iowa. The dam is owned by Jefferson County Board Of Supervisors (local government). It impounds the Tr- Big Cedar Cr. near Big Cedar Creek.
The dam stands 25 feet tall and stretches 800 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1984, the structure is 42 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 | Jefferson |
| Nearest City | Big Cedar Creek |
| River/Stream | Tr- Big Cedar Cr. |
| Coordinates | 41.02190, -92.07790 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 800 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Jefferson County Board of Supervisors |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02248 |
| Federal ID | IA02248 |
| More Info | State Dam Safety Program |