Idot Roadgrade Dam 7-88-47
Idot Roadgrade Dam 7-88-47 is an earth dam located in Woodbury County, Iowa, built in 1979. It carries a Low hazard potential classification.
About Idot Roadgrade Dam 7-88-47
The primary purpose of Idot Roadgrade Dam 7-88-47 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Iowa Department Of Transportation (state). It impounds the Tr-missouri River near Missouri River.
The dam stands 25 feet tall and stretches 328 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 117 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1979, the structure is 47 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 11/12/1986. That was over 39 years ago.
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Location
| State | Iowa |
| County | Woodbury |
| Nearest City | Missouri River |
| River/Stream | Tr-missouri River |
| Coordinates | 42.44640, -96.36400 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 328 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 117 acre-ft |
| Max Storage | 117 acre-ft |
| Normal Storage | 23 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Iowa Department of Transportation |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 11/12/1986 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02135 |
| Federal ID | IA02135 |
| More Info | State Dam Safety Program |