Woodbury County Roadgrade Dam 30-88-43 is an earth dam located in Woodbury County, Iowa, built in 1999. It carries a Low hazard potential classification.
Dam profile
NID height · 38 ft38 ft tall and 682 ft long, taller than 84% 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 Woodbury County Roadgrade Dam 30-88-43
Woodbury County Roadgrade Dam 30-88-43 is a dam in Woodbury, Iowa. The dam is owned by Woodbury County Board of Supervisors (local government). It impounds the Tr- Little Sioux River near Anthon.
The dam stands 38 feet tall and stretches 682 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 1999, the structure is 27 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 38 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | Iowa |
| County | Woodbury |
| Nearest City | Anthon |
| River/Stream | Tr- Little Sioux River |
| Coordinates | 42.40010, -95.88540 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 682 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Woodbury County Board of Supervisors |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03249 |
| Federal ID | IA03249 |
| More Info | State Dam Safety Program |