Talmage Hill Dam is an earth dam located in Union County, Iowa, built in 1985. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 400 ft long, taller than 50% 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 Talmage Hill Dam
The primary purpose of Talmage Hill Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Union County Conservation Board (local government). It impounds the Tr- Thompson River near Grand River.
The dam stands 25 feet tall and stretches 400 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 123 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. The most recent inspection on record was 04/18/1995. That was over 31 years ago.
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Location
| State | Iowa |
| County | Union |
| Nearest City | Grand River |
| River/Stream | Tr- Thompson River |
| Coordinates | 41.03000, -94.09740 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 400 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 123 acre-ft |
| Max Storage | 123 acre-ft |
| Normal Storage | 70 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Union County Conservation Board |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/18/1995 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02907 |
| Federal ID | IA02907 |
| More Info | State Dam Safety Program |