Three Mile Creek Watershed Site 58
Three Mile Creek Watershed Site 58 is an earth dam located in Union County, Iowa, built in 1968. It carries a Low hazard potential classification.
About Three Mile Creek Watershed Site 58
The primary purpose of Three Mile Creek Watershed Site 58 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 Union County Swcd (local government). It impounds the Tr-three Mile Creek near Afton.
The dam stands 32 feet tall and stretches 469 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 73 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1968, the structure is well into its service life at over 50 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 32 feet, this dam is taller than 76% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Union |
| Nearest City | Afton |
| River/Stream | Tr-three Mile Creek |
| Coordinates | 41.14010, -94.31900 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 469 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 73 acre-ft |
| Max Storage | 73 acre-ft |
| Normal Storage | 47 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Union County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01090 |
| Federal ID | IA01090 |
| More Info | State Dam Safety Program |