Twelve Mile Creek Watershed Site 30
Twelve Mile Creek Watershed Site 30 is an earth dam located in Union County, Iowa, built in 1986. It carries a Low hazard potential classification.
About Twelve Mile Creek Watershed Site 30
The primary purpose of Twelve Mile Creek Watershed Site 30 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- Sand Cr. near Westerville.
The dam stands 35 feet tall and stretches 490 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 175 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1986, the structure is 40 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 35 feet, this dam is taller than 82% 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 | Westerville |
| River/Stream | Tr- Sand Cr. |
| Coordinates | 40.95120, -94.01520 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 490 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 175 acre-ft |
| Max Storage | 175 acre-ft |
| Normal Storage | 49 acre-ft |
| Surface Area | 6 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 | IA02325 |
| Federal ID | IA02325 |
| More Info | State Dam Safety Program |