Big Park Watershed Site A-3
Big Park Watershed Site A-3 is an earth dam located in Crawford County, Iowa, built in 1970. It carries a Low hazard potential classification.
About Big Park Watershed Site A-3
The primary purpose of Big Park Watershed Site A-3 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 Crawford County Swcd (local government). It impounds the Tr-boyer River near Dunlap.
The dam stands 41 feet tall and stretches 810 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 210 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1970, 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 41 feet, this dam is taller than 88% 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 | Crawford |
| Nearest City | Dunlap |
| River/Stream | Tr-boyer River |
| Coordinates | 41.90280, -95.51770 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 810 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 210 acre-ft |
| Max Storage | 210 acre-ft |
| Normal Storage | 99 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Crawford County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00258 |
| Federal ID | IA00258 |
| More Info | State Dam Safety Program |