North Pigeon Cr Watershed Site M-1
North Pigeon Cr Watershed Site M-1 is an earth dam located in Pottawattamie County, Iowa, built in 1993. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About North Pigeon Cr Watershed Site M-1
The primary purpose of North Pigeon Cr Watershed Site M-1 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by West Pottawattamie County Swcd (local government). It impounds the North Pigeon Creek near Crescent.
The dam stands 62 feet tall and stretches 750 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 1,660 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1993, the structure is 33 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/11/2022.
At 62 feet, this dam is taller than 95% of all dams in the United States.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Pottawattamie |
| Nearest City | Crescent |
| River/Stream | North Pigeon Creek |
| Coordinates | 41.44710, -95.82030 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 62 ft |
| Dam Height | 62 ft |
| Dam Length | 750 ft |
| Year Completed | 1993 (33 years old) |
Storage & Hydraulics
| NID Storage | 1,660 acre-ft |
| Max Storage | 1,660 acre-ft |
| Normal Storage | 575 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 4 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | West Pottawattamie County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/11/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02662 |
| Federal ID | IA02662 |
| More Info | State Dam Safety Program |