Mccrea 12 is an earth dam located in Marshall County, Minnesota, built in 2008. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 20 ft20 ft tall and 29,000 ft long. 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 Mccrea 12
The primary purpose of Mccrea 12 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 Wd of Middle-snake-tamarac Rivers (local government). It impounds the Snake River-tr near Warren.
The dam stands 20 feet tall and stretches 29,000 feet across, creates a reservoir covering 1,736 acres, has a maximum storage capacity of 11,226 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 2008, the structure is relatively new.
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 09/22/2021.
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Location
| State | Minnesota |
| County | Marshall |
| Nearest City | Warren |
| River/Stream | Snake River-tr |
| Coordinates | 48.18087, -96.65140 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 29,000 ft |
| Year Completed | 2008 (18 years old) |
Storage & Hydraulics
| NID Storage | 11,226 acre-ft |
| Max Storage | 11,226 acre-ft |
| Normal Storage | 700 acre-ft |
| Surface Area | 1,736 acres |
| Drainage Area | 32 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Wd of Middle-snake-tamarac Rivers |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/22/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01448 |
| Federal ID | MN01448 |
| More Info | State Dam Safety Program |