Bonneau Dike
Bonneau Dike is an earth dam located in Chouteau County, Montana, built in 2005. It carries a Undetermined hazard potential classification and has a satisfactory condition assessment.
About Bonneau Dike
The primary purpose of Bonneau Dike is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bia (federal). It impounds the Box Elder Creek near Havre.
The dam stands 15 feet tall and stretches 893 feet across, creates a reservoir covering 136 acres, has a maximum storage capacity of 2,571 acre-feet, and collects water from a drainage area of 49 square miles. Completed in 2005, the structure is relatively new.
Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/16/2019.
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Location
| State | Montana |
| County | Chouteau |
| Nearest City | Havre |
| River/Stream | Box Elder Creek |
| Coordinates | 48.30060, -109.86190 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 893 ft |
| Year Completed | 2005 (21 years old) |
Storage & Hydraulics
| NID Storage | 2,571 acre-ft |
| Max Storage | 2,571 acre-ft |
| Surface Area | 136 acres |
| Drainage Area | 49 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | Undetermined |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/16/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MT01054 |
| Federal ID | MT01054S001 |
| More Info | State Dam Safety Program |