High Lake
High Lake is an earth dam located in Ravalli County, Montana, built in 1938. It carries a High hazard potential classification and has a poor condition assessment.
About High Lake
The primary purpose of High Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Blodgett Creek Irrigation District (local government). It impounds the Tr-blodgett Creek near Victor.
The dam stands 30 feet tall and stretches 500 feet across, creates a reservoir covering 44 acres, has a storage capacity of 743 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1938, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. Notably, no emergency action plan is currently on file for this high-hazard dam.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Montana dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Montana |
| County | Ravalli |
| Nearest City | Victor |
| River/Stream | Tr-blodgett Creek |
| Coordinates | 46.25580, -114.36370 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 500 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 743 acre-ft |
| Normal Storage | 743 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BLODGETT CREEK IRRIGATION DISTRICT |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Emergency Action Plan | No |
Identifiers
| NID ID | MT01171 |
| Federal ID | MT01171 |
| More Info | State Dam Safety Program |