Flathead County Stormwater Retention Pond
Flathead County Stormwater Retention Pond is an earth dam located in Flathead County, Montana, built in 1999. It carries a Significant hazard potential classification.
About Flathead County Stormwater Retention Pond
The primary purpose of Flathead County Stormwater Retention Pond 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 Flathead County Solid Waste Dept. (local government). It impounds the Tr-stillwater River near Kalispell.
The dam has a maximum storage capacity of 69 acre-feet. Completed in 1999, the structure is 27 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.
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Location
| State | Montana |
| County | Flathead |
| Nearest City | Kalispell |
| River/Stream | Tr-stillwater River |
| Coordinates | 48.30703, -114.34251 |
Physical Characteristics
| Dam Type | Earth |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 69 acre-ft |
| Max Storage | 69 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | FLATHEAD COUNTY SOLID WASTE DEPT. |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03844 |
| Federal ID | MT03844 |
| More Info | State Dam Safety Program |