Soap Creek
Soap Creek is an earth dam located in Lewis and Clark County, Montana, built in 1950. It carries a Low hazard potential classification.
About Soap Creek
The primary purpose of Soap Creek is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Soap Creek Cattle (private). It impounds the Tr-flat Creek near Cascade.
The dam stands 25 feet tall and stretches 500 feet across, and has a maximum storage capacity of 222 acre-feet. Completed in 1950, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Montana |
| County | Lewis and Clark |
| Nearest City | Cascade |
| River/Stream | Tr-flat Creek |
| Coordinates | 47.34920, -112.33980 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 500 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 222 acre-ft |
| Max Storage | 222 acre-ft |
| Normal Storage | 132 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | SOAP CREEK CATTLE |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00870 |
| Federal ID | MT00870 |
| More Info | State Dam Safety Program |