Billing Spring #1 is an earth dam located in Garfield County, Montana, built in 1956. It carries a Low hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 295 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 Billing Spring #1
The primary purpose of Billing Spring #1 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by John W Billing (private). It impounds the Tr-spring Coulee.
The dam stands 24 feet tall and stretches 295 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 360 square miles. Completed in 1956, the structure is well into its service life at over 50 years old.
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 | Garfield |
| Nearest City | None |
| River/Stream | Tr-spring Coulee |
| Coordinates | 47.41740, -106.40310 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 295 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 128 acre-ft |
| Max Storage | 128 acre-ft |
| Normal Storage | 66 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 360 sq mi |
| Max Discharge | 125 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | John W Billing |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02338 |
| Federal ID | MT02338 |
| More Info | State Dam Safety Program |