Laas is an earth dam located in Liberty County, Montana, built in 1955. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 800 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 Laas
The primary purpose of Laas 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 Lass Farms Inc (private). It impounds the Eagle Creek near No Town.
The dam stands 15 feet tall and stretches 800 feet across, has a maximum storage capacity of 313 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 1955, 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 | Liberty |
| Nearest City | No Town |
| River/Stream | Eagle Creek |
| Coordinates | 48.61720, -111.18460 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 800 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 313 acre-ft |
| Max Storage | 313 acre-ft |
| Normal Storage | 123 acre-ft |
| Drainage Area | 25 sq mi |
| Max Discharge | 4,305 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Lass Farms Inc |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00325 |
| Federal ID | MT00325 |
| More Info | State Dam Safety Program |