Geier Irrigation Reservoir is an earth dam located in Weston County, Wyoming, built in 2008. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 42 ft42 ft tall and 885 ft long, taller than 88% of U.S. dams with a recorded height. 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 Geier Irrigation Reservoir
The primary purpose of Geier Irrigation Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Marlin Geier (private). It impounds the Oil Field Draw Offstream near Unnamed Road.
The dam stands 42 feet tall and stretches 885 feet across, creates a reservoir covering 32 acres, has a maximum storage capacity of 587 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2008, the structure is relatively new.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 06/26/2023.
At 42 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Wyoming |
| County | Weston |
| Nearest City | Unnamed Road |
| River/Stream | Oil Field Draw Offstream |
| Coordinates | 43.91444, -104.36361 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 38 ft |
| Dam Length | 885 ft |
| Year Completed | 2008 (18 years old) |
Storage & Hydraulics
| NID Storage | 587 acre-ft |
| Max Storage | 587 acre-ft |
| Normal Storage | 386 acre-ft |
| Surface Area | 32 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,478 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Marlin Geier |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/26/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02452 |
| Federal ID | WY02452 |
| More Info | State Dam Safety Program |