Enl. George H. Marshall
Enl. George H. Marshall is an earth dam located in Johnson County, Wyoming, built in 2007. It carries a Low hazard potential classification and has a fair condition assessment.
About Enl. George H. Marshall
The primary purpose of Enl. George H. Marshall is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Carbon Creek Energy, Llc (private). It impounds the Yoga Draw near Arvada.
The dam stands 46 feet tall and stretches 220 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 95 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2007, 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 06/20/2023.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Wyoming |
| County | Johnson |
| Nearest City | Arvada |
| River/Stream | Yoga Draw |
| Coordinates | 44.19889, -106.21972 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 37 ft |
| Dam Length | 220 ft |
| Year Completed | 2007 (19 years old) |
Storage & Hydraulics
| NID Storage | 95 acre-ft |
| Max Storage | 95 acre-ft |
| Normal Storage | 64 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 464 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CARBON CREEK ENERGY, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/20/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02399 |
| Federal ID | WY02399 |
| More Info | State Dam Safety Program |