Upper Cottonwood Dam
Upper Cottonwood Dam is an earth dam located in Fremont County, Wyoming, built in 1972. It carries a Low hazard potential classification.
About Upper Cottonwood Dam
The primary purpose of Upper Cottonwood Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Bureau Of Reclamation (federal). It impounds the Cottonwood Drain Draw near Thermopolis.
The dam stands 14 feet tall and stretches 300 feet across, creates a reservoir covering 39 acres, has a maximum storage capacity of 194 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1972, 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 | Wyoming |
| County | Fremont |
| Nearest City | Thermopolis |
| River/Stream | Cottonwood Drain Draw |
| Coordinates | 43.31140, -108.38100 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 12 ft |
| Dam Length | 300 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 194 acre-ft |
| Max Storage | 194 acre-ft |
| Normal Storage | 194 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 20,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | BUREAU OF RECLAMATION |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01301 |
| Federal ID | WY01301 |
| More Info | State Dam Safety Program |