Alcova
NORTH PLATTE RIVER·
Natrona, Wyoming·
Built 1937·
Earth·
265 ft tall
Physical Details
| Dam Height | 265 ft (taller than 99.9% in WY) |
| Dam Length | 763 ft |
| Dam Type | Earth |
| Max Storage | 184.3K acre-ft |
| Normal Storage | 184.4K acre-ft |
| Surface Area | 2,471 acres |
| Drainage Area | 10,376 sq mi |
| Max Discharge | 55,000 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | WY01290 |
Safety Information
High Hazard
Loss of human life is likely if the dam fails
Emergency Action Plan: Yes
Last Inspection: June 2, 2020
State Regulated: Yes
Regulatory Agency: SEO
Ownership
RECLAMATION
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Alcova?
Alcova is classified as High Hazard. Loss of human life is likely if the dam fails.
Who owns Alcova?
Alcova is owned by RECLAMATION (Federal Government).
When was Alcova last inspected?
Alcova was last inspected on June 2, 2020.
When was Alcova built?
Alcova was completed in 1937, making it 89 years old.
Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.