Crooked Arroyo Det Ca-2
Crooked Arroyo Det Ca-2 is an earth dam located in Otero County, Colorado, built in 1975. It carries a Significant hazard potential classification and has a fair condition assessment.
About Crooked Arroyo Det Ca-2
The primary purpose of Crooked Arroyo Det Ca-2 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Otero County (nichols, Lex) (local government). It impounds the Crooked Arroyo near La Junta.
The dam stands 56 feet tall and stretches 4,254 feet across, creates a reservoir covering 705 acres, has a maximum storage capacity of 24,047 acre-feet, and collects water from a drainage area of 90 square miles. Completed in 1975, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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. An emergency action plan is in place for this dam. The most recent inspection on record was 10/07/2021.
At 56 feet, this dam is taller than 94% of dams nationwide.
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Location
| State | Colorado |
| County | Otero |
| Nearest City | La Junta |
| River/Stream | Crooked Arroyo |
| Coordinates | 37.93167, -103.65057 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 56 ft |
| Dam Height | 28 ft |
| Dam Length | 4,254 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 24,047 acre-ft |
| Max Storage | 24,047 acre-ft |
| Normal Storage | 6,998 acre-ft |
| Surface Area | 705 acres |
| Drainage Area | 90 sq mi |
| Max Discharge | 32,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | OTERO COUNTY (NICHOLS, LEX) |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 10/07/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO01837 |
| Federal ID | CO01837 |
| More Info | State Dam Safety Program |