Oso Diversion Dam is a concrete dam located in Archuleta County, Colorado, built in 1970. It carries a Low hazard potential classification.
Dam profile
NID height · 51 ft51 ft tall and 790 ft long, taller than 93% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Oso Diversion Dam
The primary purpose of Oso Diversion Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bureau of Reclamation (federal). It impounds the Navajo River.
The dam stands 51 feet tall and stretches 790 feet across, and has a maximum storage capacity of 47 acre-feet. Completed in 1970, 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.
At 51 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Colorado |
| County | Archuleta |
| River/Stream | Navajo River |
| Coordinates | 37.03060, -106.73565 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 51 ft |
| Dam Length | 790 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 47 acre-ft |
| Max Storage | 47 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Bureau of Reclamation |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO03115 |
| Federal ID | CO03115 |
| More Info | State Dam Safety Program |