Sierra Blanco #1 is an earth dam located in Huerfano County, Colorado, built in 1906. It carries a Low hazard potential classification.
Dam profile
NID height · 37 ft37 ft tall and 417 ft long, taller than 83% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Sierra Blanco #1
The primary purpose of Sierra Blanco #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Singing River Ranch LLC (private). It impounds the Huerfano River-tr near Gardner.
The dam stands 37 feet tall and stretches 417 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 86 acre-feet. Completed in 1906, the structure is over a century 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. The most recent inspection on record was 09/29/2015. That was over 11 years ago.
At 37 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Colorado |
| County | Huerfano |
| Nearest City | Gardner |
| River/Stream | Huerfano River-tr |
| Coordinates | 37.65501, -105.47557 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 417 ft |
| Year Completed | 1906 (120 years old) |
Storage & Hydraulics
| NID Storage | 86 acre-ft |
| Max Storage | 86 acre-ft |
| Normal Storage | 66 acre-ft |
| Surface Area | 6 acres |
| Max Discharge | 200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Singing River Ranch LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/29/2015 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02008 |
| Federal ID | CO02008 |
| More Info | State Dam Safety Program |