A-27
A-27 is an earth dam located in Washington County, Colorado, built in 1949. It carries a Low hazard potential classification.
About A-27
The primary purpose of A-27 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Victor Winter (private). It impounds the Twenty Two Slough near Merino.
The dam stands 14 feet tall and stretches 1,300 feet across, creates a reservoir covering 46 acres, and has a maximum storage capacity of 557 acre-feet. Completed in 1949, the structure is well-established, with more than 75 years of service.
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 07/23/1980. That was over 45 years ago.
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Location
| State | Colorado |
| County | Washington |
| Nearest City | Merino |
| River/Stream | Twenty Two Slough |
| Coordinates | 40.33834, -103.27223 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 1,300 ft |
| Year Completed | 1949 (77 years old) |
Storage & Hydraulics
| NID Storage | 557 acre-ft |
| Max Storage | 557 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 46 acres |
| Max Discharge | 62,638 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | VICTOR WINTER |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/23/1980 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02267 |
| Federal ID | CO02267 |
| More Info | State Dam Safety Program |