Grimes is an earth dam located in Montezuma County, Colorado, built in 1947. It carries a Low hazard potential classification.
Dam profile
NID height · 36 ft36 ft tall and 260 ft long, taller than 82% 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 Grimes
The primary purpose of Grimes is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Alsdurf, Donna (private). It impounds the Cash Canyon near Cortez.
The dam stands 36 feet tall and stretches 260 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 103 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1947, 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 09/23/2019.
At 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Colorado |
| County | Montezuma |
| Nearest City | Cortez |
| River/Stream | Cash Canyon |
| Coordinates | 37.42500, -108.45057 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 21 ft |
| Dam Length | 260 ft |
| Year Completed | 1947 (79 years old) |
Storage & Hydraulics
| NID Storage | 103 acre-ft |
| Max Storage | 103 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 450 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Alsdurf, Donna |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/23/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02155 |
| Federal ID | CO02155 |
| More Info | State Dam Safety Program |