Antelope Canyon Detention Dam is a dam located in Hidalgo County, New Mexico, built in 1951. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 34 ft34 ft tall and 1,812 ft long, taller than 78% 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 Antelope Canyon Detention Dam
The primary purpose of Antelope Canyon Detention Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Doi BLM (federal). It impounds the Horseshoe Wash near Franklin, Az.
The dam stands 34 feet tall and stretches 1,812 feet across, creates a reservoir covering 97 acres, has a maximum storage capacity of 676 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1951, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 05/21/2013. That was over 13 years ago.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | New Mexico |
| County | Hidalgo |
| Nearest City | Franklin, Az |
| River/Stream | Horseshoe Wash |
| Coordinates | 32.51207, -109.03392 |
Physical Characteristics
| NID Height | 34 ft |
| Dam Length | 1,812 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 676 acre-ft |
| Max Storage | 676 acre-ft |
| Normal Storage | 488 acre-ft |
| Surface Area | 97 acres |
| Drainage Area | 17 sq mi |
| Max Discharge | 4,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Doi BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/21/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NM00110 |
| Federal ID | NM00110 |
| More Info | State Dam Safety Program |