Mt Ida Water Supply Dam
Mt Ida Water Supply Dam is an earth dam located in Montgomery County, Arkansas, built in 1991. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Mt Ida Water Supply Dam
The primary purpose of Mt Ida Water Supply Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Montgomery County Regional Water Authority (local government). It impounds the Big Cedar Creek near Mount Ida.
The dam stands 86 feet tall and stretches 767 feet across, creates a reservoir covering 85 acres, has a maximum storage capacity of 7,250 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1991, the structure is 35 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 12/12/2014. That was 11 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.
At 86 feet, this dam is taller than 97% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Arkansas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Arkansas |
| County | Montgomery |
| Nearest City | Mount Ida |
| River/Stream | Big Cedar Creek |
| Coordinates | 34.55342, -93.70286 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 86 ft |
| Dam Height | 86 ft |
| Dam Length | 767 ft |
| Year Completed | 1991 (35 years old) |
Storage & Hydraulics
| NID Storage | 7,250 acre-ft |
| Max Storage | 7,250 acre-ft |
| Normal Storage | 1,590 acre-ft |
| Surface Area | 85 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 2,973 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Montgomery County Regional Water Authority |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/12/2014 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | AR01489 |
| Federal ID | AR01489 |
| More Info | State Dam Safety Program |