Mt Ida Water Supply Dam

BIG CEDAR CREEK· Montgomery, Arkansas· Built 1991· Earth· 86 ft tall
High Hazard Flood Risk Reduction Water Supply Local Government

Key Takeaway

Mt Ida Water Supply Dam is classified as high hazard in Arkansas. It was completed in 1991 and is 35 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 86 ft (taller than 95.6% in AR)
Dam Length767 ft
Dam TypeEarth
Max Storage7.3K acre-ft
Normal Storage1.6K acre-ft
Surface Area85 acres
Drainage Area6 sq mi
Max Discharge2,973 cfs
Year Completed1991 (35 years old)
NID IDAR01489

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: December 12, 2014
State Regulated: Yes
Regulatory Agency: ANRC

Ownership

MONTGOMERY COUNTY REGIONAL WATER AUTHORITY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Mt Ida Water Supply Dam?

Mt Ida Water Supply Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Mt Ida Water Supply Dam?

Mt Ida Water Supply Dam is owned by MONTGOMERY COUNTY REGIONAL WATER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Mt Ida Water Supply Dam built?

Mt Ida Water Supply Dam was completed in 1991, making it 35 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Mt Ida Water Supply Dam?

Mt Ida Water Supply Dam serves the following purposes: Flood Risk Reduction, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Mt Ida Water Supply Dam?

Mt Ida Water Supply Dam has a dam height of 86 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Mt Ida Water Supply Dam last inspected?

Mt Ida Water Supply Dam was last inspected on December 12, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.