Round Mountain Detention Dam 3

RAILROAD WASH· Hidalgo, New Mexico· Built 1956· Gravity·
Low Hazard Flood Risk Reduction Federal Government

Key Takeaway

Round Mountain Detention Dam 3 is classified as low hazard in New Mexico. It was completed in 1956 and is 70 years old. Its primary use is flood risk reduction.

Physical Details

Dam Length1,176 ft
Dam TypeGravity
Max Storage167 acre-ft
Normal Storage460 acre-ft
Surface Area64 acres
Drainage Area36 sq mi
Max Discharge1,918 cfs
Year Completed1956 (70 years old)
NID IDNM00119

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: No
Last Inspection: July 20, 2015
State Regulated: No

Ownership

DOI BLM

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Round Mountain Detention Dam 3?

Round Mountain Detention Dam 3 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Round Mountain Detention Dam 3?

Round Mountain Detention Dam 3 is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Round Mountain Detention Dam 3 built?

Round Mountain Detention Dam 3 was completed in 1956, making it 70 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 Round Mountain Detention Dam 3?

Round Mountain Detention Dam 3 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Round Mountain Detention Dam 3 last inspected?

Round Mountain Detention Dam 3 was last inspected on July 20, 2015. 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.