Poso Detention Dam

TRIBUTARY TO CONEJOS RIVER· Conejos, Colorado· Built 1963· Gravity·
Low Hazard Flood Risk Reduction Federal Government

Key Takeaway

Poso Detention Dam is classified as low hazard in Colorado. It was completed in 1963 and is 63 years old. Its primary use is flood risk reduction.

Physical Details

Dam Length1,171 ft
Dam TypeGravity
Max Storage264 acre-ft
Normal Storage47 acre-ft
Surface Area307 acres
Year Completed1963 (63 years old)
NID IDCO01265

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: June 3, 2014
State Regulated: Yes
Regulatory Agency: DWR

Ownership

DOI BLM

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Poso Detention Dam?

Poso Detention Dam 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 Poso Detention Dam?

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

When was Poso Detention Dam built?

Poso Detention Dam was completed in 1963, making it 63 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 Poso Detention Dam?

Poso Detention Dam 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 Poso Detention Dam last inspected?

Poso Detention Dam was last inspected on June 3, 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.