Flood Control Basin No. 1

DRY CREEK· Larimer, Colorado· Built 2006· Earth· 20 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

Flood Control Basin No. 1 is classified as high hazard in Colorado. It was completed in 2006 and is 20 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 20 ft (taller than 36.1% in CO)
Dam Length2,100 ft
Dam TypeEarth
Max Storage653 acre-ft
Normal Storage0 acre-ft
Surface Area1 acres
Drainage Area57 sq mi
Max Discharge14,395 cfs
Year Completed2006 (20 years old)
NID IDCO02905

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: August 9, 2022
State Regulated: Yes
Regulatory Agency: DWR

Ownership

CITY OF FORT COLLINS (GROVES, DOUG)

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Flood Control Basin No. 1?

Flood Control Basin No. 1 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 Flood Control Basin No. 1?

Flood Control Basin No. 1 is owned by CITY OF FORT COLLINS (GROVES, DOUG) (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Flood Control Basin No. 1 built?

Flood Control Basin No. 1 was completed in 2006, making it 20 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 Flood Control Basin No. 1?

Flood Control Basin No. 1 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.

How tall is Flood Control Basin No. 1?

Flood Control Basin No. 1 has a dam height of 20 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 Flood Control Basin No. 1 last inspected?

Flood Control Basin No. 1 was last inspected on August 9, 2022. 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.