Eastdale Creek Detention No.1

HOLMAN DRAW· Natrona, Wyoming· Built 2008· Earth· 24 ft tall
Low Hazard Flood Risk Reduction Local Government

Key Takeaway

Eastdale Creek Detention No.1 is classified as low hazard in Wyoming. It was completed in 2008 and is 18 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 24 ft (taller than 35.6% in WY)
Dam Length182 ft
Dam TypeEarth
Max Storage57 acre-ft
Normal Storage24 acre-ft
Surface Area5 acres
Drainage Area2 sq mi
Max Discharge437 cfs
Year Completed2008 (18 years old)
NID IDWY02459

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: April 14, 2022
State Regulated: Yes
Regulatory Agency: SEO

Ownership

CITY OF CASPER

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Eastdale Creek Detention No.1?

Eastdale Creek Detention No.1 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 Eastdale Creek Detention No.1?

Eastdale Creek Detention No.1 is owned by CITY OF CASPER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Eastdale Creek Detention No.1 built?

Eastdale Creek Detention No.1 was completed in 2008, making it 18 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 Eastdale Creek Detention No.1?

Eastdale Creek Detention 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 Eastdale Creek Detention No.1?

Eastdale Creek Detention No.1 has a dam height of 24 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 Eastdale Creek Detention No.1 last inspected?

Eastdale Creek Detention No.1 was last inspected on April 14, 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.