Wilson Creek 11-A

TR-N FK LITTLE NEMAHA RIVER· Cass, Nebraska· Built 1974· Earth· 32 ft tall
Low Hazard Flood Risk Reduction Local Government

Key Takeaway

Wilson Creek 11-A is classified as low hazard in Nebraska. It was completed in 1974 and is 52 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 32 ft (taller than 73.9% in NE)
Dam Length1,110 ft
Dam TypeEarth
Max Storage1.6K acre-ft
Normal Storage264 acre-ft
Surface Area56 acres
Drainage Area4 sq mi
Max Discharge1,770 cfs
Year Completed1974 (52 years old)
NID IDNE01248

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: September 26, 2019
State Regulated: Yes
Regulatory Agency: NE DNR

Ownership

Nemaha Natural Resources District

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wilson Creek 11-A?

Wilson Creek 11-A 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 Wilson Creek 11-A?

Wilson Creek 11-A is owned by Nemaha Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wilson Creek 11-A built?

Wilson Creek 11-A was completed in 1974, making it 52 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 Wilson Creek 11-A?

Wilson Creek 11-A 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 Wilson Creek 11-A?

Wilson Creek 11-A has a dam height of 32 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 Wilson Creek 11-A last inspected?

Wilson Creek 11-A was last inspected on September 26, 2019. 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.