Leach Dam

TR-NIOBRARA RIVER· Sheridan, Nebraska· Built 1950· Earth· 39 ft tall
Significant Hazard Flood Risk Reduction Private

Key Takeaway

Leach Dam is classified as significant hazard in Nebraska. It was completed in 1950 and is 76 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 39 ft (taller than 89.4% in NE)
Dam Length385 ft
Dam TypeEarth
Max Storage41 acre-ft
Normal Storage41 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1950 (76 years old)
NID IDNE00673

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: No
Last Inspection: May 10, 2023
State Regulated: Yes
Regulatory Agency: NE DNR

Ownership

Stephen W & Melissa A Johndreau

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Leach Dam?

Leach Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Leach Dam?

Leach Dam is owned by Stephen W & Melissa A Johndreau (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Leach Dam built?

Leach Dam was completed in 1950, making it 76 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 Leach Dam?

Leach 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.

How tall is Leach Dam?

Leach Dam has a dam height of 39 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 Leach Dam last inspected?

Leach Dam was last inspected on May 10, 2023. 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.