Semroska Dam

TR-HAT CREEK· Sioux, Nebraska· Built 1951· Earth· 16 ft tall
Low Hazard Irrigation Private

Key Takeaway

Semroska Dam is classified as low hazard in Nebraska. It was completed in 1951 and is 75 years old. Its primary use is irrigation.

Physical Details

Dam Height 16 ft (taller than 13.6% in NE)
Dam Length690 ft
Dam TypeEarth
Max Storage98 acre-ft
Normal Storage44 acre-ft
Surface Area11 acres
Drainage Area0 sq mi
Max Discharge1,150 cfs
Year Completed1951 (75 years old)
NID IDNE01108

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 29, 2021
State Regulated: Yes
Regulatory Agency: NE DNR

Ownership

Ray Semroska

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Semroska Dam?

Semroska 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 Semroska Dam?

Semroska Dam is owned by Ray Semroska (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Semroska Dam built?

Semroska Dam was completed in 1951, making it 75 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 Semroska Dam?

Semroska Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Semroska Dam?

Semroska Dam has a dam height of 16 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 Semroska Dam last inspected?

Semroska Dam was last inspected on April 29, 2021. 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.