Dam 22-9-4

TR-W FK BIG BLUE RIVER· York, Nebraska· Built 1984· Earth· 31 ft tall
Low Hazard Irrigation Local Government

Key Takeaway

Dam 22-9-4 is classified as low hazard in Nebraska. It was completed in 1984 and is 42 years old. Its primary use is irrigation.

Physical Details

Dam Height 31 ft (taller than 70.5% in NE)
Dam Length385 ft
Dam TypeEarth
Max Storage230 acre-ft
Normal Storage44 acre-ft
Surface Area10 acres
Drainage Area3 sq mi
Max Discharge620 cfs
Year Completed1984 (42 years old)
NID IDNE02156

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: June 28, 2021
State Regulated: Yes
Regulatory Agency: NE DNR

Ownership

Upper Big Blue Natural Resources District

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Dam 22-9-4?

Dam 22-9-4 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 Dam 22-9-4?

Dam 22-9-4 is owned by Upper Big Blue Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dam 22-9-4 built?

Dam 22-9-4 was completed in 1984, making it 42 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 Dam 22-9-4?

Dam 22-9-4 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 Dam 22-9-4?

Dam 22-9-4 has a dam height of 31 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 Dam 22-9-4 last inspected?

Dam 22-9-4 was last inspected on June 28, 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.