Dam 20-9-4w

TR-W FK BIG BLUE RIVER· York, Nebraska· Built 1994· Earth· 27 ft tall
Low Hazard Recreation Private

Key Takeaway

Dam 20-9-4w is classified as low hazard in Nebraska. It was completed in 1994 and is 32 years old. Its primary use is recreation.

Physical Details

Dam Height 27 ft (taller than 55% in NE)
Dam Length228 ft
Dam TypeEarth
Max Storage42 acre-ft
Normal Storage17 acre-ft
Surface Area4 acres
Drainage Area1 sq mi
Max Discharge557 cfs
Year Completed1994 (32 years old)
NID IDNE02391

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

Teri Schelkopf

Private

Nearby Dams

Dam 22-9-4

York, NE

Low Hazard 31 ft

Friesen Dam 1673

Hamilton, NE

Low Hazard 32 ft

Bixby Dam

Fillmore, NE

Low Hazard 29 ft

Thieszen Dam

Hamilton, NE

Low Hazard 27 ft

Bergen Dam

Hamilton, NE

Low Hazard 26 ft

Griess Lagoon Dam

Clay, NE

Low Hazard 24 ft

Preheim Lagoon Dam

Hamilton, NE

Low Hazard 20 ft

Stuckey Dam

Fillmore, NE

Low Hazard 13 ft

Frequently Asked Questions

What is the hazard classification of Dam 20-9-4w?

Dam 20-9-4w 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 20-9-4w?

Dam 20-9-4w is owned by Teri Schelkopf (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dam 20-9-4w built?

Dam 20-9-4w was completed in 1994, making it 32 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 20-9-4w?

Dam 20-9-4w serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Dam 20-9-4w?

Dam 20-9-4w has a dam height of 27 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 20-9-4w last inspected?

Dam 20-9-4w 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.