South Fork 3-4

TR-NEGRO BRANCH CREEK· Pawnee, Nebraska· Built 1981· Earth· 27 ft tall
Low Hazard Other Flood Risk Reduction Local Government

Key Takeaway

South Fork 3-4 is classified as low hazard in Nebraska. It was completed in 1981 and is 45 years old. Its primary use is other.

Physical Details

Dam Height 27 ft (taller than 55% in NE)
Dam Length567 ft
Dam TypeEarth
Max Storage30 acre-ft
Normal Storage11 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Max Discharge159 cfs
Year Completed1981 (45 years old)
NID IDNE01806

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 26, 2022
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 South Fork 3-4?

South Fork 3-4 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 South Fork 3-4?

South Fork 3-4 is owned by Nemaha Natural Resources District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was South Fork 3-4 built?

South Fork 3-4 was completed in 1981, making it 45 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 South Fork 3-4?

South Fork 3-4 serves the following purposes: Other, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is South Fork 3-4?

South Fork 3-4 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 South Fork 3-4 last inspected?

South Fork 3-4 was last inspected on April 26, 2022. 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.