Cottonmill Lake Sediment Disposal Dam

TR-PLATTE RIVER· Buffalo, Nebraska· Built 1997· Earth· 41 ft tall
Low Hazard Other Local Government

Key Takeaway

Cottonmill Lake Sediment Disposal Dam is classified as low hazard in Nebraska. It was completed in 1997 and is 29 years old. Its primary use is other.

Physical Details

Dam Height 41 ft (taller than 91.4% in NE)
Dam Length515 ft
Dam TypeEarth
Max Storage52 acre-ft
Normal Storage6 acre-ft
Surface Area1 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1997 (29 years old)
NID IDNE03174

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 11, 2019
State Regulated: Yes
Regulatory Agency: NE DNR

Ownership

City of Kearney

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Cottonmill Lake Sediment Disposal Dam?

Cottonmill Lake Sediment Disposal 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 Cottonmill Lake Sediment Disposal Dam?

Cottonmill Lake Sediment Disposal Dam is owned by City of Kearney (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Cottonmill Lake Sediment Disposal Dam built?

Cottonmill Lake Sediment Disposal Dam was completed in 1997, making it 29 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 Cottonmill Lake Sediment Disposal Dam?

Cottonmill Lake Sediment Disposal Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Cottonmill Lake Sediment Disposal Dam?

Cottonmill Lake Sediment Disposal Dam has a dam height of 41 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 Cottonmill Lake Sediment Disposal Dam last inspected?

Cottonmill Lake Sediment Disposal Dam was last inspected on June 11, 2019. 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.