Little River Watershed Site 65-3

TR-LITTLE RIVER· Decatur, Iowa· Built 1980· Earth· 22 ft tall
Significant Hazard Flood Risk Reduction Local Government

Key Takeaway

Little River Watershed Site 65-3 is classified as significant hazard in Iowa. It was completed in 1980 and is 46 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 22 ft (taller than 10.6% in IA)
Dam Length450 ft
Dam TypeEarth
Max Storage116 acre-ft
Normal Storage29 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1980 (46 years old)
NID IDIA02128

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: September 3, 2015
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Decatur County SWCD

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Little River Watershed Site 65-3?

Little River Watershed Site 65-3 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Little River Watershed Site 65-3?

Little River Watershed Site 65-3 is owned by Decatur County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Little River Watershed Site 65-3 built?

Little River Watershed Site 65-3 was completed in 1980, making it 46 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 Little River Watershed Site 65-3?

Little River Watershed Site 65-3 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Little River Watershed Site 65-3?

Little River Watershed Site 65-3 has a dam height of 22 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 Little River Watershed Site 65-3 last inspected?

Little River Watershed Site 65-3 was last inspected on September 3, 2015. 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.