Ls Mcmaster 4592

Tr- Little Sioux River· Monona, Iowa· Built 1955· Earth· 33 ft tall
Low Hazard Grade Stabilization Local Government

Key Takeaway

Ls Mcmaster 4592 is classified as low hazard in Iowa. It was completed in 1955 and is 71 years old. Its primary use is grade stabilization.

Physical Details

Dam Height 33 ft (taller than 63.3% in IA)
Dam Length0 ft
Dam TypeEarth
Max Storage15 acre-ft
Normal Storage7 acre-ft
Surface Area1 acres
Drainage Area1 sq mi
Max Discharge0 cfs
Year Completed1955 (71 years old)
NID IDIA02767

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
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Monona Co SWCD

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Ls Mcmaster 4592?

Ls Mcmaster 4592 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 Ls Mcmaster 4592?

Ls Mcmaster 4592 is owned by Monona Co SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Ls Mcmaster 4592 built?

Ls Mcmaster 4592 was completed in 1955, making it 71 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 Ls Mcmaster 4592?

Ls Mcmaster 4592 serves the following purposes: Grade Stabilization. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Ls Mcmaster 4592?

Ls Mcmaster 4592 has a dam height of 33 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.

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.