Waubonsie Cr. Watershed Site 3-8

MC PHERSON CREEK· Mills, Iowa· Built 1989· Earth· 69 ft tall

Key Takeaway

Waubonsie Cr. Watershed Site 3-8 is classified as low hazard in Iowa. It was completed in 1989 and is 37 years old. Its primary use is fire protection.

Physical Details

Dam Height 69 ft (taller than 99.5% in IA)
Dam Length650 ft
Dam TypeEarth
Max Storage606 acre-ft
Normal Storage442 acre-ft
Surface Area18 acres
Drainage Area1 sq mi
Max Discharge0 cfs
Year Completed1989 (37 years old)
NID IDIA02457

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: July 29, 2020
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Mills County SWCD

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Waubonsie Cr. Watershed Site 3-8?

Waubonsie Cr. Watershed Site 3-8 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 Waubonsie Cr. Watershed Site 3-8?

Waubonsie Cr. Watershed Site 3-8 is owned by Mills County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Waubonsie Cr. Watershed Site 3-8 built?

Waubonsie Cr. Watershed Site 3-8 was completed in 1989, making it 37 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 Waubonsie Cr. Watershed Site 3-8?

Waubonsie Cr. Watershed Site 3-8 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Waubonsie Cr. Watershed Site 3-8?

Waubonsie Cr. Watershed Site 3-8 has a dam height of 69 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 Waubonsie Cr. Watershed Site 3-8 last inspected?

Waubonsie Cr. Watershed Site 3-8 was last inspected on July 29, 2020. 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.