Gillette-Schoning-Ammerman Dam

Franklin, Iowa· Built 2011· Earth· 13 ft tall
Low Hazard Private

Key Takeaway

Gillette-Schoning-Ammerman Dam is classified as low hazard in Iowa. It was completed in 2011 and is 15 years old.

Physical Details

Dam Height 13 ft (taller than 3.8% in IA)
Dam TypeEarth
Max Storage190 acre-ft
Normal Storage30 acre-ft
Surface Area14 acres
Drainage Area3 sq mi
Year Completed2011 (15 years old)
NID IDIA04232

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

Dean Gillette

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Gillette-Schoning-Ammerman Dam?

Gillette-Schoning-Ammerman 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 Gillette-Schoning-Ammerman Dam?

Gillette-Schoning-Ammerman Dam is owned by Dean Gillette (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Gillette-Schoning-Ammerman Dam built?

Gillette-Schoning-Ammerman Dam was completed in 2011, making it 15 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

How tall is Gillette-Schoning-Ammerman Dam?

Gillette-Schoning-Ammerman Dam has a dam height of 13 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.