Tolton Dam

unnamed trib to Seven Mile Cr· Cass, Iowa· Built 2020· Earth· 30 ft tall
Low Hazard Recreation Private

Key Takeaway

Tolton Dam is classified as low hazard in Iowa. It was completed in 2020 and is 6 years old. Its primary use is recreation.

Physical Details

Dam Height 30 ft (taller than 48.2% in IA)
Dam Length1,360 ft
Dam TypeEarth
Max Storage74 acre-ft
Normal Storage39 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Year Completed2020 (6 years old)
NID IDIA04331

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

KLM Properties LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Tolton Dam?

Tolton 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 Tolton Dam?

Tolton Dam is owned by KLM Properties LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Tolton Dam built?

Tolton Dam was completed in 2020, making it 6 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 Tolton Dam?

Tolton Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Tolton Dam?

Tolton Dam has a dam height of 30 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.