St. Thomas More Silt Dam

TR- LAKE PANORAMA· Guthrie, Iowa· Built 1995· Earth· 35 ft tall
Low Hazard Debris Control Private

Key Takeaway

St. Thomas More Silt Dam is classified as low hazard in Iowa. It was completed in 1995 and is 31 years old. Its primary use is debris control.

Physical Details

Dam Height 35 ft (taller than 70.9% in IA)
Dam Length305 ft
Dam TypeEarth
Max Storage110 acre-ft
Normal Storage51 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
Max Discharge0 cfs
Year Completed1995 (31 years old)
NID IDIA03127

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

Lake Panorama Recreation Association

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of St. Thomas More Silt Dam?

St. Thomas More Silt 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 St. Thomas More Silt Dam?

St. Thomas More Silt Dam is owned by Lake Panorama Recreation Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was St. Thomas More Silt Dam built?

St. Thomas More Silt Dam was completed in 1995, making it 31 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 St. Thomas More Silt Dam?

St. Thomas More Silt Dam serves the following purposes: Debris Control. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is St. Thomas More Silt Dam?

St. Thomas More Silt Dam has a dam height of 35 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.