Lac Tiffany Dam

TR BIG RIVER· St. Francois, Missouri· Built 1978· Earth· 34 ft tall
Low Hazard Recreation Private

Key Takeaway

Lac Tiffany Dam is classified as low hazard in Missouri. It was completed in 1978 and is 48 years old. Its primary use is recreation.

Physical Details

Dam Height 34 ft (taller than 82.3% in MO)
Dam Length550 ft
Dam TypeEarth
Max Storage70 acre-ft
Normal Storage70 acre-ft
Surface Area4 acres
Drainage Area62 sq mi
Max Discharge230 cfs
Year Completed1978 (48 years old)
NID IDMO31921

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: October 17, 2007
State Regulated: Yes
Regulatory Agency: Dam and Reservoir Safety Program

Ownership

TERRE DU LAC, INC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lac Tiffany Dam?

Lac Tiffany 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 Lac Tiffany Dam?

Lac Tiffany Dam is owned by TERRE DU LAC, INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lac Tiffany Dam built?

Lac Tiffany Dam was completed in 1978, making it 48 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 Lac Tiffany Dam?

Lac Tiffany 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 Lac Tiffany Dam?

Lac Tiffany Dam has a dam height of 34 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 Lac Tiffany Dam last inspected?

Lac Tiffany Dam was last inspected on October 17, 2007. 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.