Riddle

MIDDLE BLACK CREEK· St. Clair, Alabama· Built 1951· Earth·
Low Hazard Recreation Private

Key Takeaway

Riddle is classified as low hazard in Alabama. It was completed in 1951 and is 75 years old. Its primary use is recreation.

Physical Details

Dam Length150 ft
Dam TypeEarth
Max Storage50 acre-ft
Normal Storage38 acre-ft
Max Discharge200 cfs
Year Completed1951 (75 years old)
NID IDAL01050

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: No

Ownership

MRS JUNE RIDDLE

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Riddle?

Riddle 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 Riddle?

Riddle is owned by MRS JUNE RIDDLE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Riddle built?

Riddle was completed in 1951, making it 75 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 Riddle?

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

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.