Cell 4 A and B

San Juan, Utah· Earth· 30 ft tall
Low Hazard Tailings Private

Key Takeaway

Cell 4 A and B is classified as low hazard in Utah. Its primary use is tailings.

Physical Details

Dam Height 30 ft (taller than 44.1% in UT)
Dam Length1,400 ft
Dam TypeEarth
Max Storage1.2K acre-ft
NID IDUT53582

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: Yes
State Regulated: Yes
Regulatory Agency: Utah Division of Water Rights

Ownership

ENERGY FUELS NUCLEAR INC.

Private

Frequently Asked Questions

What is the hazard classification of Cell 4 A and B?

Cell 4 A and B 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 Cell 4 A and B?

Cell 4 A and B is owned by ENERGY FUELS NUCLEAR INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Cell 4 A and B?

Cell 4 A and B serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Cell 4 A and B?

Cell 4 A and B 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.