Grassy Trail

WHITMORE CANYON CREEK· Carbon, Utah· Built 1952· Earth·
High Hazard Water Supply Private

Key Takeaway

Grassy Trail is classified as high hazard in Utah. It was completed in 1952 and is 74 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Length600 ft
Dam TypeEarth
Max Storage1.2K acre-ft
Normal Storage916 acre-ft
Drainage Area19 sq mi
Year Completed1952 (74 years old)
NID IDUT00126

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: June 30, 2023
State Regulated: Yes
Regulatory Agency: Utah Division of Water Rights

Ownership

EAST CARBON CITY

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Grassy Trail?

Grassy Trail is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Grassy Trail?

Grassy Trail is owned by EAST CARBON CITY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Grassy Trail built?

Grassy Trail was completed in 1952, making it 74 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 Grassy Trail?

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

When was Grassy Trail last inspected?

Grassy Trail was last inspected on June 30, 2023. 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.