Ward Ball

WARD BALL DRAW· Sublette, Wyoming· Built 1965· Earth· 22 ft tall
Low Hazard Irrigation Private

Key Takeaway

Ward Ball is classified as low hazard in Wyoming. It was completed in 1965 and is 61 years old. Its primary use is irrigation.

Physical Details

Dam Height 22 ft (taller than 28.8% in WY)
Dam Length950 ft
Dam TypeEarth
Max Storage528 acre-ft
Normal Storage315 acre-ft
Surface Area53 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1965 (61 years old)
NID IDWY01221

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 1, 2019
State Regulated: Yes
Regulatory Agency: SEO

Ownership

BOULDER IRRIGATION DISTRICT

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Ward Ball?

Ward Ball 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 Ward Ball?

Ward Ball is owned by BOULDER IRRIGATION DISTRICT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Ward Ball built?

Ward Ball was completed in 1965, making it 61 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 Ward Ball?

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

How tall is Ward Ball?

Ward Ball has a dam height of 22 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 Ward Ball last inspected?

Ward Ball was last inspected on October 1, 2019. 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.