Shaw Dam and Dikes (Union)

LITTLE, DRY, & GUSSIE CREEKS,TRIB/POWDER· Union, Oregon· Built 1955· Earth· 48 ft tall
Low Hazard Irrigation Private

Key Takeaway

Shaw Dam and Dikes (Union) is classified as low hazard in Oregon. It was completed in 1955 and is 71 years old. Its primary use is irrigation.

Physical Details

Dam Height 48 ft (taller than 83.4% in OR)
Dam Length430 ft
Dam TypeEarth
Max Storage504 acre-ft
Normal Storage504 acre-ft
Surface Area55 acres
Drainage Area2 sq mi
Max Discharge1,140 cfs
Year Completed1955 (71 years old)
Year Modified1973
NID IDOR00293

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: April 20, 2017
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

ROBERT & LINDA HAERLING

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Shaw Dam and Dikes (Union)?

Shaw Dam and Dikes (Union) 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 Shaw Dam and Dikes (Union)?

Shaw Dam and Dikes (Union) is owned by ROBERT & LINDA HAERLING (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Shaw Dam and Dikes (Union) built?

Shaw Dam and Dikes (Union) was completed in 1955, making it 71 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 Shaw Dam and Dikes (Union)?

Shaw Dam and Dikes (Union) 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 Shaw Dam and Dikes (Union)?

Shaw Dam and Dikes (Union) has a dam height of 48 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 Shaw Dam and Dikes (Union) last inspected?

Shaw Dam and Dikes (Union) was last inspected on April 20, 2017. 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.