Poison Creek Dam

Poison Creek· Grant, Oregon· Built 1999· Gravity·
Low Hazard Fish And Wildlife Pond Federal Government

Key Takeaway

Poison Creek Dam is classified as low hazard in Oregon. It was completed in 1999 and is 27 years old. Its primary use is fish and wildlife pond.

Physical Details

Dam Length290 ft
Dam TypeGravity
Max Storage187 acre-ft
Normal Storage112 acre-ft
Surface Area16 acres
Drainage Area6 sq mi
Max Discharge7,923 cfs
Year Completed1999 (27 years old)
NID IDOR03808

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: September 25, 2019
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

DOI BLM

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Poison Creek Dam?

Poison Creek Dam 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 Poison Creek Dam?

Poison Creek Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Poison Creek Dam built?

Poison Creek Dam was completed in 1999, making it 27 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 Poison Creek Dam?

Poison Creek Dam serves the following purposes: Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Poison Creek Dam last inspected?

Poison Creek Dam was last inspected on September 25, 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.