Port of Moses Lake Lagoon

Crab Creek - offstream· Grant, Washington· Built 1999· Earth·
Low Hazard Other Local Government

Key Takeaway

Port of Moses Lake Lagoon is classified as low hazard in Washington. It was completed in 1999 and is 27 years old. Its primary use is other.

Physical Details

Dam Length600 ft
Dam TypeEarth
Max Storage34 acre-ft
Normal Storage25 acre-ft
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1999 (27 years old)
NID IDWA01807

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
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Port of Moses Lake

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Port of Moses Lake Lagoon?

Port of Moses Lake Lagoon 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 Port of Moses Lake Lagoon?

Port of Moses Lake Lagoon is owned by Port of Moses Lake (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Port of Moses Lake Lagoon built?

Port of Moses Lake Lagoon 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 Port of Moses Lake Lagoon?

Port of Moses Lake Lagoon serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

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.