Connell Wastewater Lagoons

Providence Coulee - Offstream· Franklin, Washington· Built 2000· Earth·
Significant Hazard Other Local Government

Key Takeaway

Connell Wastewater Lagoons is classified as significant hazard in Washington. It was completed in 2000 and is 26 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Length2,800 ft
Dam TypeEarth
Max Storage322 acre-ft
Normal Storage231 acre-ft
Surface Area30 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed2000 (26 years old)
NID IDWA01821

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: Yes
Last Inspection: September 21, 2023
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Connell City

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Connell Wastewater Lagoons?

Connell Wastewater Lagoons is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Connell Wastewater Lagoons?

Connell Wastewater Lagoons is owned by Connell City (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Connell Wastewater Lagoons built?

Connell Wastewater Lagoons was completed in 2000, making it 26 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 Connell Wastewater Lagoons?

Connell Wastewater Lagoons serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Connell Wastewater Lagoons last inspected?

Connell Wastewater Lagoons was last inspected on September 21, 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.