Ponderay Newsprint Mill Settling Lagoon

Ponderay Newsprint Mill Settling Lagoon is an earth dam located in Pend Oreille County, Washington, built in 1989. It carries a Low hazard potential classification.

About Ponderay Newsprint Mill Settling Lagoon

Ponderay Newsprint Mill Settling Lagoon is a dam in Pend Oreille, Washington. The dam is owned by Ponderay Real Estate Llc (private). It impounds the Pend Oreille River-offstream near Usk.

The dam stands 24 feet tall and stretches 2,250 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 105 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1989, the structure is 37 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateWashington
CountyPend Oreille
Nearest CityUsk
River/StreamPend Oreille River-offstream
Coordinates48.29981, -117.27515

Physical Characteristics

Dam TypeEarth
NID Height24 ft
Dam Length2,250 ft
Year Completed1989 (37 years old)

Storage & Hydraulics

NID Storage105 acre-ft
Max Storage105 acre-ft
Normal Storage82 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge1 cfs

Ownership & Safety

PurposeOther
OwnerPonderay Real Estate LLC
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDWA00598
Federal IDWA00598
More InfoState Dam Safety Program

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