Walla Walla Effluent Storage Lagoon

Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyWalla Walla
Nearest CityWalla Walla
Coordinates46.07635, -118.38132

Physical Characteristics

Dam TypeEarth
NID Height19 ft
Dam Length1,800 ft
Year Completed2008 (18 years old)

Storage & Hydraulics

NID Storage97 acre-ft
Max Storage97 acre-ft
Normal Storage78 acre-ft
Surface Area5 acres

Ownership & Safety

PurposeOther
OwnerWalla Walla City
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection10/17/2024
Emergency Action PlanYes

Identifiers

NID IDWA00708
Federal IDWA00708
More InfoState Dam Safety Program

Nearby Dams

Mill Creek Storage Dam 5.7 mi High Mill Creek Storage Dam - Diversion Dam 6.1 mi Significant Milton-freewater Lagoon N-3 10.0 mi Low