204th Street Stormwater Detention Basin

Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateWashington
CountyKing
Nearest CityDes Moines
River/StreamPatterson Creek - Of
Coordinates47.41972, -122.30375

Physical Characteristics

Dam TypeEarth
NID Height9 ft
Dam Length1,100 ft
Year Completed2001 (25 years old)

Storage & Hydraulics

NID Storage17 acre-ft
Max Storage17 acre-ft
Normal Storage12 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Max Discharge450 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerSeaTac Public Works
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection06/17/2019
Emergency Action PlanYes

Identifiers

NID IDWA01819
Federal IDWA01819
More InfoState Dam Safety Program

Nearby Dams

Des Moines Ck Reg Det Facility East Berm 0.4 mi High Des Moines Creek Stormwater Detention Da 0.5 mi High Des Moines Ck Reg Det Pond West Berm 0.6 mi High Seatac Airport Se Pond 1.0 mi Significant Seattle Port Lagoon No 3 1.0 mi High Muth Stormwater Pond 1.4 mi High Tukwila South Project South Pond 1.6 mi Low Seatac Airport Pond G 2.9 mi High Seatac Airport Pond M 3.3 mi High Miller Creek Regional Detention Facility 3.4 mi Significant