SR 18 over Kent-black Diamond RD SE

Fair Condition67 years old26,257 vehicles/day

Location

StateWashington
CountyKing
Location6.2 E Jct SR 164
CarriesSR 18
CrossesKent-black Diamond RD SE
Coordinates47.34789, -122.13921

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length202.1 ft (61.6 m)
Max Span87.9 ft (26.8 m)
Deck Width35.1 ft (10.7 m)
Deck Area659.1 sq m
Main Spans3
Year Built1959 (reconstructed 1993)

Traffic

Avg Daily Traffic26,257 (2023)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection324
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0006068C0000000

Nearby Bridges

SR 18 over Kent-black Diamond RD 0.0 mi Good Kent-blk Diam RD over Big Soos Creek 0.4 mi Fair SR 18 over Soos CR 0.6 mi Good SR 18 over Soos Creek 0.6 mi Good Kent-blk Diamond over Bnsf Rr 0.6 mi Poor SR 516 over Wetlands 0.8 mi Good SR 516 over Big Soos Creek 0.8 mi Good Covington Way SE over SR 18 0.9 mi Good Covington-swyr RD over Jenkins Creek 1.1 mi Fair SR 18 over SR 516 1.1 mi Good