I-405 over Cedar River

Fair Condition33 years old85,117 vehicles/day

Location

StateWashington
CountyKing
Location0.9 N Jct SR 515
CarriesI-405
CrossesCedar River
Coordinates47.48017, -122.20031

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length527.9 ft (160.9 m)
Max Span195.9 ft (59.7 m)
Deck Width82.0 ft (25 m)
Deck Area4022.5 sq m
Main Spans4
Year Built1993

Traffic

Avg Daily Traffic85,117 (2023)
Truck Traffic6%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0014052A0000000

Nearby Bridges

I-405 over Cedar River 0.0 mi Good Renton AVE S over SR 405 0.0 mi Good Houser Way over Cedar River 0.1 mi Fair Cedar AVE S over I-405 0.1 mi Good Bronson Way N over Cedar R 0.2 mi Fair I-405 over SR 169 0.3 mi Fair Wells Avenue over Cedar River 0.3 mi Fair Williams AVE over Cedar River 0.4 mi Fair I-405 over NE 3rd ST 0.5 mi Fair SB I-405 Ramp over Benson Road 0.5 mi Good