I-90 over SR 906

Poor Condition57 years old17,758 vehicles/day

Location

StateWashington
CountyKittitas
Location2.1 E King Co
CarriesI-90
CrossesSR 906
Coordinates47.39669, -121.39750

Condition Ratings

Overall ConditionPoor
Deck4 (Poor)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length182.1 ft (55.5 m)
Max Span83.0 ft (25.3 m)
Deck Width154.2 ft (47 m)
Deck Area2608.5 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic17,758 (2023)
Truck Traffic21%
Lanes On Bridge8
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0008447C0000000

Nearby Bridges

I-90 over Coal Creek 0.1 mi Fair I-90 over Coal Creek 0.4 mi Poor Road over Coal Creek 0.4 mi Good SR 906 over Hyak Creek 0.5 mi Fair I-90 over Coal Creek 0.5 mi Fair I-90 over Coal CR 0.5 mi Fair Park RD Hyak Dorm over Coal Creek 0.6 mi Good I-90 over Animal Crossing 0.6 mi Good I-90 over Animal Crossing 0.6 mi Good I-90 over Gold Creek 0.7 mi Fair