I-90 over Kachess River

Poor Condition68 years old17,108 vehicles/day

Location

StateWashington
CountyKittitas
Location14.8 E Jct SR 906
CarriesI-90
CrossesKachess River
Coordinates47.25697, -121.20311

Condition Ratings

Overall ConditionPoor
Deck3 (Serious)
Superstructure5 (Fair)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length149.9 ft (45.7 m)
Max Span58.1 ft (17.7 m)
Deck Width41.0 ft (12.5 m)
Deck Area571.2 sq m
Main Spans3
Year Built1958 (reconstructed 1976)

Traffic

Avg Daily Traffic17,108 (2023)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last Inspection224
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0005702A0000000

Nearby Bridges

I-90 Westbound over Kachess River 0.0 mi Good Sparks Road West over Kachess River 0.0 mi Good I-90 EB Temp Align over W Sparks RD 0.4 mi Good I-90 over W Sparks RD 0.4 mi Fair West Easton RD over I-90 0.8 mi Poor Railroad Street over Yakima River 1.6 mi Fair I-90 over Yakima River 1.7 mi Poor I-90 over Yakima River 1.7 mi Poor Easton Road over I-90 2.0 mi Fair I-90 EB over Tucker Creek 3.4 mi Good