I-90 over Umptanum RD

Good Condition59 years old15,658 vehicles/day

Location

StateWashington
CountyKittitas
Location2.2 E Jct US 97
CarriesI-90
CrossesUmptanum RD
Coordinates46.98094, -120.56064

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length162.1 ft (49.4 m)
Max Span56.1 ft (17.1 m)
Deck Width41.3 ft (12.6 m)
Deck Area622.4 sq m
Main Spans3
Year Built1967

Traffic

Avg Daily Traffic15,658 (2023)
Truck Traffic23%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last Inspection823
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0008200D0000000

Nearby Bridges

I-90 over Umptanum RD 0.0 mi Poor Umptanum Road over Anderson Slough 0.2 mi Fair Umptanum Road over Yakima River 0.4 mi Fair Umptanum Road over Wilson Creek 0.4 mi Fair Anderson RD over Mercer Creek 0.4 mi Good I-90 over Wilson Creek 0.8 mi Poor I-90 over Wilson Creek 0.8 mi Fair Railroad Avenue over Mercer Creek 0.8 mi Fair I-90 over Reeser Creek 0.9 mi Fair I-90 over Reeser Creek 0.9 mi Fair