US Bridges

I-90 over Golf Course RD

Fair

Kittitas County, Washington · 23.3 E JCT SR 906 · Structure no. 0006883D0000000

Built
1962
63 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
3 main spans
Daily traffic
16,470
2023 count
Owner
State
State Highway Agency

About this bridge

I-90 over Golf Course RD is a prestressed concrete stringer/multi-beam or girder carrying I-90 over Golf Course RD in Kittitas County, Washington. It was built in 1962, so it is 63 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 16,470 vehicles a day, roughly 23% of them trucks, projected to reach 21,279 by 2039. The structure is 104 ft (31.7 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-90
CrossesGolf Course RD
Location23.3 E JCT SR 906
RouteInterstate 90
CountyKittitas County
StateWashington
Coordinates47.19478, -121.05253
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span32 ft (9.8 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,470 (2023)
Projected traffic21,279 by 2039
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-90 over Golf Course RD built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-90 over Golf Course RD in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does I-90 over Golf Course RD carry?

About 16,470 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I-90 over Golf Course RD?

The structure is 104 ft (31.7 m) long with a longest span of 32 ft (9.8 m) and a deck 42 ft wide.

Who owns I-90 over Golf Course RD?

It is owned by the State Highway Agency.