US Bridges

I-90 over SR 281 Spur

Fair

Grant County, Washington · 14.0 E JCT SR 26 · Structure no. 0006858A0000000

Built
1962
63 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
154 ft
3 main spans
Daily traffic
6,917
2023 count
Owner
State
State Highway Agency

About this bridge

I-90 over SR 281 Spur is a concrete continuous slab carrying I-90 over SR 281 Spur in Grant 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 5 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 6,917 vehicles a day, roughly 28% of them trucks, projected to reach 8,228 by 2039. The structure is 154 ft (46.9 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-90
CrossesSR 281 Spur
Location14.0 E JCT SR 26
RouteInterstate 90
CountyGrant County
StateWashington
Coordinates47.10247, -119.82961
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length154 ft (46.9 m)
Longest span60 ft (18.3 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,917 (2023)
Projected traffic8,228 by 2039
Trucks28%
Lanes on structure3
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$3.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-90 over SR 281 Spur built?

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

What condition is I-90 over SR 281 Spur 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 July 2024.

How much traffic does I-90 over SR 281 Spur carry?

About 6,917 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is I-90 over SR 281 Spur?

The structure is 154 ft (46.9 m) long with a longest span of 60 ft (18.3 m) and a deck 46 ft wide.

Who owns I-90 over SR 281 Spur?

It is owned by the State Highway Agency.