US Bridges

SR 281 over I-90

Fair

Grant County, Washington · JCT I-90 · Structure no. 0007386D0000000

Built
1964
61 years old, rebuilt 1990
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
196 ft
4 main spans
Daily traffic
6,241
2023 count
Owner
State
State Highway Agency

About this bridge

SR 281 over I-90 is a prestressed concrete stringer/multi-beam or girder carrying SR 281 over I-90 in Grant County, Washington. It was built in 1964 and reconstructed in 1990, so it is 61 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 6,241 vehicles a day, roughly 17% of them trucks, projected to reach 6,226 by 2039. The structure is 196 ft (59.7 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 281
CrossesI-90
LocationJCT I-90
RouteState Highway 281
CountyGrant County
StateWashington
Coordinates47.08478, -119.86128
Functional classRural Principal Arterial - Other

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span56 ft (17.1 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,241 (2023)
Projected traffic6,226 by 2039
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 SR 281 over I-90 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1990.

What condition is SR 281 over I-90 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 September 2023.

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

About 6,241 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is SR 281 over I-90?

The structure is 196 ft (59.7 m) long with a longest span of 56 ft (17.1 m) and a deck 36 ft wide.

Who owns SR 281 over I-90?

It is owned by the State Highway Agency.