US Bridges

I-90 over Deal RD

Fair

Adams County, Washington · 5.0 E Grant CO · Structure no. 0009144G0000000

Built
1972
53 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
113 ft
1 main span
Daily traffic
5,952
2023 count
Owner
State
State Highway Agency

About this bridge

I-90 over Deal RD is a prestressed concrete stringer/multi-beam or girder carrying I-90 over Deal RD in Adams County, Washington. It was built in 1972, so it is 53 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 5,952 vehicles a day, roughly 23% of them trucks, projected to reach 6,892 by 2039. The structure is 113 ft (34.4 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-90
CrossesDeal RD
Location5.0 E Grant CO
RouteInterstate 90
CountyAdams County
StateWashington
Coordinates47.08731, -118.87519
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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
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 rating96 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length113 ft (34.4 m)
Longest span108 ft (32.9 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,952 (2023)
Projected traffic6,892 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$2.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-90 over Deal RD built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-90 over Deal 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 September 2023.

How much traffic does I-90 over Deal RD carry?

About 5,952 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I-90 over Deal RD?

The structure is 113 ft (34.4 m) long with a longest span of 108 ft (32.9 m) and a deck 41 ft wide.

Who owns I-90 over Deal RD?

It is owned by the State Highway Agency.