US Bridges

Dodson Road over I-90

Fair

Grant County, Washington · 12.8 E JCT SR 281 · Structure no. 0014022A0000000

Built
1993
32 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
208 ft
2 main spans
Daily traffic
1,401
2020 count
Owner
State
State Highway Agency

About this bridge

Dodson Road over I-90 is a prestressed concrete continuous stringer/multi-beam or girder carrying Dodson Road over I-90 in Grant County, Washington. It was built in 1993, so it is 32 years old, younger 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 1,401 vehicles a day, roughly 5% of them trucks, projected to reach 1,887 by 2040. The structure is 208 ft (63.3 m) long and 37 ft wide.

Location

Open in Google Maps
CarriesDodson Road
CrossesI-90
Location12.8 E JCT SR 281
RouteCounty Highway 0
CountyGrant County
StateWashington
Coordinates47.10369, -119.55755
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length208 ft (63.3 m)
Longest span99 ft (30.2 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,401 (2020)
Projected traffic1,887 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.6 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dodson Road over I-90 built?

It was built in 1993, making it 32 years old in 2025.

What condition is Dodson Road 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 Dodson Road over I-90 carry?

About 1,401 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Dodson Road over I-90?

The structure is 208 ft (63.3 m) long with a longest span of 99 ft (30.2 m) and a deck 37 ft wide.

Who owns Dodson Road over I-90?

It is owned by the State Highway Agency.