US Bridges

I-90 over Moody RD

Good

Adams County, Washington · 2.9 E Grant CO · Structure no. 0009144B0000000

Built
1972
53 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
125 ft
1 main span
Daily traffic
6,042
2023 count
Owner
State
State Highway Agency

About this bridge

I-90 over Moody RD is a prestressed concrete stringer/multi-beam or girder carrying I-90 over Moody 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,042 vehicles a day, roughly 23% of them trucks, projected to reach 6,960 by 2039. The structure is 125 ft (38.1 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-90
CrossesMoody RD
Location2.9 E Grant CO
RouteInterstate 90
Coordinates47.08769, -118.91958
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 rating70 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length125 ft (38.1 m)
Longest span120 ft (36.6 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,042 (2023)
Projected traffic6,960 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$2.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-90 over Moody RD built?

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

What condition is I-90 over Moody RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

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

About 6,042 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I-90 over Moody RD?

The structure is 125 ft (38.1 m) long with a longest span of 120 ft (36.6 m) and a deck 41 ft wide.

Who owns I-90 over Moody RD?

It is owned by the State Highway Agency.