US Bridges

SR 290 over Spokane River

Good

Spokane County, Washington · 0.2 E JCT SR 27 · Structure no. 0008135A0000000

Built
1967
58 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
470 ft
3 main spans
Daily traffic
11,294
2023 count
Owner
State
State Highway Agency

About this bridge

SR 290 over Spokane River is a concrete continuous box beam or girders - multiple carrying SR 290 over Spokane River in Spokane County, Washington. It was built in 1967, so it is 58 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 11,294 vehicles a day, roughly 7% of them trucks, projected to reach 14,224 by 2039. The structure is 470 ft (143.3 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 290
CrossesSpokane River
Location0.2 E JCT SR 27
RouteState Highway 290
Coordinates47.69122, -117.23558
Functional classUrban Other Principal Arterial

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating31 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20 + Mod
Structure length470 ft (143.3 m)
Longest span160 ft (48.8 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,294 (2023)
Projected traffic14,224 by 2039
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$8.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 290 over Spokane River built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR 290 over Spokane River 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 SR 290 over Spokane River carry?

About 11,294 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 290 over Spokane River?

The structure is 470 ft (143.3 m) long with a longest span of 160 ft (48.8 m) and a deck 36 ft wide.

Who owns SR 290 over Spokane River?

It is owned by the State Highway Agency.