US Bridges

SR 290 over Spokane River

Good

Spokane County, Washington · 0.2 E JCT SR 27 · Structure no. 0013145A0000000

Built
1987
38 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed 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 prestressed concrete continuous box beam or girders - multiple carrying SR 290 over Spokane River in Spokane County, Washington. It was built in 1987, so it is 38 years old, younger 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 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 290
CrossesSpokane River
Location0.2 E JCT SR 27
RouteState Highway 290
CountySpokane County
StateWashington
Coordinates47.69136, -117.23575
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 above top of footing
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 rating98 US tons
Inventory rating58 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length470 ft (143.3 m)
Longest span160 ft (48.8 m)
Deck width44 ft (13.4 m)
Roadway width32 ft (9.8 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 and pedestrian
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$7.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 290 over Spokane River built?

It was built in 1987, making it 38 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 44 ft wide.

Who owns SR 290 over Spokane River?

It is owned by the State Highway Agency.