US Bridges

Little Spokane DR over Little Spokane River

Good

Spokane County, Washington · 0.1MI W of US 395 · Structure no. 088502000000000

Built
2012
13 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
3,691
2019 count
Owner
County
County Highway Agency

About this bridge

Little Spokane DR over Little Spokane River is a prestressed concrete box beam or girders - single or spread carrying Little Spokane DR over Little Spokane River in Spokane County, Washington. It was built in 2012, so it is 13 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 3,691 vehicles a day, roughly 8% of them trucks, projected to reach 5,315 by 2041. The structure is 104 ft (31.7 m) long and 45 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLittle Spokane DR
CrossesLittle Spokane River
Location0.1MI W of US 395
RouteCounty Highway 2570
Coordinates47.78473, -117.40515
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 alignment6: Equal to present minimum criteria
Operating rating99.3 US tons
Inventory rating63.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length104 ft (31.7 m)
Longest span101 ft (30.8 m)
Deck width45 ft (13.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,691 (2019)
Projected traffic5,315 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Little Spokane DR over Little Spokane River built?

It was built in 2012, making it 13 years old in 2025.

What condition is Little Spokane DR over Little 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 October 2023.

How much traffic does Little Spokane DR over Little Spokane River carry?

About 3,691 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Little Spokane DR over Little Spokane River?

The structure is 104 ft (31.7 m) long with a longest span of 101 ft (30.8 m) and a deck 45 ft wide.

Who owns Little Spokane DR over Little Spokane River?

It is owned by the County Highway Agency.