US Bridges

West Branch Road over WB Little Spokane River

FairPosted for load

Spokane County, Washington · 1.0 MI W of HWY 2 · Structure no. 082971000000000

Built
1915
110 years old
Condition
Fair
inspected August 2023
Type
Other
Concrete
Length
89 ft
1 main span
Daily traffic
98
2019 count
Owner
County
County Highway Agency

About this bridge

West Branch Road over WB Little Spokane River is a concrete other carrying West Branch Road over WB Little Spokane River in Spokane County, Washington. It was built in 1915, so it is 110 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 98 vehicles a day, roughly 15% of them trucks, projected to reach 141 by 2041. The structure is 89 ft (27.1 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWest Branch Road
CrossesWB Little Spokane River
Location1.0 MI W of HWY 2
RouteCounty Highway 5259
Coordinates48.00107, -117.35435
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating20.9 US tons

Structure

Structure typeOther
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length89 ft (27.1 m)
Longest span72 ft (21.9 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic98 (2019)
Projected traffic141 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was West Branch Road over WB Little Spokane River built?

It was built in 1915, making it 110 years old in 2025.

What condition is West Branch Road over WB Little Spokane River 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 August 2023.

How much traffic does West Branch Road over WB Little Spokane River carry?

About 98 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is West Branch Road over WB Little Spokane River?

The structure is 89 ft (27.1 m) long with a longest span of 72 ft (21.9 m) and a deck 22 ft wide.

Who owns West Branch Road over WB Little Spokane River?

It is owned by the County Highway Agency.