US Bridges

Elk-Chattaroy Road over Little Spokane River

Fair

Spokane County, Washington · 0.1 N Bridges Road · Structure no. 082270000000000

Built
1962
63 years old, rebuilt 2019
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
944
2019 count
Owner
County
County Highway Agency

About this bridge

Elk-Chattaroy Road over Little Spokane River is a concrete continuous slab carrying Elk-Chattaroy Road over Little Spokane River in Spokane County, Washington. It was built in 1962 and reconstructed in 2019, so it is 63 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 944 vehicles a day, roughly 19% of them trucks, projected to reach 1,359 by 2041. The structure is 77 ft (23.5 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesElk-Chattaroy Road
CrossesLittle Spokane River
Location0.1 N Bridges Road
RouteCounty Highway 1128
CountySpokane County
StateWashington
Coordinates48.01665, -117.27702
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating40.3 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length77 ft (23.5 m)
Longest span45 ft (13.7 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic944 (2019)
Projected traffic1,359 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Elk-Chattaroy Road over Little Spokane River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2019.

What condition is Elk-Chattaroy Road over 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 Elk-Chattaroy Road over Little Spokane River carry?

About 944 vehicles per day (2019 count), of which roughly 19% are trucks.

How long is Elk-Chattaroy Road over Little Spokane River?

The structure is 77 ft (23.5 m) long with a longest span of 45 ft (13.7 m) and a deck 32 ft wide.

Who owns Elk-Chattaroy Road over Little Spokane River?

It is owned by the County Highway Agency.