US Bridges

Bunker Creek Road over Prairie Creek

Good

Lewis County, Washington · Chehalis · Structure no. 089034000000000

Built
2018
7 years old
Condition
Good
inspected December 2022
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
422
2022 count
Owner
County
County Highway Agency

About this bridge

Bunker Creek Road over Prairie Creek is a concrete slab carrying Bunker Creek Road over Prairie Creek in Lewis County, Washington. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 422 vehicles a day, roughly 28% of them trucks, projected to reach 763 by 2042. The structure is 29 ft (8.8 m) long and 27 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesBunker Creek Road
CrossesPrairie Creek
LocationChehalis
RouteCounty Highway 24034
Coordinates46.67025, -123.14843
Functional classRural Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating68.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width27 ft (8.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic422 (2022)
Projected traffic763 by 2042
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$427,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bunker Creek Road over Prairie Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Bunker Creek Road over Prairie Creek 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 December 2022.

How much traffic does Bunker Creek Road over Prairie Creek carry?

About 422 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is Bunker Creek Road over Prairie Creek?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 27 ft wide.

Who owns Bunker Creek Road over Prairie Creek?

It is owned by the County Highway Agency.