US Bridges

Bunker Road over Bunker Creek

Good

Lewis County, Washington · 10.0 NW Adna · Structure no. 082171000000000

Built
1955
70 years old
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Concrete
Length
30 ft
1 main span
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

Bunker Road over Bunker Creek is a concrete stringer/multi-beam or girder carrying Bunker Road over Bunker Creek in Lewis County, Washington. It was built in 1955, so it is 70 years old, older 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 24 vehicles a day, roughly 21% of them trucks, projected to reach 44 by 2042. The structure is 30 ft (9.1 m) long and 22 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesBunker Road
CrossesBunker Creek
Location10.0 NW Adna
RouteCounty Highway 24026
Coordinates46.69644, -123.2078
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length30 ft (9.1 m)
Longest span27 ft (8.2 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)
Projected traffic44 by 2042
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$314,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bunker Road over Bunker Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Bunker Road over Bunker 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 Road over Bunker Creek carry?

About 24 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is Bunker Road over Bunker Creek?

The structure is 30 ft (9.1 m) long with a longest span of 27 ft (8.2 m) and a deck 22 ft wide.

Who owns Bunker Road over Bunker Creek?

It is owned by the County Highway Agency.