US Bridges

US 12 over Davis Creek

Good

Lewis County, Washington · 6.8 E JCT SR 131 · Structure no. 0005378B0000000

Built
1957
68 years old
Condition
Good
inspected February 2023
Type
Tee Beam
Concrete Continuous
Length
85 ft
3 main spans
Daily traffic
2,712
2023 count
Owner
State
State Highway Agency

About this bridge

US 12 over Davis Creek is a concrete continuous tee beam carrying US 12 over Davis Creek in Lewis County, Washington. It was built in 1957, so it is 68 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 2,712 vehicles a day, roughly 19% of them trucks, projected to reach 4,281 by 2039. The structure is 85 ft (25.9 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 12
CrossesDavis Creek
Location6.8 E JCT SR 131
RouteU.S. Route 12
Coordinates46.53489, -121.81531
Functional classRural Principal Arterial - Other

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span55 ft (16.8 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,712 (2023)
Projected traffic4,281 by 2039
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 12 over Davis Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is US 12 over Davis 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 February 2023.

How much traffic does US 12 over Davis Creek carry?

About 2,712 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is US 12 over Davis Creek?

The structure is 85 ft (25.9 m) long with a longest span of 55 ft (16.8 m) and a deck 38 ft wide.

Who owns US 12 over Davis Creek?

It is owned by the State Highway Agency.