US Bridges

US 12 over Cedar Creek

Fair

Grays Harbor County, Washington · 10.5 E JCT SR 8 · Structure no. 0001576A0000000

Built
1932
93 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
121 ft
3 main spans
Daily traffic
5,851
2023 count
Owner
State
State Highway Agency

About this bridge

US 12 over Cedar Creek is a concrete tee beam carrying US 12 over Cedar Creek in Grays Harbor County, Washington. It was built in 1932, so it is 93 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 5,851 vehicles a day, roughly 13% of them trucks, projected to reach 6,831 by 2039. The structure is 121 ft (36.9 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 12
CrossesCedar Creek
Location10.5 E JCT SR 8
RouteU.S. Route 12
CountyGrays Harbor County
StateWashington
Coordinates46.87975, -123.27175
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating27.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length121 ft (36.9 m)
Longest span60 ft (18.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,851 (2023)
Projected traffic6,831 by 2039
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 12 over Cedar Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is US 12 over Cedar Creek 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 2024.

How much traffic does US 12 over Cedar Creek carry?

About 5,851 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 12 over Cedar Creek?

The structure is 121 ft (36.9 m) long with a longest span of 60 ft (18.3 m) and a deck 27 ft wide.

Who owns US 12 over Cedar Creek?

It is owned by the State Highway Agency.