US Bridges

Devonshire Road over US 12

Fair

Grays Harbor County, Washington · 9.5 E JCT US 101 · Structure no. 0013795A0000000

Built
1991
34 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
247 ft
2 main spans
Daily traffic
2,917
2010 count
Owner
State
State Highway Agency

About this bridge

Devonshire Road over US 12 is a prestressed concrete continuous stringer/multi-beam or girder carrying Devonshire Road over US 12 in Grays Harbor County, Washington. It was built in 1991, so it is 34 years old, younger 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 2,917 vehicles a day, roughly 1% of them trucks, projected to reach 3,751 by 2036. The structure is 247 ft (75.3 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesDevonshire Road
CrossesUS 12
Location9.5 E JCT US 101
RouteCounty Highway 0
CountyGrays Harbor County
StateWashington
Coordinates46.97519, -123.62169
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length247 ft (75.3 m)
Longest span123 ft (37.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,917 (2010)
Projected traffic3,751 by 2036
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4.9 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Devonshire Road over US 12 built?

It was built in 1991, making it 34 years old in 2025.

What condition is Devonshire Road over US 12 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 February 2024.

How much traffic does Devonshire Road over US 12 carry?

About 2,917 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Devonshire Road over US 12?

The structure is 247 ft (75.3 m) long with a longest span of 123 ft (37.5 m) and a deck 43 ft wide.

Who owns Devonshire Road over US 12?

It is owned by the State Highway Agency.