US Bridges

SR 14 over West Camas Slough

Fair

Clark County, Washington · 6.7 E JCT I-205 · Structure no. 0007138A0000000

Built
1964
61 years old, rebuilt 2013
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,038 ft
6 main spans
Daily traffic
29,477
2023 count
Owner
State
State Highway Agency

About this bridge

SR 14 over West Camas Slough is a steel continuous stringer/multi-beam or girder carrying SR 14 over West Camas Slough in Clark County, Washington. It was built in 1964 and reconstructed in 2013, so it is 61 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 29,477 vehicles a day, roughly 8% of them trucks, projected to reach 45,244 by 2039. The structure is 1,038 ft (316.4 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR 14
CrossesWest Camas Slough
Location6.7 E JCT I-205
RouteState Highway 14
CountyClark County
StateWashington
Coordinates45.57861, -122.42464
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length1,038 ft (316.4 m)
Longest span284 ft (86.6 m)
Deck width37 ft (11.2 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,477 (2023)
Projected traffic45,244 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed3.7 mi (6 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$20.7 million (2022 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was SR 14 over West Camas Slough built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2013.

What condition is SR 14 over West Camas Slough 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 April 2023.

How much traffic does SR 14 over West Camas Slough carry?

About 29,477 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 14 over West Camas Slough?

The structure is 1,038 ft (316.4 m) long with a longest span of 284 ft (86.6 m) and a deck 37 ft wide.

Who owns SR 14 over West Camas Slough?

It is owned by the State Highway Agency.