US Bridges

North Valley Road over Naselle River

FairPosted for load

Pacific County, Washington · 3.0 E JCT 4 & 401 · Structure no. 079732000000000

Built
1963
62 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete Continuous
Length
176 ft
3 main spans
Daily traffic
152
2023 count
Owner
County
County Highway Agency

About this bridge

North Valley Road over Naselle River is a concrete continuous tee beam carrying North Valley Road over Naselle River in Pacific County, Washington. It was built in 1963, so it is 62 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. Its operating status is: posted for load restriction.

It carries about 152 vehicles a day, roughly 5% of them trucks, projected to reach 300 by 2043. The structure is 176 ft (53.6 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNorth Valley Road
CrossesNaselle River
Location3.0 E JCT 4 & 401
RouteCounty Highway 91280
Coordinates46.37281, -123.74681
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33 US tons
Inventory rating24 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length176 ft (53.6 m)
Longest span70 ft (21.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic152 (2023)
Projected traffic300 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was North Valley Road over Naselle River built?

It was built in 1963, making it 62 years old in 2025.

What condition is North Valley Road over Naselle River 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 June 2024.

How much traffic does North Valley Road over Naselle River carry?

About 152 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is North Valley Road over Naselle River?

The structure is 176 ft (53.6 m) long with a longest span of 70 ft (21.3 m) and a deck 26 ft wide.

Who owns North Valley Road over Naselle River?

It is owned by the County Highway Agency.