US Bridges

North River Road over North River

FairPosted for load

Pacific County, Washington · 00.0 Pacific CO Lin · Structure no. 081171000000000

Built
1959
66 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
180 ft
4 main spans
Daily traffic
204
2023 count
Owner
County
County Highway Agency

About this bridge

North River Road over North River is a concrete continuous slab carrying North River Road over North River in Pacific County, Washington. It was built in 1959, so it is 66 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 5 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 204 vehicles a day, roughly 5% of them trucks, projected to reach 280 by 2043. The structure is 180 ft (54.9 m) long and 27 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

CarriesNorth River Road
CrossesNorth River
Location00.0 Pacific CO Lin
RouteCounty Highway 96400
Coordinates46.79381, -123.53222
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating19 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, precast panels
Main spans4
Design loadHS 15
Structure length180 ft (54.9 m)
Longest span52 ft (15.8 m)
Deck width27 ft (8.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic204 (2023)
Projected traffic280 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was North River Road over North River built?

It was built in 1959, making it 66 years old in 2025.

What condition is North River Road over North 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 River Road over North River carry?

About 204 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is North River Road over North River?

The structure is 180 ft (54.9 m) long with a longest span of 52 ft (15.8 m) and a deck 27 ft wide.

Who owns North River Road over North River?

It is owned by the County Highway Agency.