US Bridges

Oakville Road over North River

Good

Pacific County, Washington · 2.2 SW Grays H CO · Structure no. 082621000000000

Built
1992
33 years old
Condition
Good
inspected June 2024
Type
Channel Beam
Prestressed Concrete Continuous
Length
97 ft
2 main spans
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Oakville Road over North River is a prestressed concrete continuous channel beam carrying Oakville Road over North River in Pacific County, Washington. It was built in 1992, so it is 33 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 40% of them trucks, projected to reach 300 by 2043. The structure is 97 ft (29.6 m) long and 31 ft wide. If it were closed, the detour would be 65.2 mi (105 km).

CarriesOakville Road
CrossesNorth River
Location2.2 SW Grays H CO
RouteCounty Highway 96400
Coordinates46.77597, -123.46778
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating33 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span58 ft (17.7 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic300 by 2043
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed65.2 mi (105 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Oakville Road over North River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Oakville Road over North River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does Oakville Road over North River carry?

About 100 vehicles per day (2023 count), of which roughly 40% are trucks.

How long is Oakville Road over North River?

The structure is 97 ft (29.6 m) long with a longest span of 58 ft (17.7 m) and a deck 31 ft wide.

Who owns Oakville Road over North River?

It is owned by the County Highway Agency.