US Bridges

North River Road over North River

Good

Grays Harbor County, Washington · 8.7 E JCT US 101 · Structure no. 089088000000000

Built
2019
6 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
450 ft
4 main spans
Daily traffic
381
2020 count
Owner
County
County Highway Agency

About this bridge

North River Road over North River is a prestressed concrete continuous stringer/multi-beam or girder carrying North River Road over North River in Grays Harbor County, Washington. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 381 vehicles a day, roughly 27% of them trucks, projected to reach 465 by 2040. The structure is 450 ft (137.2 m) long and 37 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

CarriesNorth River Road
CrossesNorth River
Location8.7 E JCT US 101
RouteCounty Highway 96130
Coordinates46.83285, -123.58911
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length450 ft (137.2 m)
Longest span150 ft (45.7 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic381 (2020)
Projected traffic465 by 2040
Trucks27%
Lanes on structure2
Traffic directionTwo-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$16.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was North River Road over North River built?

It was built in 2019, making it 6 years old in 2025.

What condition is North River 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 February 2024.

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

About 381 vehicles per day (2020 count), of which roughly 27% are trucks.

How long is North River Road over North River?

The structure is 450 ft (137.2 m) long with a longest span of 150 ft (45.7 m) and a deck 37 ft wide.

Who owns North River Road over North River?

It is owned by the County Highway Agency.