US Bridges

North Fork Road over Wilson River

Fair

Tillamook County, Oregon · 15.2 MI NE of Tillamook · Structure no. 20995 000 00000

Built
2006
19 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
116 ft
1 main span
Daily traffic
101
2010 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

North Fork Road over Wilson River is a prestressed concrete stringer/multi-beam or girder carrying North Fork Road over Wilson River in Tillamook County, Oregon. It was built in 2006, so it is 19 years old, younger than the Oregon average of 49.9 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 101 vehicles a day, roughly 2% of them trucks, projected to reach 154 by 2030. The structure is 116 ft (35.5 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesNorth Fork Road
CrossesWilson River
Location15.2 MI NE of Tillamook
RouteState Lands Road 0
StateOregon
Coordinates45.58763, -123.5541
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating68 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length116 ft (35.5 m)
Longest span116 ft (35.5 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101 (2010)
Projected traffic154 by 2030
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was North Fork Road over Wilson River built?

It was built in 2006, making it 19 years old in 2025.

What condition is North Fork Road over Wilson 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 July 2024.

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

About 101 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is North Fork Road over Wilson River?

The structure is 116 ft (35.5 m) long with a longest span of 116 ft (35.5 m) and a deck 32 ft wide.

Who owns North Fork Road over Wilson River?

It is owned by the State Park, Forest, or Reservation Agency.