US Bridges

Road over Wilson Creek

Fair

Grant County, Oregon · Junction 23/2128 · Structure no. 061402000001006

Built
1960
65 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
78 ft
3 main spans
Daily traffic
10
2009 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Wilson Creek is a wood or timber stringer/multi-beam or girder carrying Road over Wilson Creek in Grant County, Oregon. It was built in 1960, so it is 65 years old, older 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 78 ft (23.8 m) long and 17 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

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CarriesRoad
CrossesWilson Creek
LocationJunction 23/2128
RouteFederal Lands Road 23000
CountyGrant County
StateOregon
Coordinates44.92443, -119.57024
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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.1 US tons
Inventory rating32.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadOther
Structure length78 ft (23.8 m)
Longest span54 ft (16.6 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2009)
Projected traffic15 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Wilson Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Road over Wilson Creek 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 August 2023.

How much traffic does Road over Wilson Creek carry?

About 10 vehicles per day (2009 count).

How long is Road over Wilson Creek?

The structure is 78 ft (23.8 m) long with a longest span of 54 ft (16.6 m) and a deck 17 ft wide.

Who owns Road over Wilson Creek?

It is owned by the U.S. Forest Service.