US Bridges

Wallowa Loop Road over Lake Fork Creek

Fair

Baker County, Oregon · Lake Fork Campground · Structure no. 061604000001033

Built
1960
65 years old
Condition
Fair
inspected July 2024
Type
Frame
Concrete Continuous
Length
65 ft
3 main spans
Daily traffic
225
2001 count
Owner
Federal
U.S. Forest Service

About this bridge

Wallowa Loop Road over Lake Fork Creek is a concrete continuous frame carrying Wallowa Loop Road over Lake Fork Creek in Baker 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 225 vehicles a day, roughly 5% of them trucks, projected to reach 337 by 2045. The structure is 65 ft (19.9 m) long and 29 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesWallowa Loop Road
CrossesLake Fork Creek
LocationLake Fork Campground
RouteFederal Lands Road 39000
StateOregon
Coordinates45.00861, -116.91
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.1 US tons
Inventory rating27 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length65 ft (19.9 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2001)
Projected traffic337 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 Wallowa Loop Road over Lake Fork Creek built?

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

What condition is Wallowa Loop Road over Lake Fork 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 July 2024.

How much traffic does Wallowa Loop Road over Lake Fork Creek carry?

About 225 vehicles per day (2001 count), of which roughly 5% are trucks.

How long is Wallowa Loop Road over Lake Fork Creek?

The structure is 65 ft (19.9 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns Wallowa Loop Road over Lake Fork Creek?

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