US Bridges

FR RD HWY 351 over Wallowa R (state Park)

Fair

Wallowa County, Oregon · Wallowa Lake State Park · Structure no. 04917A351F00606

Built
1950
75 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
85 ft
4 main spans
Daily traffic
643
2022 count
Owner
State
State Highway Agency

About this bridge

FR RD HWY 351 over Wallowa R (state Park) is a concrete continuous slab carrying FR RD HWY 351 over Wallowa R (state Park) in Wallowa County, Oregon. It was built in 1950, so it is 75 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 5 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 643 vehicles a day, roughly 17% of them trucks, projected to reach 650 by 2042. The structure is 85 ft (25.9 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesFR RD HWY 351
CrossesWallowa R (state Park)
LocationWallowa Lake State Park
RouteState Highway 351
CountyWallowa County
StateOregon
Coordinates45.28081, -117.20938
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.1 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length85 ft (25.9 m)
Longest span22 ft (6.7 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic643 (2022)
Projected traffic650 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FR RD HWY 351 over Wallowa R (state Park) built?

It was built in 1950, making it 75 years old in 2025.

What condition is FR RD HWY 351 over Wallowa R (state Park) 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 2023.

How much traffic does FR RD HWY 351 over Wallowa R (state Park) carry?

About 643 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is FR RD HWY 351 over Wallowa R (state Park)?

The structure is 85 ft (25.9 m) long with a longest span of 22 ft (6.7 m) and a deck 34 ft wide.

Who owns FR RD HWY 351 over Wallowa R (state Park)?

It is owned by the State Highway Agency.