US Bridges

Walla Walla Rv RD over S Fork Walla Walla River

Fair

Umatilla County, Oregon · 4.5 MI SE of HWY 11 · Structure no. 59C435061000490

Built
1989
36 years old
Condition
Fair
inspected July 2023
Type
Slab
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
388
2020 count
Owner
County
County Highway Agency

About this bridge

Walla Walla Rv RD over S Fork Walla Walla River is a prestressed concrete slab carrying Walla Walla Rv RD over S Fork Walla Walla River in Umatilla County, Oregon. It was built in 1989, so it is 36 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 388 vehicles a day, roughly 10% of them trucks, projected to reach 473 by 2025. The structure is 74 ft (22.6 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesWalla Walla Rv RD
CrossesS Fork Walla Walla River
Location4.5 MI SE of HWY 11
RouteCounty Highway 0
StateOregon
Coordinates45.89598, -118.30682
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span73 ft (22.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic388 (2020)
Projected traffic473 by 2025
Trucks10%
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

OwnerCounty Highway Agency
Maintained byCounty Highway 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 Walla Walla Rv RD over S Fork Walla Walla River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Walla Walla Rv RD over S Fork Walla Walla 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 2023.

How much traffic does Walla Walla Rv RD over S Fork Walla Walla River carry?

About 388 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Walla Walla Rv RD over S Fork Walla Walla River?

The structure is 74 ft (22.6 m) long with a longest span of 73 ft (22.3 m) and a deck 28 ft wide.

Who owns Walla Walla Rv RD over S Fork Walla Walla River?

It is owned by the County Highway Agency.