US Bridges

Or 11 (hwy 008) over Little Walla Walla River

Fair

Umatilla County, Oregon · 4.6 Mi. S. Wash. ST Line · Structure no. 06677A008 03075

Built
1948
77 years old, rebuilt 1975
Condition
Fair
inspected March 2023
Type
Frame
Concrete Continuous
Length
22 ft
1 main span
Daily traffic
10,992
2022 count
Owner
State
State Highway Agency

About this bridge

Or 11 (hwy 008) over Little Walla Walla River is a concrete continuous frame carrying Or 11 (hwy 008) over Little Walla Walla River in Umatilla County, Oregon. It was built in 1948 and reconstructed in 1975, so it is 77 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 10,992 vehicles a day, roughly 3% of them trucks, projected to reach 11,300 by 2042. The structure is 22 ft (6.7 m) long and 96 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesOr 11 (hwy 008)
CrossesLittle Walla Walla River
Location4.6 Mi. S. Wash. ST Line
RouteState Highway 11
StateOregon
Coordinates45.93475, -118.38766
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.9 US tons
Inventory rating18.5 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width96 ft (29.3 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,992 (2022)
Projected traffic11,300 by 2042
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 Or 11 (hwy 008) over Little Walla Walla River built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1975.

What condition is Or 11 (hwy 008) over Little 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 March 2023.

How much traffic does Or 11 (hwy 008) over Little Walla Walla River carry?

About 10,992 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Or 11 (hwy 008) over Little Walla Walla River?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 96 ft wide.

Who owns Or 11 (hwy 008) over Little Walla Walla River?

It is owned by the State Highway Agency.