US Bridges

8th Street over Umatilla River

Good

Umatilla County, Oregon · 0.1 MI N of Court Avenue · Structure no. 22577 983 00001

Built
2019
6 years old
Condition
Good
inspected May 2023
Type
Truss - Thru
Steel
Length
270 ft
1 main span
Daily traffic
551
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

8th Street over Umatilla River is a steel truss - thru carrying 8th Street over Umatilla River in Umatilla County, Oregon. It was built in 2019, so it is 6 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 551 vehicles a day, roughly 10% of them trucks, projected to reach 675 by 2030. The structure is 270 ft (82.3 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Carries8th Street
CrossesUmatilla River
Location0.1 MI N of Court Avenue
RouteCounty Highway 0
StateOregon
Coordinates45.67635, -118.77969
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating31.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length270 ft (82.3 m)
Longest span192 ft (58.5 m)
Deck width45 ft (13.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic551 (2010)
Projected traffic675 by 2030
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 8th Street over Umatilla River built?

It was built in 2019, making it 6 years old in 2025.

What condition is 8th Street over Umatilla River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does 8th Street over Umatilla River carry?

About 551 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is 8th Street over Umatilla River?

The structure is 270 ft (82.3 m) long with a longest span of 192 ft (58.5 m) and a deck 45 ft wide.

Who owns 8th Street over Umatilla River?

It is owned by the City or Municipal Highway Agency.