US Bridges

Cooper Road over US Feed Canal

Good

Umatilla County, Oregon · 0.15 MI S of N Loop · Structure no. 18954 117100015

Built
2001
24 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
97
2020 count
Owner
County
County Highway Agency

About this bridge

Cooper Road over US Feed Canal is a prestressed concrete slab carrying Cooper Road over US Feed Canal in Umatilla County, Oregon. It was built in 2001, so it is 24 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 97 vehicles a day, roughly 20% of them trucks, projected to reach 113 by 2025. The structure is 40 ft (12.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCooper Road
CrossesUS Feed Canal
Location0.15 MI S of N Loop
RouteCounty Highway 0
CountyUmatilla County
StateOregon
Coordinates45.78992, -119.17406
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating73.2 US tons
Inventory rating56.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length40 ft (12.3 m)
Longest span39 ft (12 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97 (2020)
Projected traffic113 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Cooper Road over US Feed Canal built?

It was built in 2001, making it 24 years old in 2025.

What condition is Cooper Road over US Feed Canal 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 July 2024.

How much traffic does Cooper Road over US Feed Canal carry?

About 97 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Cooper Road over US Feed Canal?

The structure is 40 ft (12.3 m) long with a longest span of 39 ft (12 m) and a deck 24 ft wide.

Who owns Cooper Road over US Feed Canal?

It is owned by the County Highway Agency.