US Bridges

Highland Avenue over A Line Canal

FairPosted for load

Umatilla County, Oregon · 1.4 MI E of HWY 395 · Structure no. 59C197120000700

Built
1965
60 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
2,186
2020 count
Owner
County
County Highway Agency

About this bridge

Highland Avenue over A Line Canal is a steel stringer/multi-beam or girder carrying Highland Avenue over A Line Canal in Umatilla County, Oregon. It was built in 1965, so it is 60 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 2,186 vehicles a day, roughly 20% of them trucks, projected to reach 2,556 by 2025. The structure is 41 ft (12.5 m) long and 25 ft wide.

Location

Open in Google Maps
CarriesHighland Avenue
CrossesA Line Canal
Location1.4 MI E of HWY 395
RouteCounty Highway 0
CountyUmatilla County
StateOregon
Coordinates45.83486, -119.26247
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19 US tons
Inventory rating14.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,186 (2020)
Projected traffic2,556 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Highland Avenue over A Line Canal built?

It was built in 1965, making it 60 years old in 2025.

What condition is Highland Avenue over A Line Canal 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 November 2024.

How much traffic does Highland Avenue over A Line Canal carry?

About 2,186 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Highland Avenue over A Line Canal?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 25 ft wide.

Who owns Highland Avenue over A Line Canal?

It is owned by the County Highway Agency.