US Bridges

7th Ave over Santiam-Albany Canal

FairPosted for load

Linn County, Oregon · 7th Ave and Vine ST · Structure no. 43C13 000

Built
1930
95 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
1,648
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

7th Ave over Santiam-Albany Canal is a concrete slab carrying 7th Ave over Santiam-Albany Canal in Linn County, Oregon. It was built in 1930, so it is 95 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 1,648 vehicles a day, roughly 5% of them trucks, projected to reach 2,175 by 2041. The structure is 23 ft (7 m) long and 65 ft wide.

Carries7th Ave
CrossesSantiam-Albany Canal
Location7th Ave and Vine ST
RouteCity Street 0
StateOregon
Coordinates44.63188, -123.11147
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating31.7 US tons
Inventory rating24.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width65 ft (19.8 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,648 (2021)
Projected traffic2,175 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 7th Ave over Santiam-Albany Canal built?

It was built in 1930, making it 95 years old in 2025.

What condition is 7th Ave over Santiam-Albany 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 October 2024.

How much traffic does 7th Ave over Santiam-Albany Canal carry?

About 1,648 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 7th Ave over Santiam-Albany Canal?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 65 ft wide.

Who owns 7th Ave over Santiam-Albany Canal?

It is owned by the City or Municipal Highway Agency.