US Bridges

9th Ave over Santiam-Albany Canal

PoorPosted for load

Linn County, Oregon · 9th Ave and Vine ST · Structure no. 43C02 000

Built
1930
95 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
2,575
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

9th Ave over Santiam-Albany Canal is a concrete continuous slab carrying 9th 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,575 vehicles a day, roughly 5% of them trucks, projected to reach 4,120 by 2041. The structure is 35 ft (10.7 m) long and 66 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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Carries9th Ave
CrossesSantiam-Albany Canal
Location9th Ave and Vine ST
RouteCity Street 0
CountyLinn County
StateOregon
Coordinates44.6303, -123.11115
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 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 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 Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length35 ft (10.7 m)
Longest span17 ft (5.2 m)
Deck width66 ft (20.1 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,575 (2021)
Projected traffic4,120 by 2041
Trucks5%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 9th Ave over Santiam-Albany Canal built?

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

What condition is 9th Ave over Santiam-Albany Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does 9th Ave over Santiam-Albany Canal carry?

About 2,575 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 9th Ave over Santiam-Albany Canal?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m) and a deck 66 ft wide.

Who owns 9th Ave over Santiam-Albany Canal?

It is owned by the City or Municipal Highway Agency.