US Bridges

River DR over Albany-Santiam Canal

PoorPosted for load

Linn County, Oregon · 0050 Miles SE CR 718 · Structure no. 11967A071900076

Built
1983
42 years old
Condition
Poor
inspected July 2024
Type
Slab
Prestressed Concrete
Length
63 ft
2 main spans
Daily traffic
1,390
2021 count
Owner
County
County Highway Agency

About this bridge

River DR over Albany-Santiam Canal is a prestressed concrete slab carrying River DR over Albany-Santiam Canal in Linn County, Oregon. It was built in 1983, so it is 42 years old, younger 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 1,390 vehicles a day, roughly 10% of them trucks, projected to reach 1,947 by 2041. The structure is 63 ft (19.2 m) long and 36 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesRiver DR
CrossesAlbany-Santiam Canal
Location0050 Miles SE CR 718
RouteCounty Highway A0474
StateOregon
Coordinates44.52049, -122.8916
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18.5 US tons
Inventory rating14.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span31 ft (9.4 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,390 (2021)
Projected traffic1,947 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 River DR over Albany-Santiam Canal built?

It was built in 1983, making it 42 years old in 2025.

What condition is River DR over Albany-Santiam 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 July 2024.

How much traffic does River DR over Albany-Santiam Canal carry?

About 1,390 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is River DR over Albany-Santiam Canal?

The structure is 63 ft (19.2 m) long with a longest span of 31 ft (9.4 m) and a deck 36 ft wide.

Who owns River DR over Albany-Santiam Canal?

It is owned by the County Highway Agency.