US Bridges

US 20 (hwy 16) over I-5 (hwy 1)

Fair

Linn County, Oregon · In Albany · Structure no. 08223 016 00106

Built
1958
67 years old, rebuilt 2005
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
309 ft
6 main spans
Daily traffic
20,157
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 (hwy 16) over I-5 (hwy 1) is a concrete continuous tee beam carrying US 20 (hwy 16) over I-5 (hwy 1) in Linn County, Oregon. It was built in 1958 and reconstructed in 2005, so it is 67 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.

It carries about 20,157 vehicles a day, roughly 1% of them trucks, projected to reach 28,000 by 2042. The structure is 309 ft (94.2 m) long and 82 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesUS 20 (hwy 16)
CrossesI-5 (hwy 1)
LocationIn Albany
RouteU.S. Route 20
StateOregon
Coordinates44.63014, -123.06209
Functional classUrban Other Principal Arterial

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.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length309 ft (94.2 m)
Longest span74 ft (22.7 m)
Deck width82 ft (25.1 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,157 (2022)
Projected traffic28,000 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 20 (hwy 16) over I-5 (hwy 1) built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2005.

What condition is US 20 (hwy 16) over I-5 (hwy 1) 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 February 2024.

How much traffic does US 20 (hwy 16) over I-5 (hwy 1) carry?

About 20,157 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is US 20 (hwy 16) over I-5 (hwy 1)?

The structure is 309 ft (94.2 m) long with a longest span of 74 ft (22.7 m) and a deck 82 ft wide.

Who owns US 20 (hwy 16) over I-5 (hwy 1)?

It is owned by the State Highway Agency.