US Bridges

HWY 164 over I-5 (hwy 1)

Fair

Marion County, Oregon · 003 MI S SB HWY 001 JCT · Structure no. 07941 164 00025

Built
1958
67 years old, rebuilt 1995
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
271 ft
5 main spans
Daily traffic
3,543
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 164 over I-5 (hwy 1) is a concrete continuous tee beam carrying HWY 164 over I-5 (hwy 1) in Marion County, Oregon. It was built in 1958 and reconstructed in 1995, 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 3,543 vehicles a day, roughly 9% of them trucks, projected to reach 4,300 by 2042. The structure is 271 ft (82.6 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesHWY 164
CrossesI-5 (hwy 1)
Location003 MI S SB HWY 001 JCT
RouteState Highway 164
CountyMarion County
StateOregon
Coordinates44.79345, -123.03466
Functional classRural Minor 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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length271 ft (82.6 m)
Longest span59 ft (18 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,543 (2022)
Projected traffic4,300 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY 164 over I-5 (hwy 1) built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1995.

What condition is HWY 164 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 July 2023.

How much traffic does HWY 164 over I-5 (hwy 1) carry?

About 3,543 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is HWY 164 over I-5 (hwy 1)?

The structure is 271 ft (82.6 m) long with a longest span of 59 ft (18 m) and a deck 31 ft wide.

Who owns HWY 164 over I-5 (hwy 1)?

It is owned by the State Highway Agency.