US Bridges

I-5 (hwy 1) SB over Ehlen Road

Fair

Marion County, Oregon · 068 MI N of OR214 · Structure no. 07796B001 27867

Built
1955
70 years old, rebuilt 1973
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
47,912
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 1) SB over Ehlen Road is a concrete continuous slab carrying I-5 (hwy 1) SB over Ehlen Road in Marion County, Oregon. It was built in 1955 and reconstructed in 1973, so it is 70 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 47,912 vehicles a day, roughly 14% of them trucks, projected to reach 53,850 by 2042. The structure is 110 ft (33.5 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5 (hwy 1) SB
CrossesEhlen Road
Location068 MI N of OR214
RouteInterstate 5
CountyMarion County
StateOregon
Coordinates45.23454, -122.80692
Functional classRural Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span44 ft (13.4 m)
Deck width68 ft (20.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,912 (2022)
Projected traffic53,850 by 2042
Trucks14%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$564,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 (hwy 1) SB over Ehlen Road built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1973.

What condition is I-5 (hwy 1) SB over Ehlen Road 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 August 2024.

How much traffic does I-5 (hwy 1) SB over Ehlen Road carry?

About 47,912 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is I-5 (hwy 1) SB over Ehlen Road?

The structure is 110 ft (33.5 m) long with a longest span of 44 ft (13.4 m) and a deck 68 ft wide.

Who owns I-5 (hwy 1) SB over Ehlen Road?

It is owned by the State Highway Agency.