US Bridges

Perkins Road over I-5 (hwy 1)

Good

Marion County, Oregon · 015 MI N Salem Ncl · Structure no. 07853A001 26190

Built
1975
50 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
320 ft
2 main spans
Daily traffic
94,995
2022 count
Owner
State
State Highway Agency

About this bridge

Perkins Road over I-5 (hwy 1) is a prestressed concrete continuous stringer/multi-beam or girder carrying Perkins Road over I-5 (hwy 1) in Marion County, Oregon. It was built in 1975, so it is 50 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 94,995 vehicles a day, roughly 14% of them trucks, projected to reach 105,200 by 2042. The structure is 320 ft (97.5 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesPerkins Road
CrossesI-5 (hwy 1)
Location015 MI N Salem Ncl
RouteCounty Highway 0
CountyMarion County
StateOregon
Coordinates45.02819, -122.9843
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating50.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length320 ft (97.5 m)
Longest span116 ft (35.4 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic94,995 (2022)
Projected traffic105,200 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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$1.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1975, making it 50 years old in 2025.

What condition is Perkins Road over I-5 (hwy 1) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

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

About 94,995 vehicles per day (2022 count), of which roughly 14% are trucks.

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

The structure is 320 ft (97.5 m) long with a longest span of 116 ft (35.4 m) and a deck 34 ft wide.

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

It is owned by the State Highway Agency.