US Bridges

I-5 (hwy 001) over HWY 273

Fair

Jackson County, Oregon · 04.61 M North Cal State · Structure no. 09260A001 00461

Built
1965
60 years old, rebuilt 1977
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
136 ft
3 main spans
Daily traffic
16,843
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) over HWY 273 is a prestressed concrete stringer/multi-beam or girder carrying I-5 (hwy 001) over HWY 273 in Jackson County, Oregon. It was built in 1965 and reconstructed in 1977, so it is 60 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 16,843 vehicles a day, roughly 32% of them trucks, projected to reach 22,100 by 2042. The structure is 136 ft (41.4 m) long and 89 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesI-5 (hwy 001)
CrossesHWY 273
Location04.61 M North Cal State
RouteInterstate 5
CountyJackson County
StateOregon
Coordinates42.06404, -122.60258
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.4 US tons
Inventory rating15.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length136 ft (41.4 m)
Longest span47 ft (14.3 m)
Deck width89 ft (27 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,843 (2022)
Projected traffic22,100 by 2042
Trucks32%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed14.9 mi (24 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$697,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 (hwy 001) over HWY 273 built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1977.

What condition is I-5 (hwy 001) over HWY 273 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 June 2024.

How much traffic does I-5 (hwy 001) over HWY 273 carry?

About 16,843 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is I-5 (hwy 001) over HWY 273?

The structure is 136 ft (41.4 m) long with a longest span of 47 ft (14.3 m) and a deck 89 ft wide.

Who owns I-5 (hwy 001) over HWY 273?

It is owned by the State Highway Agency.