US Bridges

Or 99E (hwy 81) over I-5 (hwy 1)

Fair

Marion County, Oregon · In Salem · Structure no. 17488 01E 04615

Built
1997
28 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
367 ft
2 main spans
Daily traffic
28,048
2022 count
Owner
State
State Highway Agency

About this bridge

Or 99E (hwy 81) over I-5 (hwy 1) is a prestressed concrete continuous box beam or girders - single or spread carrying Or 99E (hwy 81) over I-5 (hwy 1) in Marion County, Oregon. It was built in 1997, so it is 28 years old, younger 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 28,048 vehicles a day, roughly 3% of them trucks, projected to reach 29,500 by 2042. The structure is 367 ft (111.9 m) long and 109 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesOr 99E (hwy 81)
CrossesI-5 (hwy 1)
LocationIn Salem
RouteState Highway 99
CountyMarion County
StateOregon
Coordinates44.98343, -122.99386
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating33.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length367 ft (111.9 m)
Longest span188 ft (57.3 m)
Deck width109 ft (33.1 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,048 (2022)
Projected traffic29,500 by 2042
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$6.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Or 99E (hwy 81) over I-5 (hwy 1) built?

It was built in 1997, making it 28 years old in 2025.

What condition is Or 99E (hwy 81) 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 August 2023.

How much traffic does Or 99E (hwy 81) over I-5 (hwy 1) carry?

About 28,048 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Or 99E (hwy 81) over I-5 (hwy 1)?

The structure is 367 ft (111.9 m) long with a longest span of 188 ft (57.3 m) and a deck 109 ft wide.

Who owns Or 99E (hwy 81) over I-5 (hwy 1)?

It is owned by the State Highway Agency.