US Bridges

I-5 over Abandoned RR

Good

Snohomish County, Washington · 3.5 N JCT SR 527 · Structure no. 0008132E0000000

Built
1967
58 years old, rebuilt 2007
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
260 ft
3 main spans
Daily traffic
78,048
2023 count
Owner
State
State Highway Agency

About this bridge

I-5 over Abandoned RR is a prestressed concrete stringer/multi-beam or girder carrying I-5 over Abandoned RR in Snohomish County, Washington. It was built in 1967 and reconstructed in 2007, so it is 58 years old, older than the Washington average of 49.8 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 78,048 vehicles a day, roughly 6% of them trucks, projected to reach 115,394 by 2039. The structure is 260 ft (79.2 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-5
CrossesAbandoned RR
Location3.5 N JCT SR 527
RouteInterstate 5
Coordinates47.96631, -122.19869
Functional classUrban Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.9 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length260 ft (79.2 m)
Longest span88 ft (26.8 m)
Deck width70 ft (21.2 m)
Roadway width67 ft (20.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78,048 (2023)
Projected traffic115,394 by 2039
Trucks6%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$8.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 over Abandoned RR built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2007.

What condition is I-5 over Abandoned RR 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 July 2024.

How much traffic does I-5 over Abandoned RR carry?

About 78,048 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-5 over Abandoned RR?

The structure is 260 ft (79.2 m) long with a longest span of 88 ft (26.8 m) and a deck 70 ft wide.

Who owns I-5 over Abandoned RR?

It is owned by the State Highway Agency.