US Bridges

I-5 over SR529 RR Ebey Sl 60th Pl

Fair

Snohomish County, Washington · 4.6 N JCT US 2 · Structure no. 0008400A0000000

Built
1969
56 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
2,062 ft
21 main spans
Daily traffic
64,989
2023 count
Owner
State
State Highway Agency

About this bridge

I-5 over SR529 RR Ebey Sl 60th Pl is a prestressed concrete continuous stringer/multi-beam or girder carrying I-5 over SR529 RR Ebey Sl 60th Pl in Snohomish County, Washington. It was built in 1969, so it is 56 years old, older than the Washington average of 49.8 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 64,989 vehicles a day, roughly 6% of them trucks, projected to reach 95,649 by 2039. The structure is 2,062 ft (628.5 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-5
CrossesSR529 RR Ebey Sl 60th Pl
Location4.6 N JCT US 2
RouteInterstate 5
Coordinates48.04331, -122.18053
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.4 US tons
Inventory rating16.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans21
Design loadHS 20 + Mod
Structure length2,062 ft (628.5 m)
Longest span124 ft (37.8 m)
Deck width63 ft (19.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,989 (2023)
Projected traffic95,649 by 2039
Trucks6%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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$62.7 million (2022 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I-5 over SR529 RR Ebey Sl 60th Pl built?

It was built in 1969, making it 56 years old in 2025.

What condition is I-5 over SR529 RR Ebey Sl 60th Pl 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 September 2024.

How much traffic does I-5 over SR529 RR Ebey Sl 60th Pl carry?

About 64,989 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-5 over SR529 RR Ebey Sl 60th Pl?

The structure is 2,062 ft (628.5 m) long with a longest span of 124 ft (37.8 m) and a deck 63 ft wide.

Who owns I-5 over SR529 RR Ebey Sl 60th Pl?

It is owned by the State Highway Agency.