US Bridges

US 2 over Ebey Slough

Fair

Snohomish County, Washington · 1.1 E JCT I-5 · Structure no. 0007923A0000000

Built
1967
58 years old
Condition
Fair
inspected March 2024
Type
Channel Beam
Concrete
Length
381 ft
10 main spans
Daily traffic
1,133
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Ebey Slough is a concrete channel beam carrying US 2 over Ebey Slough in Snohomish County, Washington. It was built in 1967, 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 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 1,133 vehicles a day, roughly 10% of them trucks, projected to reach 1,446 by 2039. The structure is 381 ft (116.1 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 2
CrossesEbey Slough
Location1.1 E JCT I-5
RouteU.S. Route 2
CountySnohomish County
StateWashington
Coordinates47.97836, -122.16392
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating25.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans10
Design loadHS 20
Structure length381 ft (116.1 m)
Longest span38 ft (11.6 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,133 (2023)
Projected traffic1,446 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 2 over Ebey Slough built?

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

What condition is US 2 over Ebey Slough 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 March 2024.

How much traffic does US 2 over Ebey Slough carry?

About 1,133 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 2 over Ebey Slough?

The structure is 381 ft (116.1 m) long with a longest span of 38 ft (11.6 m) and a deck 24 ft wide.

Who owns US 2 over Ebey Slough?

It is owned by the State Highway Agency.