US Bridges

US 2 over Ebey Slough Drainage

Good

Snohomish County, Washington · 2.2 E JCT I-5 · Structure no. 0013995C0000000

Built
1993
32 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
939 ft
4 main spans
Daily traffic
25,648
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Ebey Slough Drainage is a prestressed concrete continuous box beam or girders - multiple carrying US 2 over Ebey Slough Drainage in Snohomish County, Washington. It was built in 1993, so it is 32 years old, younger 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 25,648 vehicles a day, roughly 5% of them trucks, projected to reach 36,994 by 2039. The structure is 939 ft (286.2 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 2
CrossesEbey Slough Drainage
Location2.2 E JCT I-5
RouteU.S. Route 2
Coordinates47.978, -122.14203
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4 (+7 approach)
Design loadHS 20 + Mod
Structure length939 ft (286.2 m)
Longest span166 ft (50.6 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,648 (2023)
Projected traffic36,994 by 2039
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$18.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 2 over Ebey Slough Drainage built?

It was built in 1993, making it 32 years old in 2025.

What condition is US 2 over Ebey Slough Drainage 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 April 2024.

How much traffic does US 2 over Ebey Slough Drainage carry?

About 25,648 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 2 over Ebey Slough Drainage?

The structure is 939 ft (286.2 m) long with a longest span of 166 ft (50.6 m) and a deck 43 ft wide.

Who owns US 2 over Ebey Slough Drainage?

It is owned by the State Highway Agency.