US Bridges

US 2 over Ebey Slough Drainage

Fair

Snohomish County, Washington · 2.3 E JCT I-5 · Structure no. 0013995B0000000

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
1,318 ft
3 main spans
Daily traffic
15,507
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 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 15,507 vehicles a day, roughly 4% of them trucks, projected to reach 21,950 by 2039. The structure is 1,318 ft (401.7 m) long and 41 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 2
CrossesEbey Slough Drainage
Location2.3 E JCT I-5
RouteU.S. Route 2
Coordinates47.97783, -122.14211
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+15 approach)
Design loadHS 20 + Mod
Structure length1,318 ft (401.7 m)
Longest span168 ft (51.2 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,507 (2023)
Projected traffic21,950 by 2039
Trucks4%
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$25 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 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 2024.

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

About 15,507 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 2 over Ebey Slough Drainage?

The structure is 1,318 ft (401.7 m) long with a longest span of 168 ft (51.2 m) and a deck 41 ft wide.

Who owns US 2 over Ebey Slough Drainage?

It is owned by the State Highway Agency.