US Bridges

US 2 over Sultan River

Fair

Snohomish County, Washington · 7.1 E JCT SR 203 · Structure no. 0002580A0000000

Built
1940
85 years old
Condition
Fair
inspected March 2024
Type
Truss - Thru
Steel
Length
590 ft
1 main span
Daily traffic
23,022
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Sultan River is a steel truss - thru carrying US 2 over Sultan River in Snohomish County, Washington. It was built in 1940, so it is 85 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 23,022 vehicles a day, roughly 6% of them trucks, projected to reach 30,743 by 2039. The structure is 590 ft (179.8 m) long and 26 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesUS 2
CrossesSultan River
Location7.1 E JCT SR 203
RouteU.S. Route 2
CountySnohomish County
StateWashington
Coordinates47.8606, -121.82131
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+13 approach)
Design loadH 15
Structure length590 ft (179.8 m)
Longest span240 ft (73.2 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck15 ft (4.4 m)

Traffic and service

Average daily traffic23,022 (2023)
Projected traffic30,743 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$11.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 2 over Sultan River built?

It was built in 1940, making it 85 years old in 2025.

What condition is US 2 over Sultan River 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 Sultan River carry?

About 23,022 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 2 over Sultan River?

The structure is 590 ft (179.8 m) long with a longest span of 240 ft (73.2 m) and a deck 26 ft wide.

Who owns US 2 over Sultan River?

It is owned by the State Highway Agency.