US Bridges

Smokey Point Blvd over Portage Creek

Fair

Snohomish County, Washington · 0.7 S JCT SR 530 · Structure no. 082264000000000

Built
1922
103 years old, rebuilt 1972
Condition
Fair
inspected September 2024
Type
Arch - Deck
Concrete
Length
50 ft
1 main span
Daily traffic
5,619
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Smokey Point Blvd over Portage Creek is a concrete arch - deck carrying Smokey Point Blvd over Portage Creek in Snohomish County, Washington. It was built in 1922 and reconstructed in 1972, so it is 103 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 5,619 vehicles a day, roughly 27% of them trucks, projected to reach 7,500 by 2046. The structure is 50 ft (15.1 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSmokey Point Blvd
CrossesPortage Creek
Location0.7 S JCT SR 530
RouteCounty Highway 45
Coordinates48.17832, -122.19368
Functional classUrban Minor 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.
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 above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating28 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length50 ft (15.1 m)
Longest span50 ft (15.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,619 (2024)
Projected traffic7,500 by 2046
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Smokey Point Blvd over Portage Creek built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1972.

What condition is Smokey Point Blvd over Portage Creek 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 Smokey Point Blvd over Portage Creek carry?

About 5,619 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is Smokey Point Blvd over Portage Creek?

The structure is 50 ft (15.1 m) long with a longest span of 50 ft (15.1 m) and a deck 31 ft wide.

Who owns Smokey Point Blvd over Portage Creek?

It is owned by the City or Municipal Highway Agency.