US Bridges

Riverfront Blvd over Bigelow Creek

Good

Snohomish County, Washington · 0.5 MI SE JCT 1-5/41st · Structure no. 088850000000000

Built
2012
13 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
1,286
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Riverfront Blvd over Bigelow Creek is a prestressed concrete stringer/multi-beam or girder carrying Riverfront Blvd over Bigelow Creek in Snohomish County, Washington. It was built in 2012, so it is 13 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 1,286 vehicles a day, roughly 5% of them trucks, projected to reach 1,550 by 2046. The structure is 104 ft (31.6 m) long and 49 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesRiverfront Blvd
CrossesBigelow Creek
Location0.5 MI SE JCT 1-5/41st
RouteCity Street 420
Coordinates47.96142, -122.19318
Functional classUrban Local

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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating77.5 US tons
Inventory rating54.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length104 ft (31.6 m)
Longest span97 ft (29.7 m)
Deck width49 ft (14.9 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,286 (2022)
Projected traffic1,550 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Riverfront Blvd over Bigelow Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Riverfront Blvd over Bigelow Creek 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 November 2024.

How much traffic does Riverfront Blvd over Bigelow Creek carry?

About 1,286 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Riverfront Blvd over Bigelow Creek?

The structure is 104 ft (31.6 m) long with a longest span of 97 ft (29.7 m) and a deck 49 ft wide.

Who owns Riverfront Blvd over Bigelow Creek?

It is owned by the City or Municipal Highway Agency.