US Bridges

Riverside Road over Riverside RD BNSF RR

Good

Snohomish County, Washington · 0.1 NE JCT E. Marine View · Structure no. 087974000000000

Built
1998
27 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
635 ft
6 main spans
Daily traffic
1,000
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Riverside Road over Riverside RD BNSF RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Riverside Road over Riverside RD BNSF RR in Snohomish County, Washington. It was built in 1998, so it is 27 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 1,000 vehicles a day, roughly 40% of them trucks, projected to reach 2,000 by 2045. The structure is 635 ft (193.6 m) long and 40 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesRiverside Road
CrossesRiverside RD BNSF RR
Location0.1 NE JCT E. Marine View
RouteCity Street 420
Coordinates48.01144, -122.18877
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.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating32.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length635 ft (193.6 m)
Longest span125 ft (38 m)
Deck width40 ft (12.1 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2021)
Projected traffic2,000 by 2045
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$23.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Riverside Road over Riverside RD BNSF RR built?

It was built in 1998, making it 27 years old in 2025.

What condition is Riverside Road over Riverside RD BNSF RR 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 2023.

How much traffic does Riverside Road over Riverside RD BNSF RR carry?

About 1,000 vehicles per day (2021 count), of which roughly 40% are trucks.

How long is Riverside Road over Riverside RD BNSF RR?

The structure is 635 ft (193.6 m) long with a longest span of 125 ft (38 m) and a deck 40 ft wide.

Who owns Riverside Road over Riverside RD BNSF RR?

It is owned by the City or Municipal Highway Agency.