US Bridges

41st St. over BNSF RR & Maple ST

Fair

Snohomish County, Washington · 0.1 E JCT I-5 · Structure no. 087687000000000

Built
2006
19 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
263 ft
3 main spans
Daily traffic
2,328
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

41st St. over BNSF RR & Maple ST is a prestressed concrete stringer/multi-beam or girder carrying 41st St. over BNSF RR & Maple ST in Snohomish County, Washington. It was built in 2006, so it is 19 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 2,328 vehicles a day, roughly 5% of them trucks, projected to reach 2,794 by 2046. The structure is 263 ft (80.3 m) long and 72 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
Carries41st St.
CrossesBNSF RR & Maple ST
Location0.1 E JCT I-5
RouteCity Street 420
CountySnohomish County
StateWashington
Coordinates47.96393, -122.19523
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.9 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length263 ft (80.3 m)
Longest span106 ft (32.2 m)
Deck width72 ft (21.8 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,328 (2022)
Projected traffic2,794 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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$16.1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 41st St. over BNSF RR & Maple ST built?

It was built in 2006, making it 19 years old in 2025.

What condition is 41st St. over BNSF RR & Maple ST 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 November 2024.

How much traffic does 41st St. over BNSF RR & Maple ST carry?

About 2,328 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is 41st St. over BNSF RR & Maple ST?

The structure is 263 ft (80.3 m) long with a longest span of 106 ft (32.2 m) and a deck 72 ft wide.

Who owns 41st St. over BNSF RR & Maple ST?

It is owned by the City or Municipal Highway Agency.