US Bridges

41st ST NE over I-5

Good

Snohomish County, Washington · 4.1 N JCT SR 527 · Structure no. 0016991L0000000

Built
2006
19 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
158 ft
1 main span
Daily traffic
33,594
2016 count
Owner
State
State Highway Agency

About this bridge

41st ST NE over I-5 is a prestressed concrete stringer/multi-beam or girder carrying 41st ST NE over I-5 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 33,594 vehicles a day, roughly 7% of them trucks, projected to reach 54,691 by 2038. The structure is 158 ft (48.2 m) long and 194 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries41st ST NE
CrossesI-5
Location4.1 N JCT SR 527
RouteCity Street 0
Coordinates47.96414, -122.19947
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable 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 rating99 US tons
Inventory rating75 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length158 ft (48.2 m)
Longest span156 ft (47.5 m)
Deck width194 ft (59.1 m)
Roadway width79 ft (24.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,594 (2016)
Projected traffic54,691 by 2038
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$6.1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 41st ST NE over I-5 built?

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

What condition is 41st ST NE over I-5 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 October 2023.

How much traffic does 41st ST NE over I-5 carry?

About 33,594 vehicles per day (2016 count), of which roughly 7% are trucks.

How long is 41st ST NE over I-5?

The structure is 158 ft (48.2 m) long with a longest span of 156 ft (47.5 m) and a deck 194 ft wide.

Who owns 41st ST NE over I-5?

It is owned by the State Highway Agency.