US Bridges

Snohomish Mnro RD over Pilchuck River

Good

Snohomish County, Washington · 0.8 S JCT SR 2 · Structure no. 086404000000000

Built
1999
26 years old
Condition
Good
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
138 ft
1 main span
Daily traffic
4,458
2021 count
Owner
County
County Highway Agency

About this bridge

Snohomish Mnro RD over Pilchuck River is a prestressed concrete tee beam carrying Snohomish Mnro RD over Pilchuck River in Snohomish County, Washington. It was built in 1999, so it is 26 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 4,458 vehicles a day, roughly 11% of them trucks, projected to reach 7,500 by 2042. The structure is 138 ft (42 m) long and 43 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesSnohomish Mnro RD
CrossesPilchuck River
Location0.8 S JCT SR 2
RouteCounty Highway 92665
Coordinates47.90159, -122.08719
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.9 US tons
Inventory rating61.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length138 ft (42 m)
Longest span133 ft (40.5 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,458 (2021)
Projected traffic7,500 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Snohomish Mnro RD over Pilchuck River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Snohomish Mnro RD over Pilchuck River 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 May 2024.

How much traffic does Snohomish Mnro RD over Pilchuck River carry?

About 4,458 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is Snohomish Mnro RD over Pilchuck River?

The structure is 138 ft (42 m) long with a longest span of 133 ft (40.5 m) and a deck 43 ft wide.

Who owns Snohomish Mnro RD over Pilchuck River?

It is owned by the County Highway Agency.