US Bridges

16th ST NE over Little Pilchuck Creek

Good

Snohomish County, Washington · 1.7 S JCT SR 92 · Structure no. 086829000000000

Built
2002
23 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
95 ft
1 main span
Daily traffic
1,285
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

16th ST NE over Little Pilchuck Creek is a prestressed concrete tee beam carrying 16th ST NE over Little Pilchuck Creek in Snohomish County, Washington. It was built in 2002, so it is 23 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 1,285 vehicles a day, roughly 6% of them trucks, projected to reach 3,000 by 2044. The structure is 95 ft (29 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries16th ST NE
CrossesLittle Pilchuck Creek
Location1.7 S JCT SR 92
RouteCounty Highway 664
Coordinates48.0117, -122.04866
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating42.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length95 ft (29 m)
Longest span89 ft (27.2 m)
Deck width44 ft (13.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,285 (2023)
Projected traffic3,000 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$3.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 16th ST NE over Little Pilchuck Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is 16th ST NE over Little Pilchuck 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 2023.

How much traffic does 16th ST NE over Little Pilchuck Creek carry?

About 1,285 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is 16th ST NE over Little Pilchuck Creek?

The structure is 95 ft (29 m) long with a longest span of 89 ft (27.2 m) and a deck 44 ft wide.

Who owns 16th ST NE over Little Pilchuck Creek?

It is owned by the City or Municipal Highway Agency.