US Bridges

Road over N Fk Skykomish River

Fair

Snohomish County, Washington · 0.1 MI N of 63/6335 JCT · Structure no. 060506000001290

Built
1963
62 years old, rebuilt 2010
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
200 ft
4 main spans
Daily traffic
10
1995 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over N Fk Skykomish River is a concrete continuous box beam or girders - multiple carrying Road over N Fk Skykomish River in Snohomish County, Washington. It was built in 1963 and reconstructed in 2010, so it is 62 years old, older 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 5 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 200 ft (61 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesRoad
CrossesN Fk Skykomish River
Location0.1 MI N of 63/6335 JCT
RouteFederal Lands Road 63350
Coordinates47.89169, -121.44169
Functional classRural Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.1 US tons
Inventory rating22 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length200 ft (61 m)
Longest span80 ft (24.4 m)
Deck width18 ft (5.6 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1995)
Projected traffic15 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over N Fk Skykomish River built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2010.

What condition is Road over N Fk Skykomish River 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 June 2023.

How much traffic does Road over N Fk Skykomish River carry?

About 10 vehicles per day (1995 count).

How long is Road over N Fk Skykomish River?

The structure is 200 ft (61 m) long with a longest span of 80 ft (24.4 m) and a deck 18 ft wide.

Who owns Road over N Fk Skykomish River?

It is owned by the U.S. Forest Service.