US Bridges

Index-Garland RD over N.F. Skykomish River

Fair

Snohomish County, Washington · 10.1 NE JCT SR 2 · Structure no. 082757000000000

Built
1970
55 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
174 ft
1 main span
Daily traffic
54
2020 count
Owner
County
County Highway Agency

About this bridge

Index-Garland RD over N.F. Skykomish River is a steel stringer/multi-beam or girder carrying Index-Garland RD over N.F. Skykomish River in Snohomish County, Washington. It was built in 1970, so it is 55 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 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 54 vehicles a day, roughly 10% of them trucks, projected to reach 200 by 2046. The structure is 174 ft (53 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesIndex-Garland RD
CrossesN.F. Skykomish River
Location10.1 NE JCT SR 2
RouteCounty Highway 54600
CountySnohomish County
StateWashington
Coordinates47.89685, -121.42231
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 15
Structure length174 ft (53 m)
Longest span128 ft (39 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2020)
Projected traffic200 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$6.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Index-Garland RD over N.F. Skykomish River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Index-Garland RD over N.F. 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 July 2024.

How much traffic does Index-Garland RD over N.F. Skykomish River carry?

About 54 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Index-Garland RD over N.F. Skykomish River?

The structure is 174 ft (53 m) long with a longest span of 128 ft (39 m) and a deck 30 ft wide.

Who owns Index-Garland RD over N.F. Skykomish River?

It is owned by the County Highway Agency.