US Bridges

Best Road over No Fork Skagit River

Fair

Skagit County, Washington · 5.5 W JCT Interstate 5 · Structure no. 081192000000000

Built
1959
66 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
726 ft
3 main spans
Daily traffic
3,693
2022 count
Owner
County
County Highway Agency

About this bridge

Best Road over No Fork Skagit River is a steel stringer/multi-beam or girder carrying Best Road over No Fork Skagit River in Skagit County, Washington. It was built in 1959, so it is 66 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 3,693 vehicles a day, roughly 10% of them trucks, projected to reach 6,670 by 2042. The structure is 726 ft (221.3 m) long and 28 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesBest Road
CrossesNo Fork Skagit River
Location5.5 W JCT Interstate 5
RouteCounty Highway 44010
CountySkagit County
StateWashington
Coordinates48.36183, -122.42339
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating22.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+5 approach)
Design loadH 20
Structure length726 ft (221.3 m)
Longest span150 ft (45.7 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,693 (2022)
Projected traffic6,670 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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$26.6 million (2022 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Best Road over No Fork Skagit River built?

It was built in 1959, making it 66 years old in 2025.

What condition is Best Road over No Fork Skagit 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 March 2024.

How much traffic does Best Road over No Fork Skagit River carry?

About 3,693 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Best Road over No Fork Skagit River?

The structure is 726 ft (221.3 m) long with a longest span of 150 ft (45.7 m) and a deck 28 ft wide.

Who owns Best Road over No Fork Skagit River?

It is owned by the County Highway Agency.