US Bridges

Bay View-Edison RD over Samish Slough

Fair

Skagit County, Washington · 0.4 W JCT Farm to Market · Structure no. 080377000000000

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
1,026
2021 count
Owner
County
County Highway Agency

About this bridge

Bay View-Edison RD over Samish Slough is a prestressed concrete channel beam carrying Bay View-Edison RD over Samish Slough in Skagit County, Washington. It was built in 1965, so it is 60 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 1,026 vehicles a day, roughly 4% of them trucks, projected to reach 1,853 by 2041. The structure is 38 ft (11.6 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesBay View-Edison RD
CrossesSamish Slough
Location0.4 W JCT Farm to Market
RouteCounty Highway 31210
CountySkagit County
StateWashington
Coordinates48.55496, -122.45097
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.1 US tons
Inventory rating25.4 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,026 (2021)
Projected traffic1,853 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$1.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bay View-Edison RD over Samish Slough built?

It was built in 1965, making it 60 years old in 2025.

What condition is Bay View-Edison RD over Samish Slough 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 2024.

How much traffic does Bay View-Edison RD over Samish Slough carry?

About 1,026 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Bay View-Edison RD over Samish Slough?

The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 29 ft wide.

Who owns Bay View-Edison RD over Samish Slough?

It is owned by the County Highway Agency.