US Bridges

North Dillard Ave over Baker River

FairPosted for load

Skagit County, Washington · 0.1 N Main ST · Structure no. 085135000000000

Built
1916
109 years old, rebuilt 2004
Condition
Fair
inspected August 2023
Type
Arch - Deck
Concrete
Length
269 ft
1 main span
Daily traffic
150
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

North Dillard Ave over Baker River is a concrete arch - deck carrying North Dillard Ave over Baker River in Skagit County, Washington. It was built in 1916 and reconstructed in 2004, so it is 109 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. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 12% of them trucks, projected to reach 223 by 2043. The structure is 269 ft (82 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNorth Dillard Ave
CrossesBaker River
Location0.1 N Main ST
RouteCity Street 260
Coordinates48.54056, -121.74419
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating13 US tons
Inventory rating8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length269 ft (82 m)
Longest span196 ft (59.7 m)
Deck width27 ft (8.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic223 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was North Dillard Ave over Baker River built?

It was built in 1916, making it 109 years old in 2025. It was reconstructed in 2004.

What condition is North Dillard Ave over Baker 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 August 2023.

How much traffic does North Dillard Ave over Baker River carry?

About 150 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is North Dillard Ave over Baker River?

The structure is 269 ft (82 m) long with a longest span of 196 ft (59.7 m) and a deck 27 ft wide.

Who owns North Dillard Ave over Baker River?

It is owned by the City or Municipal Highway Agency.