US Bridges

Cook Road over Brickyard Creek

Good

Skagit County, Washington · MP 5.38 Cook RD · Structure no. 086554000000000

Built
2000
25 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
15,887
2023 count
Owner
County
County Highway Agency

About this bridge

Cook Road over Brickyard Creek is a prestressed concrete stringer/multi-beam or girder carrying Cook Road over Brickyard Creek in Skagit County, Washington. It was built in 2000, so it is 25 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,887 vehicles a day, roughly 8% of them trucks, projected to reach 28,693 by 2043. The structure is 54 ft (16.5 m) long and 57 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCook Road
CrossesBrickyard Creek
LocationMP 5.38 Cook RD
RouteCounty Highway 63000
Coordinates48.50747, -122.26039
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length54 ft (16.5 m)
Longest span51 ft (15.5 m)
Deck width57 ft (17.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,887 (2023)
Projected traffic28,693 by 2043
Trucks8%
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cook Road over Brickyard Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Cook Road over Brickyard Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Cook Road over Brickyard Creek carry?

About 15,887 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Cook Road over Brickyard Creek?

The structure is 54 ft (16.5 m) long with a longest span of 51 ft (15.5 m) and a deck 57 ft wide.

Who owns Cook Road over Brickyard Creek?

It is owned by the County Highway Agency.