US Bridges

Lindsay RD over Sumas River

Good

Whatcom County, Washington · 00.2 W Garrison RD · Structure no. 086328000000000

Built
1997
28 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
267
2023 count
Owner
County
County Highway Agency

About this bridge

Lindsay RD over Sumas River is a prestressed concrete tee beam carrying Lindsay RD over Sumas River in Whatcom County, Washington. It was built in 1997, so it is 28 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 267 vehicles a day, roughly 2% of them trucks, projected to reach 305 by 2045. The structure is 75 ft (22.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLindsay RD
CrossesSumas River
Location00.2 W Garrison RD
RouteCounty Highway 63260
Coordinates48.94933, -122.29096
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating29.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length75 ft (22.9 m)
Longest span69 ft (21 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic267 (2023)
Projected traffic305 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$3.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lindsay RD over Sumas River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Lindsay RD over Sumas River 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 November 2023.

How much traffic does Lindsay RD over Sumas River carry?

About 267 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Lindsay RD over Sumas River?

The structure is 75 ft (22.9 m) long with a longest span of 69 ft (21 m) and a deck 31 ft wide.

Who owns Lindsay RD over Sumas River?

It is owned by the County Highway Agency.