US Bridges

Breckinridge RD over Sumas River

Fair

Whatcom County, Washington · 00.4 E Nooksack Rd. · Structure no. 083918000000000

Built
1954
71 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
82 ft
4 main spans
Daily traffic
1,274
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Breckinridge RD over Sumas River is a concrete slab carrying Breckinridge RD over Sumas River in Whatcom County, Washington. It was built in 1954, so it is 71 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 1,274 vehicles a day, roughly 23% of them trucks, projected to reach 1,500 by 2045. The structure is 82 ft (25 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBreckinridge RD
CrossesSumas River
Location00.4 E Nooksack Rd.
RouteCounty Highway 66580
CountyWhatcom County
StateWashington
Coordinates48.955, -122.30833
Functional classRural 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length82 ft (25 m)
Longest span22 ft (6.7 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,274 (2023)
Projected traffic1,500 by 2045
Trucks23%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Breckinridge RD over Sumas River built?

It was built in 1954, making it 71 years old in 2025.

What condition is Breckinridge RD over Sumas 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 October 2023.

How much traffic does Breckinridge RD over Sumas River carry?

About 1,274 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is Breckinridge RD over Sumas River?

The structure is 82 ft (25 m) long with a longest span of 22 ft (6.7 m) and a deck 25 ft wide.

Who owns Breckinridge RD over Sumas River?

It is owned by the City or Municipal Highway Agency.