US Bridges

Loomis Trail RD over South Fork Dakota CR

Good

Whatcom County, Washington · East of N. Enterprise RD · Structure no. 086327000000000

Built
1950
75 years old, rebuilt 1997
Condition
Good
inspected March 2023
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
1,500
2023 count
Owner
County
County Highway Agency

About this bridge

Loomis Trail RD over South Fork Dakota CR is a concrete slab carrying Loomis Trail RD over South Fork Dakota CR in Whatcom County, Washington. It was built in 1950 and reconstructed in 1997, so it is 75 years old, older 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 1,500 vehicles a day, roughly 5% of them trucks, projected to reach 2,300 by 2045. The structure is 29 ft (8.8 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLoomis Trail RD
CrossesSouth Fork Dakota CR
LocationEast of N. Enterprise RD
RouteCounty Highway 26502
Coordinates48.95005, -122.56321
Functional classRural Minor 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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic2,300 by 2045
Trucks5%
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$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Loomis Trail RD over South Fork Dakota CR built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1997.

What condition is Loomis Trail RD over South Fork Dakota CR 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 March 2023.

How much traffic does Loomis Trail RD over South Fork Dakota CR carry?

About 1,500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Loomis Trail RD over South Fork Dakota CR?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 44 ft wide.

Who owns Loomis Trail RD over South Fork Dakota CR?

It is owned by the County Highway Agency.