US Bridges

Delta Line RD over Dakota CR

Fair

Whatcom County, Washington · 00.2 N Jess Rd. · Structure no. 083196000000000

Built
1950
75 years old, rebuilt 2005
Condition
Fair
inspected April 2024
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
808
2024 count
Owner
County
County Highway Agency

About this bridge

Delta Line RD over Dakota CR is a concrete channel beam carrying Delta Line RD over Dakota CR in Whatcom County, Washington. It was built in 1950 and reconstructed in 2005, 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 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 808 vehicles a day, roughly 1% of them trucks, projected to reach 1,000 by 2040. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesDelta Line RD
CrossesDakota CR
Location00.2 N Jess Rd.
RouteCounty Highway 30892
Coordinates48.94553, -122.61611
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating41 US tons
Inventory rating31 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic808 (2024)
Projected traffic1,000 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Delta Line RD over Dakota CR built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2005.

What condition is Delta Line RD over Dakota CR 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 April 2024.

How much traffic does Delta Line RD over Dakota CR carry?

About 808 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Delta Line RD over Dakota CR?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Delta Line RD over Dakota CR?

It is owned by the County Highway Agency.