US Bridges

Custer School RD over Dakota CR

FairPosted for load

Whatcom County, Washington · 00.6 S Behme RD · Structure no. 081520000000000

Built
1950
75 years old, rebuilt 1975
Condition
Fair
inspected February 2023
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
844
2023 count
Owner
County
County Highway Agency

About this bridge

Custer School RD over Dakota CR is a concrete channel beam carrying Custer School RD over Dakota CR in Whatcom County, Washington. It was built in 1950 and reconstructed in 1975, 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 844 vehicles a day, roughly 3% of them trucks, projected to reach 1,500 by 2043. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCuster School RD
CrossesDakota CR
Location00.6 S Behme RD
RouteCounty Highway 24310
CountyWhatcom County
StateWashington
Coordinates48.95036, -122.63807
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 rating26.1 US tons
Inventory rating18.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic844 (2023)
Projected traffic1,500 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Custer School RD over Dakota CR built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1975.

What condition is Custer School 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 February 2023.

How much traffic does Custer School RD over Dakota CR carry?

About 844 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Custer School RD over Dakota CR?

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

Who owns Custer School RD over Dakota CR?

It is owned by the County Highway Agency.