US Bridges

Giles RD over Dakota CR

Fair

Whatcom County, Washington · .10 MI S of Mcgee · Structure no. 086178000000000

Built
1995
30 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
131 ft
1 main span
Daily traffic
275
2024 count
Owner
County
County Highway Agency

About this bridge

Giles RD over Dakota CR is a prestressed concrete stringer/multi-beam or girder carrying Giles RD over Dakota CR in Whatcom County, Washington. It was built in 1995, so it is 30 years old, younger 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 275 vehicles a day, roughly 2% of them trucks, projected to reach 650 by 2040. The structure is 131 ft (39.9 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesGiles RD
CrossesDakota CR
Location.10 MI S of Mcgee
RouteCounty Highway 32110
CountyWhatcom County
StateWashington
Coordinates48.9628, -122.6822
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length131 ft (39.9 m)
Longest span126 ft (38.4 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2024)
Projected traffic650 by 2040
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$5.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Giles RD over Dakota CR built?

It was built in 1995, making it 30 years old in 2025.

What condition is Giles 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 Giles RD over Dakota CR carry?

About 275 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Giles RD over Dakota CR?

The structure is 131 ft (39.9 m) long with a longest span of 126 ft (38.4 m) and a deck 31 ft wide.

Who owns Giles RD over Dakota CR?

It is owned by the County Highway Agency.