US Bridges

Slater RD over Jordan Creek

Good

Whatcom County, Washington · 0.1 West of Elder Road · Structure no. 088941000000000

Built
2017
8 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
142 ft
1 main span
Daily traffic
15,000
2023 count
Owner
County
County Highway Agency

About this bridge

Slater RD over Jordan Creek is a concrete continuous stringer/multi-beam or girder carrying Slater RD over Jordan Creek in Whatcom County, Washington. It was built in 2017, so it is 8 years old, younger 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 15,000 vehicles a day, roughly 3% of them trucks, projected to reach 17,000 by 2045. The structure is 142 ft (43.3 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSlater RD
CrossesJordan Creek
Location0.1 West of Elder Road
RouteCounty Highway 14760
Coordinates48.81943, -122.16403
Functional classRural Major 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating45.7 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length142 ft (43.3 m)
Longest span135 ft (41 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2023)
Projected traffic17,000 by 2045
Trucks3%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.5 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Slater RD over Jordan Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Slater RD over Jordan Creek 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 November 2023.

How much traffic does Slater RD over Jordan Creek carry?

About 15,000 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Slater RD over Jordan Creek?

The structure is 142 ft (43.3 m) long with a longest span of 135 ft (41 m) and a deck 41 ft wide.

Who owns Slater RD over Jordan Creek?

It is owned by the County Highway Agency.