US Bridges

SR 542 over Gallup Creek

Good

Whatcom County, Washington · 10.5 E JCT SR 547 · Structure no. 0017911A0000000

Built
2010
15 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
115 ft
1 main span
Daily traffic
1,916
2023 count
Owner
State
State Highway Agency

About this bridge

SR 542 over Gallup Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 542 over Gallup Creek in Whatcom County, Washington. It was built in 2010, so it is 15 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 1,916 vehicles a day, roughly 5% of them trucks, projected to reach 2,698 by 2039. The structure is 115 ft (35.1 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR 542
CrossesGallup Creek
Location10.5 E JCT SR 547
RouteState Highway 542
Coordinates48.88939, -121.94363
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating84 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length115 ft (35.1 m)
Longest span111 ft (33.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,916 (2023)
Projected traffic2,698 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 542 over Gallup Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is SR 542 over Gallup 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 June 2024.

How much traffic does SR 542 over Gallup Creek carry?

About 1,916 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 542 over Gallup Creek?

The structure is 115 ft (35.1 m) long with a longest span of 111 ft (33.8 m) and a deck 43 ft wide.

Who owns SR 542 over Gallup Creek?

It is owned by the State Highway Agency.