US Bridges

SR 542 over Razorhone Creek

Good

Whatcom County, Washington · 29.2 E JCT SR 547 · Structure no. 0003017D0000000

Built
1945
80 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
623
2023 count
Owner
State
State Highway Agency

About this bridge

SR 542 over Razorhone Creek is a concrete slab carrying SR 542 over Razorhone Creek in Whatcom County, Washington. It was built in 1945, so it is 80 years old, older 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 623 vehicles a day, roughly 9% of them trucks, projected to reach 877 by 2039. The structure is 25 ft (7.6 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSR 542
CrossesRazorhone Creek
Location29.2 E JCT SR 547
RouteState Highway 542
Coordinates48.85883, -121.65958
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 alignment6: Equal to present minimum criteria
Operating rating61.1 US tons
Inventory rating47.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span23 ft (6.9 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic623 (2023)
Projected traffic877 by 2039
Trucks9%
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$380,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 542 over Razorhone Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is SR 542 over Razorhone 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 August 2024.

How much traffic does SR 542 over Razorhone Creek carry?

About 623 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SR 542 over Razorhone Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (6.9 m) and a deck 33 ft wide.

Who owns SR 542 over Razorhone Creek?

It is owned by the State Highway Agency.