US Bridges

South Pass RD over Saar Creek

Good

Whatcom County, Washington · 0.07 E Frost RD · Structure no. 088874000000000

Built
2016
9 years old
Condition
Good
inspected November 2024
Type
Slab
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
867
2024 count
Owner
County
County Highway Agency

About this bridge

South Pass RD over Saar Creek is a prestressed concrete slab carrying South Pass RD over Saar Creek in Whatcom County, Washington. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 867 vehicles a day, roughly 2% of them trucks, projected to reach 1,300 by 2046. The structure is 53 ft (16.2 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSouth Pass RD
CrossesSaar Creek
Location0.07 E Frost RD
RouteCounty Highway 66040
Coordinates48.96167, -122.18333
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
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 rating92.8 US tons
Inventory rating56.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length53 ft (16.2 m)
Longest span52 ft (15.7 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic867 (2024)
Projected traffic1,300 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$2.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Pass RD over Saar Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is South Pass RD over Saar 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 2024.

How much traffic does South Pass RD over Saar Creek carry?

About 867 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is South Pass RD over Saar Creek?

The structure is 53 ft (16.2 m) long with a longest span of 52 ft (15.7 m) and a deck 32 ft wide.

Who owns South Pass RD over Saar Creek?

It is owned by the County Highway Agency.