US Bridges

Road over Little Sandy Creek

Good

Whatcom County, Washington · MP16.8 on RD 11 · Structure no. 060501000001512

Built
1964
61 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
382
1994 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Little Sandy Creek is a concrete continuous stringer/multi-beam or girder carrying Road over Little Sandy Creek in Whatcom County, Washington. It was built in 1964, so it is 61 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 382 vehicles a day, roughly 20% of them trucks, projected to reach 573 by 2045. The structure is 81 ft (24.8 m) long and 31 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesRoad
CrossesLittle Sandy Creek
LocationMP16.8 on RD 11
RouteFederal Lands Road 11000
Coordinates48.70406, -121.69882
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionSeptember 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 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 rating53 US tons
Inventory rating32.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.8 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic382 (1994)
Projected traffic573 by 2045
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Little Sandy Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Road over Little Sandy 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 September 2024.

How much traffic does Road over Little Sandy Creek carry?

About 382 vehicles per day (1994 count), of which roughly 20% are trucks.

How long is Road over Little Sandy Creek?

The structure is 81 ft (24.8 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns Road over Little Sandy Creek?

It is owned by the U.S. Forest Service.