US Bridges

Old Guide RD over Ten Mile CR

Good

Whatcom County, Washington · 00.1 N W.Hemmi RD · Structure no. 081541000000000

Built
1933
92 years old, rebuilt 1996
Condition
Good
inspected April 2024
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
887
2022 count
Owner
County
County Highway Agency

About this bridge

Old Guide RD over Ten Mile CR is a concrete channel beam carrying Old Guide RD over Ten Mile CR in Whatcom County, Washington. It was built in 1933 and reconstructed in 1996, so it is 92 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 887 vehicles a day, roughly 1% of them trucks, projected to reach 1,250 by 2044. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOld Guide RD
CrossesTen Mile CR
Location00.1 N W.Hemmi RD
RouteCounty Highway 76370
Coordinates48.8637, -122.49699
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 protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating26 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic887 (2022)
Projected traffic1,250 by 2044
Trucks1%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Guide RD over Ten Mile CR built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1996.

What condition is Old Guide RD over Ten Mile CR 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 April 2024.

How much traffic does Old Guide RD over Ten Mile CR carry?

About 887 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Old Guide RD over Ten Mile CR?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Old Guide RD over Ten Mile CR?

It is owned by the County Highway Agency.