US Bridges

County Road over Potholes Canal

Good

Franklin County, Washington · 1.51 W Glade N 01 · Structure no. 087035000000000

Built
2003
22 years old
Condition
Good
inspected December 2022
Type
Tee Beam
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
165
2022 count
Owner
County
County Highway Agency

About this bridge

County Road over Potholes Canal is a prestressed concrete tee beam carrying County Road over Potholes Canal in Franklin County, Washington. It was built in 2003, so it is 22 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 165 vehicles a day, roughly 40% of them trucks, projected to reach 250 by 2042. The structure is 110 ft (33.5 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesPotholes Canal
Location1.51 W Glade N 01
RouteCounty Highway 6360
CountyFranklin County
StateWashington
Coordinates46.51977, -119.16353
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length110 ft (33.5 m)
Longest span110 ft (33.5 m)
Deck width29 ft (8.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (2022)
Projected traffic250 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Potholes Canal built?

It was built in 2003, making it 22 years old in 2025.

What condition is County Road over Potholes Canal 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 December 2022.

How much traffic does County Road over Potholes Canal carry?

About 165 vehicles per day (2022 count), of which roughly 40% are trucks.

How long is County Road over Potholes Canal?

The structure is 110 ft (33.5 m) long with a longest span of 110 ft (33.5 m) and a deck 29 ft wide.

Who owns County Road over Potholes Canal?

It is owned by the County Highway Agency.