US Bridges

County Arterial over Potholes East Canal

Good

Franklin County, Washington · 0.45 South of JCT SR17 · Structure no. 086642000000000

Built
2001
24 years old
Condition
Good
inspected November 2022
Type
Tee Beam
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
267
2020 count
Owner
County
County Highway Agency

About this bridge

County Arterial over Potholes East Canal is a prestressed concrete tee beam carrying County Arterial over Potholes East Canal in Franklin County, Washington. It was built in 2001, so it is 24 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 267 vehicles a day, roughly 44% of them trucks, projected to reach 420 by 2040. The structure is 98 ft (29.9 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCounty Arterial
CrossesPotholes East Canal
Location0.45 South of JCT SR17
RouteCounty Highway 3070
CountyFranklin County
StateWashington
Coordinates46.73329, -119.09
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 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 rating45.3 US tons
Inventory rating30.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length98 ft (29.9 m)
Longest span94 ft (28.7 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic267 (2020)
Projected traffic420 by 2040
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Arterial over Potholes East Canal built?

It was built in 2001, making it 24 years old in 2025.

What condition is County Arterial over Potholes East 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 November 2022.

How much traffic does County Arterial over Potholes East Canal carry?

About 267 vehicles per day (2020 count), of which roughly 44% are trucks.

How long is County Arterial over Potholes East Canal?

The structure is 98 ft (29.9 m) long with a longest span of 94 ft (28.7 m) and a deck 29 ft wide.

Who owns County Arterial over Potholes East Canal?

It is owned by the County Highway Agency.