US Bridges

County Road over Potholes East Canal

Poor

Franklin County, Washington · 2.18 NE JCT 903 · Structure no. 083663000000000

Built
1955
70 years old, rebuilt 1967
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

County Road over Potholes East Canal is a prestressed concrete stringer/multi-beam or girder carrying County Road over Potholes East Canal in Franklin County, Washington. It was built in 1955 and reconstructed in 1967, so it is 70 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 60 vehicles a day, roughly 37% of them trucks, projected to reach 90 by 2042. The structure is 32 ft (9.8 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty Road
CrossesPotholes East Canal
Location2.18 NE JCT 903
RouteCounty Highway 9440
Coordinates46.41526, -119.17584
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating23.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic90 by 2042
Trucks37%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road over Potholes East Canal built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1967.

What condition is County Road over Potholes East Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

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

About 60 vehicles per day (2022 count), of which roughly 37% are trucks.

How long is County Road over Potholes East Canal?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns County Road over Potholes East Canal?

It is owned by the County Highway Agency.