US Bridges

Maintenance Road over Potholes Canal

Good

Franklin County, Washington · Ringold Wasteway · Structure no. 11PEC0066

Built
1952
73 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
101 ft
5 main spans
Daily traffic
15
2023 count
Owner
Federal
Bureau of Reclamation

About this bridge

Maintenance Road over Potholes Canal is a concrete continuous slab carrying Maintenance Road over Potholes Canal in Franklin County, Washington. It was built in 1952, so it is 73 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 15 vehicles a day, projected to reach 15 by 2043. The structure is 101 ft (30.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMaintenance Road
CrossesPotholes Canal
LocationRingold Wasteway
CountyFranklin County
StateWashington
Coordinates46.50835, -119.17867
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating33 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length101 ft (30.9 m)
Longest span23 ft (6.9 m)
Deck width24 ft (7.3 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2023)
Projected traffic15 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Reclamation
Maintained byOther Local 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 Maintenance Road over Potholes Canal built?

It was built in 1952, making it 73 years old in 2025.

What condition is Maintenance 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 March 2023.

How much traffic does Maintenance Road over Potholes Canal carry?

About 15 vehicles per day (2023 count).

How long is Maintenance Road over Potholes Canal?

The structure is 101 ft (30.9 m) long with a longest span of 23 ft (6.9 m) and a deck 24 ft wide.

Who owns Maintenance Road over Potholes Canal?

It is owned by the Bureau of Reclamation and maintained by the Other Local Agency.