US Bridges

Maintenance Road over West Canal

GoodPosted for load

Grant County, Washington · West Canal · Structure no. 11WC0054

Built
1956
69 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
30
2023 count
Owner
Federal
Bureau of Reclamation

About this bridge

Maintenance Road over West Canal is a concrete slab carrying Maintenance Road over West Canal in Grant County, Washington. It was built in 1956, so it is 69 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, projected to reach 30 by 2043. The structure is 23 ft (6.9 m) long and 18 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMaintenance Road
CrossesWest Canal
LocationWest Canal
CountyGrant County
StateWashington
Coordinates46.94708, -119.65192
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating33.5 US tons
Inventory rating20.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (6.9 m)
Longest span20 ft (6.1 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic30 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 West Canal built?

It was built in 1956, making it 69 years old in 2025.

What condition is Maintenance Road over West 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 February 2023.

How much traffic does Maintenance Road over West Canal carry?

About 30 vehicles per day (2023 count).

How long is Maintenance Road over West Canal?

The structure is 23 ft (6.9 m) long with a longest span of 20 ft (6.1 m) and a deck 18 ft wide.

Who owns Maintenance Road over West Canal?

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