US Bridges

G RD SW over West Canal

Good

Grant County, Washington · G SW .2 North of 10 SW · Structure no. 087533000000000

Built
2006
19 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
511
2021 count
Owner
County
County Highway Agency

About this bridge

G RD SW over West Canal is a prestressed concrete stringer/multi-beam or girder carrying G RD SW over West Canal in Grant County, Washington. It was built in 2006, so it is 19 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 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 511 vehicles a day, roughly 19% of them trucks, projected to reach 750 by 2043. The structure is 64 ft (19.5 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesG RD SW
CrossesWest Canal
LocationG SW .2 North of 10 SW
RouteCounty Highway 12710
Coordinates46.94554, -119.64283
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
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 rating63.9 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length64 ft (19.5 m)
Longest span63 ft (19.2 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic511 (2021)
Projected traffic750 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$2.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was G RD SW over West Canal built?

It was built in 2006, making it 19 years old in 2025.

What condition is G RD SW 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 January 2024.

How much traffic does G RD SW over West Canal carry?

About 511 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is G RD SW over West Canal?

The structure is 64 ft (19.5 m) long with a longest span of 63 ft (19.2 m) and a deck 36 ft wide.

Who owns G RD SW over West Canal?

It is owned by the County Highway Agency.