US Bridges

Road 14.3 NW over West Canal

Good

Grant County, Washington · 14.3 NW 0.1 W of SR 28 · Structure no. 086436000000000

Built
1999
26 years old
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
65
2022 count
Owner
County
County Highway Agency

About this bridge

Road 14.3 NW over West Canal is a prestressed concrete tee beam carrying Road 14.3 NW over West Canal in Grant County, Washington. It was built in 1999, so it is 26 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 65 vehicles a day, roughly 10% of them trucks, projected to reach 113 by 2044. The structure is 110 ft (33.5 m) long and 37 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesRoad 14.3 NW
CrossesWest Canal
Location14.3 NW 0.1 W of SR 28
RouteCounty Highway 37690
Coordinates47.30025, -119.56837
Functional classUrban 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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.1 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length110 ft (33.5 m)
Longest span109 ft (33.2 m)
Deck width37 ft (11.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2022)
Projected traffic113 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$4.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Road 14.3 NW over West Canal built?

It was built in 1999, making it 26 years old in 2025.

What condition is Road 14.3 NW 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 December 2024.

How much traffic does Road 14.3 NW over West Canal carry?

About 65 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Road 14.3 NW over West Canal?

The structure is 110 ft (33.5 m) long with a longest span of 109 ft (33.2 m) and a deck 37 ft wide.

Who owns Road 14.3 NW over West Canal?

It is owned by the County Highway Agency.