US Bridges

County Road over Lateral WB 10 Canal

Good

Franklin County, Washington · 0.69 W of Wahluke Road · Structure no. 088533000000000

Built
2013
12 years old
Condition
Good
inspected November 2022
Type
Culvert
Steel
Length
28 ft
1 main span
Daily traffic
402
2022 count
Owner
County
County Highway Agency

About this bridge

County Road over Lateral WB 10 Canal is a steel culvert carrying County Road over Lateral WB 10 Canal in Franklin County, Washington. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 402 vehicles a day, roughly 35% of them trucks, projected to reach 513 by 2042. The structure is 28 ft (8.5 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road
CrossesLateral WB 10 Canal
Location0.69 W of Wahluke Road
RouteCounty Highway 4080
CountyFranklin County
StateWashington
Coordinates46.64911, -119.23348
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width47 ft (14.2 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic402 (2022)
Projected traffic513 by 2042
Trucks35%
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 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 County Road over Lateral WB 10 Canal built?

It was built in 2013, making it 12 years old in 2025.

What condition is County Road over Lateral WB 10 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 November 2022.

How much traffic does County Road over Lateral WB 10 Canal carry?

About 402 vehicles per day (2022 count), of which roughly 35% are trucks.

How long is County Road over Lateral WB 10 Canal?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 47 ft wide.

Who owns County Road over Lateral WB 10 Canal?

It is owned by the County Highway Agency.