US Bridges

Hess Road over Chandler Canal

Good

Benton County, Washington · 00.10 S Oieh · Structure no. 083591000000000

Built
1952
73 years old, rebuilt 1968
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
71 ft
1 main span
Daily traffic
228
2023 count
Owner
County
County Highway Agency

About this bridge

Hess Road over Chandler Canal is a wood or timber stringer/multi-beam or girder carrying Hess Road over Chandler Canal in Benton County, Washington. It was built in 1952 and reconstructed in 1968, 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 228 vehicles a day, roughly 5% of them trucks, projected to reach 155 by 2038. The structure is 71 ft (21.6 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHess Road
CrossesChandler Canal
Location00.10 S Oieh
RouteCounty Highway 30100
Coordinates46.23478, -119.68493
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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating25.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length71 ft (21.6 m)
Longest span71 ft (21.6 m)
Deck width21 ft (6.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic228 (2023)
Projected traffic155 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hess Road over Chandler Canal built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1968.

What condition is Hess Road over Chandler 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 2023.

How much traffic does Hess Road over Chandler Canal carry?

About 228 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Hess Road over Chandler Canal?

The structure is 71 ft (21.6 m) long with a longest span of 71 ft (21.6 m) and a deck 21 ft wide.

Who owns Hess Road over Chandler Canal?

It is owned by the County Highway Agency.