US Bridges

Graham Road over Kid Canal

Fair

Benton County, Washington · 00.10 N SR 12 · Structure no. 081671000000000

Built
1981
44 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
285
2017 count
Owner
County
County Highway Agency

About this bridge

Graham Road over Kid Canal is a prestressed concrete stringer/multi-beam or girder carrying Graham Road over Kid Canal in Benton County, Washington. It was built in 1981, so it is 44 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 285 vehicles a day, roughly 25% of them trucks, projected to reach 300 by 2038. The structure is 52 ft (15.8 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesGraham Road
CrossesKid Canal
Location00.10 N SR 12
RouteCounty Highway 18910
Coordinates46.26383, -119.52743
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.9 US tons
Inventory rating31.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span52 ft (15.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic285 (2017)
Projected traffic300 by 2038
Trucks25%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Graham Road over Kid Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is Graham Road over Kid Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Graham Road over Kid Canal carry?

About 285 vehicles per day (2017 count), of which roughly 25% are trucks.

How long is Graham Road over Kid Canal?

The structure is 52 ft (15.8 m) long with a longest span of 52 ft (15.8 m) and a deck 30 ft wide.

Who owns Graham Road over Kid Canal?

It is owned by the County Highway Agency.