US Bridges

King Tull Road over Svid Canal

Fair

Benton County, Washington · 0.088 E County Line · Structure no. 086352000000000

Built
1956
69 years old, rebuilt 1979
Condition
Fair
inspected February 2024
Type
Channel Beam
Concrete
Length
52 ft
3 main spans
Daily traffic
661
2018 count
Owner
County
County Highway Agency

About this bridge

King Tull Road over Svid Canal is a concrete channel beam carrying King Tull Road over Svid Canal in Benton County, Washington. It was built in 1956 and reconstructed in 1979, so it is 69 years old, older 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 661 vehicles a day, roughly 10% of them trucks, projected to reach 700 by 2038. The structure is 52 ft (15.8 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKing Tull Road
CrossesSvid Canal
Location0.088 E County Line
RouteCounty Highway 20460
CountyBenton County
StateWashington
Coordinates46.24383, -119.87151
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans3
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span31 ft (9.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic661 (2018)
Projected traffic700 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$741,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was King Tull Road over Svid Canal built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1979.

What condition is King Tull Road over Svid 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 King Tull Road over Svid Canal carry?

About 661 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is King Tull Road over Svid Canal?

The structure is 52 ft (15.8 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns King Tull Road over Svid Canal?

It is owned by the County Highway Agency.