US Bridges

West 10th Avenue over Zintel Canyon

Good

Benton County, Washington · .1 East SR395 · Structure no. 086185000000000

Built
1995
30 years old
Condition
Good
inspected November 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
370 ft
3 main spans
Daily traffic
13,740
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

West 10th Avenue over Zintel Canyon is a prestressed concrete continuous tee beam carrying West 10th Avenue over Zintel Canyon in Benton County, Washington. It was built in 1995, so it is 30 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 13,740 vehicles a day, roughly 5% of them trucks, projected to reach 21,984 by 2042. The structure is 370 ft (112.8 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWest 10th Avenue
CrossesZintel Canyon
Location.1 East SR395
RouteCity Street 610
Coordinates46.19833, -119.14167
Functional classUrban Minor Arterial

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 inspectionNovember 2024
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 rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length370 ft (112.8 m)
Longest span122 ft (37.2 m)
Deck width62 ft (18.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,740 (2022)
Projected traffic21,984 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$22.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was West 10th Avenue over Zintel Canyon built?

It was built in 1995, making it 30 years old in 2025.

What condition is West 10th Avenue over Zintel Canyon 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 2024.

How much traffic does West 10th Avenue over Zintel Canyon carry?

About 13,740 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is West 10th Avenue over Zintel Canyon?

The structure is 370 ft (112.8 m) long with a longest span of 122 ft (37.2 m) and a deck 62 ft wide.

Who owns West 10th Avenue over Zintel Canyon?

It is owned by the City or Municipal Highway Agency.