US Bridges

I-40 WB over Tanner Wash

Good

Navajo County, Arizona · 14.8 MI W JCT SR 77 · Structure no. 02925

Built
2010
15 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
143 ft
6 main spans
Daily traffic
11,142
2021 count
Owner
State
State Highway Agency

About this bridge

I-40 WB over Tanner Wash is a concrete continuous slab carrying I-40 WB over Tanner Wash in Navajo County, Arizona. It was built in 2010, so it is 15 years old, younger than the Arizona average of 47.8 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 11,142 vehicles a day, roughly 43% of them trucks, projected to reach 11,152 by 2041. The structure is 143 ft (43.6 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-40 WB
CrossesTanner Wash
Location14.8 MI W JCT SR 77
RouteInterstate 40
CountyNavajo County
StateArizona
Coordinates34.9465, -110.2956
Functional classRural Principal Arterial - Interstate

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating80 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span25 ft (7.6 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,142 (2021)
Projected traffic11,152 by 2041
Trucks43%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I-40 WB over Tanner Wash built?

It was built in 2010, making it 15 years old in 2025.

What condition is I-40 WB over Tanner Wash 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 June 2023.

How much traffic does I-40 WB over Tanner Wash carry?

About 11,142 vehicles per day (2021 count), of which roughly 43% are trucks.

How long is I-40 WB over Tanner Wash?

The structure is 143 ft (43.6 m) long with a longest span of 25 ft (7.6 m) and a deck 45 ft wide.

Who owns I-40 WB over Tanner Wash?

It is owned by the State Highway Agency.