US Bridges

I 40; WB over Williams Airport RD

Fair

Coconino County, Arizona · 2.0 MI W of JCT SR 64 · Structure no. 01906

Built
1982
43 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
115 ft
1 main span
Daily traffic
10,425
2022 count
Owner
State
State Highway Agency

About this bridge

I 40; WB over Williams Airport RD is a prestressed concrete box beam or girders - single or spread carrying I 40; WB over Williams Airport RD in Coconino County, Arizona. It was built in 1982, so it is 43 years old, younger than the Arizona average of 47.8 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 10,425 vehicles a day, roughly 24% of them trucks, projected to reach 10,435 by 2042. The structure is 115 ft (35.1 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 40; WB
CrossesWilliams Airport RD
Location2.0 MI W of JCT SR 64
RouteInterstate 40
CountyCoconino County
StateArizona
Coordinates35.2624, -112.1865
Functional classRural Principal Arterial - Interstate

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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating47 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span112 ft (34.1 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deck30 ft (9.1 m)

Traffic and service

Average daily traffic10,425 (2022)
Projected traffic10,435 by 2042
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 40; WB over Williams Airport RD built?

It was built in 1982, making it 43 years old in 2025.

What condition is I 40; WB over Williams Airport RD 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 August 2024.

How much traffic does I 40; WB over Williams Airport RD carry?

About 10,425 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is I 40; WB over Williams Airport RD?

The structure is 115 ft (35.1 m) long with a longest span of 112 ft (34.1 m) and a deck 45 ft wide.

Who owns I 40; WB over Williams Airport RD?

It is owned by the State Highway Agency.