US Bridges

Westover Ave over I-40

Fair

Navajo County, Arizona · 17.9 MI E JCT SR 87 · Structure no. 01896

Built
1980
45 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
256 ft
2 main spans
Daily traffic
1,210
2021 count
Owner
State
State Highway Agency

About this bridge

Westover Ave over I-40 is a prestressed concrete continuous box beam or girders - single or spread carrying Westover Ave over I-40 in Navajo County, Arizona. It was built in 1980, so it is 45 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 1,210 vehicles a day, roughly 2% of them trucks, projected to reach 1,220 by 2041. The structure is 256 ft (78 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWestover Ave
CrossesI-40
Location17.9 MI E JCT SR 87
RouteCounty Highway 0
CountyNavajo County
StateArizona
Coordinates34.954, -110.3314
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating38 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length256 ft (78 m)
Longest span127 ft (38.7 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,210 (2021)
Projected traffic1,220 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Westover Ave over I-40 built?

It was built in 1980, making it 45 years old in 2025.

What condition is Westover Ave over I-40 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 June 2023.

How much traffic does Westover Ave over I-40 carry?

About 1,210 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Westover Ave over I-40?

The structure is 256 ft (78 m) long with a longest span of 127 ft (38.7 m) and a deck 31 ft wide.

Who owns Westover Ave over I-40?

It is owned by the State Highway Agency.