US Bridges

Airport Upper Road over Airport Lower Road

Good

Maricopa County, Arizona · Terminal 4 · Structure no. 07981

Built
1991
34 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
450 ft
5 main spans
Daily traffic
13,400
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Airport Upper Road over Airport Lower Road is a prestressed concrete continuous stringer/multi-beam or girder carrying Airport Upper Road over Airport Lower Road in Maricopa County, Arizona. It was built in 1991, so it is 34 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 13,400 vehicles a day, roughly 1% of them trucks, projected to reach 13,410 by 2041. The structure is 450 ft (137.2 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAirport Upper Road
CrossesAirport Lower Road
LocationTerminal 4
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.4352, -111.9958
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.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length450 ft (137.2 m)
Longest span90 ft (27.4 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,400 (2021)
Projected traffic13,410 by 2041
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Airport Upper Road over Airport Lower Road built?

It was built in 1991, making it 34 years old in 2025.

What condition is Airport Upper Road over Airport Lower Road 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 October 2023.

How much traffic does Airport Upper Road over Airport Lower Road carry?

About 13,400 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Airport Upper Road over Airport Lower Road?

The structure is 450 ft (137.2 m) long with a longest span of 90 ft (27.4 m) and a deck 31 ft wide.

Who owns Airport Upper Road over Airport Lower Road?

It is owned by the City or Municipal Highway Agency.