US Bridges

Airport Upper Road over T4 WB Frontage Rd.

Good

Maricopa County, Arizona · Terminal 4 · Structure no. 07976

Built
1991
34 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
630 ft
8 main spans
Daily traffic
6,700
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Airport Upper Road over T4 WB Frontage Rd. is a prestressed concrete continuous stringer/multi-beam or girder carrying Airport Upper Road over T4 WB Frontage Rd. 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 6,700 vehicles a day, roughly 1% of them trucks, projected to reach 6,710 by 2039. The structure is 630 ft (192 m) long and 18 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAirport Upper Road
CrossesT4 WB Frontage Rd.
LocationTerminal 4
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.4351, -112.0023
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 evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating72.9 US tons
Inventory rating43.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length630 ft (192 m)
Longest span90 ft (27.4 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,700 (2019)
Projected traffic6,710 by 2039
Trucks1%
Lanes on structure1
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Airport Upper Road over T4 WB Frontage Rd. built?

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

What condition is Airport Upper Road over T4 WB Frontage Rd. 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 T4 WB Frontage Rd. carry?

About 6,700 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Airport Upper Road over T4 WB Frontage Rd.?

The structure is 630 ft (192 m) long with a longest span of 90 ft (27.4 m) and a deck 18 ft wide.

Who owns Airport Upper Road over T4 WB Frontage Rd.?

It is owned by the City or Municipal Highway Agency.