US Bridges

Airport Road over Cap Canal

Good

Pinal County, Arizona · 0.5 MI S Cactus Forest RD · Structure no. 08840

Built
1985
40 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
160 ft
2 main spans
Daily traffic
937
2020 count
Owner
County
County Highway Agency

About this bridge

Airport Road over Cap Canal is a prestressed concrete continuous stringer/multi-beam or girder carrying Airport Road over Cap Canal in Pinal County, Arizona. It was built in 1985, so it is 40 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 937 vehicles a day, roughly 5% of them trucks, projected to reach 947 by 2040. The structure is 160 ft (48.8 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesAirport Road
CrossesCap Canal
Location0.5 MI S Cactus Forest RD
RouteCounty Highway 0
CountyPinal County
StateArizona
Coordinates32.9615, -111.4217
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length160 ft (48.8 m)
Longest span76 ft (23.2 m)
Deck width35 ft (10.6 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic937 (2020)
Projected traffic947 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Airport Road over Cap Canal built?

It was built in 1985, making it 40 years old in 2025.

What condition is Airport Road over Cap Canal 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 February 2024.

How much traffic does Airport Road over Cap Canal carry?

About 937 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Airport Road over Cap Canal?

The structure is 160 ft (48.8 m) long with a longest span of 76 ft (23.2 m) and a deck 35 ft wide.

Who owns Airport Road over Cap Canal?

It is owned by the County Highway Agency.