US Bridges

Ironwood Drive over Cap Canal

Good

Pinal County, Arizona · 1.1 MI S JCT US 60 · Structure no. 10364

Built
2008
17 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
296 ft
3 main spans
Daily traffic
32,608
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ironwood Drive over Cap Canal is a prestressed concrete stringer/multi-beam or girder carrying Ironwood Drive over Cap Canal in Pinal County, Arizona. It was built in 2008, so it is 17 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 32,608 vehicles a day, roughly 5% of them trucks, projected to reach 32,618 by 2042. The structure is 296 ft (90.2 m) long and 115 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesIronwood Drive
CrossesCap Canal
Location1.1 MI S JCT US 60
RouteCity Street 0
CountyPinal County
StateArizona
Coordinates33.3686, -111.5631
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length296 ft (90.2 m)
Longest span140 ft (42.7 m)
Deck width115 ft (35.1 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,608 (2023)
Projected traffic32,618 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed19.3 mi (31 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ironwood Drive over Cap Canal built?

It was built in 2008, making it 17 years old in 2025.

What condition is Ironwood Drive 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 October 2023.

How much traffic does Ironwood Drive over Cap Canal carry?

About 32,608 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Ironwood Drive over Cap Canal?

The structure is 296 ft (90.2 m) long with a longest span of 140 ft (42.7 m) and a deck 115 ft wide.

Who owns Ironwood Drive over Cap Canal?

It is owned by the City or Municipal Highway Agency.