US Bridges

Mc Casa Grande HWY over Santa Cruz Wash

Good

Pinal County, Arizona · 0.03 MI W of Murphy RD · Structure no. 11513

Built
2016
9 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
90 ft
6 main spans
Daily traffic
5,800
2022 count
Owner
County
County Highway Agency

About this bridge

Mc Casa Grande HWY over Santa Cruz Wash is a concrete continuous culvert carrying Mc Casa Grande HWY over Santa Cruz Wash in Pinal County, Arizona. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,800 vehicles a day, roughly 5% of them trucks, projected to reach 5,810 by 2042. The structure is 90 ft (27.4 m) long and 44 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesMc Casa Grande HWY
CrossesSanta Cruz Wash
Location0.03 MI W of Murphy RD
RouteCounty Highway 0
CountyPinal County
StateArizona
Coordinates32.99221, -111.94327
Functional classRural 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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans6
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span14 ft (4.3 m)
Deck width44 ft (13.4 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,800 (2022)
Projected traffic5,810 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Mc Casa Grande HWY over Santa Cruz Wash built?

It was built in 2016, making it 9 years old in 2025.

What condition is Mc Casa Grande HWY over Santa Cruz Wash 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 Mc Casa Grande HWY over Santa Cruz Wash carry?

About 5,800 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Mc Casa Grande HWY over Santa Cruz Wash?

The structure is 90 ft (27.4 m) long with a longest span of 14 ft (4.3 m) and a deck 44 ft wide.

Who owns Mc Casa Grande HWY over Santa Cruz Wash?

It is owned by the County Highway Agency.