US Bridges

Bronco Butte over Dry Wash

Good

Maricopa County, Arizona · Bronco Butte @ 24th Av · Structure no. 10649

Built
2006
19 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete Continuous
Length
46 ft
4 main spans
Daily traffic
500
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bronco Butte over Dry Wash is a concrete continuous culvert carrying Bronco Butte over Dry Wash in Maricopa County, Arizona. It was built in 2006, so it is 19 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 600 by 2030. The structure is 46 ft (13.9 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBronco Butte
CrossesDry Wash
LocationBronco Butte @ 24th Av
RouteCity Street 0
StateArizona
Coordinates33.7769, -112.1115
Functional classUrban Other Principal 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.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating83.8 US tons
Inventory rating50.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length46 ft (13.9 m)
Longest span10 ft (3 m)
Deck width65 ft (19.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic600 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bronco Butte over Dry Wash built?

It was built in 2006, making it 19 years old in 2025.

What condition is Bronco Butte over Dry 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 December 2022.

How much traffic does Bronco Butte over Dry Wash carry?

About 500 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Bronco Butte over Dry Wash?

The structure is 46 ft (13.9 m) long with a longest span of 10 ft (3 m) and a deck 65 ft wide.

Who owns Bronco Butte over Dry Wash?

It is owned by the City or Municipal Highway Agency.