US Bridges

Mingus Road over White Spar Wash

Good

Maricopa County, Arizona · 0.2 MI E/27th Ave · Structure no. 10778

Built
2008
17 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete Continuous
Length
42 ft
2 main spans
Daily traffic
245
2020 count
Owner
County
County Highway Agency

About this bridge

Mingus Road over White Spar Wash is a concrete continuous culvert carrying Mingus Road over White Spar Wash in Maricopa 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 245 vehicles a day, projected to reach 255 by 2040. The structure is 42 ft (12.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMingus Road
CrossesWhite Spar Wash
Location0.2 MI E/27th Ave
RouteCounty Highway 0
CountyMaricopa County
StateArizona
Coordinates33.92922, -112.11403
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 36 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic245 (2020)
Projected traffic255 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Mingus Road over White Spar Wash built?

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

What condition is Mingus Road over White Spar 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 Mingus Road over White Spar Wash carry?

About 245 vehicles per day (2020 count).

How long is Mingus Road over White Spar Wash?

The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns Mingus Road over White Spar Wash?

It is owned by the County Highway Agency.