US Bridges

56th Street over Dry Wash

Good

Maricopa County, Arizona · 0.17 MI N of Dove Valley · Structure no. 10419

Built
2003
22 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
53 ft
6 main spans
Daily traffic
1,221
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

56th Street over Dry Wash is a concrete culvert carrying 56th Street over Dry Wash in Maricopa County, Arizona. It was built in 2003, so it is 22 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 1,221 vehicles a day, roughly 1% of them trucks, projected to reach 1,231 by 2042. The structure is 53 ft (16.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Carries56th Street
CrossesDry Wash
Location0.17 MI N of Dove Valley
RouteCity Street 0
StateArizona
Coordinates33.7871, -111.9607
Functional classUrban Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating97.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,221 (2022)
Projected traffic1,231 by 2042
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 56th Street over Dry Wash built?

It was built in 2003, making it 22 years old in 2025.

What condition is 56th Street 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 February 2023.

How much traffic does 56th Street over Dry Wash carry?

About 1,221 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is 56th Street over Dry Wash?

The structure is 53 ft (16.2 m) long with a longest span of 8 ft (2.4 m).

Who owns 56th Street over Dry Wash?

It is owned by the City or Municipal Highway Agency.