US Bridges

24th Street over Grand Canal

Good

Maricopa County, Arizona · 0.20 MI S of Thomas Road · Structure no. 11577

Built
2020
5 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Concrete
Length
57 ft
1 main span
Daily traffic
26,324
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

24th Street over Grand Canal is a concrete box beam or girders - multiple carrying 24th Street over Grand Canal in Maricopa County, Arizona. It was built in 2020, so it is 5 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 26,324 vehicles a day, roughly 1% of them trucks, projected to reach 26,334 by 2041. The structure is 57 ft (17.5 m) long and 76 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Carries24th Street
CrossesGrand Canal
Location0.20 MI S of Thomas Road
RouteCity Street 0
StateArizona
Coordinates33.4772, -112.0302
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating38.6 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length57 ft (17.5 m)
Longest span55 ft (16.8 m)
Deck width76 ft (23.2 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,324 (2021)
Projected traffic26,334 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 24th Street over Grand Canal built?

It was built in 2020, making it 5 years old in 2025.

What condition is 24th Street over Grand 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 January 2023.

How much traffic does 24th Street over Grand Canal carry?

About 26,324 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is 24th Street over Grand Canal?

The structure is 57 ft (17.5 m) long with a longest span of 55 ft (16.8 m) and a deck 76 ft wide.

Who owns 24th Street over Grand Canal?

It is owned by the City or Municipal Highway Agency.