US Bridges

19th Avenue over Grand Canal

Fair

Maricopa County, Arizona · 0.31 MI N of Indian Schl · Structure no. 09175

Built
1946
79 years old, rebuilt 1961
Condition
Fair
inspected January 2023
Type
Slab
Concrete Continuous
Length
53 ft
3 main spans
Daily traffic
21,784
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

19th Avenue over Grand Canal is a concrete continuous slab carrying 19th Avenue over Grand Canal in Maricopa County, Arizona. It was built in 1946 and reconstructed in 1961, so it is 79 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 21,784 vehicles a day, roughly 1% of them trucks, projected to reach 21,794 by 2041. The structure is 53 ft (16.2 m) long and 76 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries19th Avenue
CrossesGrand Canal
Location0.31 MI N of Indian Schl
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.4996, -112.0999
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span17 ft (5.2 m)
Deck width76 ft (23.2 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,784 (2021)
Projected traffic21,794 by 2041
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 19th Avenue over Grand Canal built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1961.

What condition is 19th Avenue over Grand Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.

How much traffic does 19th Avenue over Grand Canal carry?

About 21,784 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is 19th Avenue over Grand Canal?

The structure is 53 ft (16.2 m) long with a longest span of 17 ft (5.2 m) and a deck 76 ft wide.

Who owns 19th Avenue over Grand Canal?

It is owned by the City or Municipal Highway Agency.