US Bridges

SR 51 over Arizona Canal

Good

Maricopa County, Arizona · 5.4 MI N JCT I-10 · Structure no. 02427

Built
1989
36 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
412 ft
4 main spans
Daily traffic
156,106
2022 count
Owner
State
State Highway Agency

About this bridge

SR 51 over Arizona Canal is a prestressed concrete continuous box beam or girders - single or spread carrying SR 51 over Arizona Canal in Maricopa County, Arizona. It was built in 1989, so it is 36 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 156,106 vehicles a day, roughly 7% of them trucks, projected to reach 156,116 by 2042. The structure is 412 ft (125.6 m) long and 156 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesSR 51
CrossesArizona Canal
Location5.4 MI N JCT I-10
RouteState Highway 51
CountyMaricopa County
StateArizona
Coordinates33.5337, -112.0418
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length412 ft (125.6 m)
Longest span149 ft (45.4 m)
Deck width156 ft (47.5 m)
Roadway width153 ft (46.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156,106 (2022)
Projected traffic156,116 by 2042
Trucks7%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 51 over Arizona Canal built?

It was built in 1989, making it 36 years old in 2025.

What condition is SR 51 over Arizona 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 December 2023.

How much traffic does SR 51 over Arizona Canal carry?

About 156,106 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR 51 over Arizona Canal?

The structure is 412 ft (125.6 m) long with a longest span of 149 ft (45.4 m) and a deck 156 ft wide.

Who owns SR 51 over Arizona Canal?

It is owned by the State Highway Agency.