US Bridges

Shea Blvd over Cap Canal

Fair

Maricopa County, Arizona · 0.3 MI W. of 124th Strt · Structure no. 09754

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
147 ft
2 main spans
Daily traffic
60,972
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Shea Blvd over Cap Canal is a prestressed concrete stringer/multi-beam or girder carrying Shea Blvd over Cap Canal in Maricopa County, Arizona. It was built in 1980, so it is 45 years old, younger 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 60,972 vehicles a day, roughly 5% of them trucks, projected to reach 60,982 by 2042. The structure is 147 ft (44.8 m) long and 115 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesShea Blvd
CrossesCap Canal
Location0.3 MI W. of 124th Strt
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.58244, -111.81819
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length147 ft (44.8 m)
Longest span73 ft (22.3 m)
Deck width115 ft (35.1 m)
Roadway width97 ft (29.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,972 (2023)
Projected traffic60,982 by 2042
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Shea Blvd over Cap Canal built?

It was built in 1980, making it 45 years old in 2025.

What condition is Shea Blvd over Cap 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 December 2024.

How much traffic does Shea Blvd over Cap Canal carry?

About 60,972 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Shea Blvd over Cap Canal?

The structure is 147 ft (44.8 m) long with a longest span of 73 ft (22.3 m) and a deck 115 ft wide.

Who owns Shea Blvd over Cap Canal?

It is owned by the City or Municipal Highway Agency.