US Bridges

Shea Blvd over SR 51

Fair

Maricopa County, Arizona · 9.5 MI N JCT I-10 · Structure no. 02223

Built
1996
29 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
192 ft
2 main spans
Daily traffic
24,168
2022 count
Owner
State
State Highway Agency

About this bridge

Shea Blvd over SR 51 is a prestressed concrete continuous box beam or girders - single or spread carrying Shea Blvd over SR 51 in Maricopa County, Arizona. It was built in 1996, so it is 29 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 24,168 vehicles a day, roughly 5% of them trucks, projected to reach 24,178 by 2042. The structure is 192 ft (58.5 m) long and 170 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesShea Blvd
CrossesSR 51
Location9.5 MI N JCT I-10
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.5825, -112.0107
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating49.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span93 ft (28.3 m)
Deck width170 ft (51.8 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic24,168 (2022)
Projected traffic24,178 by 2042
Trucks5%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Shea Blvd over SR 51 built?

It was built in 1996, making it 29 years old in 2025.

What condition is Shea Blvd over SR 51 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 2023.

How much traffic does Shea Blvd over SR 51 carry?

About 24,168 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Shea Blvd over SR 51?

The structure is 192 ft (58.5 m) long with a longest span of 93 ft (28.3 m) and a deck 170 ft wide.

Who owns Shea Blvd over SR 51?

It is owned by the State Highway Agency.