US Bridges

48th Street over I 10

Fair

Maricopa County, Arizona · 1.9 MI W JCT US 60 · Structure no. 01210

Built
1965
60 years old
Condition
Fair
inspected July 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
286 ft
4 main spans
Daily traffic
58,721
2021 count
Owner
State
State Highway Agency

About this bridge

48th Street over I 10 is a steel continuous stringer/multi-beam or girder carrying 48th Street over I 10 in Maricopa County, Arizona. It was built in 1965, so it is 60 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 58,721 vehicles a day, roughly 5% of them trucks, projected to reach 58,731 by 2041. The structure is 286 ft (87.2 m) long and 97 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries48th Street
CrossesI 10
Location1.9 MI W JCT US 60
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.4105, -111.9782
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length286 ft (87.2 m)
Longest span94 ft (28.7 m)
Deck width97 ft (29.6 m)
Roadway width82 ft (25 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic58,721 (2021)
Projected traffic58,731 by 2041
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 48th Street over I 10 built?

It was built in 1965, making it 60 years old in 2025.

What condition is 48th Street over I 10 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 July 2022.

How much traffic does 48th Street over I 10 carry?

About 58,721 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 48th Street over I 10?

The structure is 286 ft (87.2 m) long with a longest span of 94 ft (28.7 m) and a deck 97 ft wide.

Who owns 48th Street over I 10?

It is owned by the State Highway Agency.