US Bridges

303L SB over Cactus Road

Good

Maricopa County, Arizona · 9.3 MI N I-10 · Structure no. 02990

Built
2014
11 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
217 ft
1 main span
Daily traffic
26,577
2021 count
Owner
State
State Highway Agency

About this bridge

303L SB over Cactus Road is a prestressed concrete box beam or girders - single or spread carrying 303L SB over Cactus Road in Maricopa County, Arizona. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 26,577 vehicles a day, roughly 7% of them trucks, projected to reach 26,587 by 2041. The structure is 217 ft (66.1 m) long and 86 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries303L SB
CrossesCactus Road
Location9.3 MI N I-10
RouteState Highway 303
CountyMaricopa County
StateArizona
Coordinates33.5949, -112.4183
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating70 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length217 ft (66.1 m)
Longest span210 ft (64 m)
Deck width86 ft (26.3 m)
Roadway width83 ft (25.4 m)
Vertical clearance over deck30 ft (9.1 m)

Traffic and service

Average daily traffic26,577 (2021)
Projected traffic26,587 by 2041
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 303L SB over Cactus Road built?

It was built in 2014, making it 11 years old in 2025.

What condition is 303L SB over Cactus Road 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 October 2024.

How much traffic does 303L SB over Cactus Road carry?

About 26,577 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is 303L SB over Cactus Road?

The structure is 217 ft (66.1 m) long with a longest span of 210 ft (64 m) and a deck 86 ft wide.

Who owns 303L SB over Cactus Road?

It is owned by the State Highway Agency.