US Bridges

303L over El Mirage RD

Good

Maricopa County, Arizona · Int 303L& El Mirage RD · Structure no. 02967

Built
2015
10 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
246 ft
2 main spans
Daily traffic
17,862
2021 count
Owner
State
State Highway Agency

About this bridge

303L over El Mirage RD is a prestressed concrete continuous stringer/multi-beam or girder carrying 303L over El Mirage RD in Maricopa County, Arizona. It was built in 2015, so it is 10 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 17,862 vehicles a day, roughly 7% of them trucks, projected to reach 17,872 by 2041. The structure is 246 ft (75 m) long and 175 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries303L
CrossesEl Mirage RD
LocationInt 303L& El Mirage RD
RouteState Highway 303
StateArizona
Coordinates33.6984, -112.3345
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 rating36 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length246 ft (75 m)
Longest span120 ft (36.6 m)
Deck width175 ft (53.2 m)
Roadway width166 ft (50.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,862 (2021)
Projected traffic17,872 by 2041
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 303L over El Mirage RD built?

It was built in 2015, making it 10 years old in 2025.

What condition is 303L over El Mirage RD 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 over El Mirage RD carry?

About 17,862 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is 303L over El Mirage RD?

The structure is 246 ft (75 m) long with a longest span of 120 ft (36.6 m) and a deck 175 ft wide.

Who owns 303L over El Mirage RD?

It is owned by the State Highway Agency.