US Bridges

SR 303L over New River

Good

Maricopa County, Arizona · 5.8 MI W JCT I-17 · Structure no. 02914

Built
2010
15 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
890 ft
7 main spans
Daily traffic
26,433
2022 count
Owner
State
State Highway Agency

About this bridge

SR 303L over New River is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 303L over New River in Maricopa County, Arizona. It was built in 2010, so it is 15 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 26,433 vehicles a day, roughly 7% of them trucks, projected to reach 26,443 by 2042. The structure is 890 ft (271.3 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR 303L
CrossesNew River
Location5.8 MI W JCT I-17
RouteState Highway 303
CountyMaricopa County
StateArizona
Coordinates33.77933, -112.22602
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 25 or greater
Structure length890 ft (271.3 m)
Longest span127 ft (38.7 m)
Deck width61 ft (18.7 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,433 (2022)
Projected traffic26,443 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 303L over New River built?

It was built in 2010, making it 15 years old in 2025.

What condition is SR 303L over New River 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 February 2023.

How much traffic does SR 303L over New River carry?

About 26,433 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR 303L over New River?

The structure is 890 ft (271.3 m) long with a longest span of 127 ft (38.7 m) and a deck 61 ft wide.

Who owns SR 303L over New River?

It is owned by the State Highway Agency.