US Bridges

Northern Parkway over Agua Fria River

Good

Maricopa County, Arizona · 0.4 MI E of El Mirage · Structure no. 11353

Built
2020
5 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
587 ft
5 main spans
Daily traffic
22,700
2022 count
Owner
County
County Highway Agency

About this bridge

Northern Parkway over Agua Fria River is a prestressed concrete continuous stringer/multi-beam or girder carrying Northern Parkway over Agua Fria River in Maricopa County, Arizona. It was built in 2020, so it is 5 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 22,700 vehicles a day, roughly 20% of them trucks, projected to reach 22,710 by 2042. The structure is 587 ft (178.9 m) long and 122 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNorthern Parkway
CrossesAgua Fria River
Location0.4 MI E of El Mirage
RouteCounty Highway 0
StateArizona
Coordinates33.5508, -112.3171
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 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 rating110.1 US tons
Inventory rating48.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length587 ft (178.9 m)
Longest span118 ft (36 m)
Deck width122 ft (37.1 m)
Roadway width116 ft (35.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,700 (2022)
Projected traffic22,710 by 2042
Trucks20%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Northern Parkway over Agua Fria River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Northern Parkway over Agua Fria 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 November 2023.

How much traffic does Northern Parkway over Agua Fria River carry?

About 22,700 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Northern Parkway over Agua Fria River?

The structure is 587 ft (178.9 m) long with a longest span of 118 ft (36 m) and a deck 122 ft wide.

Who owns Northern Parkway over Agua Fria River?

It is owned by the County Highway Agency.