US Bridges

I 17; NB over New River

Fair

Maricopa County, Arizona · 7.4 MI North JCT SR 74 · Structure no. 01290

Built
1968
57 years old, rebuilt 1981
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
347 ft
9 main spans
Daily traffic
22,775
2020 count
Owner
State
State Highway Agency

About this bridge

I 17; NB over New River is a concrete continuous slab carrying I 17; NB over New River in Maricopa County, Arizona. It was built in 1968 and reconstructed in 1981, so it is 57 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 22,775 vehicles a day, roughly 13% of them trucks, projected to reach 22,785 by 2040. The structure is 347 ft (105.8 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 17; NB
CrossesNew River
Location7.4 MI North JCT SR 74
RouteInterstate 17
CountyMaricopa County
StateArizona
Coordinates33.9053, -112.146
Functional classRural Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length347 ft (105.8 m)
Longest span40 ft (12.2 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,775 (2020)
Projected traffic22,785 by 2040
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 17; NB over New River built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1981.

What condition is I 17; NB over New River 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 June 2024.

How much traffic does I 17; NB over New River carry?

About 22,775 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is I 17; NB over New River?

The structure is 347 ft (105.8 m) long with a longest span of 40 ft (12.2 m) and a deck 45 ft wide.

Who owns I 17; NB over New River?

It is owned by the State Highway Agency.