US Bridges

SR 143 Ramp NB over SR 143 (hohokam)

Good

Maricopa County, Arizona · 3.00 MI N of JCT I 10 · Structure no. 02158

Built
1990
35 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
386 ft
4 main spans
Daily traffic
5,187
2023 count
Owner
State
State Highway Agency

About this bridge

SR 143 Ramp NB over SR 143 (hohokam) is a prestressed concrete continuous box beam or girders - single or spread carrying SR 143 Ramp NB over SR 143 (hohokam) in Maricopa County, Arizona. It was built in 1990, so it is 35 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 5,187 vehicles a day, roughly 8% of them trucks, projected to reach 5,197 by 2042. The structure is 386 ft (117.7 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 143 Ramp NB
CrossesSR 143 (hohokam)
Location3.00 MI N of JCT I 10
RouteState Highway 143
CountyMaricopa County
StateArizona
Coordinates33.4537, -111.9824
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length386 ft (117.7 m)
Longest span135 ft (41.1 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,187 (2023)
Projected traffic5,197 by 2042
Trucks8%
Lanes on structure1
Traffic directionOne-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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 143 Ramp NB over SR 143 (hohokam) built?

It was built in 1990, making it 35 years old in 2025.

What condition is SR 143 Ramp NB over SR 143 (hohokam) 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 June 2023.

How much traffic does SR 143 Ramp NB over SR 143 (hohokam) carry?

About 5,187 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 143 Ramp NB over SR 143 (hohokam)?

The structure is 386 ft (117.7 m) long with a longest span of 135 ft (41.1 m) and a deck 39 ft wide.

Who owns SR 143 Ramp NB over SR 143 (hohokam)?

It is owned by the State Highway Agency.