US Bridges

Ramp SE (SR143) over I-10

Good

Maricopa County, Arizona · Junct SR143 and I10 · Structure no. 20234

Built
2023
2 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
893 ft
6 main spans
Daily traffic
97,065
2023 count
Owner
State
State Highway Agency

About this bridge

Ramp SE (SR143) over I-10 is a prestressed concrete continuous stringer/multi-beam or girder carrying Ramp SE (SR143) over I-10 in Maricopa County, Arizona. It was built in 2023, so it is 2 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 97,065 vehicles a day, roughly 8% of them trucks, projected to reach 97,075 by 2042. The structure is 893 ft (272.2 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesRamp SE (SR143)
CrossesI-10
LocationJunct SR143 and I10
RouteState Highway 143
CountyMaricopa County
StateArizona
Coordinates33.4109, -111.9778
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 inspectionSeptember 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

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length893 ft (272.2 m)
Longest span177 ft (54.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97,065 (2023)
Projected traffic97,075 by 2042
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkNon-Interstate 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp SE (SR143) over I-10 built?

It was built in 2023, making it 2 years old in 2025.

What condition is Ramp SE (SR143) over I-10 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 September 2024.

How much traffic does Ramp SE (SR143) over I-10 carry?

About 97,065 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Ramp SE (SR143) over I-10?

The structure is 893 ft (272.2 m) long with a longest span of 177 ft (54.1 m) and a deck 43 ft wide.

Who owns Ramp SE (SR143) over I-10?

It is owned by the State Highway Agency.