US Bridges

I 10; EB over 27th Avenue

Good

Maricopa County, Arizona · 0.5 MI West JCT I 17 · Structure no. 01956

Built
1986
39 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
136,997
2022 count
Owner
State
State Highway Agency

About this bridge

I 10; EB over 27th Avenue is a prestressed concrete stringer/multi-beam or girder carrying I 10; EB over 27th Avenue in Maricopa County, Arizona. It was built in 1986, so it is 39 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 136,997 vehicles a day, roughly 6% of them trucks, projected to reach 137,007 by 2042. The structure is 130 ft (39.6 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 10; EB
Crosses27th Avenue
Location0.5 MI West JCT I 17
RouteInterstate 10
StateArizona
Coordinates33.46173, -112.11751
Functional classUrban Principal Arterial - Interstate

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span125 ft (38.1 m)
Deck width87 ft (26.6 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deck18 ft (5.5 m)

Traffic and service

Average daily traffic136,997 (2022)
Projected traffic137,007 by 2042
Trucks6%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 10; EB over 27th Avenue built?

It was built in 1986, making it 39 years old in 2025.

What condition is I 10; EB over 27th Avenue 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 March 2023.

How much traffic does I 10; EB over 27th Avenue carry?

About 136,997 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is I 10; EB over 27th Avenue?

The structure is 130 ft (39.6 m) long with a longest span of 125 ft (38.1 m) and a deck 87 ft wide.

Who owns I 10; EB over 27th Avenue?

It is owned by the State Highway Agency.