US Bridges

I 10 over Baseline Road

Fair

Maricopa County, Arizona · 0.7 MI S JCT US 60 · Structure no. 02349

Built
1994
31 years old
Condition
Fair
inspected January 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
152 ft
1 main span
Daily traffic
191,894
2021 count
Owner
State
State Highway Agency

About this bridge

I 10 over Baseline Road is a prestressed concrete box beam or girders - single or spread carrying I 10 over Baseline Road in Maricopa County, Arizona. It was built in 1994, so it is 31 years old, younger 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 191,894 vehicles a day, roughly 4% of them trucks, projected to reach 191,904 by 2041. The structure is 152 ft (46.3 m) long and 193 ft wide.

Location

Open in Google Maps
CarriesI 10
CrossesBaseline Road
Location0.7 MI S JCT US 60
RouteInterstate 10
CountyMaricopa County
StateArizona
Coordinates33.37846, -111.968
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating49.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span147 ft (44.8 m)
Deck width193 ft (58.7 m)
Roadway width187 ft (57 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic191,894 (2021)
Projected traffic191,904 by 2041
Trucks4%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 over Baseline Road built?

It was built in 1994, making it 31 years old in 2025.

What condition is I 10 over Baseline Road 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 January 2023.

How much traffic does I 10 over Baseline Road carry?

About 191,894 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is I 10 over Baseline Road?

The structure is 152 ft (46.3 m) long with a longest span of 147 ft (44.8 m) and a deck 193 ft wide.

Who owns I 10 over Baseline Road?

It is owned by the State Highway Agency.