US Bridges

Ramp WB C-D over Baseline Road

Fair

Maricopa County, Arizona · 0.7 MI S JCT US 60 · Structure no. 02348

Built
1995
30 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
14,989
2022 count
Owner
State
State Highway Agency

About this bridge

Ramp WB C-D over Baseline Road is a prestressed concrete box beam or girders - single or spread carrying Ramp WB C-D over Baseline Road in Maricopa County, Arizona. It was built in 1995, so it is 30 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 14,989 vehicles a day, roughly 4% of them trucks, projected to reach 14,999 by 2042. The structure is 152 ft (46.3 m) long and 47 ft wide.

CarriesRamp WB C-D
CrossesBaseline Road
Location0.7 MI S JCT US 60
RouteInterstate 10
StateArizona
Coordinates33.37846, -111.9676
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 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 alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating55 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length152 ft (46.3 m)
Longest span147 ft (44.8 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,989 (2022)
Projected traffic14,999 by 2042
Trucks4%
Lanes on structure2
Traffic directionOne-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 Ramp WB C-D over Baseline Road built?

It was built in 1995, making it 30 years old in 2025.

What condition is Ramp WB C-D 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 Ramp WB C-D over Baseline Road carry?

About 14,989 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Ramp WB C-D 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 47 ft wide.

Who owns Ramp WB C-D over Baseline Road?

It is owned by the State Highway Agency.