US Bridges

Ramp S-W over Drainage CA/RMP99C/99AV

Good

Maricopa County, Arizona · 0.2 MI W JCT SR 101L · Structure no. 02201

Built
1998
27 years old
Condition
Good
inspected February 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
1,140 ft
6 main spans
Daily traffic
60,668
2022 count
Owner
State
State Highway Agency

About this bridge

Ramp S-W over Drainage CA/RMP99C/99AV is a prestressed concrete continuous box beam or girders - single or spread carrying Ramp S-W over Drainage CA/RMP99C/99AV in Maricopa County, Arizona. It was built in 1998, so it is 27 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 60,668 vehicles a day, roughly 6% of them trucks, projected to reach 60,678 by 2042. The structure is 1,140 ft (347.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRamp S-W
CrossesDrainage CA/RMP99C/99AV
Location0.2 MI W JCT SR 101L
RouteInterstate 10
CountyMaricopa County
StateArizona
Coordinates33.4619, -112.2728
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating51 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length1,140 ft (347.5 m)
Longest span205 ft (62.5 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,668 (2022)
Projected traffic60,678 by 2042
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and waterway
Detour if closed3.7 mi (6 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 Ramp S-W over Drainage CA/RMP99C/99AV built?

It was built in 1998, making it 27 years old in 2025.

What condition is Ramp S-W over Drainage CA/RMP99C/99AV 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 February 2023.

How much traffic does Ramp S-W over Drainage CA/RMP99C/99AV carry?

About 60,668 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Ramp S-W over Drainage CA/RMP99C/99AV?

The structure is 1,140 ft (347.5 m) long with a longest span of 205 ft (62.5 m) and a deck 31 ft wide.

Who owns Ramp S-W over Drainage CA/RMP99C/99AV?

It is owned by the State Highway Agency.