US Bridges

SB 51-WB 10/EB 202 over SB Mcdowell on Ramp

Good

Maricopa County, Arizona · At JCT I 10 Sl 202 SR 5 · Structure no. 02124

Built
1990
35 years old, rebuilt 1996
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
363 ft
3 main spans
Daily traffic
44,716
2021 count
Owner
State
State Highway Agency

About this bridge

SB 51-WB 10/EB 202 over SB Mcdowell on Ramp is a prestressed concrete continuous box beam or girders - single or spread carrying SB 51-WB 10/EB 202 over SB Mcdowell on Ramp in Maricopa County, Arizona. It was built in 1990 and reconstructed in 1996, so it is 35 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 44,716 vehicles a day, roughly 7% of them trucks, projected to reach 44,726 by 2041. The structure is 363 ft (110.6 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSB 51-WB 10/EB 202
CrossesSB Mcdowell on Ramp
LocationAt JCT I 10 Sl 202 SR 5
RouteInterstate 10
StateArizona
Coordinates33.4636, -112.0387
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.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length363 ft (110.6 m)
Longest span150 ft (45.7 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deck19 ft (5.7 m)

Traffic and service

Average daily traffic44,716 (2021)
Projected traffic44,726 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SB 51-WB 10/EB 202 over SB Mcdowell on Ramp built?

It was built in 1990, making it 35 years old in 2025. It was reconstructed in 1996.

What condition is SB 51-WB 10/EB 202 over SB Mcdowell on Ramp 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 December 2024.

How much traffic does SB 51-WB 10/EB 202 over SB Mcdowell on Ramp carry?

About 44,716 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SB 51-WB 10/EB 202 over SB Mcdowell on Ramp?

The structure is 363 ft (110.6 m) long with a longest span of 150 ft (45.7 m) and a deck 39 ft wide.

Who owns SB 51-WB 10/EB 202 over SB Mcdowell on Ramp?

It is owned by the State Highway Agency.