US Bridges

Baseline RD over SR 101L

Good

Maricopa County, Arizona · 11 MI E/I 10 - 0.4 S/60 · Structure no. 02102

Built
1997
28 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
239 ft
2 main spans
Daily traffic
24,215
2023 count
Owner
State
State Highway Agency

About this bridge

Baseline RD over SR 101L is a prestressed concrete continuous box beam or girders - single or spread carrying Baseline RD over SR 101L in Maricopa County, Arizona. It was built in 1997, so it is 28 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 24,215 vehicles a day, roughly 15% of them trucks, projected to reach 24,225 by 2042. The structure is 239 ft (72.8 m) long and 129 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBaseline RD
CrossesSR 101L
Location11 MI E/I 10 - 0.4 S/60
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.3785, -111.893
Functional classUrban Minor Arterial

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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length239 ft (72.8 m)
Longest span117 ft (35.7 m)
Deck width129 ft (39.2 m)
Roadway width112 ft (34.1 m)
Vertical clearance over deck27 ft (8.4 m)

Traffic and service

Average daily traffic24,215 (2023)
Projected traffic24,225 by 2042
Trucks15%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Baseline RD over SR 101L built?

It was built in 1997, making it 28 years old in 2025.

What condition is Baseline RD over SR 101L 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 January 2025.

How much traffic does Baseline RD over SR 101L carry?

About 24,215 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Baseline RD over SR 101L?

The structure is 239 ft (72.8 m) long with a longest span of 117 ft (35.7 m) and a deck 129 ft wide.

Who owns Baseline RD over SR 101L?

It is owned by the State Highway Agency.