US Bridges

SR 101 NB over Salt River & Ramp W-S

Good

Maricopa County, Arizona · SR 101 / SR 202 Ti · Structure no. 02341

Built
1999
26 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,223 ft
9 main spans
Daily traffic
170,971
2023 count
Owner
State
State Highway Agency

About this bridge

SR 101 NB over Salt River & Ramp W-S is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 101 NB over Salt River & Ramp W-S in Maricopa County, Arizona. It was built in 1999, so it is 26 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 170,971 vehicles a day, roughly 6% of them trucks, projected to reach 170,981 by 2042. The structure is 1,223 ft (372.8 m) long and 85 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR 101 NB
CrossesSalt River & Ramp W-S
LocationSR 101 / SR 202 Ti
RouteState Highway 101
CountyMaricopa County
StateArizona
Coordinates33.4361, -111.8908
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length1,223 ft (372.8 m)
Longest span140 ft (42.7 m)
Deck width85 ft (26 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170,971 (2023)
Projected traffic170,981 by 2042
Trucks6%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 101 NB over Salt River & Ramp W-S built?

It was built in 1999, making it 26 years old in 2025.

What condition is SR 101 NB over Salt River & Ramp W-S 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 November 2024.

How much traffic does SR 101 NB over Salt River & Ramp W-S carry?

About 170,971 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SR 101 NB over Salt River & Ramp W-S?

The structure is 1,223 ft (372.8 m) long with a longest span of 140 ft (42.7 m) and a deck 85 ft wide.

Who owns SR 101 NB over Salt River & Ramp W-S?

It is owned by the State Highway Agency.