US Bridges

SR 85 over Lewis Prison Road

Good

Maricopa County, Arizona · 16.1 MI S of I-10 · Structure no. 02680

Built
2005
20 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
138 ft
1 main span
Daily traffic
9,283
2023 count
Owner
State
State Highway Agency

About this bridge

SR 85 over Lewis Prison Road is a prestressed concrete stringer/multi-beam or girder carrying SR 85 over Lewis Prison Road in Maricopa County, Arizona. It was built in 2005, so it is 20 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 9,283 vehicles a day, roughly 14% of them trucks, projected to reach 9,293 by 2042. The structure is 138 ft (42.1 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesSR 85
CrossesLewis Prison Road
Location16.1 MI S of I-10
RouteState Highway 85
CountyMaricopa County
StateArizona
Coordinates33.19632, -112.65044
Functional classRural Principal Arterial - Other

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.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length138 ft (42.1 m)
Longest span132 ft (40.2 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,283 (2023)
Projected traffic9,293 by 2042
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 SR 85 over Lewis Prison Road built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR 85 over Lewis Prison Road 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 May 2023.

How much traffic does SR 85 over Lewis Prison Road carry?

About 9,283 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 85 over Lewis Prison Road?

The structure is 138 ft (42.1 m) long with a longest span of 132 ft (40.2 m) and a deck 45 ft wide.

Who owns SR 85 over Lewis Prison Road?

It is owned by the State Highway Agency.