US Bridges

Kenilworth Road over Florence-Casa Grande Cnl

Good

Pinal County, Arizona · 5.8 MI E JCT SR 87 · Structure no. 09061

Built
1961
64 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
95 ft
3 main spans
Daily traffic
1,709
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kenilworth Road over Florence-Casa Grande Cnl is a concrete continuous slab carrying Kenilworth Road over Florence-Casa Grande Cnl in Pinal County, Arizona. It was built in 1961, so it is 64 years old, older 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 1,709 vehicles a day, roughly 5% of them trucks, projected to reach 1,719 by 2042. The structure is 95 ft (29 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesKenilworth Road
CrossesFlorence-Casa Grande Cnl
Location5.8 MI E JCT SR 87
RouteCity Street 0
CountyPinal County
StateArizona
Coordinates32.97353, -111.42447
Functional classRural Major Collector

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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length95 ft (29 m)
Longest span35 ft (10.7 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck18 ft (5.5 m)

Traffic and service

Average daily traffic1,709 (2022)
Projected traffic1,719 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$1,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kenilworth Road over Florence-Casa Grande Cnl built?

It was built in 1961, making it 64 years old in 2025.

What condition is Kenilworth Road over Florence-Casa Grande Cnl 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 2024.

How much traffic does Kenilworth Road over Florence-Casa Grande Cnl carry?

About 1,709 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Kenilworth Road over Florence-Casa Grande Cnl?

The structure is 95 ft (29 m) long with a longest span of 35 ft (10.7 m) and a deck 31 ft wide.

Who owns Kenilworth Road over Florence-Casa Grande Cnl?

It is owned by the City or Municipal Highway Agency.