US Bridges

IRR SR 85 over Rio Cornez Wash

Good

Pima County, Arizona · 5.1 MI N JCT SR 86 · Structure no. 06733

Built
1981
44 years old
Condition
Good
inspected October 2021
Type
Culvert
Concrete Continuous
Length
44 ft
5 main spans
Daily traffic
2,671
2020 count
Owner
State
State Highway Agency

About this bridge

IRR SR 85 over Rio Cornez Wash is a concrete continuous culvert carrying IRR SR 85 over Rio Cornez Wash in Pima County, Arizona. It was built in 1981, so it is 44 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 2,671 vehicles a day, roughly 13% of them trucks, projected to reach 2,681 by 2040. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesIRR SR 85
CrossesRio Cornez Wash
Location5.1 MI N JCT SR 86
RouteState Highway 85
CountyPima County
StateArizona
Coordinates32.3309, -112.7846
Functional classRural 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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,671 (2020)
Projected traffic2,681 by 2040
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR SR 85 over Rio Cornez Wash built?

It was built in 1981, making it 44 years old in 2025.

What condition is IRR SR 85 over Rio Cornez Wash 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 October 2021.

How much traffic does IRR SR 85 over Rio Cornez Wash carry?

About 2,671 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is IRR SR 85 over Rio Cornez Wash?

The structure is 44 ft (13.4 m) long with a longest span of 8 ft (2.4 m).

Who owns IRR SR 85 over Rio Cornez Wash?

It is owned by the State Highway Agency.