US Bridges

SR 186 over I-10

Good

Cochise County, Arizona · 8.9 MI E JCT US 191 S · Structure no. 02806

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
291 ft
2 main spans
Daily traffic
1,623
2022 count
Owner
State
State Highway Agency

About this bridge

SR 186 over I-10 is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 186 over I-10 in Cochise County, Arizona. It was built in 2007, so it is 18 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 1,623 vehicles a day, roughly 10% of them trucks, projected to reach 1,633 by 2042. The structure is 291 ft (88.7 m) long and 106 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSR 186
CrossesI-10
Location8.9 MI E JCT US 191 S
RouteState Highway 186
CountyCochise County
StateArizona
Coordinates32.2662, -109.8435
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length291 ft (88.7 m)
Longest span142 ft (43.3 m)
Deck width106 ft (32.3 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,623 (2022)
Projected traffic1,633 by 2042
Trucks10%
Lanes on structure6
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 186 over I-10 built?

It was built in 2007, making it 18 years old in 2025.

What condition is SR 186 over I-10 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 September 2023.

How much traffic does SR 186 over I-10 carry?

About 1,623 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SR 186 over I-10?

The structure is 291 ft (88.7 m) long with a longest span of 142 ft (43.3 m) and a deck 106 ft wide.

Who owns SR 186 over I-10?

It is owned by the State Highway Agency.