US Bridges

SR B10 over I 10

Fair

Cochise County, Arizona · 6.9 MI East JCT US191 · Structure no. 01230

Built
1967
58 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
289 ft
4 main spans
Daily traffic
239
2022 count
Owner
State
State Highway Agency

About this bridge

SR B10 over I 10 is a steel continuous stringer/multi-beam or girder carrying SR B10 over I 10 in Cochise County, Arizona. It was built in 1967, so it is 58 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 239 vehicles a day, roughly 5% of them trucks, projected to reach 249 by 2042. The structure is 289 ft (88.1 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR B10
CrossesI 10
Location6.9 MI East JCT US191
RouteState Highway 10
CountyCochise County
StateArizona
Coordinates32.329, -109.513
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length289 ft (88.1 m)
Longest span88 ft (26.8 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic239 (2022)
Projected traffic249 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$300,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR B10 over I 10 built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR B10 over I 10 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does SR B10 over I 10 carry?

About 239 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is SR B10 over I 10?

The structure is 289 ft (88.1 m) long with a longest span of 88 ft (26.8 m) and a deck 35 ft wide.

Who owns SR B10 over I 10?

It is owned by the State Highway Agency.