US Bridges

SR B10 over I-10

Fair

Cochise County, Arizona · 7.9 MI W JCT US 191 North · Structure no. 01229

Built
1968
57 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
377 ft
4 main spans
Daily traffic
1,449
2022 count
Owner
State
State Highway Agency

About this bridge

SR B10 over I-10 is a concrete continuous box beam or girders - single or spread carrying SR B10 over I-10 in Cochise County, Arizona. It was built in 1968, so it is 57 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 1,449 vehicles a day, roughly 3% of them trucks, projected to reach 1,459 by 2042. The structure is 377 ft (114.9 m) long and 42 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesSR B10
CrossesI-10
Location7.9 MI W JCT US 191 North
RouteState Highway 10
CountyCochise County
StateArizona
Coordinates32.3071, -109.7967
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length377 ft (114.9 m)
Longest span125 ft (38.1 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,449 (2022)
Projected traffic1,459 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed16.2 mi (26 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 B10 over I-10 built?

It was built in 1968, making it 57 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 1,449 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is SR B10 over I-10?

The structure is 377 ft (114.9 m) long with a longest span of 125 ft (38.1 m) and a deck 42 ft wide.

Who owns SR B10 over I-10?

It is owned by the State Highway Agency.