US Bridges

SR B10;E San Simon over I 10

Fair

Cochise County, Arizona · 26.4 MI East JCT US 191 · Structure no. 01169

Built
1967
58 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
296 ft
4 main spans
Daily traffic
466
2022 count
Owner
State
State Highway Agency

About this bridge

SR B10;E San Simon over I 10 is a steel continuous stringer/multi-beam or girder carrying SR B10;E San Simon 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 466 vehicles a day, roughly 10% of them trucks, projected to reach 476 by 2042. The structure is 296 ft (90.2 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSR B10;E San Simon
CrossesI 10
Location26.4 MI East JCT US 191
RouteState Highway 10
CountyCochise County
StateArizona
Coordinates32.257, -109.1948
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 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 length296 ft (90.2 m)
Longest span90 ft (27.4 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic466 (2022)
Projected traffic476 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 B10;E San Simon over I 10 built?

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

What condition is SR B10;E San Simon 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;E San Simon over I 10 carry?

About 466 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SR B10;E San Simon over I 10?

The structure is 296 ft (90.2 m) long with a longest span of 90 ft (27.4 m) and a deck 35 ft wide.

Who owns SR B10;E San Simon over I 10?

It is owned by the State Highway Agency.