US Bridges

SR B10;W San Simon over I 10

Fair

Cochise County, Arizona · 22.9 MI East JCT US 191 · Structure no. 01164

Built
1967
58 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
312 ft
4 main spans
Daily traffic
1,103
2022 count
Owner
State
State Highway Agency

About this bridge

SR B10;W San Simon over I 10 is a steel continuous stringer/multi-beam or girder carrying SR B10;W 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 1,103 vehicles a day, roughly 10% of them trucks, projected to reach 1,113 by 2042. The structure is 312 ft (95.1 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR B10;W San Simon
CrossesI 10
Location22.9 MI East JCT US 191
RouteState Highway 10
CountyCochise County
StateArizona
Coordinates32.2716, -109.25
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length312 ft (95.1 m)
Longest span95 ft (29 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,103 (2022)
Projected traffic1,113 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 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;W San Simon over I 10 built?

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

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

About 1,103 vehicles per day (2022 count), of which roughly 10% are trucks.

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

The structure is 312 ft (95.1 m) long with a longest span of 95 ft (29 m) and a deck 35 ft wide.

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

It is owned by the State Highway Agency.