US Bridges

Stewart RD over I-10

Fair

Cochise County, Arizona · 8.1 MI E JCT US 191 North · Structure no. 01228

Built
1968
57 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
241 ft
2 main spans
Daily traffic
363
2022 count
Owner
State
State Highway Agency

About this bridge

Stewart RD over I-10 is a concrete continuous box beam or girders - single or spread carrying Stewart RD 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 363 vehicles a day, roughly 10% of them trucks, projected to reach 373 by 2042. The structure is 241 ft (73.5 m) long and 31 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesStewart RD
CrossesI-10
Location8.1 MI E JCT US 191 North
RouteCounty Highway 0
CountyCochise County
StateArizona
Coordinates32.3058, -109.7994
Functional classRural Local

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 rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length241 ft (73.5 m)
Longest span118 ft (36 m)
Deck width31 ft (9.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic363 (2022)
Projected traffic373 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.2 mi (18 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 Stewart RD over I-10 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Stewart RD 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 Stewart RD over I-10 carry?

About 363 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Stewart RD over I-10?

The structure is 241 ft (73.5 m) long with a longest span of 118 ft (36 m) and a deck 31 ft wide.

Who owns Stewart RD over I-10?

It is owned by the State Highway Agency.