US Bridges

US 191 over Union Pacific RR

Fair

Cochise County, Arizona · 3.9 MI S JCT I-10 · Structure no. 00157

Built
1936
89 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
127 ft
3 main spans
Daily traffic
1,325
2022 count
Owner
State
State Highway Agency

About this bridge

US 191 over Union Pacific RR is a steel continuous stringer/multi-beam or girder carrying US 191 over Union Pacific RR in Cochise County, Arizona. It was built in 1936, so it is 89 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 1,325 vehicles a day, roughly 28% of them trucks, projected to reach 1,335 by 2042. The structure is 127 ft (38.7 m) long and 26 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesUS 191
CrossesUnion Pacific RR
Location3.9 MI S JCT I-10
RouteU.S. Route 191
CountyCochise County
StateArizona
Coordinates32.1334, -109.9106
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length127 ft (38.7 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,325 (2022)
Projected traffic1,335 by 2042
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed29.8 mi (48 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 191 over Union Pacific RR built?

It was built in 1936, making it 89 years old in 2025.

What condition is US 191 over Union Pacific RR 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 2024.

How much traffic does US 191 over Union Pacific RR carry?

About 1,325 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is US 191 over Union Pacific RR?

The structure is 127 ft (38.7 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns US 191 over Union Pacific RR?

It is owned by the State Highway Agency.