US Bridges

US 191 NB over Rattlesnake Canyon

Fair

Greenlee County, Arizona · 1.8 MI N JCT SR 75 · Structure no. 01886

Built
1982
43 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
257 ft
3 main spans
Daily traffic
5,190
2022 count
Owner
State
State Highway Agency

About this bridge

US 191 NB over Rattlesnake Canyon is a prestressed concrete continuous stringer/multi-beam or girder carrying US 191 NB over Rattlesnake Canyon in Greenlee County, Arizona. It was built in 1982, so it is 43 years old, younger 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 6 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 5,190 vehicles a day, roughly 7% of them trucks, projected to reach 5,200 by 2042. The structure is 257 ft (78.3 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 191 NB
CrossesRattlesnake Canyon
Location1.8 MI N JCT SR 75
RouteU.S. Route 191
CountyGreenlee County
StateArizona
Coordinates32.97157, -109.23926
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span85 ft (25.9 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,190 (2022)
Projected traffic5,200 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 191 NB over Rattlesnake Canyon built?

It was built in 1982, making it 43 years old in 2025.

What condition is US 191 NB over Rattlesnake Canyon 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 August 2023.

How much traffic does US 191 NB over Rattlesnake Canyon carry?

About 5,190 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is US 191 NB over Rattlesnake Canyon?

The structure is 257 ft (78.3 m) long with a longest span of 85 ft (25.9 m) and a deck 45 ft wide.

Who owns US 191 NB over Rattlesnake Canyon?

It is owned by the State Highway Agency.