US Bridges

SR 80 over Mule Pass-Lowell Arch

Fair

Cochise County, Arizona · 4.5 MI E JCT SR 92 · Structure no. 00130

Built
1911
114 years old, rebuilt 1934
Condition
Fair
inspected April 2024
Type
Arch - Deck
Concrete
Length
105 ft
1 main span
Daily traffic
4,769
2022 count
Owner
State
State Highway Agency

About this bridge

SR 80 over Mule Pass-Lowell Arch is a concrete arch - deck carrying SR 80 over Mule Pass-Lowell Arch in Cochise County, Arizona. It was built in 1911 and reconstructed in 1934, so it is 114 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 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 4,769 vehicles a day, roughly 13% of them trucks, projected to reach 4,779 by 2042. The structure is 105 ft (32 m) long and 33 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesSR 80
CrossesMule Pass-Lowell Arch
Location4.5 MI E JCT SR 92
RouteState Highway 80
CountyCochise County
StateArizona
Coordinates31.44198, -109.8256
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length105 ft (32 m)
Longest span60 ft (18.3 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,769 (2022)
Projected traffic4,779 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 80 over Mule Pass-Lowell Arch built?

It was built in 1911, making it 114 years old in 2025. It was reconstructed in 1934.

What condition is SR 80 over Mule Pass-Lowell Arch 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 April 2024.

How much traffic does SR 80 over Mule Pass-Lowell Arch carry?

About 4,769 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is SR 80 over Mule Pass-Lowell Arch?

The structure is 105 ft (32 m) long with a longest span of 60 ft (18.3 m) and a deck 33 ft wide.

Who owns SR 80 over Mule Pass-Lowell Arch?

It is owned by the State Highway Agency.