US Bridges

Wards Canyon RD over Soap Box Canyon

Poor

Greenlee County, Arizona · 3.4 MI E JCT US 191 · Structure no. 08149

Built
1915
110 years old, rebuilt 1975
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
31 ft
2 main spans
Daily traffic
800
2021 count
Owner
County
County Highway Agency

About this bridge

Wards Canyon RD over Soap Box Canyon is a steel continuous stringer/multi-beam or girder carrying Wards Canyon RD over Soap Box Canyon in Greenlee County, Arizona. It was built in 1915 and reconstructed in 1975, so it is 110 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 800 vehicles a day, projected to reach 810 by 2041. The structure is 31 ft (9.4 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWards Canyon RD
CrossesSoap Box Canyon
Location3.4 MI E JCT US 191
RouteCounty Highway 0
StateArizona
Coordinates33.02037, -109.24957
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span14 ft (4.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic800 (2021)
Projected traffic810 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Wards Canyon RD over Soap Box Canyon built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1975.

What condition is Wards Canyon RD over Soap Box Canyon in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does Wards Canyon RD over Soap Box Canyon carry?

About 800 vehicles per day (2021 count).

How long is Wards Canyon RD over Soap Box Canyon?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m) and a deck 28 ft wide.

Who owns Wards Canyon RD over Soap Box Canyon?

It is owned by the County Highway Agency.