US Bridges

Harshaw Road over Harshaw Creek

Good

Santa Cruz County, Arizona · 1.3 MI SE of Patagonia · Structure no. 09924

Built
1987
38 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
86 ft
1 main span
Daily traffic
1,168
2024 count
Owner
County
County Highway Agency

About this bridge

Harshaw Road over Harshaw Creek is a prestressed concrete stringer/multi-beam or girder carrying Harshaw Road over Harshaw Creek in Santa Cruz County, Arizona. It was built in 1987, so it is 38 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,168 vehicles a day, roughly 5% of them trucks, projected to reach 1,178 by 2042. The structure is 86 ft (26.2 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesHarshaw Road
CrossesHarshaw Creek
Location1.3 MI SE of Patagonia
RouteCounty Highway 0
StateArizona
Coordinates31.5401, -110.7324
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating97 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span80 ft (24.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,168 (2024)
Projected traffic1,178 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Harshaw Road over Harshaw Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Harshaw Road over Harshaw Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Harshaw Road over Harshaw Creek carry?

About 1,168 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Harshaw Road over Harshaw Creek?

The structure is 86 ft (26.2 m) long with a longest span of 80 ft (24.4 m) and a deck 35 ft wide.

Who owns Harshaw Road over Harshaw Creek?

It is owned by the County Highway Agency.