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Santa Cruz Bridge No. 1


File:Santa Cruz River Bridge 8166 from SW 1.JPG

Photo taken by Ammodramus at Wikimedia

View this photo at commons.m.wikimedia.org

BH Photo #259348


Street View 


One of the earliest major vehicular bridges undertaken by the Arizona State Engineer's Office, the Santa Cruz Bridge was for decades a regionally important river crossing. As such it is historically significant for the role it has played in southern Arizona transportation. Technologically, the bridge is distinguished as an outstanding representative of a formative structural type. Although numerous concrete girder bridges were erected throughout Arizona in the 1910's, 1920's and 1930's, most featured designs with four of more relatively shallow girders. The earliest concrete girders in Arizona typically employed two-girder designs. Their superstructures were massive and able to stand the flooding that was the bane of bridges in the desert. But they consumed sizable amounts of concrete and reinforcing steel. Of the earliest structures, only the Santa Cruz, Hells Canyon and Antelope Hill bridges remain. The Santa Cruz Bridge is the earliest and longest-span concrete girder still in use on the state's road system. A visually striking structure and a point of pride for the highway department in its early days, it is a significant early Arizona transportation related resource.


Concrete girder bridge over Santa Cruz River on River Road
Santa Cruz County, Arizona
Open to traffic
Built 1917; Minor guardrail alterations ca. 1970
Concrete deck girder
Length of largest span: 65.0 ft.
Total length: 464.9 ft.
Deck width: 18.0 ft.
Posted to the National Register of Historic Places on September 30, 1988
Also called
Santa Cruz River Bridge
Approximate latitude, longitude
+31.38885, -110.87437   (decimal degrees)
31°23'20" N, 110°52'28" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/511944/3472704 (zone/easting/northing)
Quadrangle map:
Rio Rico
Average daily traffic (as of 2017)
Inventory numbers
NRHP 88001635 (National Register of Historic Places reference number)
AZ 8166 (Arizona bridge number)
BH 57059 (Bridgehunter.com ID)
Inspection report (as of August 2018)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 57.4 (out of 100)
View more at BridgeReports.com


Arizona (331)
Built 1917 (641)
Built during 1910s (9,711)
Concrete girder (1,015)
Deck girder (5,824)
Girder (10,371)
Have street view (27,131)
NR-listed (2,964)
Open (40,044)
Owned by county (20,943)
Santa Cruz County, Arizona (6)
Span length 50-75 feet (10,127)
Total length 250-500 feet (5,273)

Update Log 

  • February 20, 2014: Photo imported by Dave King
  • July 9, 2013: Added by Dave King