Keystone Avenue Bridge
Designed by the Topeka Bridge & Iron Company and built by the town in 1920.
- Concrete arch bridge over Bloody Tanks Wash on Keystone Avenue in Miami
- Miami, Gila County, Arizona
- Open to traffic
- Built 1920
- - Topeka Bridge & Iron Co.
- Concrete filled closed-spandrel Luten arch
Length of largest span: 49.9 ft.
Total length: 53.8 ft.
Deck width: 34.1 ft.
Posted to the National Register of Historic Places on March 31, 1989
- Approximate latitude, longitude
- +33.39916, -110.87044 (decimal degrees)
33°23'57" N, 110°52'14" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 12/512048/3695546 (zone/easting/northing)
- Quadrangle map:
- Average daily traffic (as of 2018)
- Inventory numbers
- AZ 8588 (Arizona bridge number)
NRHP 88001692 (National Register of Historic Places reference number)
BH 10717 (Bridgehunter.com ID)
- Inspection report (as of June 2018)
- Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 59.4 (out of 100)
View more at BridgeReports.com
- February 18, 2014: Photo imported by Dave King
- March 1, 2011: New Street View added by J.P.
- J.P. - wildcatjon2000 [at] gmail [dot] com