1 vote

White Rock Bridge



Photo taken April 1994 by Wayne Fleming for the Historic American Engineering Record

BH Photo #108768

Street View 


This pair of bridges cross both the Pawcatuck River as a through truss bridge, and the White Rock Canal as a pony truss. The original configuration was unusual in that separate structures were provided for highway and trolley traffic with a common center truss. (See photo #2.) The highway portion was replaced after closing in 1976. (NBI says built 1996.) The railroad portion was retained for pedestrian use.


Through and pony truss bridge over Pawcatuck River on Bridge Road/White Rock Road at Westerly
Washington County, Rhode Island, and New London County, Connecticut
Open for Pedestrian Use
Built 1906 by the National Construction Co.; railroad discontinued 1922; bridge closed to all traffic in 1976
- National Construction & Equipment Co. of New York, New York
- Interurban
- Norwich & Westerly Railway
Pratt through truss over Pawcatuck River
Pratt pony truss over White Rock Canal (Tail race of White Rock Mill)
Length of largest span: 126.0 ft.
Total length: 234.0 ft.
Deck width: 9.8 ft.
Approximate latitude, longitude
+41.39754, -71.84197   (decimal degrees)
41°23'51" N, 71°50'31" W   (degrees°minutes'seconds")
Approximate UTM coordinates
19/262415/4586787 (zone/easting/northing)
Quadrangle map:
Average daily traffic (as of 2008)
Inventory numbers
RI 652 (Rhode Island bridge number)
HAER No. RI-39
BH 31979 (Bridgehunter.com ID)
Inspection report (as of January 2009)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Good (7 out of 9)
View more at BridgeReports.com

Update Log 

  • November 16, 2020: Updated by Chester Gehman: Added description-unusual configuration
  • July 14, 2016: Updated by Christopher Finigan: Added category "Preserved"
  • January 3, 2014: Updated by Luke Harden: Added categories "railroad", "Rail-and-Road", "Interurban", "Norwich & Westerly Railway"
  • August 14, 2013: New photos from C Hanchey
  • February 1, 2011: Updated by J.P.: bridge open to pedestrians
  • September 15, 2006: Posted HAER photos


  • J.P. - wildcatjon2000 [at] gmail [dot] com
  • HAER RI-39 - White Rock Bridge, Spanning Pawcatuck River & White Rock Canal, Westerly, Washington, RI
  • C Hanchey - cmh2315fl [at] yahoo [dot] com
  • Luke
  • Chester Gehman - gehmanc2000 [at] yahoo [dot] com