Rating:
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Thousand Islands Bridge

Photos 

Tib7

Photo taken by Doug Kerr in July 2004

Enlarge

BH Photo #174087

Map 

Street View 

A Series of Bridges 

Written by Geoff Hubbs; adapted from Wikipedia

Thousand Islands International Bridge system is a series of five bridges that span parts of the St. Lawrence River, ultimately connecting both banks. From south to north:
1. American mainland to Wellesley Island -U.S. South Suspension span
2. Wellesley Island to Hill Island (international crossing) BH 89150
3. Hill Island to Constance Island- Canadian through truss
4. Constance Island to Georgina Island - Canadian deck arch truss
5. Georgina Island to Canadian mainland - Canadian North Suspension span

Facts 

Overview
Suspension bridge over St. Lawrence River on I-81
Location
Jefferson County, New York
Status
Open to traffic
Future prospects
A report produced for the owner recommends South Channel bridge replacement in 2016-2018 and historic bridge demolition in 2019. The future of the North Channel Bridge is uncertain, and should also be considered at risk for demolition.
History
Built 1938; rehabilitated 1986
Builders
- American Bridge Co. of New York
- Robinson and Steinman-Engineer/Design
Design
Wire suspension
Dimensions
Length of largest span: 799.9 ft.
Total length: 4,500.2 ft. (0.9 mi.)
Deck width: 24.0 ft.
Vertical clearance above deck: 16.0 ft.
Approximate latitude, longitude
+44.30222, -75.98278   (decimal degrees)
44°18'08" N, 75°58'58" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/421607/4905910 (zone/easting/northing)
Quadrangle map:
Alexandria Bay
Average daily traffic (as of 2015)
6,396
Inventory numbers
NY 5523240 (New York State bridge identification number)
BH 26187 (Bridgehunter.com ID)
Inspection report (as of July 2017)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 42 (out of 100)
View more at BridgeReports.com

Update Log 

  • April 27, 2020: New photo from Geoff Hubbs
  • September 27, 2018: New photos from Jann Mayer
  • October 17, 2014: New photos from Patrick S. O'Donnell
  • July 2, 2014: New Street View added by Ralph Demars
  • September 26, 2013: Updated by Nathan Holth: This bridge is at risk for demolition.

Sources 

  • Doug Kerr
  • Nathan Holth
  • Patrick S. O'Donnell - 1 [dot] 991km [at] comcast [dot] net
  • Jann Mayer - jannmayer [at] gmail [dot] com
  • Geoff Hubbs

Comments 

St. Lawrence River I-81 Bridge
Posted August 2, 2009, by Doug Kerr (dougtone [at] gribblenation [dot] net)

Photos from July 2004.