Cayuga-Seneca Canal Bridge Information

There are a total of 21 bridges, guard gates, and pipelines spanning the Cayuga-Seneca Canal. In addition there are numerous overhead cables and high tension wires. These cable crossings having a minimum charted authorized clearance of 53’.

From its junction with the Erie Canal to the "Cayuga Lake/Seneca Lake Junction" there are (5) bridges/guard gates.



There is (1) additional bridge located on the south end of Seneca Lake at Watkins Glen.

There are no operating bridges on the Cayuga-Seneca Canal.

The least vertical clearance on the Cayuga-Seneca Canal at normal pool level is at the Route 89 Bridge (#S-3) with a clearance of 16’ 0". At maximum pool level, the least vertical clearance will be found at the Lock #CS4 Guard Gate (#L4-GG) at 15’ 3.6".

In the table below is a list of all bridges from Kipp Island south to Utica and west to Watkins Glen. It also lists the vertical clearances available at both the normal and maximum pool levels.

Bridge Clearance Table

Cayuga-Seneca Canal - Bridge Clearances

* "Normal Pool" connotes crest height (Barge Canal Datum) for controlling fixed or movable dam on given level. Bridge S-4 located south of lake junction. Bridge S-15 located in Watkins Glen.
* Red Type indicates least vertical clearance.
    Normal Pool Level Maximum Pool Level  
Bridge Structure Bridge Number Pool Height Vertical Clearance Pool Height Vertical Clearance Bridge Type
NYS Thruway Bridge S-1A 374.0’ 26’ 2.4" 380.0’ 20’ 2.4" Fixed (2)
Freebridge S-1 374.0’ 21’ 7.2" 380.0’ 15’ 7.2" Fixed
Lock 1 Guard Gate L1 GG 383.5’ 16’ 6" 384.0’ 16’ 0" Guard Gate
Conrail S-2 383.5’ 17’ 0.6" 384.0’ 16’ 6.6" Fixed
Route 89 S-3 383.5’ 16’ 0" 384.0’ 15’ 6" Fixed
*Conrail S-4 383.5’ 17’ 3.6" 384.0’ 16’ 9.6" Fixed
Footbridge Locks 2/3 S-5 406.0’ 29’ 4.8" 406.0’ 29’ 4.8" Catwalk
Locks 2/3 Guard Gate L2/3 GG 430.5’ 17’ 0" 431.5’ 16’ 0" Guard Gate
Ovid Street S-6 430.5’ 16’ 10.2" 431.85’ 15’ 6" Fixed
Bridge Street S-7 430.5’ 16’ 11.4" 431.85’ 15’ 7.2" Fixed
Rumsey Street S-8 430.5’ 17’ 0" 432.0’ 15’ 6" Fixed
River Road Connector S-9 430.5’ 17’ 7.8" 432.65’ 15’ 6" Fixed
Gorham Street S-10 430.5’ 17’ 9" 432.75’ 15’ 6" Fixed
Washington Street S-11 430.5’ 17’ 4.8" 432.4’ 15’ 6" Fixed
Lock 4 Footbridge S-11A 430.5’ 22’ 0" 432.4’ 20’ 1.2" Catwalk
Lock 4 Guard Gate L4 GG 445.0’ 17’ 0" 446.7’ 15’ 3.6" Guard Gate
Gas Pipelines S-12 445.0’ 20’ 2.5" 446.7’ 18’ 6.1" Utility
Lehigh Valley S-13 445.0’ 17’ 2.4" 446.7’ 15’ 6" Fixed
Route 96A S-13A 445.0’ 17’ 6" 446.7’ 15’ 9.6" Fixed
Conrail S-14 445.0’ 17’ 3.6" 446.7’ 15’ 7.2" Fixed
Seneca Lake - No Overhead Obstructions
*Route 414 Watkins Glen S-15 445.0’ 17’ 6" 446.7’ 15’ 6" Fixed

This table can be downloaded for your personal and private use. The file is Zipped Adobe (.pdf) format.

Cayuga-Seneca Canal Bridge Clearances Table - Download

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