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Image: Lock E11 truss, movable dam and lock chamber

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Description: Erie Canal Lock E11, on the Mohawk River at 336 West Main Street, Amsterdam, New York, is one of eights locks on the river which include a truss structure spanning the river which is used to raise and lower movable steel gates and uprights which dam the river or let it flow freely. This is done using electric-powered winches called "mules". Lock E11 has a lift of 12 feet: the upstream elevation is 267 feet, and the downstream is 255 feet. Only two of the eight truss structures carry roadway; this is not one of them. The towers keep mechanical and electrical equipment above water at flood stage. (Source: Signs on site)
Title: Lock E11 truss, movable dam and lock chamber
Credit: Own work
Author: Beyond My Ken
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: https://creativecommons.org/licenses/by-sa/4.0
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