Compensating dam at the Soo Locks (1 of 2)

Photograph showing discharge measurements being made at the compensating dam above the locks, with all 16 gates open. Looking upstream.
Abstract/Description: Photograph showing discharge measurements being made at the compensating dam above the locks, with all 16 gates open. Looking upstream.
Subject(s): Boats and boating
Soo Locks (Mich.)
Date Created: 1927-11-03