Eisenhower Lock

Eisenhower Lock. Stepping Down the St. Lawrence. , How Does a Lock Work? , 1) A) Filling valve opened. Emptying valve closed. , B) Water enters by gravity. Gate closed. Ship waiting to enter. , C) Chamber fills to upstream level. , D) Attendant opens gate. Catch cable lowered. , 2) A) Attendants tie off ship. , B) Filling valve closed. , C) Emptying valve opens. , D) Water empties by gravity. , 3) A) Water equals down stream level. , B) Downstream gates open. Filling valve closed. Emptying valve open. , C) Ship departs. , A Tight Fit. Lock Cross Section. , Navigators must thread their massive ships into a space that is only slightly larger than the ship's beam (width.) , Lock Facts , Filling Time: 7 Minutes , Emptying Time: 7 Minutes , Time in Lock: 20 Minutes , Gallons of Water: 22 Million , Ships Raised/Lowered: 42 feet , Ocean and lake vessels are raised and lowered from the Atlantic Ocean to Lake Superior by locks. Ships from 50 different countries pass through this lock transporting goods around the globe. , Profile of the St. Lawrence Seaway , Lake Superior, Lake Michigan, Lake Huron, Lake Erie, Lake Ontario, Lake St. Lawrence, The Eisenhower Lock, Lake St. Francis, Lake St. Louis, Tidewater Section , The Seaway connects the interior U.S. and Canadian markets to the world , Seaway Trail, Inc., Corner Ray and West Main St., Sackets Harbor, NY 13685, 1-800-SEAWAY-T. This exhibit made possible by a grant from FHWA to Seaway Trail, Inc.