ICE FLUSHING FROM ST. LAWRENCE SEAWAY LOCKS

The St. Lawrence Seaway Development Corporation secured the services of the U.S. Army Engineer Waterways Experiment Station to determine, with the aid of physical model tests, the most effective and economical method of ridding a lock chamber of floating ice. Tests were conducted in an existing 1:25-scale lock model modified to simulate the pertinent features of the St. Lawrence Seaway Lock chambers. A manifold at the upstream end of the chamber proved best for flushing ice from the chamber. Flow through the manifold was pumped from various locations in the chamber or piped through the upstream miter gate sill; both of these methods were designed to create a sufficient slope of the water surface in the chamber to flush the ice. These model tests provided the means to determine the size and configuration of the manifold and the amount of flow required for total flushing.

• Corporate Authors:

  U.S. Army Waterways Experiment Station

  3909 Halls Ferry Road
  Vicksburg, MS  United States  39180-6199
• Authors:
  • OSWALT, N R
• Publication Date: 1976-7

Media Info

• Pagination: 79 p.

Subject/Index Terms

• TRT Terms: Canals; Deicing; Flushing; Hydraulic structures; Ice; Ice floes; Ice phenomena; Inland waterways; Locks (Waterways); Piping systems; Snow and ice control
• Uncontrolled Terms: Hydraulic models; Ice breakup
• Geographic Terms: Saint Lawrence Seaway
• Subject Areas: Maintenance and Preservation; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00143733
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: WES-TR-H-76-9 Final Rpt.
• Files: TRIS
• Created Date: Nov 17 1977 12:00AM