Navigation Improvements in Barnhart Island-Cornwall Island Reach, St. Lawrence River: Hydraulic Model Investigation.

The investigations were concerned primarily with the improvement of South Channel, a reach about 7 miles long, to satisfy navigation criteria and also to assure continuation of the present 14-ft-draft navigation during construction of improvement plans. Interrelated with the South Channel improvemen...

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Bibliographic Details
Main Authors: Lipscomb,E. B., Gill,A. M.
Other Authors: ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
Format: Text
Language:English
Published: 1961
Subjects:
Civil Engineering
(*DAMS
HYDRAULIC MODELS)
MODEL TESTS
NAVIGATION
RIVER CURRENTS
INLAND WATERWAYS
*CHANNEL IMPROVEMENTS
SAINT LAWRENCE RIVER
Cornwall
Lawrence River
Cornwall Island
Online Access:http://www.dtic.mil/docs/citations/AD0761720
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0761720
Description
Summary:The investigations were concerned primarily with the improvement of South Channel, a reach about 7 miles long, to satisfy navigation criteria and also to assure continuation of the present 14-ft-draft navigation during construction of improvement plans. Interrelated with the South Channel improvement was the enlargement of North Channel to maintain the established discharge distribution and to obtain maximum benefits for navigation and power. Two models were used in the investigations. The Cornwall Island model, constructed to an undistorted scale of 1:100 for detailed study of the crosscurrents produced by flow from Pollys Gut, reproduced all features from the head of Pollys Gut to about the mid-point of Cornwall Island. The Barnhart Island-Lake St. Francis model, constructed to linear scale ratios of 1:100 vertically and 1:300 horizontally, reproduced a longer reach of the river extending from the Barnhart Island powerhouse to the lower end of St. Regis Island.

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