Clearing Ice-Clogged Shipping Channels

• Main Author: Vance,George P
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
• Format: Text
• Language: English
• Published: 1980
• Subjects: Hydrology; Limnology and Potamology; Snow; Ice and Permafrost; Civil Engineering; *ICE; REMOVAL; GROWTH(GENERAL); TRANSPORT; RIVERS; DISPOSAL; ACCUMULATION; CHANNELS(WATERWAYS); MICHIGAN; *River ice; Saint Marys River(Michigan); St. Marys River; Ice; Ice Sheet; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADA095490; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA095490

This report investigates the feasibility of clearing ice from the shipping channel of the St. Marys River. Four basic concepts are investigated: disposal under the ice, disposal on top of the ice, slurring, and rafting. Each technique was found to have application in limited portions of the river with the exception of disposal on top of the adjacent ice sheet, which is deemed feasible throughout the river system. Disposal onto the adjacent ice sheet will increase the free stream velocity less than 1.0 ft/s (30.5 cm/s) and raise the water level less than 1.0 ft (0.30 m). Further model and field tests are recommended to validate the findings of this report. (Author)