Options for Management of Dynamic Ice Breakup on the Connecticut River Near Windsor, Vermont
The Cornish-Windsor bridge is the longest covered bridge in the United States and has significant historical value. At a large peak flow, dynamic ice breakup of the Connecticut River can threaten the bridge and cause flood damage in the town of Windsor, Vermont. Throughout the 1985-86 winter we regu...
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ftdtic:ADA195329 2023-05-15T16:37:15+02:00 Options for Management of Dynamic Ice Breakup on the Connecticut River Near Windsor, Vermont Ferrick, Michael G Lemieux, George E Weyrick, Patrica B Demont, Warren COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH 1988-03 text/html http://www.dtic.mil/docs/citations/ADA195329 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA195329 en eng http://www.dtic.mil/docs/citations/ADA195329 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Hydrology Limnology and Potamology Snow Ice and Permafrost Civil Engineering *CONNECTICUT RIVER *FLOOD CONTROL *ICE BREAKUP BRIDGES COLD REGIONS CONTROL COSTS DAMAGE DYNAMICS FIELD TESTS FLOODING FLOODS FLOW HYDRAULICS ICE ICE FORMATION MANAGEMENT OPEN WATER PEAK VALUES POWER PROBABILITY RECORDS RELEASE RIVERS STABILITY TURBINES UNITED STATES VERMONT WATER WAVES WINTER HYDROELECTRICITY *Ice management Potamology WU003 PE62730A AST42 Text 1988 ftdtic 2016-02-19T11:20:56Z The Cornish-Windsor bridge is the longest covered bridge in the United States and has significant historical value. At a large peak flow, dynamic ice breakup of the Connecticut River can threaten the bridge and cause flood damage in the town of Windsor, Vermont. Throughout the 1985-86 winter we regularly monitored ice conditions, including a midwinter dynamic ice breakup on 27 January. We conducted controlled release tests over the operating range of the turbines at Wilder Dam upstream during both open water and ice cover conditions. These data and observations were analyzed in light of more than 60 years of temperature and discharge records. Our analysis indicates that river regulation presents alternatives for ice management that would minimize the probability of bridge damage and flooding during breakup. The flow can be regulated early in the winter to promote the growth of a stable ice cover, minimizing the total ice production in the reach. In the weeks prior to breakup, sustained releases and above-freezing air temperatures cause melting, weakening and gradual breakup of the ice, greatly reducing the flooding potential. Also, it is possible to produce a controlled ice breakup prior to an imminent natural event at lower stage and discharge. All of these ice control alternatives have associated power production costs. Keywords: Cold regions; Field tests; Flood control; Hydraulics; Hydrology; Ice breakup; Ice management; Rivers; River waves. Text Ice permafrost Defense Technical Information Center: DTIC Technical Reports database Cornish ENVELOPE(163.083,163.083,-66.717,-66.717) Midwinter ENVELOPE(139.931,139.931,-66.690,-66.690) |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Hydrology Limnology and Potamology Snow Ice and Permafrost Civil Engineering *CONNECTICUT RIVER *FLOOD CONTROL *ICE BREAKUP BRIDGES COLD REGIONS CONTROL COSTS DAMAGE DYNAMICS FIELD TESTS FLOODING FLOODS FLOW HYDRAULICS ICE ICE FORMATION MANAGEMENT OPEN WATER PEAK VALUES POWER PROBABILITY RECORDS RELEASE RIVERS STABILITY TURBINES UNITED STATES VERMONT WATER WAVES WINTER HYDROELECTRICITY *Ice management Potamology WU003 PE62730A AST42 |
spellingShingle |
Hydrology Limnology and Potamology Snow Ice and Permafrost Civil Engineering *CONNECTICUT RIVER *FLOOD CONTROL *ICE BREAKUP BRIDGES COLD REGIONS CONTROL COSTS DAMAGE DYNAMICS FIELD TESTS FLOODING FLOODS FLOW HYDRAULICS ICE ICE FORMATION MANAGEMENT OPEN WATER PEAK VALUES POWER PROBABILITY RECORDS RELEASE RIVERS STABILITY TURBINES UNITED STATES VERMONT WATER WAVES WINTER HYDROELECTRICITY *Ice management Potamology WU003 PE62730A AST42 Ferrick, Michael G Lemieux, George E Weyrick, Patrica B Demont, Warren Options for Management of Dynamic Ice Breakup on the Connecticut River Near Windsor, Vermont |
topic_facet |
Hydrology Limnology and Potamology Snow Ice and Permafrost Civil Engineering *CONNECTICUT RIVER *FLOOD CONTROL *ICE BREAKUP BRIDGES COLD REGIONS CONTROL COSTS DAMAGE DYNAMICS FIELD TESTS FLOODING FLOODS FLOW HYDRAULICS ICE ICE FORMATION MANAGEMENT OPEN WATER PEAK VALUES POWER PROBABILITY RECORDS RELEASE RIVERS STABILITY TURBINES UNITED STATES VERMONT WATER WAVES WINTER HYDROELECTRICITY *Ice management Potamology WU003 PE62730A AST42 |
description |
The Cornish-Windsor bridge is the longest covered bridge in the United States and has significant historical value. At a large peak flow, dynamic ice breakup of the Connecticut River can threaten the bridge and cause flood damage in the town of Windsor, Vermont. Throughout the 1985-86 winter we regularly monitored ice conditions, including a midwinter dynamic ice breakup on 27 January. We conducted controlled release tests over the operating range of the turbines at Wilder Dam upstream during both open water and ice cover conditions. These data and observations were analyzed in light of more than 60 years of temperature and discharge records. Our analysis indicates that river regulation presents alternatives for ice management that would minimize the probability of bridge damage and flooding during breakup. The flow can be regulated early in the winter to promote the growth of a stable ice cover, minimizing the total ice production in the reach. In the weeks prior to breakup, sustained releases and above-freezing air temperatures cause melting, weakening and gradual breakup of the ice, greatly reducing the flooding potential. Also, it is possible to produce a controlled ice breakup prior to an imminent natural event at lower stage and discharge. All of these ice control alternatives have associated power production costs. Keywords: Cold regions; Field tests; Flood control; Hydraulics; Hydrology; Ice breakup; Ice management; Rivers; River waves. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH |
format |
Text |
author |
Ferrick, Michael G Lemieux, George E Weyrick, Patrica B Demont, Warren |
author_facet |
Ferrick, Michael G Lemieux, George E Weyrick, Patrica B Demont, Warren |
author_sort |
Ferrick, Michael G |
title |
Options for Management of Dynamic Ice Breakup on the Connecticut River Near Windsor, Vermont |
title_short |
Options for Management of Dynamic Ice Breakup on the Connecticut River Near Windsor, Vermont |
title_full |
Options for Management of Dynamic Ice Breakup on the Connecticut River Near Windsor, Vermont |
title_fullStr |
Options for Management of Dynamic Ice Breakup on the Connecticut River Near Windsor, Vermont |
title_full_unstemmed |
Options for Management of Dynamic Ice Breakup on the Connecticut River Near Windsor, Vermont |
title_sort |
options for management of dynamic ice breakup on the connecticut river near windsor, vermont |
publishDate |
1988 |
url |
http://www.dtic.mil/docs/citations/ADA195329 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA195329 |
long_lat |
ENVELOPE(163.083,163.083,-66.717,-66.717) ENVELOPE(139.931,139.931,-66.690,-66.690) |
geographic |
Cornish Midwinter |
geographic_facet |
Cornish Midwinter |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA195329 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027541496201216 |