Obstructions in the Channel – Islands, Locks, Bridge Piers, Docks


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Obstructions in the Channel – Islands, Locks, Bridge Piers, Docks

  • Obstructions in the Channel – Islands, Locks, Bridge Piers, Docks

  • Changes in the Channel – Narrowing of the Channel, Bends, Gorges, Intact Ice Cover

  • Change in the Channel Depth – Deep water to Shallow water

  • Merger of River Channels



Damage Totals Approximately $125 Million Annually

  • Damage Totals Approximately $125 Million Annually

  • Interference with Navigation

  • Reduced Hydropower Production

  • Channel Erosion and Damage to Channel Training Structures

  • Other Costs - Fish, Wildlife and Their Habitat





Montana 1489

  • Montana 1489

  • New York 1467

  • Minnesota 1167

  • Wisconsin 1130

  • Pennsylvania 1124

  • Alaska 1110

  • North Dakota 1048

  • South Dakota 1039

  • Nebraska 1022

  • Vermont 866

  • Illinois 801



Hudson River – North Creek to Hadley

  • Hudson River – North Creek to Hadley

  • Moose River – McKeever and Lyonsdale

  • Sacandaga River – above Lake Algonquin & Hope to Northville

  • Hoosic River – Hoosick Falls to Buskirk

  • Battenkill – Arlington to Battenville

  • Mohawk River – Herkimer to Little Falls, Fort Plain, Tribes Hill, Rotterdam, Schenectady, Rexford, Vischer Ferry, Crescent

  • East Canada Creek, West Canada Creek, Fulmer Creek, Moyer Creek, Steele Creek, Caroga Creek, Otsquago Creek, Canajoharie Creek, Alplaus Kill

  • Schoharie Creek – Lexington to Prattsville, Middleburgh to Lost Valley

  • Rondout Creek – Accord, Kerhonkson, Eddyville

  • Wappingers Creek – especially Shady Brook Trailer Park

  • Roeliff Jansen Kill, Kinderhook Creek, Poestenkill Creek

  • Housatonic River – Falls Village to Kent, New Milford

  • Farmington River – Otis to New Boston

  • Saxtons River – Saxtons River

  • Williams River - Rockingham





W B Farmington Rvr 30

  • W B Farmington Rvr 30

  • Housatonic River 27

  • Leadmine Brook 12

  • Still River 10

  • Shepaug River 07

  • Tenmile River 07

  • Farmington River 06

  • Green River 05

  • Naugatuck River 05

  • Blackberry River 04



Mohawk River 50

  • Mohawk River 50

  • Schoharie Creek 49

  • Middle Br. Moose Rvr 19

  • Moose River 15

  • Platter Kill 11

  • West Canada Creek 10

  • East Canada Creek 08

  • Otsquago Creek 07

  • Fulmer Creek 05



Hudson River 36

  • Hudson River 36

  • Hoosic River 20

  • Sacandaga River 20

  • Batten Kill 19

  • Poesten Kill 10

  • Kayaderosseras Cr 08

  • Northwest Bay Brook 08

  • Moordener Kill 07

  • Kennyetto Creek 05







2/9/2009 Washington Volunteer Fire Department Washington, CT Attendance: 19

  • 2/9/2009 Washington Volunteer Fire Department Washington, CT Attendance: 19

  • 2/25/2009 Montgomery County EMO Fonda, NY Attendance: 35

  • 3/3/2009 Warren County Sheriffs Office Lake George, NY Attendance: 17



Ice Cover Melts in Place

  • Ice Cover Melts in Place

  • Direct Sunlight Plays a Large Role

  • Surface Color Influences Sunlight Absorption, Dusting

  • Water on Ice Decreases Reflection, May Promote Melting

  • Open Water Areas Absorb Sunlight



Fixed Structures – Tension Weir, Sloped Block Ice Control

  • Fixed Structures – Tension Weir, Sloped Block Ice Control

  • Ice Booms

  • Channel Modification

  • Dusting, Hole Drilling

  • Mechanical Weakening



Immediate Strength Reduction.

  • Immediate Strength Reduction.

  • Four Most Common Methods: Excavation - Bulldozer, Clam Shell Blasting - Dynamite, Aerial Ice Cutting - Trencher, Ice Saw Ice Breaking - Amphibious Excavator, Vessels, Wrecking Ball



6 Block Area on West Side of Mohawk, NY Flooded

  • 6 Block Area on West Side of Mohawk, NY Flooded

  • 40 Homes Evacuated

  • Water Depth Reached 6 Feet in Places

  • Numerous Cars Completely Submerged































Ice Jam Training and Mitigation Workshops have had Some Success Mainly with Excavation Methods (Bulldozer, Clam Shell)

  • Ice Jam Training and Mitigation Workshops have had Some Success Mainly with Excavation Methods (Bulldozer, Clam Shell)

  • Other Methods Need to be Utilized Including Sloped Block Ice Control Structures in Non-Navigable Bodies of Water as well as Hydroseeding and Ice Breaking on Larger Bodies of Water






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