Final Discovery Report
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Appendix L: Dams in the Hudson-Hoosic Watershed Final Discovery Report Hudson-Hoosic Watershed, HUC 02020003 Albany, Rensselaer, Saratoga, Warren, and Washington Counties, New York* *These counties span more than one watershed; please see following page for a list of communities fully or partially located in the watershed. This report covers only the Hudson-Hoosic watershed in State of New York. Report Number 01 March 31, 2014 Project Area Community List Albany County Saratoga County (continued) Cohoes, City of* Round Lake, Village of Green Island, Town & Village of*1 Saratoga, Town of Rensselaer County Saratoga Springs, City of Berlin, Town of* Schuylerville, Village of Brunswick, Town of* South Glens Falls, Village of Grafton, Town of* Stillwater, Town of Hoosic, Town of Stillwater, Village of Hoosick Falls, Village of Victory, Village of Petersburgh, Town of Waterford, Town of* Pittstown, Town of Waterford, Village of Schaghticoke, Town of Wilton, Town of Schaghticoke, Village of Warren County Stephentown, Town of Glens Falls, City of* Troy, City of* Lake Luzerne, Town of* Valley Falls, Village of Queensbury, Town of* Saratoga County Washington County Ballston, Town of* Argyle, Town of* Ballston Spa, Village of Argyle, Village of Charlton, Town of* Cambridge, Town of Clifton Park, Town of* Cambridge, Village of Corinth, Town of* Easton, Town of Corinth, Village of Fort Edward, Town of* Galway, Town of* Fort Edward, Village of Galway, Village of2 Greenwich, Town of Greenfield, Town of* Greenwich, Village of Hadley, Town of* Hartford, Town of* Halfmoon, Town of* Hebron, Town of* Malta, Town of Hudson Falls, Village of Mechanicville, City of Jackson, Town of Milton, Town of Kingsbury, Town of* Moreau, Town of Salem, Town of Northumberland, Town of Salem, Village of Providence, Town of* White Creek, Town of *Partially within the Hudson-Hoosic Watershed 1The village and town of Green Island are coterminous 2The village of Galway does not participate in the National Flood Insurance Program (NFIP) This list includes all communities located fully or partially within the Hudson-Hoosic watershed. While all communities may be under consideration for a revised FEMA Flood Insurance Study (FIS) and/or Flood Insurance Rate Map (FIRM), it is important to note that not all communities will receive new/updated FEMA FISs or FIRMs as a result of this Discovery process. i Hudson-Hoosic Discovery Report Table of Contents ACRONYMS AND ABBREVIATIONS ............................................................................................................. viii GLOSSARY OF TERMS .................................................................................................................................. vii SECTION ONE DISCOVERY OVERVIEW ..................................................................................................... 1 Hudson-Hoosic Discovery Project ................................................................................................................. 1 Purpose of the Hudson-Hoosic Watershed Discovery Project ................................................................. 1 Hudson-Hoosic Discovery Project Products .............................................................................................. 1 SECTION TWO HUDSON-HOOSIC OUTREACH STRATEGY ......................................................................... 2 Hudson-Hoosic Discovery Stakeholder Coordination ............................................................................... 2 Pre-Discovery Meetings ........................................................................................................................ 2 Other Stakeholders ............................................................................................................................... 2 Discovery Meetings ............................................................................................................................... 2 SECTION THREE HUDSON-HOOSIC WATERSHED OVERVIEW .................................................................. 2 Geography ................................................................................................................................................. 2 Property Ownership .............................................................................................................................. 5 Demographics ........................................................................................................................................... 7 Media in the Hudson-Hoosic Watershed .................................................................................................. 8 SECTION FOUR SUMMARY OF DATA ...................................................................................................... 9 Data That Can Be Used for Risk MAP Products ....................................................................................... 11 Hudson River Bathymetric/Structure Data Sources ........................................................................... 11 Average Annualized Loss Data ............................................................................................................ 11 Stream Gages in the Hudson-Hoosic Watershed ................................................................................ 13 Rain Gages in the Hudson-Hoosic Watershed .................................................................................... 16 Recognized Levees .............................................................................................................................. 16 Uncertified/Unverified Levees ............................................................................................................ 17 Dams ................................................................................................................................................... 18 Existing LiDAR Coverage in the Hudson-Hoosic Watershed ............................................................... 20 Other Data and Information ................................................................................................................... 21 Biennial Report.................................................................................................................................... 21 Community Assistance Visits (CAVs) ................................................................................................... 21 Community Assistance Contacts (CACs) ............................................................................................. 22 ii Hudson-Hoosic Discovery Report Community Rating System .................................................................................................................. 22 Land Use Management Plans .............................................................................................................. 22 Coordinated Needs Management Strategy (CNMS) and NFIP Mapping Needs ................................. 23 Declared and Natural Disasters in the Hudson-Hoosic Watershed .................................................... 26 Flood Insurance Policies ...................................................................................................................... 27 High Water Marks ............................................................................................................................... 27 Recent and Proposed Construction within the SFHA ......................................................................... 29 Historic Flooding in the Hudson-Hoosic Watershed ........................................................................... 30 Ice Jams ............................................................................................................................................... 32 Congressional and New York State Assembly Districts ....................................................................... 33 Completed Mitigation Projects ........................................................................................................... 35 Countywide Hazard Mitigation Plans/Status ...................................................................................... 36 Details of Mitigation Plans .............................................................................................................. 37 Albany County ............................................................................................................................. 37 Rensselaer County ...................................................................................................................... 38 Saratoga County .......................................................................................................................... 39 Warren County ............................................................................................................................ 41 Washington County .................................................................................................................... 42 Critical Facilities and Other Important Properties Located in the SFHA ............................................. 42 Letters of Map Change (LOMC) in Watershed .................................................................................... 43 Number of Damage Claims in Zones B, C, and X ................................................................................. 46 Regulatory Mapping ...........................................................................................................................