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Water-Surface Profiles and Discharges for Four Stream Reaches, Ithaca, Tompkins County N.Y. Background / Problem – The City of Ithaca, Tompkins County, N.Y., is in the process of developing a flood management plan for the streams that flow through the City. Flooding in the City is caused by a variety of distinct and sometimes interconnected reasons. Flooding often is a result of snowmelt and rain during the winter and spring. Slow ice-melt and breakup can lead to ice jams and subsequent flooding. Flash floods are produced by summer thunderstorms. All of these flood types are compounded by two factors: the storm-sewer system in the City and the elevation of Cayuga Lake. The storm sewers drain to the nearby streams at points below the tops of the streambanks. Because the streamward ends of the storm sewers... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cascadilla Creek, Cayuga Inlet, Cooperative Water Program, Fall Creek, Flood Science, All tags... Flood Science, Flood Science, Floods and Droughts, Ithaca, New York, Sixmile Creek, Stream Hydraulics, Stream Hydraulics, Tompkins County, USGS New York Water Science Center, WSC, Water Use and Availability Science, Water Use and Availability Science, discharge, flood-management, flooding, hydraulic model, storm-sewer, streamflow, Fewer tags Surface-Water Data Collection in New York Problem Surface-water information is needed for planning, design, hazard warning, and operation and management in water-related fields such as water supply, hydroelectric power, flood control, irrigation, bridge and culvert design, wildlife management, pollution abatement, flood-plain management, and water-resources development. Appropriate historical and real-time surface-water data, such as stream flow and stage, reservoir levels, and water temperature, are necessary to properly assess, manage and protect water resources. Objectives Collect timely and high quality surface-water data for (1) assessment of water resources; (2) operation of reservoirs or industries; (3) forecasting flow; (4) disposal of wastes... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate Impacts, Climate Impacts, Climate Research and Development, Climate impacts, Cooperative Water Program, All tags... Core Science Analytics, Synthesis, and Libraries, Ecoflows, Ecoflows, Ecoflows, Energy Resources, Environments, Flood Inundation, Flood Inundation, Flood Inundation, Floods and Droughts, GW or SW, GW or SW, GW or SW, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Low Flow or Peak Flow, Low Flow or Peak Flow, Low flow or peak flow, SW Model, SW model, Stream Hydraulics, Stream Hydraulics, Stream hydraulics, StreamStats, StreamStats, StreamStats, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, Toxic Substance Hydrology, USGS New York Water Science Center, WSC, Fewer tags Southeastern New York Tide-Telemetry and Coastal-Flood-Warning System The coastal areas of southeastern New York (fig. 1) are highly vulnerable to tidal flooding (fig. 2). Timely evacuation of people from flood-threatened areas in advance of approaching hurricanes and nor'easters (northeast coastal storms) requires adequate flood-warning time. To begin addressing this need for immediate information on coastal flooding, the U.S. Geological Survey (USGS), in cooperation with the Town of Hempstead Department of Conservation & Waterways, Village of Freeport, and New York State Department of Environmental Conservation, has operated a network of real-time tidal water-elevation and meteorological stations since 1997 in the coastal areas of Long Island and New York City. Each tidal water-elevation... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate Impacts, Climate Impacts, Climate impacts, Coastal Science, Coastal Science, All tags... Cooperative Water Program, Core Science Analytics, Synthesis, and Libraries, Flood Hazards, Flood Hazards, Flood Hazards, Flood Inundation, Flood Inundation, Flood Inundation, Flood Science, Flood Science, Flood Science, Floods and Droughts, GW or SW, GW or SW, GW or SW, Groundwater and Streamflow Information, Groundwater and Streamflow Information, Low Flow or Peak Flow, Low Flow or Peak Flow, Low flow or peak flow, New York, Stormwater, Stormwater, Stormwater, Surface-Water Monitoring, Surface-Water Monitoring, Surface-Water Monitoring, USGS New York Water Science Center, WSC, Water Use and Availability Science, Water Use and Availability Science, coastal areas of southeastern New York, Fewer tags Flood-Inundation Maps for the West Branch Delaware River, Delhi, New York Delhi has experienced severe flooding along the West Branch Delaware River (fig. 1); most notably during January, 1996, June, 2006, and October, 2010, and August, 2011. Emergency responders would benefit from a library of flood-inundation maps that are referenced to the stages recorded at the USGS streamgage upstream from Delhi. By referring to the appropriate map, emergency responders could discern the severity of flooding (depth of water and aerial extent), identify roads that are or will soon be flooded, and make plans for notification or evacuation of residents in harm’s way based on current and near-future flood levels. Digital flood-inundation maps for a 5 mile reach of the West Branch Delaware River through... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Completed, Cooperative Water Program, Delaware River Basin, Flood Inundation, Flood Inundation, All tags... Flood Inundation, Flood Science, Flood Science, Flood Science, Floods and Droughts, New York, USGS New York Water Science Center, WSC, Water Use and Availability Science, Water Use and Availability Science, Fewer tags Flood-Inundation Mapping for Schoharie Creek at North Blenheim, NY Background and Problem Flooding is a ubiquitous problem throughout New York State. The Schoharie Creek has experienced severe floods, including the devastating floods of August 2011 following Hurricane Irene, which severely damaged or destroyed many homes, businesses, roads, and other property within the Schoharie Valley. In North Blenheim, homes, the Blenheim Town Hall, fire hall, and maintenance hall were inundated; road were washed out and the historic covered bridge was destroyed. In addition to the flood of 2011, major floods occurred in April 1987, January 1996, and April 2005. Before and during a flood, forewarning and emergency response are critical to minimizing loss of life and property. The rescue efforts... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cooperative Water Program, Flood Inundation, Flood Inundation, Flood Science, Flood Science, All tags... Floods and Droughts, New York, SW Model, SW model, Schoharie Creek, North Blenheim, Surface-Water Modeling, Surface-Water Modeling, USGS New York Water Science Center, WSC, Water Use and Availability Science, Fewer tags Flood-Inundation Maps for Four Stream Reaches, Ithaca, Tompkins County, New York Problem The City of Ithaca, Tompkins County, N.Y., is in the process of developing a flood management plan for the streams that flow through the City. Flooding in the City is an annual problem caused by a variety of distinct and sometimes interconnected reasons. Flooding often is a result of snowmelt and rain during the winter and spring. Slow ice-melt and breakup can lead to ice jams and subsequent flooding. Flash floods are produced by summer thunderstorms. All of these flood types are compounded by two factors: the storm-sewer system in the City and the elevation of Cayuga Lake. The storm sewers drain to the nearby streams at points below the tops of the streambanks. Because the streamward ends of the storm sewers... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cascadilla Creek, Cayuga Inlet, Cooperative Water Program, Fall Creek, Flood Inundation, All tags... Flood Inundation, Flood Inundation, Flood Science, Flood Science, Flood Science, Floods and Droughts, Ithaca, NY, New York, Sixmile Creek, Tompkins County, USGS New York Water Science Center, WSC, Water Use and Availability Science, Water Use and Availability Science, Fewer tags Floods of 2011 in New York Background / Problem Hurricane Irene Figure 1 shows the declared counties for Hurricane Irene (FEMA) Five to ten inches of rain from Hurricane Irene produced widespread moderate to major flooding throughout eastern New York August 28-30. Highest rainfall totals occurred in the Catskill Mountains of southeastern New York where over 18-inches of rain was reported at Maplecrest, NY. Record water-surface elevations and streamflows were recorded at 60 USGS streamgages and 2 lake/reservoirs. Provisional recurrence intervals of peak flows exceeded the 100-yr flood (1 percent annual chance flood) at 25 USGS streamgages. Provisional recurrence intervals of peak flows exceeded the 500-yr flood (0.2 percent annual chance... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Completed, Cooperative Water Program, Delaware River Basin, Flood Inundation, Flood Inundation, All tags... Flood Inundation, Flood Science, Flood Science, Flood Science, Floods and Droughts, New York, USGS New York Water Science Center, WSC, Water Use and Availability Science, Water Use and Availability Science, statewide, Fewer tags Coastal Storm Response Surge, Wave, and Tide Hydrodynamics Network (SWaTH) Following Hurricane Sandy, the USGS began construction of an overland Surge, Wave, and Tide Hydrodynamics (SWaTH) Network along the Northeastern Atlantic Coast from North Carolina to Maine. This network, developed collaboratively with numerous partners, features the integration of long-term tide gage networks, with real-time rapid-deployment gages (RDG) and mobile storm-tide sensors (STS). An element of the comprehensive strategy of SWaTH ensures that locations for most RDGs and STSs have been presurveyed to the North American Vertical Datum of 1988 (NAVD 88) and equipped with receiving brackets. This permits rapid deployment and recovery of instrumentation and data dissemination in the hours and days immediately... Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Coastal Science, Coastal Science, Delaware, Delaware River Basin, Hydrologic Networks and Analysis, All tags... Maryland, New Jersey, New York, North Carolina, Northeastern Atlantic Coast, RDG, STS, Stormwater, Stormwater, Stormwater, Tide and Wave Hydrodynamics, Tide and Wave Hydrodynamics, Tide and Wave Hydrodynamics, USGS Emergency Management, USGS New York Water Science Center, Virginia, WSC, hydrodynamics, storm surge, storm tide, storm wave, storm-tide sensors, Fewer tags