Additionally, the CTP involved in this project will develop new and/or updated hazard data as summarized in Table 1.2: Total Stream Mile Counts by Type of Study. The FIRM and FIS report for the watersheds and areas identified in Table 1.2 will be produced in the North American Vertical Datum of 1988 (NAVD88). Table 1.2: Total Stream Mile Counts by Type of Study Type of Study* Watershed or Jurisdiction Coastal Riverine Hydraulic Analysis Option (A-E) 1D or 2D Effective Flood Insurance Study Updated Effective Zone AE Studies Wave = ## New AE = ## Leverage AE = Updated Effective Zone A Studies = ## New A = ## Leverage A = New Zone AE Studies Identified Wave = ## New AE = ## Leverage AE = New Zone A Studies Identified Surge = ## New A = ## Leverage A =
Develop Risk Products Responsible Mapping Partner: {Insert name of CTP and other responsible Mapping Partner(s).} Scope: Risk assessment data and analyses are defined as processes for evaluating the risk associated with a hazard and using that information to make informed decisions on the appropriate ways to reduce the impacts of the hazard on people and property. As part of the Risk MAP Program, Flood Risk Products shall be developed for study areas as listed in Table 1.4. Table 1.4: Flood Risk Products Flood Risk Product/Data Set New Hazard Analysis Conducted (1) No New Flood Hazard Analysis Conducted Flood Risk Database Required Required Flood Risk Dataset Changes Since Last Firm (CSLF) Required (2) N/A Water Surface Elevation Grids Required (3) Optional (4) Depth Grids Required (3) Optional (4) Percent Annual Chance & Percent Chance Grids Required (5) Optional (4, 5) Flood Risk Assessment Required (6,8) Required (7,8) Areas of Mitigation Interest (AOMI) Required Required Flood Risk Map Optional Optional Risk Report Optional Optional “New Flood Hazard Analysis” = Flooding sources receiving regulatory-level analysis CSLF is optional in where digital modernized floodplain boundaries are not available for the effective Flood Insurance Rate Map (FIRM). Year
auto-placed by “intelligent” methods. for structure modeling. B Auto-placed and hand adjusted or auto-placed by “intelligent” methods. lengths computed by offsetting stream centerline. Overbanks from Land Use Land Cover (LULC) data, channel value estimated separately. Not included; but cross sections placed appropriately for structure modeling. A C Each section reviewed by engineers. Reach lengths adjusted based on draft floodplain. Overbanks LULC data, channel value estimated separately. Included; structure data from national, or other data source. Estimated based on topography and aerial photos for those not available. A D Each section reviewed by engineers. Reach lengths adjusted based on draft floodplain. Overbanks from LULC data, channel value estimated separately and calibrated where possible. Included; structure data from as-builts, design plans, “measured” in the field, or other community datasets with opening information. A or AE E Each section reviewed by engineers, channel bathymetry included in sections. Reach lengths adjusted based on draft floodplain. Overbanks from LULC data and field data, channel value estimated separately from field data and calibrated where possible. Included; structure data from field survey, design plans, “measured” in the field. AE
Table 6.1 or a similar table is required and needs to be filled out as part of the grants submission process. One useful form Regions are using instead of Table 6.1 is the Please work with your Region when submitting the QBR or any other form that it representative of the information in Table 6.1. Table 6.1: Project Activities Schedule Activities Responsible Partners(s) Estimated START DATE Estimated END DATE Project Management Project Risk Identification and Mitigation Perform Discovery Perform Community Engagement and Project Outreach Develop Flood Risk Products Independent QA/QC of Flood Risk Products Perform Field Surveys New Topographic Data Capture Existing Topographic Data Capture Terrain Data Capture Perform Independent QA/QC: Topographic Data Acquire Base Map