Published 2007
Online Only

Scoping of Flood Hazard Mapping Needs for Lincoln County, Maine

By Robert W. Dudley and Charles W. Schalk

Prepared in cooperation with the Federal Emergency Management Agency, Region I and the Maine Floodplain Management Program, State Planning Office.

Background

Report

Download the report in Portable Document Format (PDF).

Open-File Report 2007-1130 (PDF–798KB)

Contents

• Section 1. Introduction
  • Background
  • Scope of Work
  • Description of Lincoln County
• Section 2. Available Flood-Mapping Data and Mapping Needs
  • Community FISs and FIRMs
  • State of Maine Best Available Data (BAD) for Unnumbered A-Zones
  • Letters of Map Change (LOMCs)
  • LOMCs in Lincoln County
  • Community Flood Ordinances
  • Mapping Needs Update Support System (MNUSS)
  • Community Assistance Visits (CAVs) and Community Assistance Contacts (CACs)
  • GIS Data
  • Base Map Data
  • Topographic Data
  • Hydrography Data
  • Community GIS Contact Information
  • Community Meetings and Contacts
  • Scope and Prioritization of Mapping Needs in Lincoln County
    • Prioritization of Towns in Lincoln County
    • Prioritization of Waterbodies in Lincoln County
  • Project Time and Costs for Identified Mapping Needs
  • Project Alternatives
• Section 3. Options for Future Mapping and DTM Preparation
  • Mapping Requirements
  • Base Map
  • Digital Terrain Models (DTMs)
  • Flood-Insurance Risk Zones
• Section 4. References Cited
• Appendices
• Appendix A: Community Contacts and Best Available Data: Lincoln County
• Appendix B: Community Scoping Interview Data: Lincoln County
• Appendix C: Existing MNUSS Data Entries: Lincoln County
• Appendix D: Attachments
• Appendix E: Census Block-Group Data

Tables

Table 1. Organized communities and unorganized territories in Lincoln County, Maine

Table 2. Summary of letters of map change (LOMCs) in Lincoln County, Maine

Table 3. Summary of entries in the Mapping Needs Update Support System (MNUSS) for Lincoln County, Maine

Table 4. Summary of Community Assistance Visits (CAVs) and Community Assistance Contacts (CACs) in Lincoln County, Maine

Table 5. Maine Department of Transportation mapped projects that intersect streams in Lincoln County identified as needing updated flood-insurance studies

Table 6. Maine Floodplain Management Program criteria for prioritization of community-based flood mapping needs in Lincoln County

Table 7. Maine Floodplain Management Program criteria for prioritization of community-based flood mapping needs in Lincoln County

Table 8. Maine Floodplain Management Program criteria and qualitative weight for prioritization of waterbody-based flood mapping needs in Lincoln County

Table 9. Prioritized waterbody-based flood mapping needs in Lincoln County requiring redelineation, limited detail study, or detail study

Table 10. Flood Insurance Rate Map (FIRM) Horizontal Accuracy

Table 11. National Standard for Spatial Data Accuracy (NSSDA)

Figures

Figure 1. Map showing communities in Lincoln County, Maine

Figure 2. Map showing hydrology of Lincoln County, Maine

Figure 3. Map showing orthophotography indices for Lincoln County, Maine. Indices indicate coverage of 1-foot (yellow; each image pixel representing a planimetric square 1 foot on a side), 2-foot (blue), and 1-meter (white) orthophotography archived and served through the internet by the Maine Office of Geographic Information Systems (MEGIS)

Figure 4. Map showing communities in Lincoln County identifying mapping needs by waterbody

Figure 5. Map showing proposed digital flood insurance rate map panels for Lincoln County

Contact