Floodplain Management in Illinois - Illinois Department of Natural ...

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Flood Map Revisions There Are Three Primary Types of Flood Map Revisions 1. 2. Letter of Map Amendment (LOMA) – issued when a property owner demonstrates that the natural ground is higher than the BFE (see page 15). Lenders may waive the flood insurance requirement if the LOMA documents that a home is not in the mapped floodplain. Letter of Map Revision Based on Fill (LOMR-F) – issued when fill has been placed to raise the land above the BFE. For multiple lots, the applicant must certify compaction of the fill. Lenders can waive the insurance requirement if the LOMR-F demonstrates that homes on fill are above the BFE. Important Information Check FEMA’s Flood Hazard Mapping Web Site for more information about map revisions concerning Homeowners 3. Physical Map Revision (LOMR PMR) – issued for floodplain changes that require engineering analyses, such as bridges, culverts, channel changes, flood control measures, and large fills that change the BFE or Floodway. Physical map revisions are also issued when a new study updates or improves the FIRM. and Engineers/Surveyors. www.fema.gov/mit/tsd 10 ILLINOIS QUICK GUIDE
Floodplain Development Includes: Construction of new buildings Additions to existing buildings Substantial improvement of existing buildings Placement of manufactured (mobile) homes Subdivision of land Temporary buildings and accessory structures. Agricultural buildings Recreational vehicles Storage of materials, including gas/liquid tanks Roads, bridges, and culverts Fill, grading, excavation, mining, and dredging Altering stream channels YOU NEED PERMITS FOR ALL OF THESE ACTIVITIES. 11 ILLINOIS QUICK GUIDE
Page 1 and 2: FLOODPLAIN MANAGEMENT IN ILLINOIS 2
Page 3 and 4: About This Guide The Floodplain Man
Page 5 and 6: Community Responsibilities To parti
Page 7 and 8: Understanding the Floodway A Flood
Page 9 and 10: The Flood Insurance Rate Map NOTE:
Page 11: Approximate Flood Zones Approximate
Page 15 and 16: What is the Elevation Certificate a
Page 17 and 18: Is Your Land Higher than the BFE Se
Page 19 and 20: Nature Doesn’t Read Maps Importan
Page 21 and 22: Some Key Permit Review Steps The Pe
Page 23 and 24: Floodway Development Proposals For
Page 25 and 26: How to Elevate Your Floodplain Buil
Page 27 and 28: Manufactured Homes Deserve Special
Page 29 and 30: Utility Service for Buildings ATTAC
Page 31 and 32: Recreational Vehicles In a flood ha
Page 33 and 34: Planning to Improve Your Floodplain
Page 35 and 36: Elevating a Pre-FIRM Building AFTER
Page 37 and 38: Paperwork is Important - for You an
Page 39 and 40: Some Mitigation Projects are More C

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