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The FEMA Elevation Certificate

The FEMA Elevation Certificate. Course Objectives.  At the completion of this training, each participant should be able to:. Identify the three purposes of the Elevation Certificate (EC) Properly complete the EC. Course Objectives con’t. Community officials will be able to …

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The FEMA Elevation Certificate

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  1. The FEMA Elevation Certificate

  2. Course Objectives At the completion of this training, each participant should be able to: • Identify the three purposes of the Elevation Certificate (EC) • Properly complete the EC

  3. Course Objectives con’t • Community officials will be able to … • better advise property owners/developers/surveyors/engineers regarding the EC • increase their knowledge on the use and application of the EC for floodplain management purposes

  4. Comments • The topics presented in this training are presented as they relate to the FEMA EC. i.e., this course does not cover the detailed aspects of the NFIP (insurance, mapping or floodplain management).

  5. More Comments • Topics pertain to the minimum standards of the NFIP • Subject matter applies to the Special Flood Hazard Area, i.e., the “100-year” floodplain Questions and comments are encouraged

  6. Course Outline • Purpose of the Elevation Certificate • Definitions • Completing the FEMA Elevation Certificate • utilizing AE, A, AO and V SFHAs • Community Floodplain Management and the • EC

  7. BFE Base Flood Elevation DWR California Department of Water Resources EC Elevation Certificate FEMA Federal Emergency Management Agency FHBM Flood Hazard Boundary Map FIRM Flood Insurance Rate Map DFIRM Digital Flood Insurance Rate Map LOMA Letter of Map Amendment LOMR Letter of Map Revision Acronyms….

  8. ….Acronyms • LOMR-FLetter of Map Revision Based on Fill • NFIP National Flood Insurance Program • SFHA Special Flood Hazard Area • RM Reference Mark • NGVD National Geodetic Vertical Datum of 1929 • NAVD North American Vertical Datum of 1988 • NAD 27North American Datum of 1927 • NAD 83North American Datum of 1983

  9. Purpose of the FEMA Elevation Certificate

  10. Purpose of the EC • 1.Flood Compliance • Used to provide elevation information necessary to ensure compliance with community floodplain management ordinances and the NFIP regulations

  11. Flood compliance con’t… • If a community utilizes the FEMA EC, • . . . the local official who is authorized by law or ordinance to administer the community’s floodplain management ordinance will need to determine the lowest floor based on the information provided on the form and final field inspections.

  12. Purpose con’t • 2.For flood insurance purposes • The EC is used, along with the insurance • application form, to determine the proper • rating for flood insurance premiums for newer (Post-FIRM) structures, and may be used to reduce insurance premiums for older (Pre-FIRM) structures.

  13. 3.Support LOMAs and LOMRs The EC may be used to support a request for a Letter of Map Amendment (LOMA) or Letter of Map Revision Based on Fill (LOMR-F). Does not replace the MT-EZ, MT-1 or MT-2 forms which must be filled out

  14. CAUTION Communities that participate in the Community Rating System (CRS) mustuse the FEMA EC as a condition of participation!

  15. KEY DEFINITIONS YOU MUST KNOW • Special Flood Hazard Area • Base Flood Elevation • Lowest Floor

  16. SFHA The land in the floodplain within a community subject to a one percent or greater chance of flooding in any given year.

  17. SFHAs • For areas not studied in detail, a SFHA may be designated as Zones A or V on the Flood Insurance Rate Map. • For detailed study areas, a SFHA will have more refined designations, including Zones AO, AH, A1-30, AE, A99, AR, or VO, V1-30, or VE on the Flood Insurance Rate Map

  18. BFE …means the water surface level of a watercourse or waterbody, referenced to an established datum, that corresponds to a flood event that has a one percent chance of being equaled or exceeded in any given year.

  19. Lowest Floor... • “...means the lowest floor of the lowest enclosed area, including basement. • An unfinished or flood resistant enclosure, usable solely for parking of vehicles, building access or storage in an areaother than a basement area is not considered a building’s lowest floor...

  20. ... Lowest Floor ...provided that such enclosure is not built so as to render the structure in violation of the applicable non-elevation design requirements of this ordinance.”

  21. Lowest Floor Zone AE Lowest Floor = Top of Subfloor

  22. Non-elevation design requirements • Flood Openings: All new construction and substantial improvement with fully enclosed areas below the lowest floor (excluding basements) that are usable solely for parking of vehicles, building access or storage, and which are subject to flooding,... ThisMEANS…

  23. Flood Openings... • ...shall be designed to automatically equalize hydrostatic flood forces on exterior walls by allowing for the entry and exit of floodwater.

  24. Flood Openings ... • Designs for meeting this requirement must meet or exceedthe following minimum criteria: • 1. Have a minimum of two openings on different sides with a total net area of no less than one square inch for every square foot of enclosed area subject to flooding; or

  25. Flood Openings … • 2. Be certified by a registered professional engineer or architect to comply with the guidelines for engineered openings in FEMA Technical Bulletin 1-93.

  26. Flood Openings ... • The bottom of all openings shall be no higher than one foot above grade. • Openings may be equipped with screens, louvers, valves or other coverings or devices provided that they permit the automatic entry and exit of floodwater.

  27. BFE Lowest Floor Opening * (typical) *The bottom of the openings are no higher than one foot above the adjacent grade. Zone AE Lowest Floor = Top of Subfloor

  28. Lowest Floor = Lowest Point Near the Foundation (Interior or Exterior) BFE Lowest Floor Opening * (typical) *The bottom of the openings are 3.5 feet above the adjacent grade. VIOLATION

  29. Comments on Flood Openings... • A window, a door or a garage door IS NOTconsidered an opening.

  30. Construction Standards All new or substantially improved structures shall have the lowest floor, including basement, elevated to or above the base flood elevation.

  31. Lowest Floor = Top of Slab Lowest Floor? Lowest Floor? BFE Zone AE

  32. Exercise:What is the lowest floor?

  33. Lowest Floor = Top of Slab Lowest Floor BFE Slab Fill Zone A

  34. Lowest Floor = Top of Slab Lowest Floor Lowest Floor BFE Zone AH

  35. Lowest Floor = Top of Subfloor BFE Lowest Floor Opening * (typical) *The bottom of the openings are no higher than one foot above the adjacent grade. Zone A

  36. BFE Lowest Floor Opening * (typical) *The bottom of the openings are no higher than one foot above the adjacent grade. Zone AE Lowest Floor = Top of Subfloor

  37. Lowest Floor = Top of Subfloor BFE Lowest Floor Opening * (typical) *The bottom of the openings are no higher than one foot above the adjacent grade. Zone A

  38. Lowest Floor = Lowest Point Near the Foundation (Interior or Exterior) BFE Lowest Floor Opening * (typical) *The bottom of the openings are 3.5 feet above the adjacent grade. Zone A

  39. Lowest Floor = Lowest Point Near the Foundation (Interior or Exterior) BFE Lowest Floor Opening * (typical) *The bottom of the openings are 3.5 feet above the adjacent grade.

  40. Lowest Floor = Lowest Grade Elevation within the Crawl Space BFE Lowest Floor Opening * (typical) The grade elevation within the crawl space is subgrade on all four sides. * The bottom of the openings are no higher than one foot above the adjacent grade. Zone A

  41. Lowest Floor = Top of Slab Garage Lowest Floor BFE Slab Opening * (typical) *The bottom of the openings are no higher than one foot above the adjacent grade. Zone A

  42. Lowest Floor = Top of Garage Slab Garage Lowest Floor BFE Opening * (typical) *The bottom of the openings are no higher than one foot above the adjacent grade. Zone A

  43. Lowest Floor BFE Basement Lowest Floor = Top of basement floor Zone A

  44. Lowest Floor = Lowest Horizontal Member Lowest Floor BFE Zone V

  45. Lowest Floor BFE Lowest Floor = Lowest Horizontal Member Zone V

  46. Lowest Floor = Bottom of the Slab Pad Machinery and Equipment is located above the BFE. BFE Lowest Floor Enclosure is 400 square feet with proper openings. Zone V

  47. Lowest Floor = Lowest Horizontal Member Machinery and Equipment is located above the BFE. BFE Lowest Floor Enclosure is 300 square feet and designed with break away walls. Zone V

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