The following provisions shall apply whenever any improvement is made to all existing structure located within any identified floodplain area:
A. No expansion or enlargement of an existing structure shall be allowed within any floodway area that would cause any increase in the elevation of the 100-year flood.
B. Any modification, alteration, reconstruction, or improvement, of any kind to an existing structure, to an extent or amount of 50 percent or more of its market value, shall constitute a substantial improvement and shall be undertaken only in full compliance with the provisions of this Chapter.
The above activity shall also address the requirements of the 34 Pa.Code, Chapters 401–405, as amended and the 2003 IBC (§§ 3402.1 and 1612.4) and the 2003 IRC (§R323.1.4).
C. Any modification, alteration, reconstruction, or improvement of any kind to an existing structure, to an extent or amount of less than 50 percent of its market value, shall be elevated and/or floodproofed to the greatest extent possible.
D. Any modification, alteration, reconstruction, or improvement of any kind that meets the definition of “repetitive loss” shall be undertaken only in full compliance with the provisions of this Chapter.
E. The requirements of 34 Pa.Code, Chapters 401–405, as amended and the 2003 IRC (§§R102.7.1, R105.3.1, and Appendices E and J) or the latest revision thereof and the 2003 IBC (§§ 101.3, 3403.1 and Appendix G) or the latest revision thereof shall also be utilized in conjunction with the provisions of this Section.
(Ord. 78, 3/5/2009, § 6.01)