The provisions of this Part
7 do not require any changes or improvements to be made to lawfully existing structures. However, when an improvement is made to any existing structure, the provisions of §
70-90 shall apply.
The following provisions shall apply whenever any improvement
is made to an 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 base flood elevation (BFE).
B. No expansion or enlargement of an existing structure shall be allowed
within any AE Area that would, together with all other existing and
anticipated development, increase the BFE more than one foot at any
point.
C. Any modification, alteration, reconstruction, or improvement, of
any kind to an existing structure, to an extent or amount of 50% or
more of its market value, shall constitute a substantial improvement
and shall be undertaken only in full compliance with the provisions
of this Part 7.
D. Any authorized activity shall also address the requirements of the
34 Pa. Code, as amended, and the IBC and the IRC.
E. Any modification, alteration, reconstruction, or improvement of any
kind to an existing structure, to an extent or amount of less than
50% of its market value, shall be elevated and/or floodproofed to
the greatest extent possible.
F. Any modification, alteration, reconstruction, or improvement of any
kind that meets the definition of "cumulative substantial damage"
shall be undertaken only in full compliance with the provisions of
this Part 7.
[Amended 5-23-2017 by Ord. No. 2017-10]