[Ord. 782, 9/17/1986,
§ 501; as amended by Ord. 976, 1/16/2008]
1.
Structures and uses existing in any identified floodplain area prior
to the enactment of this chapter may continue subject to the following
provisions:
A.
No expansion or enlargement of an existing structure or use shall
be allowed within any identified floodway that would cause any increase
in flood heights.
B.
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 chapter.
C.
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 floodproofed to the
greatest extent possible.
2.
The above activity shall also address the requirements of 34 Pa.
Code, Chapters 401 — 405, and the 2006 IBC, §§ 3402.1
and 1612.4, and the 2006 IRC, §§ R105.3.1.1 and R323.1.4.
