[Ord. 974, 3/17/2016]
Existing structures and/or uses located in the Floodway District shall not be expanded or enlarged unless the effect of the proposed expansion or enlargement on the floodway elevation or velocities is fully offset by accompanying stream improvements. A hydrology and hydraulic study is also required to prove no rise in elevation. Said plans must be reviewed by the Borough Engineer, and technical proof of such offsets must be supplied by the applicant.
[Ord. 974, 3/17/2016]
1. 
Existing structures and/or uses located in the Flood-Fringe District may be expanded or enlarged as follows:
A. 
Single-family residential structures may be increased in size, but in no event shall such expansion exceed 50% of the ground-level square footage of the structure at the effective date of this chapter.
B. 
Other structures or uses may be expanded, provided that the applicant provides sufficient data showing that the expansion will not increase the floodplain elevation or flood velocities or that accompanying improvements or facilities will offset any hypothetical increase in elevation or velocity.
[Ord. 974, 3/17/2016; as amended by Ord. 976, 6/16/2016]
Any modification, alteration, repair, reconstruction, or improvement which would aggravate flooding or flood hazards or increase the floodplain elevation or velocity to an existing structure located in the Flood-Fringe District and is less than 50% of the market value shall be floodproofed to the greatest extent possible. Any modification, alteration, repair, reconstruction, or improvement which is more than 50% of the market value must come into full compliance with the provisions of Chapter 8. An existing structure, if damaged (including meeting the definition of "substantial damage"), deteriorated, or destroyed by any means, including floods, may be rebuilt in accordance to and in full compliance with the provisions of Chapter 8. Residential structures must have all new, expanded, or enlarged portions of the structure meet the provisions of this chapter. Elevation requirements in Part 6 must be met. Nonresidential structures must have all new, expanded, or enlarged portions meet the provisions of this chapter. Elevation and dry floodproofing requirements in Part 6 must be met.