Development, land disturbing activity, and encroachments in floodways shall not be authorized unless it has been demonstrated through hydrologic and hydraulic analyses required in accordance with Section 66-36A. of these regulations, that the proposed encroachment will not result in any increase in the base flood level during occurrence of the base flood discharge. If Section 66-36A. is satisfied, proposed elevation, addition, or reconstruction of a lawfully existing structure within a floodway shall also be in accordance with Section 66-76 of this chapter and the floodway requirements of N.J.A.C. 7:13.
The following are prohibited activities:
A. 
The storage of unsecured materials is prohibited within a floodway pursuant to N.J.A.C. 7:13.
B. 
Fill and new structures are prohibited in floodways per N.J.A.C. 7:13.
In Coastal High Hazard Areas and Coastal A Zones:
A. 
New buildings shall only be authorized landward of the reach of mean high tide.
B. 
The placement of manufactured homes shall be prohibited except in an existing manufactured home park or subdivision.
C. 
Basements or enclosures that are below grade on all sides are prohibited.
D. 
The use of fill for structural support of buildings is prohibited.
All new and replaced sanitary sewer facilities, private sewage treatment plants (including all pumping stations and collector systems) and on-site waste disposal systems shall be designed in accordance with the New Jersey septic system regulations contained in N.J.A.C. 14A and N.J.A.C. 7:9A, the UCC Plumbing Subcode (N.J.A.C. 5:23) and Chapter 7, ASCE 24, to minimize or eliminate infiltration of floodwater into the facilities and discharge from the facilities into flood waters, or impairment of the facilities and systems.
All new and replacement water facilities shall be designed in accordance with the New Jersey Safe Drinking Water Act (N.J.A.C. 7:10) and the provisions of Chapter 7 ASCE 24, to minimize or eliminate infiltration of floodwater into the systems.
Storm drainage shall be designed to convey the flow of surface waters to minimize or eliminate damage to persons or property.
Streets and sidewalks shall be designed to minimize potential for increasing or aggravating flood levels.
Subject to the limitations of these regulations, fill shall be designed to be stable under conditions of flooding including rapid rise and rapid drawdown of floodwater, prolonged inundation, and protection against flood-related erosion and scour. In addition to these requirements, when intended to support buildings and structures (Zone A only), fill shall comply with the requirements of the UCC (N.J.A.C. 5:23). Proposed fill and encroachments in flood hazard areas shall comply with the flood storage displacement limitations of N.J.A.C. 7:13.
In coastal high hazard areas and Coastal A Zones, alteration of sand dunes shall be permitted only when the engineering analysis required by Section 66-36D. of these regulations demonstrates that the proposed alteration will not increase the potential for flood damage. Construction or restoration of dunes under or around elevated buildings and structures shall comply with Section 66-83C of these regulations and as permitted under the NJ Coastal Zone Management Rules (N.J.A.C. 7:7).
The placement or storage of any containers holding hazardous substances in a flood hazard area is prohibited unless the provisions of N.J.A.C. 7:13 which cover the placement of hazardous substances and solid waste is met.