Section Env-Wt 512.04 - Breakwater Design Requirements In addition to meeting all applicable design requirements established in Env-Wt 300, the following design requirements shall apply to breakwaters:
(a) The height of the breakwater shall not exceed 3 feet above the normal high water line;(b) The width of the breakwater at its highest point shall not exceed 3 feet;(c) The side slopes of the breakwater shall be 1:1.5, rise to run, or steeper;(d) The sides and top of the breakwater shall have irregular surfaces to diffuse wave activity;(e) The breakwater, when measured from the normal high water line, shall have:(1) No point more than 50 feet from the normal high water line;(2) A total length of no more than 70 feet; and(3) A gap of 6 feet or more between the breakwater and shoreline;(f) The proposed configuration for the breakwater shall be the least impacting option available for breakwater construction for that site;(g) No portion of the breakwater, including any portion underwater, shall be placed within 20 feet of an abutting property line or its imaginary extension into the water; and(h) The breakwater shall be constructed of stone, concrete, wood, or other inert materials, consistent with the individual conditions of each site.N.H. Code Admin. R. Env-Wt 512.04
Derived from Volume XXXIX Number 28, Filed July 11, 2019, Proposed by #12805, Effective 12/15/2019, Expires 12/15/2029.