New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Wt - Wetlands Programs
Chapter Env-Wt 600 - COASTAL LANDS AND TIDAL WATERS/WETLANDS
Part Env-Wt 609 - TIDAL SHORELINE STABILIZATION
Section Env-Wt 609.07 - Tidal Shoreline Stabilization Using New Hard-Scape or Rip-Rap
Universal Citation: NH Admin Rules Env-Wt 609.07
Current through Register No. 13, March 27, 2025
(a) The department shall not approve any tidal shoreline stabilization plan that proposes to install new rip-rap unless:
(1) The applicant demonstrates that:
a. Anticipated turbulence, flows, restricted
space, fetch, or similar factors render soft stabilization methods physically
impractical; and
b. Natural areas
or naturalized soft shoreline stabilization on neighboring properties will not
be damaged by the placement of the proposed rip-rap; or
(2) The rip-rap is a component used as a sill
to stabilize the toe, but is not the primary or dominant component of a living
shoreline stabilization design.
(b) The applicant proposing to install new rip-rap shall include with the application:
(1) Evidence of erosion that cannot be
stabilized solely with a soft stabilization design;
(2) A description of anticipated turbulence,
flows, restricted space, fetch, or similar factors that render vegetative and
diversion methods physically impractical;
(3) An assessment of the potential for the
proposed rip-rap to erode the shoreline of neighboring properties, based on an
examination of the shoreline and modeling based on tides, average wave height
and force, and the energy absorption or deflection ability of the proposed
rip-rap;
(4) Specification of:
a. Minimum and maximum stone sizes;
b. Existing contours and final proposed
contours;
c. The volume of rip-rap
to be used;
d. The minimum and
maximum rip-rap thickness; and
e.
The type and thickness of bedding for the stone;
(5) Cross-section and plan views of the
proposed installation; and
(6) The
relationship of the project to fixed points of reference, abutting properties,
and features of the natural shoreline.
(c) In addition to plan requirements specified in Env-Wt 311, applications to use rip-rap adjacent to tidal water bodies shall:
(1) Include stamped engineering
plans; and
(2) If the state holds
fee simple ownership, a stamped survey showing the location of the mean high
water tide line on the shoreline and the footprint of the proposed
project.
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