N.H. Admin. Code § Env-Wt 514.07

Current through Register No. 50, December 12, 2024

Section Env-Wt 514.07 - Bank Stabilization Construction Project Classification

(a) The following projects shall be classified as minimum impact:

(1) Any bank stabilization project of less than 50 LF, at low flow, and no in-channel work, if designed by a certified wetland scientist or a professional engineer;

(2) Any soft vegetative bank stabilization, bioengineered bank stabilization, or semi-natural form of less than 200 LF designed by a professional engineer on any size watercourse, when the applicant participates in a pre-design submittal meeting with department wetland bureau staff and the application is submitted through the minimum impact expedited review process; and

(3) Repair or replacement in-kind of an existing legal retaining wall that:

a. Is done in the dry;

b. Results in no change in height, length, location, or configuration; and

c. Adds no more than 6 inches of width.

(b) The following projects shall be classified as a minor impact:

(1) Any project less than 50 LF that does not meet the minimum impact criteria;

(2) A bioengineering project that is 200 LF or greater when designed by a professional engineer;

(3) Any other bank stabilization project that is 50 LF or more to less than 200 LF in length; and

(4) Any semi-natural design bank stabilization project of less than 200 LF in length, where greater than 75 percent of the project is designed using soft bank stabilization components that includes natural plants, dormant stakes, fiber rolls, and native wood logs.

(c) The following projects shall be classified as a major project:

(1) A semi-natural design bank stabilization project of 200 LF or greater or where greater than 25 percent of the project is using hard scape components; and

(2) Any other project that does not meet the minor bank stabilization criteria.

N.H. Admin. Code § Env-Wt 514.07

Derived from Volume XXXIX Number 28, Filed July 11, 2019, Proposed by #12805, Effective 12/15/2019, Expires 12/15/2029.

Amended by Volume XL Number 2, Filed January 9, 2020, Proposed by #12954, Effective 12/24/2019, Expires 12/24/2029.

Amended by Volume XL Number 41, Filed October 8, 2020, Proposed by #13124 Effective 10/23/2020, Expires 10/23/2030.