1. (a) The construction or modification of a boathouse over a pre-existing dug-in basin shall be a minimum impact project only if all of the following criteria are met:

   1. (1) The construction or modification is in accordance with Env-Wt 515.05;
   2. (2) For a modification project, the structures are existing legal structures;
   3. (3) No portion of an existing boathouse was made suitable for use as a dwelling contrary to RSA 482-A:26 prior to or subsequent to the effective date of the original prohibition, May 28, 1969;
   4. (4) No additional boat slips will be provided as a result of the project; and
   5. (5) There is no dredging associated with the project.

2. (b) The modification of a boathouse over public submerged lands shall be a minimum impact project only if all of the following criteria are met:

   1. (1) There is no increase in the exterior dimensions of the boathouse;
   2. (2) The boathouse and any associated docking structures are existing legal structures;
   3. (3) No portion of the existing boathouse was made suitable for use as a dwelling contrary to RSA 482-A:26 prior to or subsequent to the effective date of the original prohibition, May 28, 1969;
   4. (4) No additional boat slips will be created as a result of the project; and
   5. (5) The boathouse modification does not include dredging.

3. (c) The construction or modification of a boathouse over a pre-existing dug-in basin shall be a minor impact project if all of the criteria of (a), above, are met with either of the following exceptions:

   1. (1) Additional boat slips will be provided as a result of the project but the total number of existing and proposed slips on the property will not exceed 4; or
   2. (2) Less than 20 CY of material will be dredged.
4. (d) A project that does not meet any of the classification criteria of (a) through (c), above, shall be a major project.

Source. #12805, eff 12-15-19; amd by #13124, eff 10-23-20; ss by #13776, eff 10-13-23; ss by #14389, eff 9-25-25, EXPIRES: 9-25-35