Section IX - Special Requirements
A. Erosion and Sediment Control Regulations
1. The Planning Board may require the submission of an erosion and sediment control plan for the purpose of controlling soil erosion and sedimentation in surface water resulting from site construction and development. In determining if a plan is required, the Planning Board shall consider the potential impact of the project and ascertain if any of the following conditions are proposed:
a. A cumulative disturbed area exceeding 20,000 square feet;
b. Construction of a street or road;
c. Disturbed critical areas.
2. The following standards shall be applied in planning for erosion and sediment controls:
a. All erosion and sediment control measures in the plan shall meet the design standards and specifications set forth in the "Erosion and Sediment Control Design Handbook for Developing Areas of New Hampshire" as amended and adopted by the Rockingham County Conservation District.
b. Whenever practical, natural vegetation shall be retained, protected or supplemented. The stripping of vegetation will be done in a manner that minimizes soil erosion.
Appropriate control measures shall be installed prior to removal of vegetation.
d. The area of disturbance shall be kept to a minimum. Disturbed areas remaining idle for more than thirty (30) days shall be stabilized.
e. Measures shall be taken to control sediment and retain it within the project area. Sediment in runoff water shall be trapped and retained within the project area using approved measures. Very poorly drained soils and waterbodies shall be protected from sediment.
f. Off-site surface water and runoff from undisturbed areas shall be carried non-erosively through the project area, or diverted away from disturbed areas where feasible.
g. Naturally occurring streams, channels, and wetlands shall be used for conveyance of runoff leaving the project area.
h. All temporary erosion and sediment control measures shall be removed after final site stabilization. Trapped sediment and other disturbed soil areas resulting from the removal of temporary measures shall be permanently stabilized within thirty (30) days.
3. The applicant shall bear final responsibility for the installation, construction, and disposition of all erosion and sediment control measures required by the provisions of this regulation. The Planning Board may require a bond or other security in an amount and with surety conditions satisfactory to the Board, providing for the actual construction and installation of such measures within a period specified by the Planning Board and expressed in the bond or other surety. Site development shall not begin before the erosion and sediment control plan is approved. Erosions and sediment control measures shall be installed as scheduled in the approved plan.
4. The applicant shall maintain all soil erosion and sediment control measures, including devices and plantings as specified in the approved plan, in effective working condition. Responsibility for maintenance by subsequent owners of the property on which permanent measures have been installed shall be included in the deed and shall run with the land. If the owner fails adequately to maintain such measures, the town shall have the authority to perform required maintenance. The cost of such work shall be borne by the owner.
5. Inspection shall be made by an agent of the Planning Board during development to ensure compliance with the approved plan and that control measures are properly installed or performed and maintained. This shall be done at the expense of the developer.
B. Traffic Impact Analysis
1. Traffic Impact Analysis: All proposed non-residential and multi-family development proposals shall be reviewed by the Board to ascertain that adequate provisions have been made by the owner of his/her agent for traffic safety. To facilitate this review, the applicant may be required to provide a traffic impact analysis when deemed necessary by the Board due to the size, location or any other traffic-generating characteristic of the development. Traffic impact studies shall address each of the following items:
a. Traffic circulation, access and egress, adequacy of adjacent streets and intersections, entrances and exits, traffic flow, sight distances, accident statistics, curb cuts, turning lanes, and existing or recommended traffic signalization.
b. Pedestrian safety, circulation, access and egress.
c. Off-street parking and loading.
d. Emergency vehicle access.
e. Off-site improvements necessitated by the development.
2. The Planning Board may retain the services of a consultant qualified in traffic planning to review the traffic impact analysis and to ensure that adequate provisions are made in the development plan to reduce or eliminate those impacts. The Board may further require, pursuant to RSA 676:4 I(g), that the developer reimburse the Town for reasonable costs of this review. No plan shall be approved until such fees, if applicable, are paid in full.
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