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Town of Mashpee Conservation Commission <br /> 16 Great Neck Road North <br /> Mashpee, MA 02649 <br /> them with an elevated platform and raised walkways supported by pilings, minimizing permanent ground <br /> impacts while restoring and enhancing dune habitat. <br /> Major Project Revisions and Enhancements—252 Shore Drive, Concert <br /> Ms. Raddatz described several significant updates made since the last public hearing, based on Commission <br /> feedback and staff recommendations. These revisions are documented in a revised scope and waiver letter. <br /> Key updates include: <br /> 1. Expanded Construction Methodology: <br /> o Detailed construction plans now identify the limit of work, construction access, <br /> staging/laydown areas, sediment controls, and construction sequencing. <br /> o Erosion control will include a trenched silt fence with staked straw bales around all <br /> disturbed areas. <br /> • Consolidated Mitigation Area: <br /> o The mitigation and restoration zones were merged into one continuous area around the tent <br /> site rather than three separate patches. <br /> o This area will be planted with native dune and beach grass, and invasive plantings will be <br /> removed and replaced with native grass. <br /> A total of 4,723 square feet will be restored within the coastal dune and flood zone. <br /> • Structural Modifications: <br /> o Removal of a northeast wooden stairway and southeast walkway, reducing impacts by <br /> approximately 53 sq. ft. <br /> o Addition of a 222 sq. ft. ADA-compliant emergency egress ramp at the walkway's end. <br /> o Elimination of wood fencing and other unneeded site elements that could impede <br /> construction or dune restoration. <br /> o Confirmation that no lattice or breakaway panels will be installed below the new elevated <br /> tent; grass will grow directly to the structure's base for stabilization. <br /> • Soil Borings: <br /> o Three temporary soil borings are proposed to support structural design. Each borehole will <br /> be 4-6 inches wide and up to 10 feet deep, drilled using a small, tracked rig that travels over <br /> temporary track pads to protect vegetation. <br /> o Borings will occur within existing disturbed areas, when possible, though two are planned <br /> within the dune to collect essential soil data for foundation design. <br /> Environmental and Construction Considerations—252 Shore Drive, Concert <br /> The applicant emphasized that these revisions do not increase permanent impacts to any resource areas, <br /> including coastal dune, coastal bank, or land subject to coastal storm flowage. <br /> Temporary impacts are limited to the buffer zones and will be fully restored post-construction. The project will <br /> also result in a net reduction of impervious surfaces, as over 4,000 sq. ft. of existing concrete will be removed. <br /> Construction will primarily access the site via the existing crushed shell walkway, with timber mat pads <br /> providing stable ground for heavy equipment such as cranes and excavators. The demolition of the existing tent <br /> 6 <br />