7/26/2018 CONSERVATION COMMISSION Minutes

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6:03 Southworth Cape Development LLC, 0 Sampsons Mill Road. Proposed construction of retaining wall, stormwater bio-retention area, a small portion of a townhouse, rip rap aprons and associated grading work. RDA Resource Area: Riverfront, Santuit River, Outer Riparian Zone John Levelle, Baxter Nye Engineering, represented the applicant. The proposal is to build 11 townhouses, two units each. The project is moved as far away from the river as they could except for a small amount of work in the outer riparian zone. He said the project meets the Mashpee Zoning bylaws. There will be some sedimentation controls put in before construction. The Agent reviewed the area of the project on map showing the riparian areas and noted they have stormwater control protocols. The project meets all the performance standards for riverfront. No comments from the public Motion: Mr. Sweet moved a Negative Determination, seconded Mr. Smith. Vote unanimous 4-0 6:06 Town of Mashpee Department of Public Works, 0-213 Sampsons Mill Road. Proposed culvert replacement and road work on right-of-way. NOI Resource Area: BVW, River Bank, Land Under Ocean Amanda Houle, Tighe & Bond, represented the applicant and reviewed the proposed project stating the project is comprised of the replacement of an existing stone masonry box culvert with a modified cast iron pipe inlet and headwall which is currently in structural failure with a new precast concrete three side rigid frame structure. She noted the Santuit River is a cold-water fishery connecting Santuit Pond to Popponesset Bay. The project includes the replacement of an existing cast iron pipe inlet and stone box culvert with a new open bottom structure and new headwalls to restore the streams continuity with the goal of improving fish and wildlife passage. Upon completion of the work, the disturbed areas will be stabilized to match pre-construction conditions and erosion control measures will remain in place and in good working condition until the soils have stabilized. Catherine Laurent, DPW Director, stated the traffic will be detoured during the construction, resurfacing, and drainage installed. Barnstable is a partner in this project. The Agent stated this project is a much needed upgrade and will greatly improve the flow. He noted the time restriction/time frame. The Agent reviewed the pictures associated with the project. He noted the large boulders in the area. Amanda Houle said she would investigate this and the Agent suggested checking with the Division of Marine Fisheries to see if they should be retained. The Agent stated this is much needed work due to a significant impediment to the fish passage. It is an outdated structure and opening it up will greatly improve the flow and improve the cold-water fishery. He spoke about the time frame restrictions and made a recommendation to place a time restriction from March to October. No comments from the public Motion: Mr. Sweet moved to Close and Issue with the condition that the timeframe associated with the species that run in that river be honored. Seconded by Mr. Smith. Vote unanimous 4-0 6:09 Edward J. Maher, 39 Uncatena Road. Proposed planting of native shrubs and herbaceous perennials. At request of Commission, continued from 6/28 for a revised landscape mitigation plan. RDA