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A 25'pavement edge radius is needed for the entrance into the project in orders to construct the preferred <br /> entrance.style O pe. However, adequate access is provided by constructing a one-:way street with two <br /> travel lanes in both directions (in/out):. <br /> 10.. Provide berms where grades exceed 3% in accordance with Town Regulations. . <br /> Completed as requested. Berms have been added to all areas of the proposed road where grades exceed <br /> 3.%(see sheet 5). A Typical Roadway Cross Section has also been provided(see Sheet 6). Note, the <br /> typical section reflects both drainage conditions to ilhistrate the two diffe�ent tr•eatinents. Separate <br /> roadway sections for both berrned and open section will be provided in the Definitive Subdivision Plan. <br /> 11. Source and accuracy of the topography. <br /> A topographical survey was conducted by Warwick&Associates, Inc. in January 2001. However, the <br /> survey did not cover the entire R3-acre parcel-of land and was not tied into the Towns coordinate system <br /> datum. We have verified that the two separate topographic surveys are in corrfo7 rmio)with each other and <br /> have provided a copy of both surveys for the.Review Engineers verification. <br /> 12..Drainage structure rims, structure positioning,pipe inverts,pipe sizes, and pipe types have not <br /> been are not noted. <br /> All of these construction details will be specified in.the Definitive Subdivision Plan for review. <br /> 13. Catchbasin connections to street paving and frame and grate types. <br /> Curb and gutter will direct runoff to the deep-saanp catchbasins where grades exceed 3%. Where grades <br /> are-less than 3% storrnwater will be directed to the inlets by grass-channels (see Plan). <br /> B. Sheet SK-2 <br /> 1. Show lot line,dimensions and directions. <br /> Completed,as requested, see sheet 3 of the Plan. <br /> 2. Grading <br /> We note,,.the previous grading shown was a prelinunmy mass-grading plan for roadway slopes and' <br /> general site contouring, which is generally adequate for conceptual design. However, due to the Review <br /> Engineers concerns a More detailed rough gradingplan has been developed and provided oiz.the Plan as <br /> requested. <br /> a. Grading through buildings: <br /> The grading has been revised to show no grading through buildings. <br /> b. Lot.10 garage'flooding concern. <br /> Response.Letter Horsley Witten Group <br /> Main Street Village(Lettie Lane)Mashpee,MA 5 March 5,2004 <br /> Horsley Witten Group _ <br />