12/11/2002 ZONING BOARD OF APPEALS Decisions

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Meetinghouse Hill Page three to pass without leaving the paved surface. A minimum width of 16' is recommended. 5. That portion of the proposed road that extends between the dwellings on Lots 8 and 9 appears to drain away from the intersection. However, no provision is shown on the plan for control of runoff at the end of the pavement. A detail should be provided to show how this will be done to prevent erosion of the end of the pavement. 6. The proposed grading to the rear of the dwellings on Lots 4 and 5 runs in a southerly direction that would place it directly in the path of the leaching area for the on-site sewage disposal system for Lot 2. This drainage area is quite large and could affect the proper functioning of the system if it should become saturated due to surface runoff. It is recommended that the slopes be provided with a swale at the base that will direct the surface runoff toward the lowest portion of the drainage easement on Lot 5 and away from the septic system on Lot 2. 7. It is recommended that the Typical Roadway Cross Section be revised to show a pavement thickness of 1-3/4" for the binder course and 1-1/4" for the top course. A 1" top course may tend to come apart if the proper aggregate is not used or if it is not properly compacted and rolled. The section should also indicate the minimum depth of cover over the water pipe in accordance with Mashpee Water District requirements. 8. The Precast Conc. Catch Basin detail shows a section of concrete curb behind each basin. If Cape Cod Berm is used along the edges of the road a single piece of curbing is not recommended. The Cape Cod Berm should be extended around the rear of the basin grate in a continuous fashion. References to the concrete curb should be removed from all sheets. 9. A 12" x 12" cement concrete collar should be placed around each catch basin casting after the road binder has been placed. The collar should extend to the top surface of binder. The wearing surface should then be placed over the collar to provideafinal surface. 10. Show the discharge elbow from the catch basin as having a 1" diameter hole in the top to prevent siphoning. Make the elbow the same size as the 12" HDPE (pipe). 11. The engineer may want to look at a relocation of the drainage line that discharges from two manholes into the drainage area on Lot 5. The trench excavation for this line will be deep because of the pitch of the drainage pipe. If the drainage line could be relocated to along the lot line between Lots 4 and 5, excessive excavation for the trench could be reduced significantly. The length of the line would be about the same and could result in lower construction cost. A drainage easement 20' wide would be required along the lot line. Sheet 3 of 4 Site Development Plan 1. This plan shows the proposed location of each dwelling, garage and on- j site sewage disposal system. The plan appears to conform to the minimum standards for Title 5 systems, however, full compliance is required in accordance with the provisions of Title 5 and the rules and regulations of the Mashpee Board of Health. 2. This sheet provides a table that reports matters of Zoning Compliance. A comparision is made between the standard lot size, lot frontage and