06/11/2007 Council Packet - Laserfiche WebLink

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3. South Section Street, Trail and Drainage Improvements This section of the roadway has few driveways and is higher in elevation. Either a rural style street, as exists now, or an urban street with curb and gutter could be built. The advantage of the curb street is that the Toss of trees along the right - of -way would be less. The trees and the curb would tend to encourage drivers to slow down as they travel through this area. We recommend that an urban style street be built. If a trail is desired along this section of roadway, we recommend placing it on the west side of the street to provide continuity with the proposed trail to the north. Tree Toss will be mitigated by planting new tress. There will be a very small amount of wetland loss on this section of the road. Drainage on this portion of the street will be handled by a conventional storm sewer system. Surface water treatment ponds would be required on the north end of this section, before water discharges to the channel. B. SANITARY SEWER 1. Southem Section of West Shadow Lake Drive For the undeveloped property south of the creek we recommend a conventional gravity sanitary sewer system be built. An 8 -inch gravity sanitary sewer would be extended north from Birch Street past the park, and 4 -inch services would be extended to future lots. 2. Northern Section of West Shadow Lake Drive The area north of the creek does not have sanitary sewer service. Because of the high groundwater in the area and the proximity to the lake shore, abandonment of the septic systems in this neighborhood is encouraged. The most opportune time to install a sanitary sewer is with the Street Reconstruction Project. Because of the shallow elevation of near -by sanitary sewer mains, a gravity system to serve this area is not feasible for the entire Project. We considered two types of sewer systems for this area; a conventional gravity sanitary sewer Page 7 13849.005