06/11/2007 Council Packet - Laserfiche WebLink

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1. Northern Section Street, Trail and Drainage Improvements In order to meet the first two goals stated above, staff is recommending that a 28 -foot wide (face of curb to face of curb) street be built with concrete curb and gutter. An 8.5 -foot trail would be placed on the west side of the street, approximately 6 feet behind the curb. The street is proposed to be centered in the right -of -way. This type of street takes up significantly Tess room than a similar width street with a rural cross section. The ditches on each side of the rural street would require a minimum of 20 feet of grading beyond the street in order to have standard ditches. Shadow Court and Sandpiper Lane are proposed to be built to match their existing width. A surmountable concrete curb and gutter is recommended to control runoff and provide a solid edge between the street and the lawns. Where ditches or low areas occur along this section of the street, the back of the curb would be lowered or flattened to allow surface water to drain into these areas, thus providing enhanced infiltration and water treatment. On this northern section of the street, we would recommend restricting parking to one side of the street. This will allow better emergency vehicle access than allowing parking on both sides of the street. It is recommended that a cul -de -sac be constructed on the north end of the street, and on the end of West Shadow Lake Court. An agreement with Anoka County Parks is needed to allow these. If a trail is desired along this section of roadway, we recommend placing it on the west side of the street. The typical trail would be 8.5 feet wide, and it would be located 6 feet behind the curb. In some areas this typical section may need to be modified to minimize tree Toss. Low retaining walls, right -of -way acquisition and grading easements may be required in order to build this trail. Tree loss would be mitigated by planting new trees. Page 5 13849.005