09/28/2009 Council Packet - Laserfiche WebLink

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• and no soft spots or subgrade failure has been observed. The public works departments of both cities perform regular maintenance of Pine Street. A new gravel surface was placed on Pine Street in 2006 consisting of approximately 5,200 tons of gravel. Each year approximately 8,000 gallons of a dust control agent is applied to Pine Street. Pine Street is re- graded with a motor grader approximately 30 times each year. The material and labor costs and resources are split 50% - 50% between the City of Lino Lakes and Columbus. It is recommended that Pine Street be improved by constructing a 3.5 inch thick bituminous surface for a 24 foot wide rural section east of the 4th Avenue /Jodrell Street intersection and 22 feet wide west of 4th Avenue /Jodrell Street with an approximately 1 foot shoulder on either side from Lake Drive to the westem terminus or 4th Avenue /Jodrell Street. The work would begin by replacing 3 cross culverts in poor condition and salvaging and replacing two culverts at elevations recommended by the Rice Creek Watershed District. Then about 1 inch of gravel would be added for shaping purposes. The road would then be graded, shaped, and compacted to a uniform width and crown. The bituminous paving would be constructed in a two inch base course and a one and a half inch wear course, each layer being thoroughly compacted before placing the next layer. Gravel shouldering would be added for about a 1 foot width and existing driveways would be matched for elevation. STORMWATER MANAGEMENT: The Rice Creek Watershed District has Water Quality, Volume Control, and Rate Control rules that the paving of Pine Streets fall under. The Rice Creek Watershed Districts rule RMP -3 applies to the project and indicates that a public linear project must meet Water Quality and Volume Control requirements. However, an exemption for a project that paves a rural section gravel road similar to the Pine Street paving improvements exists if the ditch is maintained and does not discharge directly to a wetland or another sensitive water body. City staffs have met with the Rice Watershed District representatives to obtain a determination on the stipulations of the exemption noted above. Per a memo attached in the appendix and dated September 1, 2009 from the Rice Creek Watershed District Engineer, Houston Engineering Inc., the Pine Street Paving project has been exempted from any Water Quality and Volume Control rules. 2 0014292.005