2015-01-27_PWETC_AgendaPacket - Laserfiche WebLink

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This road is located within the Capital Region Watershed District (CRWD). CRWD requires that this project provide volume control and treatment for the storm water runoff. This can be accomplished through a variety of potential Best Management Practices (BMPs) for stormwater management. City staff is recommending the installation of several hundred feet of perforated pipe along the east -west portion of Victoria Street that will allow rate control, provide some infiltration and also address some drainage concerns in the area. The outlet to this new system is proposed to drain into the very southeast corner of Pioneer Park. A pretreatment cell will be installed at this outlet to provide treatment of the stormwater before discharging into the existing wetland in this area. A raingarden is also proposed in the northwest corner of Larpenteur Ave and Victoria St to provide infiltration, rate control and treatment of stormwater before draining into the Larpenteur Ave stormwater system. Erosion Control As part of the project plans and specifications, staff is required to prepare a storm water pollution prevention plan (SWPPP) for the purposes of enforcing erosion and sediment control rules. The SWPPP will include erosion and sediment control methods that will be implemented throughout the project. Silt fence, bio -rolls, erosion control blanket, and other best management practices will be utilized where direct runoff might occur. Inlet protection will be used to protect both the existing and new catch basins during construction. Street sweeping will occur, as needed, on all paved street surfaces throughout the project, including intersecting streets. Exposed soils and aggregate material will be watered as needed as a dust -control measure. An erosion and sediment control plan sheet and storm water pollution prevention plan will be created during the design phase of this project. Immediate turf establishment in areas of soil disturbance will be required such as placing seed and erosion control blanket. After street and utility work is completed, sod and/or hydro mulched seed will be placed as the permanent turf establishment in all disturbed areas. The City, in coordination with the watershed district, will closely monitor all erosion and sediment control measures throughout the construction process. The selected contractor will be required to install all preventative measures and maintain them as required by the City, CRWD, MPCA, and other regulatory agencies. C. Private Utilities Private utility companies have been notified that this project is being considered for construction in 2015. It is their responsibility to relocate facilities within the right-of-way that interfere with the City's proposed project. D. Driveways As a part of our plan preparation, staff reviewed the size, location and material of all existing driveways in an effort to bring them into conformance with City Code at the time of reconstruction. Staff will work with residents to provide a final design that minimizes any additional impact to existing driveways and minimizes stormwater runoff that traverses down the driveways from the roadway. Project P -ST -SW -15-02 Victoria Street Reconstruction i� Feasibility Report