Laserfiche WebLink
2572 <br />746 Minnesota 2020 Standard Specifications <br />2572.3 CONSTRUCTION REQUIREMENTS <br />A Protecting and Preserving <br />Protect and preserve the following: <br />(1) Specimen Trees <br />(2) Threatened and endangered plants listed on the Federal and State threatened and <br />endangered species list <br />(3) Vegetation as required by the Contract <br />(4) Trees, Brush, and natural scenic elements within the Right-of-way and outside the limits <br />of clearing and grubbing in accordance with 2101.3, “Clearing and Grubbing, <br />Construction Requirements” <br />(5) Other vegetation as directed by the Engineer <br />Do not place temporary Structures, store Material, or conduct unnecessary construction <br />activities within 25.25 feet outside of the dripline of trees designated for preservation, unless otherwise <br />approved by the Engineer. <br />Do not place temporary Structures or store Material, including common borrow and topsoil, <br />outside of the construction limits in areas designated for preservation, as required by the Contract or as <br />approved by the Engineer. <br />Do not place or leave waste Material on the Project, including bituminous and concrete waste <br />that would interfere with performing the requirements of 2106.3D, “Preparation of Embankment <br />Foundation,” or 2575, “Establishing Vegetation and Controlling Erosion.” The Department defines <br />concrete waste as excess Material not used on the Project, including Material created from grinding <br />rumble strips. Dispose of excess Material in accordance with 2104.3D, “Disposal of Materials and Debris.” <br />A.1 Temporary Fence <br />Place temporary fences to protect vegetation before starting construction. Place <br />temporary fence at the construction limits and at other locations adjacent to vegetation <br />designated for preservation as required by the Contract or as approved by the Engineer. The <br />Department will provide tree protection signs. Place tree protection signs in accordance with any <br />of the following: <br />(1) Along the temporary fence at 50 foot intervals <br />(2) At least 2 signs per fence <br />(3) As directed by the Engineer <br />Do not remove the fence until all Work is completed or until approved by the Engineer. <br />Ensure the fence prevents traffic movement and the placement of temporary facilities, <br />Equipment, stockpiles, and supplies from harming the vegetation. <br />A.2 Clean Root Cutting <br />Cleanly cut tree roots at the construction limits as required by the Contract or as <br />directed by the Engineer. <br />Immediately and cleanly cut damaged and exposed roots. Cut back damaged roots of <br />trees designated for protection to sound healthy tissue and immediately place topsoil over the <br />exposed roots. Immediately cover root ends exposed by excavation activities with 6 inches of <br />topsoil as measured outward from the cut root ends . Immediately (within 5 minutes) treat cut <br />oak roots with a wound dressing Material consisting of latex paint or shellac. Limit cutting to a <br />minimum depth necessary for construction. Use a vibratory plow, or other approved root cutter