4.12. SR 04-17-2017 - Laserfiche WebLink

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PART 2-PRODUCTS(Not Used) PART 3 -EXECUTION 3.1 MECHANICAL EQUIPMENT RESTRICTIONS A. Trails are to be constructed using manual labor and low impact mechanical equipment such as mini-dozers, mini-excavators, and mini-skid steers. 1. Mechanized equipment including cutting blades or attachments shall not exceed 48 inches in width. Removing trail anchors, such as trees that define the sides of the trail,to allow the mechanical equipment to move more freely and efficiently will not be allowed. Visual damage to vegetation, whether woody or herbaceous, must be avoided outside the trail corridor. 2. Use and types of mechanical equipment, if any, furnished by the Contractor will need Owner approval prior to construction. 3. Only Owner approved site access shall be used. 3.2 CLEARING AND GRUBBING A. Tree Cutting Diameter Limits 1. All vegetation equal to or greater than 2 inches caliper at 6 inches above the ground may not be cut down or removed without the consent of the Owner. B. Trimming Branches 1. Branches shall be trimmed within the trail clearance zone and trail ceiling limits. 2. The practice of natural target pruning shall be followed when trimming branches. C. Tree and Brush Removal 1. Vegetation within the trail tread must be dug out. Cutting the vegetation back to ground within the trail tread is not acceptable as it may become dangerous when the trail tread compacts. The hole shall be filled with non-organic material to match the surrounding grade. 2. All other vegetation outside the trail tread must be cut back to 2 inches or less above grade. 3. All trees,brush,and stumps,and root wads shall be hand dragged a minimum of 30'from edge of trail(or more in open areas). Cut ends shall face away from trail.Woody debris shall be scattered to not exceed a height of 2 feet in height.All trees greater than 2"dbh to be limbed on one side so tree lies flat on ground. D. Clearing the Trail Tread 1. The trail tread shall be raked and the removed organic material placed uphill for use later. 3.3 TRAIL TREAD CONSTRUCTION 1. The Contractor shall typically follow the five basic steps below to constructing a full bench-cut sustainable trail. a. Step 1:Dig the Tread 1) The trail tread shall be constructed by cutting the entire specified trail width into the side slope.The finished profile grade elevation is defined as the existing ground at the compacted mineral soil elevation after removal of organic materials.