F-6 Exhibit 5 Tree Treatment Illustration for Chainsaw Topping.pdf

Exhibit 5 is a technical illustration document detailing precise tree treatment procedures for chainsaw topping, specifically for trees in height ranges of 50-85 feet. The illustrations provide two distinct approaches: Illustration 1A involves removing most live branches (retaining 0-3 branches), while Illustration 1B requires retaining at least 9 live branches. For trees with 10-14" diameter at breast height (DBH), the specification mandates removing all live limbs below the cut for 10 feet.

The document includes additional technical details about the chainsaw topping process, specifically requiring a V-type notch that is a minimum of 6 inches deep. The notch should extend across the full length of the tree top, with a side view and top view diagram demonstrating the precise cutting technique. The document notes that some Administrative Units may have specific requirements for the 6-inch deep cut, which will be indicated on the individual task order.