C04-4 STD_912-02_Clearing_Limits_Brushing.pdf

This document is a U.S. Department of Agriculture Forest Service Standard Trail Plan specification sheet for clearing limits and brushing operations.

The document establishes standardized guidelines for trail maintenance activities, specifically defining the physical dimensions and methods for clearing vegetation along trails. The specification sheet includes a data table for recording typical clearing identifiers, clearing methods, and brushing limits with measurements for uphill width (J), downhill width (K), and clearing height (L), as well as mowing limits for uphill width (M) and downhill width (N). A cross-sectional diagram illustrates the spatial relationship between brushing limits, clear zones, mowing limits, and the trail itself, showing where vegetation must be removed relative to the centerline. The document provides two reference tables: a Clearing Method table that identifies brushing (C9) and mowing (C10) as standard clearing types, and a Disposal Method table that outlines five disposal options including lop and scatter outside trailway (D1), lop and scatter on fill slope (D2), pile and burn (D3), chip (D4), and haul to disposal site (D5). The standard is identified as STD_912-02 and references additional specifications in STD_912-01 for clear zone limits. This document serves as a template for trail managers to standardize vegetation clearing procedures across Forest Service properties.