Tree Flagging Tape
Posted on Thursday October 15, 2015 at 01:07PM
Silver Beach Road Patrol and Assessment
The Patrol of Silver Beach Road was conducted on October 2, 2015 and addressed road clearance issues, the visibility of signage and trees that could be hazardous to Silver Beach Road or surrounding infrastructure. Listed below are the criteria and parameters used on the patrol.
Patrol Parameters & Justification
• Green Flagging was used to help identify the areas or trees requiring Trimming.
• Orange Flagging and Orange Paint were both used to identify Removals.
• Trees that are or could swing within 3 Meters of the Overhead Primary and Distributions Secondary Lines were not identified and will need to be addressed by Fortis when they cycle through the area.
• The “edge of the road surface” mentioned numerous times in the Patrol refers to the edge where the asphalt ends.
• In the essence of keeping some consistency, Coniferous Trees were identified for trimming if they did not possess 2 Meters of clearance from the edge of the road surface. Deciduous Trees were identified for trimming if they did not have 2.5 – 3 Meters of clearance from the edge of the road surface. These width parameters were set to ensure that a sustainable clearance is met to accommodate wider loads, driver’s line of sight, road sign visibility, snow plowing and roadside mowing. Tree growth rates were also taken into consideration when these clearances were established.
• Where required, a Trim height specification of 15-20 feet above the road surface was established to ensure that taller transport loads could pass uninterrupted below a trees branches.
• Hazard Trees were classified based on a low tolerance for risk. The hazard tree identification was strictly a visual inspection looking for visible defects such as but not limited to Conks, Cracks, Cat facing, Visible Rot, Bark Inclusion, Rooting or Bank Instability, Crown Deterioration, Co-Dominant Leaders on Spruce, & Heavy Leaners towards the road or cabins. Strong Prevailing winds coming from the Northwest was a consideration but not used on its own for classifying a tree as a potential hazard.
- Hazard Tree Targets consisted of:
- Roadways used by cars and pedestrians
- Occupied residences and Outbuildings
• Crews will need to pull off and dispose of Flagging when they perform work on specified sites to help distinguish which sites are complete or incomplete and to cut down on Flagging litter.
• Visual Hazard Tree Assessments are performed as a non-invasive assessment using signs and symptoms to help identify trees vulnerable to failure. Hazard trees are identified to help minimize damage to adjacent properties and to the public in a storm event. That being said, any tree identified and not identified can fail with acts of god.
THIS IS A PRELIMINARY RISK ASSESSMENT – TREES/SHRUBS TO BE REMOVED WILL BE DETERMINED EARLY IN NOVEMBER.