10C Action Items 2017 1218 - Laserfiche WebLink

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3  Trails or Informal Activity Areas o A walk through inspection will be performed on hiking trails, both designated and undesignated within recreation areas.  Developed Zones o Playgrounds, day use areas, parking lots, interpretive areas, transportation corridors and similar areas will be given individual inspection. All trees within falling distance of designated use space should be individually checked. In buffer, transition areas, or perimeter zones, inspections may be accomplished by walk- through procedures. Documentation A "Hazardous Tree Inspection Form" (Appendix A) will include the evaluator(s) performing the inspection, date(s) of inspection, the area covered, management zone, noted or suspected hazardous trees (include location, size, and species of tree), ratings, notes on inspections of individually checked trees found to have significant defects including description of the flaws (Appendix B), recommendations, and documentation of follow-up actions. The record of inspected trees from cycle to cycle can be useful to document whether a tree is declining, stable, or regaining vigor. In order to effectively and efficiently locate a tree previously inspected the evaluator(s) must give the tree a location ID. This can be accomplished by identifying a fixed object within the inspection area (such as a fire ring set in concrete) from which a compass bearing and a distance measurement from the fixed object can be taken to the tree. Each completed tree evaluation will be given a hazard rating and a recommended abatement action. The evaluator(s) should note the date of the completed abatement action in the hazardous tree log. Completed hazardous tree logs shall be retained by the City of San Leandro and reviewed each year prior to commencing current inspections. By doing so the evaluators can identify trees that may have been marked for a mid cycle evaluation. In this manner the hazardous tree log acts as another tool in prioritizing work schedules. Identifying Defects Examination of the entire tree structure for defects and hazards begins with an assessment of overall vigor and health. Upon completion of the initial assessment an examination of roots, root crown, trunk, branches and scaffold limbs follows (Appendix C). If during the inspection process, the evaluator identifies a tree in imminent danger of failing, immediate action must be taken. This includes informing appropriate personnel, excluding park visitors from the target area and implementing abatement treatments (pruning, removal, etc.). 559