Certified Arborist

LEI Engineering & Surveying of Oregon (LEI) provides full service Certified Arborist Services to meet the needs of urban development projects.  LEI is an industry leader in modern forest practices, with significant experience throughout the Pacific Northwest spanning more than three decades.   This extensive experience and expertise extends into the fields of arboriculture and urban forestry.

Certified Arborist and Tree Preservation Report

  • Site specific tree examination and assessment
  • Develop tree preservation plan for incorporation into Civil Engineering plans
  • Draft Certified Arborist and Tree Preservation Report to meet regulatory requirement

Other Services

  • Hazard tree evaluation and risk assessment
  • Determination of critical root zones
  • Evaluation of trees damaged by construction
  • Construction inspections