I-580/San Leandro Soundwall
A detailed tree survey was required prior to preparing drawings for six new soundwalls along I-580 in the cities of Oakland and San Leandro. PGA staff surveyed 297 trees on both sides of the right-of-way and created simple, clear graphics illustrating the location, species and size of each tree. PGA determined which trees would be impacted by the proposed construction and recommended removal, pruning or protection. PGA also calculated mitigation requirements based on how many trees would be removed and recommended appropriate replacements, as many of the existing trees were identified as undesirable, invasive species.