When the Moraga Town Council approved an April 8 Town Facilities Energy Reliability Project involving solar improvements at Town-owned facilities, it included the Moraga Library. While deciding where the solar improvements and generators could best be placed there, it was discovered that dozens of redwood trees encompassing the library needed to be removed. 

    A Tree Risk Assessment was done by arborist Hamilton Tree Service, which determined that of the 43 existing redwood trees on the property several posed a risk not only to the building itself, but to the foundation, utilities, walkways, drainage facilities, and parking lot pavement.

    An Aug. 26 project update report to Council by Public Works Director/Town Engineer Nate Levine noted, “The redwoods are generally in good biological condition and have a low-risk rating for whole-tree failure.  However, the primary issue identified is not tree collapse, but ongoing mechanical damage from expanding trunks, root flares, and root systems affecting existing Town facilities and infrastructure.” 

    Levine also cited problems with cracked and lifted walkways, displaced drainage grates, issues near utility equipment/gas lines, parking lot impacts, and close proximity to the library building itself.

    The Tree Risk Assessment recommended the removal of 24 redwoods; however, staff has evaluated the report and determine that, for now, up to 10 trees would be removed while monitoring the remainder. The bulk, if not all of the redwoods expected to be removed are located behind the library. 

    “Staff is committed to evaluating replacement redwood planting at a 3:1 ratio for removed redwoods at other locations in Town, subject to suitable planting locations, irrigation availability, and funding,” Levine stated. “This effort may include exploring a community planting program that would offer trees to residents who agree to plant and maintain them on private property. Staff also plans to plank/recycle removed redwoods for use as picnic tables at Rancho Laguna Park.”

    Council Member Steve Woehleke posed the idea of replacing the redwoods with a less invasive tree which Levine said could be a possibility. In the meantime, staff will finalize the proposed tree removal process.  Costs will be funded through the previously authorized Town Facilities Energy Reliability Project