San Francisco Public Works Annual Report - Fiscal Year 2017-18 | Page 52

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O’Shaughnessy
Rock Removal
Glen Park neighborhood
Specialized crews successfully brought down a large boulder and
other loose rock to temporarily stabilize the rocky hillside adjacent to
O’Shaughnessy Boulevard in the Glen Park neighborhood to protect
against future rockslides. An assessment by geotechnical engineers found
that one large boulder in particular remained in danger of sliding down the
hill and needed to be removed before the winter rains.
Public Works managed the public safety project and an outside contractor,
Soil Engineering Construction, Inc., was brought in to perform the work
with expert crews who also are trained rock climbers. Public Works will
perform a more permanent hillside restoration in coming years.