West Hills Landslide Repair Nov 21 Written By Duncan Kemp Strata Design partnering with GeoServices NW to drill bore holes as part of repairing a landslide in the West Hills of Portland. Duncan Kemp
West Hills Landslide Repair Nov 21 Written By Duncan Kemp Strata Design partnering with GeoServices NW to drill bore holes as part of repairing a landslide in the West Hills of Portland. Duncan Kemp