David A. Petersen Email and Phone Number

Registered P.E. in Utah (2005), Wyoming (2011), Idaho (2012)Project engineer responsible for conducting field investigations including logging and sampling in borings and test pit explorations. Responsible for engineering analysis and recommendations including bearing capacity, settlement analysis, pavement design, collapsible soil mitigation, soft soil mitigation and slope stability analysis for geotechnical investigations. These include residential subdivisions, roadway improvements, new roadways, cell towers, and other commercial developments. Experience includes inclinometer measurements for construction excavations and landslide monitoring. Experience also includes groundwater modeling and AutoCAD drafting. Other software experience includes gINT, Settle 3D and Slide.Responsible for conducting field investigations including logging and sampling in borings and test pit explorations in forensic geotechnical investigations as well as completing manometer surveys to assess magnitude of differential settlement. Use of dynamic cone penetrometer (DCP) to assess density of subgrade soils.Project engineer responsible for conducting field investigations to assess aquifer properties including permeability.Responsible for several fault studies and landslide investigations that include excavating and hand logging trenches, aerial photography review, slope stability modeling, and making recommendations on setback distances from faults or other geologic hazards.Responsible for conducting numerous Phase I ESAs and Transaction Screen Process ESAs. Research included reviewing historical records, databases, conducting interviews with current and past land owners, interviews with land occupants, interviews with appropriate city, county, and state officials, reviewing aerial photography, and performing a site reconnaissance for each site. Work includes preparing preliminary results for HUD form 4128.