This 48-acre project nestled in groves of Douglas Fir and Ponderosa Pine, in picturesque Pollock Pines, California, was planned to be split into a planned development that included 28 lots.  These lots were to all use septic systems for wastewater disposal.  Youngdahl Consulting Group, Inc. constructed test pits on every lot and completed percolation tests in these test pits.  Once sufficient data was developed, the lot lines were adjusted to allow adequate disposal areas for each lot.  The project is currently under review prior to being permitted for construction.

Eastbound Highway 50 Offramp, Latrobe Road - US Highway 50 was converted to a 4-lane freeway through the El Dorado Hills area in the 1960s.  At that time, Latrobe Road was a narrow, low use road connecting a young El Dorado Hills to the sleepy community of Latrobe, several miles to the south.  As the community of El Dorado Hills grew, so did the demand on the eastbound offramp to Latrobe Road, which had been cut through a ridge more than 70 feet tall.  When the time came to widen the offramp to accommodate two new lanes, Youngdahl Consulting Group, Inc. was contracted to complete a cut slope stability analysis to estimate the steepest cut that could safely be constructed.  The existing cut slope was thoroughly mapped both by the direct measurement of fractures and joints and through the use of photogrammetric methods from the north side of the highway.  Existing joints were collected to measure the shear strength properties.  A cut slope design was prepared.  The cut slope was constructed and cleaned of loose rock.  The cut slope continues to perform with only occasional maintenance and clearing of loose rock contained at the base by a toe fence.