CITY OF NOVATO, PLANNING AND ENGINEERING DIVISIONS, Novato,
CA - Provided geotechnical consultation and peer review for numerous projects,
including Novato Community Hospital, Marin Country Club Development, Black
Point Golf Links, Atherton Ranch, Woodside Development, Olive Ridge, Hamilton
Hangers, the Buck Center Housing Development, Inspiration at Chapel Hill,
Oleander Lane Subdivision, Olive Court, Brookside Meadows, Marin Business
Center and Woodview, and others.
MARIN MUNICIPAL WATER DISTRICT, Marin County , CA Performed geotechnical
investigations and provided services during construction and retrofit of
numerous large water tanks and pipeline projects. Projects have included
Summit Trail Tank Replacement, Vernal Avenue Water Tank, Tiburon First Lift
Tank, Lapachet Tank Replacement, Manzanita Tank Replacement, Terra Linda
Tank, Bret Harte Tank, Marinwood Tank, Scott Tanks #1 and #2, Concrete Pipe
Road Pipe Replacement Project, Rafael Highlands Tank, Phoenix Lake Access
Road Stabilization, Oak Springs Drive Landslide/Pipeline Realignment, Sky
Oaks Road Stabilization, and others.
CITY OF NOVATO , CIP, Novato , CA - Provided geotechnical engineering
services for remedial and capital improvement projects for the City of Novato
, including the San Marin Pedestrian Path, the 771 Rowland Avenue slide
repair.
TOWN OF CORTE MADERA, Corte Madera, CA - Provided geotechnical engineering
services for remedial and capital improvement projects for the Town of Corte
Madera, including Fire Station #13 Replacement, Montecito Drive Retaining
Wall, Sewer Replacements (Oakdale Avenue, Manzanita Avenue, Alta Way), Storm
Drain Replacements (Meadowsweet Drive, Corte Madera Avenue), Shorebird Pump
Station, District No. 1 Main Replacements, Alta Way Roadway Stabilization,
Redwood Avenue Retaining Wall, Bayside Trail/San Clemente Park, Corte Madera
Skate Park and others.
SAN JOSE REGIONAL LANDSLIDE STUDY , San Jose, CA - Detailed evaluation
of the stability of numerous active, deep seated landslides in the San Jose
East Foothills, including the over 300-foot-deep Penitencia Creek Landslide.
Study included reviewing hundreds of geotechnical and geologic reports prepared
in the Special Geologic Hazard Area, compiling and evaluating existing laboratory
test data and analysis procedures, analyzing earthquake site response, slope
stability and earthquake induced deformations of existing slopes, and developing
recommended geotechnical guidelines and procedures for use by the City of
San Jose for investigation and analysis of deep seated landslides.
MILL VALLEY COMMUNITY CENTER , Mill Valley , CA - Geotechnical investigation
for two-story, pile-supported community center building and out-of-ground
swimming pool on former landfill site. Project included settlement and stability
analyses of proposed fills over soft Bay Mud deposits, development of site-specific
earthquake response spectra and providing geotechnical design criteria for
deep foundations.
FAIRFAX STREETS, Fairfax , CA - Geotechnical investigation and design
recommendations for stabilizing numerous streets in connection with Measure
K roadway improvements. Also performed investigation and construction observation
during emergency repairs of Town Streets.
MILL VALLEY STREETS, Mill Valley , CA - Geotechnical reconnaissance and
consultation for entire 50 miles of Mill Valley 's hillside streets. Geotechnical
investigations for remediation of several roadway sites to correct landslide
conditions.
§ NAPA VALLEY COLLEGE , Napa California - Geotechnical investigation,
geologic hazards evaluation and construction observation for a new Vintners
Teaching Winery building. Project included an evaluation of liquefaction
induced settlements in accordance with updated California Division of Mines
and Geology guidelines, and of developing recommendations for lime treatment
of weak and expansive soils.
MARIN COUNTY CORRECTIONAL FACILITY, San Rafael , CA - Provided geotechnical
services during construction of new jail building adjacent to existing Frank
Lloyd Wright Civic Center . Project included monitoring of blasting, performing
kinematic and stability analyses for extensive rock cutslopes, and providing
recommendations for permanent tieback anchors to shore 35-foot high slopes
adjacent to the Civic Center .
SANTA ROSA JUNIOR COLLEGE , Santa Rosa , CA - Geotechnical investigation
and construction observation for a new Health Sciences Building . Project
included an evaluation of liquefaction induced settlements in accordance
with updated California Division of Mines and Geology guidelines, and of
developing recommendations for foundation support on weak and expansive
soils.
SAN RAFAEL CANAL FORCE MAIN, San Rafael, CA - Performed geotechnical investigation
for two large diameter pipelines installed beneath the canal utilizing directional
tunneling and jacking techniques. Project included extensive coring for
characterization of Franciscan bedrock along the alignment.
SKYWALKER RANCH, Lucas Valley, CA - Geotechnical investigations for construction
of technical building, day care center and guest apartments with underground
parking at George Lucas' large film production complex. Projects included
stability evaluations, providing design recommendations for tiedback shoring
in weak colluvial soils, and developing design criteria for conventional
spread footings, drilled piers and driven piles.
MENDOCINO COAST DISTRICT HOSPITAL , Fort Bragg , CA - Performed liquefaction
evaluation for emergency room addition, and provided recommendations for
the installation of driven piles for foundation support.
KENT LAKE STREAM RELEASE REPLACEMENT, Kent Lake, CA - Performed geotechnical
investigation for new siltation basin at the base of existing large dam.
Project included stability analysis of deep cuts within old fill deposits,
and recommendations for soil nail and braced shoring systems.
OAK SPRINGS WATER LINE REPLACEMENT, San Anselmo, CA - Performed geotechnical
investigation and construction observation during replacement of water line
damaged by landsliding. Project consisted of deepening water line below
the zone of sliding and active creep.
CONCORD NAVAL WEAPONS FACILITY PIPELINE, Concord , CA - Performed geotechnical
investigation along planned alignment of major pipeline.
SAINT HELENA WATER TANK, Saint Helena , CA - Performed geotechnical investigation
for new 2.7 MG water tank. Project included the evaluation of steep cut
slopes and mitigation of differential settlements due to variable foundation
conditions.
GEORGE LUCAS PROPERTY , San Anselmo , CA - Geotechnical investigation
for planned residential structure and court on steep hillside. Project involved
design of numerous tiered reinforced earth walls ranging up to approximately
30 feet high, developing tiedback shoring recommendations for planned 40
foot cut in sheared and faulted Franciscan Melange, and providing geotechnical
recommendations for roadway stabilization, extensive site grading, structural
support of improvements and the construction of a bridge.
BENMORE VALLEY DAM, Lake County, CA - Performed seismic stability evaluation
of existing earth dam including rapid drawdown analyses and liquefaction
analyses, and provided conclusions and recommendations concerning construction
or a downstream filter system to prevent piping erosion through the dam.
Project included detailed site response evaluation and post-liquefaction
seismic deformation analyses.
GOLDEN GATE BRIDGE - SOUTH TOWER , San Francisco , CA - Performed an evaluation
of potential backfill materials suitable for placement between the existing
bridge pier and surrounding coffer dam to absorb the impact of large super
tankers.
WHITES HILL, Woodacre , CA - Performed stability analyses of four major
landslides and provided design alternatives for protection of adjacent roadway.
Among considered alternatives were tiedback lateral support systems, geogrid-reinforced
buttress fills and soldier pile bridges. Performed construction inspection
during construction of slide repairs.
OLD REDWOOD HIGHWAY BRIDGE , Petaluma , CA - Performed a subsurface investigation
of the project site using cone penetrometer and provided conclusions and
recommendations regarding pile foundation design and liquefaction potential
at the site.
REDWOOD LANDFILL EXPANSION, Novato , CA - Provided technical review services
in connection with the proposed vertical expansion of the existing landfill
facility. Performed static and dynamic stability and deformation analyses
to evaluate the sequenced staged loading of 165 foot high refuse slopes
to be placed over soft bay mud foundation.
UPPER RESERVOIR DAM REMOVAL, St. Helena , CA - Performed geotechnical
and geophysical investigation and provided recommendations for the removal
of an existing 100 year old dam, restoration of the upstream channel and
stabilization of the adjacent roadway.
RANCHO SOLANO SUBDIVISION, Fairfield, CA - Provided services in connection
with the identification and evaluation of over 100 landslides at an existing
800 residential lot subdivision. Project included extensive subsurface and
geophysical investigation, geologic characterization, stability analyses
and recommendation of mitigation measures.
CENTRAL LANDFILL EXPANSION, Performed geotechnical, geologic and hydrogeologic
investigation for planned expansions in two canyons adjacent to the existing
landfill. Project included analyzing static and seismic stability of planned
cutslopes and refuse slopes, performing geologic and hydrogeologic site
characterization, evaluating potential liner materials and delineating potentially
active faults extending through the site.
GOLDEN GATE BUSINESS PARK , Novato , CA - Provided static and seismic
stability analyses of fill slopes, settlement evaluation and foundation
design criteria for two large office buildings supported on pile and mat
foundations over soft bay mud.
SAUSALITO YACHT HARBOR BULKHEAD REPAIR, Sausalito , CA - Performed geotechnical
investigation of failed waterfront bulkhead using the cone penetrometer,
and provided geotechnical design criteria for a tiedback sheetpile bulkhead
and associated driven pile deadman anchors.
TIBURON FIRE DEPARTMENT, Tiburon , CA - Performed settlement analyses
of conventional and lightweight fill over soft bay mud and provided design
alternatives to mitigate settlement impact on adjacent structures.
CORTE MADERA FIRE STATION # 13, Corte Madera , CA - Performed settlement
and stability analyses, and developed mitigation measures to address seismic
lurching of fill banks over soft bay mud.
WILLOWBROOK CENTER -7, Petaluma , CA - Performed geotechnical investigation
for 200,000 square foot industrial building on expansive adobe underlain
by deep alluvial soils. Project included performing site response analyses
for a detailed evaluation of potential liquefaction induced settlement,
providing recommendations for the control of expansive surface soils, and
managing observation and testing services during construction.
MENDOCINO COAST DISTRICT HOSPITAL , Fort Bragg , CA - Performed liquefaction
evaluation for emergency room addition, and provided recommendations for
the installation of driven piles for foundation support.
PENNGROVE FIRE STATION, Penngrove , CA - Performed geotechnical investigation
for addition to existing fire station located on weak, compressible alluvial
soils.
THOMPSON FAULT EVALUATION, Ukiah , CA - Provided geotechnical input for
preparation of detailed investigation along the active Maacama Fault in
accordance with the Alquist-Priolo Act. Project included extensive field
investigation, aerial photo interpretation, and developing seismic design
criteria considering near-field effects and topographic amplification.
NIELSON DAM, Santa Rosa , CA - Performed static and seismic stability
evaluation of existing earth dam. Project included detailed site response
analysis of anticipated ground motions from Healdsburg-Rodgers Creek fault
located 200 feet away, and corresponding post-liquefaction seismic deformation
analysis.
SUTRO TOWER , San Francisco , CA , Performed geotechnical investigation
and construction observation in connection with a new generator pad facilities
at base of tower.
GEOTECHNICAL PEER REVIEW SERVICES, Larkspur, San Anselmo, Novato , Marin
County , CA - Provided review of geotechnical planning and building permit-level
submittals to evaluate conformance with local ordinances and geotechnical
standards of practice.
STAFFORD LANDSLIDE, Stafford , CA - Performed geotechnical investigation
and provided design recommendations for the construction of a large debris
deflection/catchment basin in connection with a massive debris flow landslide.
