DATE

CLIENT - PROJECT DESCRIPTION

2013-2017

City & County of San Francisco - Planned and managed the establishment of the City’s High Precision Network and Densification of the High Precision Network utilizing GNSS technology; Planned and managed the establishment of the City’s High Precision Leveling Network and Densification; Ongoing oversight and geodesy consultant on a multitude of City wide projects. See "Contact" for link to Survey Report & Map etc.

2012

Rubicon–Commerce City - GPS control and leveling to establish horizontal coordinates and elevations on 180 monitoring wells.

2011

Dewberry/NOAA–California Coastline - GNSS Control Surveys of 927 miles of the California coast for QAQC of Lidar Mapping by others.

2010

Dewberry/USGS–Channel Islands off California - Control Surveys of five islands off California coast utilizing helicopters for sole access.

2010

Dewberry/ USGS & NOAA–San Francisco Bay - Control Surveys of the North & South San Francisco Bays for QAQC of Lidar Mapping.

2009

Optimal Geomatics - Lidar QAQC of 400 miles of High Voltage Transmission Lines for Southern California Edison.

2008

SPEC Services–LA to Las Vegas - Train and oversee four GPS crews for 240 miles of aerial control of gas line corridor mapping.

2007-2017

City of Rancho Palos Verdes–LA County - High precision GPS control of 70 points for monitoring slide movement over a three square mile area, accuracy of 7mm at 95%.

2006

Dewberry & Davis–Oahu, Kawai, Hawaii Islands - QAQC field surveys to validate Lidar data to meet FEMA standards including extending and establishing 300 miles of control across the south shores of the five major islands at a 5 centimeter vertical accuracy.

2005

Dewberry & Davis–Maui & Lanai - QAQC field surveys to validate Lidar data to meet FEMA standards including extending and establishing control on Maui and Lanai at a 5 centimeter vertical accuracy.

2005

HSW Florida–Hawaii - Establish First Order GPS Control Network with refined geoid model at the PTA on the Big Island, Hawaii to control lidar mapping and design including QAQC ground truthing.

2004

RM Towil–Maui Hawaii - QAQC field surveys to validate Lidar data to meet FEMA standards including establishing a 5 centimeter vertical GPS network on the southwest side of the Island of Maui.

2004

RM Towil–Guam - QAQC field surveys to validate Lidar data to meet FEMA Stds including establishing a 5 centimeter vertical GPS network on the central portion of the Island of Guam.

1997-2012

City of Santa Barbara - Densification of First Order Control Network, subsidence monitoring, Height Mod GPS.

2001

City of Stockton - Upgrading the existing City Network to 300 First Order Network and develop a refined geoid model to replace conventional leveling with GPS.

2000

City of Eureka & HCSD - Establish a 400 point Control Network on NAD 142, 1998.50

1999

The Gas Company - Located and mapped 21 miles of gas line right-of-ways with RTK GPS methods, west of Bakersfield.

1998

City of Oxnard - Established 81 new First Order Control Points on NAD 142, 1995.0 and NAVD 88.

1994-2007

Boeing North America - Established and expanded Control Network for the Santa Suzana Field Laboratory above Simi Valley based on WGS 84 and NAD 142 with NAVD 88 modeling.

1997

City of Santa Monica - Established 130 First Order Control Points based on NAD142 and NAVD 88.

1997-2007

China Lake Navel Weapons Center - Established base control for aerial mapping 2500 square miles on NAD 142, 1995.0 and NAVD 88 with Aerial Photomapping Services

1996

City of Los Angeles - Established 400 Control Points based on NAD 142, 1995.0 for conversion of the City’s GIS from NAD 27 to NAD 142.

1994 & 1998

City of Stockton - Established 105 First Order Control Network based on NAD 142, 1991.35.0 & NAVD 88 and located 100 miles of levees for hydrology studies with Siegfried Engineering.

1993 & 1998

Culver City - Established 76 Point First Order Control Network for City Network based on NAD 83, 1991.35 & NGVD 29 with CBM Engineering; 1998 upgrade to 1995.00 Epoch and NAVD88 to 131 First Order stations.