Our recent and ongoing projects include multi-modal corridor studies; parking
studies, transit planning and environmental studies for light rail, commuter
rail, high speed rail and regional bus service; transportation demand management
studies; and environmental documents for a variety of public and private
projects. Some of the recent projects that we have had a lead role on include
the following:
Amtrak Capitol Corridor Improvement Studies
The Amtrak Capitol Corridor Improvement project is designed to incrementally
upgrade the corridor, located between San Jose and Sacramento, to allow
trains to travel at higher speeds and to increase the reliability of service.
Marilyn Duffey worked as part of the Korve Engineering team to prepare the
environmental evaluation of recommended improvements to Amtrak along an
environmentally sensitive coastal corridor.
California High Speed Train Program-Level EIR/EIS
Working as a key subcontractor to Parsons Brinckerhoff,
The Duffey Company led the effort in a variety of tasks including preparing
a Technical Memorandum that identified effective strategies for completing
the Program Environmental Document; preparing a Purpose and Need Statement
for the analysis of alternatives; developing a strategic approach for involving
the appropriate resource agencies; and coordinating federal and local agency
meetings. Ms. Duffey assisted the Federal Railroad Administration and High Speed
Rail Authority in identifying requirements to be met and tasks to be accomplished
for the environmental review of this 700-mile project; developing and conducting
a comprehensive public involvement program designed to elicit and respond
effectively to issues and concerns; developing environmental technical study
methodologies for use by Regional Study Consultant teams; prioritizing the
development and implementation of segments of the proposed high speed train
system; technical oversight of the Regional Study Consultants; reviewing
the Regional Technical Study Products; and preparing Statewide Environmental
Technical Summaries and preparing the Draft Program EIR/EIS.
DesertXpress High Speed Passenger Train Project
Marilyn Duffey is serving as the Environmental Coordinator for this privately financed high speed
passenger rail project connecting southern California with Las Vegas, Nevada
along 200 miles of high desert corridor. Ms. Duffey is responsible for agency
coordination with the Federal Railroad Administration, the Surface Transportation
Board and Bureau of Land Management and other regulatory agencies and the
environmental consultant team during the preparation of the environmental
documentation (EIS) for the project and permitting process.
Golden Gate Bridge Seismic and Wind Retrofit, Environmental Documentation
and Construction Monitoring
The Duffey Company has provided environmental consulting services to
the Golden Gate Bridge, Highway, and Transportation District since 1994.
Marilyn Duffey managed the preparation of the environmental documents and
has been responsible for managing the environmental compliance monitoring
for both Phase I and II of the retrofit project. The Duffey Company has
played a key role in coordinating with National Park Service staff and with
the Federal Highway Administration, Caltrans, Regional Water Quality Control
Board, BCDC, USFWS,and other permitting agencies for mitigation compliance
during construction. Marilyn Duffey is responsible for day-to-day mitigation
monitoring of the seismic retrofit construction activities. The Duffey Company
also manages the budget and schedule of deliverables for four subconsultants
responsible for technical studies on noise and vibration, air quality, hazardous
materials, and biological resources.
Golden Gate Park Concourse Authority Transportation Implementation
Program and Environmental Compliance Monitoring
The voters of San Francisco approved Proposition J, the Golden Gate
Park Revitalization Act, to create a pedestrian oasis in the Music Concourse
area of the Park; reduce the impact of the automobile in the Park; and provide
long-term assurance of safe, reliable, and convenient access for all Park
visitors. The Duffey Company has played a key role in providing the Concourse
Authority with consulting services for a number of transit, traffic, parking
and bicycle actions to reduce the effects of the automobile as the primary
means of access to attractions in the Park. One of the most successful has
been the Intra-Park Shuttle Program, currently in its fifth year of operation.
Survey data and comments received by riders showed overwhelming support
for the shuttle by the public. Ridership has ranged from 29,000/year to
55,000/year with over 1,000 riders on peak days.
The Duffey Company completed the Golden Gate Park Bicycle Implementation
Plan in cooperation with the San Francisco Bicycle Coalition and a Pedestrian
Improvement Plan in cooperation with the Department of Parking and Traffic
(DPT) and the Pedestrian Safety Advisory Committee, and developed a Traffic
Calming Design Concept Plan for JFK Drive working closely with BMS Design
Group and the Recreation and Parks Department.
Third Street Light Rail EIS/EIR
This project extends light rail service from Muni Metro Rail extension
along the Embarcadero on San Francisco's northeastern waterfront into the
Bayview Hunters Point District and Visitation Valley. The Duffey Company
was responsible for managing the preparation of the initial EIS/EIR and
for coordinating the transportation analysis for this $500 million LRT project.
Project Manager, Marilyn Duffey, coordinated a team of subconsultants that
addresses key environmental issues such as traffic, parking, air quality,
noise, vibration, parklands, relocation, historic properties, and hazardous
materials. The FIES/FEIR, including the Comments and Responses, was certified
in late 1998. The Duffey Company has been a key player in the successful
coordination between FTA and local agencies. The EIS/EIR received a letter
of commendation for the high quality of the document from the Environmental
Protection Agency. The success of this project owed in part to an extensive
public outreach program in the community to assist in defining the project
alternatives and the sensitive environmental issues. Ms. Duffey also prepared
a re-evaluation and amended record of decision during the engineering phase
of the project to cover changes made subsequent to the EIS/EIR.