Staff Members

Tony Dang, AICP

Deputy Director of Sustainability

Tony was appointed as Caltrans' Deputy Director for Sustainability, effective January 22, 2022. In this role, Tony oversees the development, implementation, and integration of sustainability principles and practices into all Caltrans activities.

Prior to this position, Tony served as Sustainability Program Manager in the Director’s Office where he provided strategic direction to the Department’s work to advance complete streets and active transportation and was a lead co-author of the California State Transportation Agency (CalSTA) Climate Action Plan for Transportation Infrastructure.

Prior to joining Caltrans, Tony worked for over a decade in the non-profit sector working at the intersection of transportation, sustainability, and equity to create more vibrant, livable, and just communities—most recently serving as the Executive Director of California Walks where he oversaw the organization's policy advocacy, community engagement programs, and technical assistance services.

Tony is a member of the American Institute of Certified Planners and holds a BA from Stanford University in Comparative Studies in Race & Ethnicity.

Eric Sundquist

Sustainability Advisor/SB 743 Program Manager

Eric Sundquist is joined Caltrans in 2021. In his role of sustainability advisor he serves as program manager for VMT reduction and SB 743 implementation. Prior to working at Caltrans, Eric worked as the director of the State Smart Transportation Initiative (SSTI) at the University of Wisconsin. SSTI works with state DOTs nationally to modernize policy and practice around policy goals including environmental protection, equitable transportation service and impacts, and cost-savings. Eric has been active in the Transportation Research Board, chairing the Social, Economic, and Cultural Issues Section and serving as paper review coordinator for the Major Cities and Transportation and Sustainability Committees. Eric has a doctorate in City and Regional Planning and a master’s degree in Public Policy, both from Georgia Tech, as well as a master’s in humanities from the University of Richmond, and a BA from Miami University. 

Charles "Muggs" Stoll

SB 743 Advisor

Charles Stoll, more commonly known as "Muggs", is a transportation professional with over 34 years working in transportation planning, environmental planning, capital project development and communications for the San Diego Association of Governments (SANDAG) and the California Department of Transportation (Caltrans) in San Diego, California. He was the Director of Land Use and Transportation Planning at SANDAG from 2010 to 2019. Prior to his service at SANDAG, Muggs spent over twenty years with Caltrans in the San Diego District Office (D7), concluding his service as the Chief Deputy District Director for Capital Program Delivery. He has been a Registered Professional Engineer in the State of California since 1988 and is active in the Transportation Research Board (TRB). Muggs has a Bachelor of Science in Civil Engineering and a Master of Business Administration. Both degrees were earned at San Diego State University, where he is now a lecturer in the Civil, Construction and Environmental Engineering Department.  

Kim Epperson

Sustainability Resource Manager

Kim Epperson is currently Recourse Manager for the Sustainability Program in the Director’s Office. Kim started her Caltrans career in 2000 as a Dispatcher-Clerk at the Kingvale Communication Center. Kim later went to work as a Dispatcher-Clerk at the District 3 Regional Transportation Management Center eventually becoming the Dispatcher-Clerk Supervisor at the same location. In 2010 she accepted the position of Caltrans Regional Administrative Officer in the Sunrise Region Office in District 3. The beginning of 2014 Kim shifted her career outside of Maintenance and joined Headquarters Project Management team as Resource Manager over the Division of Construction. Kim joined the Sustainability team the end of October 2018.

Anika Jesi

Senior Transportation Planner

Anika Jesi joins the Sustainability Program as a Senior Transportation Planner working primarily on policies and processes to help integrate active transportation into the Department and allow for the development of more bicycle and pedestrian facilities on the State Highway System. Prior to joining the Sustainability team, Anika was in the Smart Mobility & Active Transportation branch in the Division of Transportation Planning, where she worked on projects such as development of a Smart Mobility How-to Guide and Complete Streets implementation. Originally, Anika hails from San Francisco where she began her career at the Metropolitan Transportation Commission managing the Freeway Service Patrol program. Outside of work, Anika serves as a Commissioner on the Sacramento Active Transportation Commission and as Vice President of her local neighborhood association. In her free time, she enjoys gardening, house projects, tennis, and hanging out with her husband and cat. Anika holds a Bachelor of Arts in Environmental Studies & Urban Sustainability from Seattle University.

Ali Doerr Westbrook

Associate Transportation Planner

Ali Doerr Westbrook is as Associate Transportation Planner in the Sustainability Program. Ali staffs the California Walk Bike Technical Advisory Committee, Complete Streets Center of Excellence and a variety of other projects related to the mitigation of greenhouse gas emissions within the Department.

Prior to joining the Sustainability Program Ali worked in the Climate Change Branch at Caltrans and oversaw the Adaptation Planning Grant Program. In that role she assisted grant recipients and worked with stakeholders to bridge the gap between transportation investments and climate change effects in their region. Ali also worked for the City of Eugene as an intern within the Transportation Options office to plan and implement community support around active transportation.

Ali holds a Bachelor’s of Science in Planning, Public Policy and Management from the University of Oregon.

Shelby McMichael

Sustainability Communications and Training Coordinator

Shelby McMichael joins the Sustainability Program as the Communications and Training Coordinator. She develops written products to communicate the Sustainability Program’s values, mission, and efforts.

Prior to joining the Sustainability Program, Shelby was the Special Assistant to Kate Gordon, the former Director of the Governor’s Office of Planning and Research (OPR) and Senior Climate Advisor to Governor Newsom. As Special Assistant, Shelby managed all administrative pieces of Gordon’s work, as well as prepared communication content for Gordon’s speaking engagements and the organization at large. Before joining OPR, Shelby served as a Capitol Executive Fellow with the Health in All Policies Program at the California Strategic Growth Council, where she worked on the intersection between transportation and public health.

Shelby holds a Bachelor of Arts in Communication and Sociology from the University of California, Davis.

Although a fervent advocate for active transportation, you can most often find her on a stationary bike at spin class.  

Derek Longacre

Sustainable Operations Manager

Derek joins the Caltrans’ Sustainability Office team in 2021 with 16+ years of facilities and operations management experience in the public and private sectors. Prior to joining Caltrans, Derek was the Section Chief for the Facilities and Business Services Section at the California Air Resources Board (CARB). In his time at CARB, he managed and supported CARB’s portfolio of over 60 facilities locations statewide, including office buildings, air monitoring stations, laboratories, and vehicle emissions testing facilities. Derek was involved in facility project development and innovation, project management, infrastructure planning, sustainable operations, and recycling coordination. In addition, he managed the Business Services Section and administrative functions of CARB’s fleet operations, including vehicle procurement, zero emission vehicle implementation, and electric vehicle charging infrastructure.

In his free time, Derek enjoys getting outdoors, doing home projects, spending time with his family, bicycling, and travel.

Barby Valentine

Zero-Emission Vehicles (ZEV) Hub Manager

Barby Valentine joins the Sustainability Program as a Senior Transportation Planner serving in the role of Zero-Emission Vehicle Hub Manager. Barby works in collaboration with Caltrans' Districts and Divisions, along with external entities to establish, implement, and institutionalize practices in support of the Caltrans sustainability priority to advance clean vehicles and fuels statewide.  Prior to joining the Sustainability Program, Barby worked in District 11 as a Regional Planner, coordinating the District’s Transportation Planning Grant Program, developing the Active Transportation Plan Outreach Strategy, and initiating Electric Vehicle Charging Infrastructure Projects. 

Barby holds a Bachelor of Science Degree in Business Administration – Management from San Diego State University. 

Organization ChartOffice of Sustainability Org Chart - Jan 2022