Edward Chisholm, P.E. has over 50 years of experience in the structural design and management of major transportation structures and bridge projects throughout New England, New York and Washington DC. Ed was project manager for the inspection, and rating of over 100 bridges for MassDOT, and he has led the design effort for more than 50 bridges, including two railroad bridges. He has most recently been involved in several bridge design projects under MassDOT’s Accelerated Bridge Program as well as the rehabilitation of the Longfellow Bridge.
Robert Lie, P.E. has over 35 years of engineering and management experience in a wide range of building projects. In addition to his management responsibilities, Bob performs structural design for a multitude of new and rehabilitation projects, varying in size from small residential to large scale multi-million dollar commercial and industrial buildings. He is presently involved in the Tunnel Dewatering Pump Station and Enhanced Clarification Facility in Washington, DC.
Michael Lin has 20 years of engineering and management experience, in addition to summers throughout high school and college working at the company his father founded from the back porch of the family home. Over the years, Mike has served both technical and administrative roles at the company, currently assuming financial management and regulatory compliance responsibilities, as well as overseeing day to day operations.
Edward Barwicki, P.E. has over 45 years of professional experience in the design, repair, and rehabilitation of precast and cast-in-place concrete structures, with an emphasis on large structural elements including parking garages, plaza decks, water treatment facilities, and precast concrete bridge elements. Ed has also performed numerous bridge inspections and ratings for the MBTA, MassDOT and RIDOT. When Lin Associates was charged with design for Logan Airport’s boat and tunnel roadway sections under Boston’s Central Artery master plan, Ed conceived and detailed a column slip sleeve design that enabled pile supported columns for flyover roadways to penetrate the boat construction without leaking, while allowing the boat section to move freely past the penetrating pile supported column. This unique and innovative design was accepted and subsequently implemented in numerous areas of the Central Artery construction.
Gunadi Karjadi, P.E. has over 30 years of engineering experience that includes structural analysis, design of new structures, and renovation of existing buildings. His experience includes multi-story residential buildings and renovations to existing commercial facilities, office buildings and various college campuses. He has also performed structural analysis and design of various pump stations, power plants, and other public infrastructure building projects.
Daniel Deng, P.E. has over 31 years of design and construction experience on highway/railroad bridges and building/facility projects. His engineering experience includes field investigation, structural evaluation, rehabilitation, and new construction. For bridge projects, Dan has performed structural analysis and design for the replacement, rehabilitation, and emergency repairs of bridge structures for single or multi-span steel, reinforced concrete, and prestressed concrete superstructures supported on spread footing, pile foundation, and drilled shaft substructures, in compliance with the standard specifications for AREMA, AASHTO, MassDOT, MBTA, and other state transportation agencies. Dan has been trained with NHI Safety Inspection of In-Service Bridges and has conducted bridge inspection and live load ratings for MassDOT and MBTA statewide. For building projects, he has performed design and construction engineering services on residential, industrial, health, and maintenance facilities for wood, steel, reinforced concrete, prestressed concrete, and light gauge metal, in compliance with the Massachusetts State Building Code for gravity, wind, snow, and seismic loads.