Collaborators
Leadership
Dena Prastos, AIA
CEO and Founder
Professional Registrations:
Registered Architect, NY, NJ & CT AIA, NCARB, WEDG, LEED AP
Certifications:
Professional Association of Diving Instructors (PADI) Open Water Diver, OSHA 10, OSHA 30
Dena Prastos is a licensed Architect and holds and a graduate degree in Civil Engineering; she has led projects around the world directing infrastructure construction, marine engineering, and the design of waterfront architecture. This experience has given her the tools to navigate the firm’s diverse client work with her unique expertise. Born and raised in Anchorage, Alaska, she has a deep-rooted appreciation for nature and mankind’s ability to design, build, and create infrastructure in some of the world’s toughest conditions.
Dena enjoys Chairing the National Council of Architectural Registration Board’s (NCARB) Future’s Collaborative where she guides and informs strategic conversations across the council regarding the future of the industry and profession. In 2021 she was appointed to join the National AIA Resilience and Adaptation Advisory Group. Dena also serves on the Planning Board in historic Grand View-on-Hudson, NY.
What’s your favorite thing about the company and its clients?
Our culture and expertise.
Where are you from?
Alaska
What’s the best advice you’ve ever received?
No one will care more about your career than you.
Shea Thorvaldsen
Partner
Professional Registrations:
Certifications:
Professional Association of Diving Instructors (PADI) Rescue Diver Emergency First Responder/O2 Provider, OSHA 30, OSHA 10
Shea Thorvaldsen is uniquely experienced in his knowledge and experience of the New York City Waterfront and is frequently called upon for his knowledge of Marine Infrastructure. He leads mainly by example, always doing his best and encouraging others to do the same. With more than 20 years of marine, site/civil and geotechnical engineering for waterfront structures, he has provided design, inspection, and cost estimating services for marine structures and various projects nationwide. Shea has a diverse background that includes the management and on-site supervision of numerous waterfront project components from the principal’s role down to the supervisory and foreman roles.
As an industry expert in the marine construction, engineering, underwater fields and environmental permitting throughout the tri-state area and is extremely familiar with the NJDEP, NYSDEC, NYSDEP and USACE regulations governing waterfront and impacted construction. In fact, of the 520 miles New York City shoreline, Shea has inspected, engineered, constructed, permitted, dived, or sailed over 425 of those miles.
What’s your favorite thing about the company and its clients?
Fearless stepping off into the unknown.
Where are you from?
Amityville, Long Island
What’s the best advice you’ve ever received?
Fake it until you make it; be yourself.
Team
Anand Agarwal, PE
Senior Project Manager
Professional Registrations:
Professional Engineer, NY
Certifications:
OSHA 10 Construction Safety, ASCE-I, CPR/First AID
Anand Agarwal is a professional engineer with over 13 years of experience in design, project management, inspection, feasibility studies, technical report writing, and construction administration. His expertise includes foundations, bulkheads, piers, retaining walls, shoreline stabilization, and marinas. Anand has experience with a wide range of marine projects, while providing support for bridge and geotechnical projects, both in design and construction. He is a WEDG-certified professional, serving on the technical committee on the most recent WEDG 3.0 update, highlighting his expertise in waterfront design. Anand enjoys the variability of the marine projects and looks to meet new and unique challenges along the waterfront.
What’s your favorite thing about the company and its clients?
The knowledge base of the company and the variety of the clients.
Where are you from?
Queens, NY
What’s the best advice you’ve ever received?
Making connections with your peers in related fields and companies is valuable, even at a junior level, as you’ll be able to grow together and build career bonds.
Alex Haubrich, PE
Project Manager, PE Diver
Professional Registrations:
Professional Engineer, NJ and NY
Certifications:
ADCI Air-Diver, #61443, OSHA 10 Hour Construction Health & Safety Course, Transportation Worker Identification Credentials (TWIC), CPR, First Aid, Oxygen Administration, OSHA 30, OSHA 10
Alex Haubrich is a naval and coastal engineer by study with technical training in fluid dynamics, marine dynamics, environmental engineering, hull design, total ship design, and naval architecture. He has become proficient in the analysis and design of waterfront structures, assessing the effects of construction over water, regulatory permitting and design of structures such as ferry landings, bulkheads, marinas, piers, floating docks, gangways and shoreline connections. As an engineer-diver, he has performed multiple ASCE condition assessments along the NYC waterfront and MOTEMS underwater inspections in California. Utilizing his knowledge of naval engineering and structural condition assessments, he has worked on the cataloging of port in-water assets and their varying structural conditions through the use of databases for efficient asset management. Alex has worked on projects that included the design of steel, timber and concrete structures above and below the water, assessment of environmental impacts, regulatory permit preparation, condition assessments, and above water and underwater construction support services.
What’s your favorite thing about the company and its clients?
Flexible and dependable.
Where are you from?
Voorhees, NJ
What’s the best advice you’ve ever received?
Don’t rely on email, use that little box on your desk.
Connor McKeon
Project Manager
Professional Registrations:
Engineer in Training, NJ
Certifications:
Engineer-in-Training, TWIC Card Certified, MTA Track Certified, OSHA 30, 8-Hour Site Safety Manager
A graduate from Stevens Institute of Technology, Connor McKeon is a naval architect and project manager on staff for all things floating. Connor has invaluable experience performing technical tasks in the office as well as field experience in marine construction processes, strategies, and site safety. He has modelled and built concrete barges for equipment and state-of-the-art 700 ft attenuators for marinas, managed contractors across an array of fields, performed analytical environmental and marine transportation studies, conducted marina and start-up business pro-forma reviews, and specializes in logistics and operations, particularly access analysis from land to water. Connor’s experience in construction and operations, his desire to lead, and his admiration for the water excite him in his position with his company and make him an asset in its success.
What’s your favorite thing about the company and its clients?
Two days are never alike.
Where are you from?
New Jersey
What’s the best advice you’ve ever received?
The smartest people know what they don’t know.
Darryl A. Zuk, PMP
Project Manager & Designer
Professional Registrations:
American Institute of Architects - Associate AIA
Certifications:
PMP (2821440), WEDG, OSHA 10, CPR, 4 Hour Supported Scaffolding
Darryl Zuk is a Project Manager and holds a BS in Architecture from Georgia Institute of Technology and a Master of Architecture from Columbia University. He has over 10 years of experience overseeing the design and construction of marine and infrastructure projects. Prior to joining Indigo River, Darryl oversaw several high-profile waterfront and marine infrastructure projects, while engaging directly with developers, city and state agencies, private clients, and consultants to realize project goals and budget. His duties have included proposal development, project management, permitting, architectural and technical design, estimating, procurement, and construction administration. He also has experience working for the New York City Economic Development Corporation’s (NYCEDC) Capital Division where he managed a portfolio of capital projects totaling $438M aimed at improving New York City’s infrastructure while enhancing the economies of neighborhoods throughout the five boroughs. Darryl has direct experience working under the guidelines set forth in the Waterfront Alliance’s Waterfront Edge Design (WEDG) manual for resilient and accessible waterfront projects and played a key role in determining the eligibility of various projects. In addition, he has presented as an instructor at a CEU-accredited course led by the Waterfront Alliance regarding the WEDG program and how to utilize the design guidelines for shoreline and marine projects.
What’s your favorite thing about the company and its clients?
Whether it be the public or private clients, all of the projects they allow us to work on are transformative in some way and make NYC a better, more resilient city.
Where are you from?
Hudson Valley NY + suburban Atlanta
What’s the best advice you’ve ever received?
If I ignore my student loan balance, the Chair of Architecture at Georgia Tech advised me to turn down my scholarship and go somewhere else for grad school to get a different perspective on design. I wound up in NYC and have been here ever since.
Andy Law, PE
Marine Structural Engineer
Professional Registrations:
NJ Structural – 24GE05925400 - NY Structural - 108165
Andy Law is a Professional Engineer with 5 years of experience in the consultation of a wide variety of waterfront structures including sheet pile bulkheads, berthing structures, pile supported platforms, piers and retaining walls. His expertise also includes but is not limited to conducting feasibility studies, designing, cost-estimating, permitting, providing construction support services, and analyzing/designing shallow and deep foundation structures along the waterfront. Andy has extensive experience in modeling of deep foundations in singular and group action, as well as shallow foundation on vertical and lateral stability.
What’s your favorite thing about the company and its clients?
Unique characters and broad range of experiences.
Where are you from?
Brooklyn, NY
What’s the best advice you’ve ever received?
JUST DO IT
Todd Lewis, PLA
Senior Construction Manager
Professional Registrations:
Registered Landscape Architect, NY
Todd Lewis is a registered Landscape Architect, Construction & Field Expert with 25+ years of experience delivering award winning parks, streetscapes, mixed-use, cultural, institutional, and commercial projects for high profile public and private clients locally, regionally, and nationally. Proven team, project, client, and consultant leader with a balance of design and technical strengths, focused on elevating the complete project experience. A collaborative leader adept at balancing the interests and input of owners, designers, contractors, and stakeholders to successfully deliver projects on time and on budget with an eye towards long-term maintenance. Active and engaged mentor, working closely with emerging leaders to infuse knowledge and expertise that elevates projects and provides opportunities for continual learning and professional growth.
Dea Tsutskiridze
Coordinator
Professional Registrations:
Notary Public - State of New Jersey
With over five years of dedicated experience in project coordination and management within the development sector, they have made significant contributions to a broad spectrum of industrial, residential, and institutional projects. Their proven expertise in managing costs, coordinating trades, and crafting budgets for multi-million dollar projects from inception to completion is notable. Excelling in fostering collaboration between project teams, design professionals, vendors, and local officials, they ensure projects are completed timely and within budget. A proud Rutgers University alumnus with a Bachelor of Arts in Public & Nonprofit Administration and a minor in Psychology, their unique perspective is further enriched by their origins from the Republic of Georgia. Born in a country with a rich history of navigating environmental challenges, especially in its coastal regions, they bring a distinctive viewpoint on waterfront development, resiliency, and sustainability. This background has deeply influenced their approach to problem-solving, imbuing them with a profound interest in the integrating sustainable practices and resilient infrastructures in project management to mitigate environmental impacts and ensure long-term success.
What’s your favorite thing about the company and its clients?
The creative and solution-based thinking towards every project.
Where are you from?
Republic of Georgia
What’s the best advice you’ve ever received?
Everything will work out as it should, invest less in worry and more in moving forward.
Ying Jiang, PE
Staff Engineer
Certifications:
NYS Licensed Professional Engineer, NYCDEP Licensed Asbestos Inspector, NYS Licensed Asbestos Inspector, HAZWOPER 40 Certification, OSHA 10, NYC Superintendent
Ying Jiang brings over 12 years of comprehensive experience working in the Civil and Structural Engineering Industries to Indigo River. A licensed Professional Engineer Ying is a seasoned professional specializing in waterfront projects. Ying also holds certifications as a NYCDEP Licensed Asbestos Inspector and 40-hour HAZWOPER. Ying previously served as a Project Manager/Engineer at Arco Engineering PC in Lyndhurst, NJ. In this role, Ying oversaw structural team’s design, project management, and construction coordination for waterfront initiatives. Prior roles, including Professional Engineer at NY Acorn Engineering PLLC and Principal Engineer/Senior Structural Engineer at Basic Group Corp, underscore Ying’s expertise in waterfront structural design, construction oversight, and project estimation for various commercial and residential projects. Served as
a Senior Civil Engineer at Impact Environmental Closures, where Ying directed engineering groups and managed waterfront projects, Ying consistently demonstrates a commitment to excellence and innovative solutions in the dynamic realm of waterfront Civil and Structural Engineering. Holding degrees from Taiyuan University of Technology and Worcester Polytechnic Institute, Ying combines academic rigor with hands-on experience, making her a valuable asset in shaping the future of waterfront engineering projects.
What’s your favorite thing about the company and its clients?
We exchange each one’s advantage to improve together in group work; we collaborate to solve challenges.
Where are you from?
China
What’s the best advice you’ve ever received?
“I” is just the concept illusion produced by binary opposition brain, be always help others selflessly which is the way of universe.
Alix Pauchet
Resilience Designer & GIS Mapper
Alix Pauchet is an architectural designer based in New York City. Prior to joining Indigo River, she worked for various architecture firms in Vermont, New York and Peru. Her work is centered on the intersection of architecture and natural urban infrastructure. She received a Master’s in Environmental Management from Yale’s School of the Environment and a Master in Architecture from Yale’s School of Architecture.
What’s your favorite thing about the company and its clients?
I love how Indigo River blends creative, forward-thinking solutions with practical, sustainable approaches. Our clients share that vision, which makes every project exciting and future-focused while staying realistic about present needs.
Where are you from?
Meudon, France
What’s the best advice you’ve ever received?
From a college professor and architect I’ve collaborated with over the years: ‘Measure twice, cut once’
Marty James
Jr. Engineer
Marty James is a dedicated Civil Engineering professional with a degree from the Georgia Institute of Technology. His diverse experience spans construction, civil, and geotechnical engineering, equipping him with a comprehensive skill set to tackle complex engineering challenges. Driven by a passion for the outdoors and a love for fishing, Marty has channeled his expertise into waterfront engineering, aiming to enhance and sustainably shape waterfronts. His commitment to environmental stewardship and innovative solutions makes him a valuable asset in the field, where he strives to make a meaningful impact on both infrastructure and natural habitats.
Jon Trencheny
Project Engineer - Diver
Jon Trencheny is an Engineer Diver with experience in marine engineering, commercial diving operations, underwater inspections, subsea cable work, mechanical systems maintenance, and project documentation. Skilled in troubleshooting, data analysis, CAD drafting, and shipboard engineering operations. Known for reliability, technical precision, and composure under demanding field conditions.
Aishwarya Mukund
Senior Environmental Planner / Policy Analyst
Aishwarya Mukund is a Planner and Environmental Analyst, bringing eight years of expertise in urban and environmental planning, GIS and spatial analysis, climate resilience, and interagency coordination to the firm’s waterfront and
coastal practice. She holds dual master’s degrees from Pratt Institute (Sustainable Environmental Systems) and the NYU Wagner School of Public Service (Urban Planning), and a B.S. in Civil Technology from the Center for Environmental Planning and Technology in Ahmedabad, India.
Ms. Mukund’s technical capabilities center on GIS and spatial analysis — ArcGIS Pro, ArcHydro, QGIS, and spatial statistics — applied to site suitability assessments, infrastructure analysis, and environmental review. Her regulatory fluency spans CEQR, SEQR, coastal zone management, and clean energy siting and permitting. She has coordinated interagency processes with NJDEP, NYC DCP, DOT, DOB, DEP, SCA, NYCHA, HPD, and EDC, and led environmental and resilience planning work at the state, municipal, and community levels.
Aishwarya has served as a Policy Analyst at the New Jersey Department of Environmental Protection, Senior Analyst and Project Manager at James Lima Planning and Development and conducted coastal resilience research across 12 communities in Da Nang, Vietnam for the United Nations.
Who We Work With