About Terra Associates

Terra Associates for over 40 years has provided civil engineering, surveying, economical design, project management and permitting services for multi-family, retail developments, office/industrial projects, and municipalities. To better serve our clients we now provide traffic engineering, landscape architecture and irrigation design services.

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A team of committed professionals

We have built long-term relationships with our clients, as well as local and state regulatory agencies, founded on trust and a superior work ethic with attention to detail. We listen to our clients and understand the importance of tailoring their needs to the characteristics of the land.

From beginning to end, we strive to ensure that each job meets all client and governmental agency criteria, but in a cost effective way.

Our Experience

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Our Team

Vickie Henkel

Vickie Henkel

CEO

Lyle Henkel

Lyle Henkel

President

Lyle Henkel, Professional Engineer, has 20+ years of experience in the civil engineering profession. He joined Terra Associates in 1993.

As a registered Professional Engineer, he has done extensive work in residential and commercial developments, with projects ranging in size from 1-acre pad sites to master planning 100+ acre commercial and mixed-use sites.

He has worked on developments throughout the Houston and greater Harris County area, along with cities across Texas including Plano, Mesquite, Lubbock, San Antonio, Brownsville, Midland and others.

David Sepulveda

David Sepulveda

Vice President

David Sepulveda, Professional Engineer, Public Development, joined Terra Associates in 2005.

He is a registered Professional Engineer in the State of Texas and has 20+ years of experience serving the public sector and private developers as engineer and project manager.

He has been involved in the planning, design, and construction of water, wastewater, drainage and paving systems for numerous public and commercial developments located in Harris, Fort Bend, Montgomery and Brazoria Counties.

Kevin Polasek

Kevin Polasek

Vice President

Kevin Polasek, Professional Engineer, LEED AP, joined Terra Associates in 2006. Mr. Polasek is a registered Professional Engineer in the State of Texas with 17+ years of experience in the civil engineering profession.

Mr. Polasek has been extensively involved with commercial, retail, industrial and multifamily developments. His responsibilities include complete project management, oversight of title and topographic deliveries, platting, civil design, permit processing and construction observation.

Mr. Polasek has an extensive background in the design and development process required to prepare and finalize complete civil packages and platting on a fast-track schedule.

Bill Schock

Bill Schock

Vice President, San Anotnio

Bill Schock, P.E., L.E.E.D. AP, joined Terra Associates in 2012 and is the San Antonio Branch Manager. Mr. Schock has been working in San Antonio for over 20 years and has been a regional engineer for national clients such as Chick-fil-A, Bank of America, Chase Bank, Discount Tire, Chicken N Pickle and Andretti Indoor Karting.

He has been a regional civil engineer for Chick- fil-A in four different regions and has done over 75 restaurants residing in TX, LA, AR, MO, KS, OH, and NM. He has been the Texas civil engineer for Chase Bank and the Texas South engineer for Bank of America. His experience in site development in many jurisdictions throughout Texas makes him very diverse and capable of taking care of a project anywhere in the state.

He has successfully designed and permitted in additional states to include MS, FL, GA and OK. He is currently licensed in TX, MO, OH, NM, AL, MS, LA, and OK

Agan Nanayakkara

Agan Nanayakkara

Director of Traffic & Transportation

Director of Traffic & Transportation, Ph.D., P.E., PTOE, PTP, CFM, joined Terra Associates in 2017.

He is a registered Professional Engineer, Professional Traffic Operations Engineer, Professional Transportation Planner and a Certified Floodplain Manager with over 10 years of experience.

He has been involved in both public sector and private client projects located in Greater Houston and throughout Texas.

He has an extensive background on highway design, traffic engineering, signalization, hydrology and hydraulics modelling, drainage & detention, SWPPP, floodplain fill mitigation and sanitary sewer systems including lift stations.

Amanda Buckson

Amanda Buckson

Director Landscape Architecture

Amanda Buckson has over 10 years of experience in the landscape architecture profession. She joined Terra Associates in 2011.

As a registered Landscape Architect in Texas and Louisiana she has provided design services and construction observation for several retail/commercial, industrial, multi-family and public clients. These projects include rooftop design, native landscapes, rainwater harvest for irrigation, and LEED components. She also has experience in hike and bike trail design, and a background in the residential design/build industry.

She is a licensed irrigator in Texas and a LEED Accredited Professional. She has worked on projects all over Texas, including Houston and surrounding counties, Austin, Dallas/Fort Worth region, McAllen, El Paso, Midland/Odessa, Lufkin and Louisiana.

Testimonials

The guys at Terra Associates have been wonderful to work with and are a hidden gem in the engineering world.

They are affordable, knowledgeable, very responsive and proactive to solve any challenges.  They have been my go-to engineer for over the past 7 years.

Kenneth Chang

Vice President, Development and Construction, Liberty Propert Trust

The guys at Terra Associates have been wonderful to work with and are a hidden gem in the engineering world.

They are affordable, knowledgeable, very responsive and proactive to solve any challenges.  They have been my go-to engineer for over the past 7 years.

Kenneth Chang

Vice President, Development and Construction, Liberty Propert Trust

The guys at Terra Associates have been wonderful to work with and are a hidden gem in the engineering world.

They are affordable, knowledgeable, very responsive and proactive to solve any challenges.  They have been my go-to engineer for over the past 7 years.

Kenneth Chang

Vice President, Development and Construction, Liberty Propert Trust

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