About Us
Employee Owned. Service Driven.
We believe in offering the services our clients need throughout the life of their land development projects by providing civil / site engineering, land surveying, geotechnical engineering, environmental due diligence services, Construction Materials Testing (CMT), and inspection during the construction phases of a project.
TERRA is unique among engineering firms in that we provide “turn-key” services in-house. These services can provide significant cost savings to our clients due to cross-over of effort in our various departments: The bigger the project the larger the cost savings. Being an employee-owned company creates an attitude of where everyone at TERRA has an investment in doing the best job possible for our clients and ensuring we exceed the expectations of our clients. All our team members have “skin in the game” and understand how important repeat business is for TERRA long term.
Meet our team
Mark Behrens, BSCE
President & Principal of Engineering & Land Surveying
As a company founder and the principal of engineering and land surveying services, Mark has more than 26 years of experience in both the private and public sector and has considerable experience in Construction Materials Testing (CMT) / Inspection services and has specialized in Geotechnical engineering. He oversees many aspects of TERRA’s services and shares responsibilities for business development, strategic partnerships, back office operations, and community outreach.
Gregory (Greg) R. Ripple, PE
Vice President – Civil Engineering / Site Design
Greg has 16 years of experience in civil engineering consulting industry. With his previous experience working for a commercial developer for 4 years has a firm understanding of what our clients needs and expectations are. His expertise in development services include conceptual layouts, construction plans, zoning assistance, drainage design and analysis, floodplain management consulting, municipal plan reviews and utility design and coordination.
Stephen (Steve) M. Roeschlein, PLS / PE / CFM
Vice President – Land Surveying
Steve has over 35 years of experience in the land surveying & civil engineering consulting industry. He is unique in that he has a dual degree and is both a professional land surveyor and civil engineer. His expertise in land surveying includes boundary retracement surveys, land descriptions, easement preparation, subdivision platting, right-of-way engineering, location control route surveys, field data collection, and construction staking. In addition, Steve has considerable experience in site design development services which include conceptual layouts, construction plans, zoning assistance, drainage design and analysis, floodplain management consulting, municipal plan reviews and utility design and coordination.
Michael Byrnes, B.S. BCT
Sr. Engineering Technician & Inspection Specialist
Mike has over 35 years of experience as a Senior Engineering Technician and Construction Inspection Specialist in the Construction Consulting Department for TERRA.
Mike is qualified to perform the following testing and inspection services, which include field and inspections testing on soils, shallow and deep foundations, concrete, masonry, aggregates, hot-mix asphalt, fireproofing, steel and roofing. Mike prepares detailed daily reports, performs maintenance and calibrations on field equipment, and provides training to entry level technicians.
Brian L. Slake, BSMET
Survey Crew Chief / Senior Construction Inspector
Brian has more than 20 years of experience in providing construction materials testing (CMT) / Inspection and land survey field services. His unique combination of construction inspection and land surveying experience allow him and his crew to deliver a more comprehensive, cost-effective product for TERRA’s clients.
Brian’s inspection experience covers all areas of construction material testing used within construction including field and lab testing of soils, concrete and asphalt, structural inspections including wood and steel framing and reinforcing steel, infrastructure inspections including sanitary, storm and water. He is a certified INDOT technician in the state of Indiana.
Diego A. Martinez
CAD Drafter / Designer
Diego has a few years of experience contributing and supporting the planning and execution of architectural projects, both private and public. Working in several things including helping prepare architectural plans and designs, assisting in essential presentations, and helping develop and finalize building plans.
Diego obtained his bachelor’s degree in architecture at Rafael Urdaneta University in his home city Maracaibo, Venezuela. He has a supportive role in the execution of plot plans at TERRA. Diego believes we can improve human life by creating timeless, free, joyous spaces for all activities in life.