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50+ Years
experience
Your Trusted Partner for Civil Engineering Solutions
TD2 has been a trusted leader in engineering, testing, and surveying services since 1967. With over 50 years of experience, we specialize in civil, structural, geotechnical, and environmental engineering, delivering tailored solutions for projects across 41 states. Our team of nearly 80 registered professionals combines deep expertise with cutting-edge technology to ensure precision and efficiency from concept to completion. We prioritize client collaboration, maintaining a full-service in-house approach that streamlines processes and reduces costs.

Recognized for award-winning work, including structural designs for healthcare facilities and infrastructure projects, we remain committed to innovation and community impact. Our investment in UAV technology and advanced software ensures clients receive actionable data and future-ready designs. With a legacy of solving complex challenges, TD2 stands as a partner dedicated to transforming visions into enduring realities.
Services
Structural Engineering Civil Engineering Land Surveys Geotechnical Engineering Environmental Engineering Materials Testing Construction Monitoring 3D Virtual Design Subsurface Soil Sampling
Details
  • Year established: 1967
Highlights and features
  • We have over 50 years of experience in civil and structural engineering across 41 states.
  • Our in-house team includes nearly 80 registered engineers and surveyors.
  • We utilize UAV technology and advanced software for precise data collection.
  • We provide end-to-end services from initial surveys to final construction oversight.
  • Our award-winning projects demonstrate a commitment to innovation and quality.
What people say
Award-winning designs Expert problem-solving Timely project delivery Advanced technology use Client-focused approach
Services
Structural Engineering
TD2 provides structural engineering solutions for new construction, renovations, and industrial projects. Our team designs robust systems for commercial, residential, and healthcare facilities, ensuring compliance with safety standards. With expertise in steel, concrete, and timber, we deliver durable, code-compliant structures tailored to client needs.
Land Surveys
Our land surveying services utilize GPS and UAV technology to produce precise topographic maps and boundary analyses. TD2 supports site development, construction staking, and ALTA/NSPS surveys, ensuring accurate data for informed design decisions and regulatory compliance.
Geotechnical Engineering
TD2 conducts subsurface investigations and soil testing to assess foundation stability and material properties. Our reports guide foundation design, slope stability, and settlement predictions, ensuring safe, cost-effective solutions for residential and infrastructure projects.
Environmental Engineering
We offer environmental assessments, stormwater management, and wastewater system design. TD2 ensures regulatory compliance for wetlands, hazardous waste, and groundwater management, supporting sustainable development and infrastructure resilience.
Materials Testing
Our in-house lab performs testing on soils, concrete, and asphalt to verify material durability. TD2's CMT/SI services ensure construction meets design specifications, minimizing risks and enhancing long-term structural integrity.
People
Robert Dreessen
Chairman of the Board
Joined TD2 in 1968, served as President until 2010, and continues shaping the firm's strategic direction with decades of leadership experience.
Douglas Dreessen
President
Leads corporate strategy and expansion, leveraging over a decade of civil engineering management to drive TD2's growth across the Midwest.
Kip Squire
Vice President
Directs structural engineering operations with 35+ years of experience in designing commercial, industrial, and healthcare facilities nationwide.
Chris Dorner
Treasurer/Secretary
Manages land surveying teams, utilizing advanced GPS technology to deliver precise measurements for residential and commercial projects since 1990.
Kurt Rohn
Geotechnical Engineering Head
Specializes in soil testing and materials analysis, with 30+ years of expertise in QA/QC for roadways, retaining walls, and structural foundations.
Questions
What engineering services does TD2 offer?
TD2 provides civil, structural, geotechnical, and environmental engineering, along with land surveying, materials testing, and 3D virtual design.
How long has TD2 been in business?
TD2 has served clients since 1967, celebrating over 50 years of engineering expertise in 2017.
What technology does TD2 use for surveys?
We employ UAV drones, GPS systems, and advanced software for accurate land surveys and data collection.
Can TD2 handle large-scale infrastructure projects?
Yes, our team manages complex municipal, commercial, and industrial projects from planning to completion.