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Trusted Engineering & Surveying Services in North Carolina
The Thrasher Group NC is a multi-disciplinary consulting engineering and field services firm rooted in the community, dedicated to addressing regional infrastructure needs. Established through the strategic integration of staff from Robinson & Sawyer Inc. and Gray Surveying Company, we combine decades of local expertise with a robust team of licensed professionals. Our services span water systems, wastewater treatment, land surveying, transportation engineering, and structural design, supported by certified materials testing technicians. With offices in Gastonia and Kings Mountain, we prioritize client collaboration, technical excellence, and sustainable solutions.

Our team includes licensed professional engineer Michael Tyler, whose extensive experience in civil and bridge engineering across six states strengthens our capacity to deliver complex projects. We specialize in transforming challenges into practical, cost-effective outcomes through innovative design, regulatory compliance, and construction oversight. Our integrated approach to engineering and surveying services ensures clients receive cohesive, precision-driven support from concept to completion.
Services
Water Systems Engineering Wastewater Treatment Design Land Surveying Transportation Engineering Materials Testing Structural Engineering Land Development
Highlights and features
  • We offer licensed engineering expertise across six states with specialized bridge engineering experience.
  • Our team integrates engineering and surveying services for cohesive project execution.
  • We provide proven solutions for complex infrastructure challenges with local market knowledge.
  • Our staff includes certified materials testing technicians for construction quality assurance.
  • We maintain a client-first approach with personalized project management from start to finish.
Services
Water Systems Engineering
Our water systems engineering team designs safe, efficient drinking water infrastructure. We specialize in distribution systems, treatment plants, and pump station design while addressing environmental compliance and cost efficiency. Clients benefit from our expertise in membrane filtration, reverse osmosis, and aging system rehabilitation to ensure reliable water supply solutions.
Wastewater Treatment Design
We plan and supervise municipal and industrial wastewater collection and treatment systems. Our engineers address regulatory requirements, environmental impact, and funding challenges while delivering solutions for new systems, rehabilitation projects, and long-term control plans to protect water quality and community health.
Land Surveying
Led by industry veteran Joey Gray, our survey division provides boundary surveys, topographic mapping, and construction layout services. We utilize advanced GPS and geodetic technologies for federal, state, and private clients, supporting infrastructure projects with precise data collection and mapping solutions.
Transportation Engineering
Under PE lead Michael Tyler, we deliver highway, bridge, and municipal street projects from initial planning through construction. Our services include traffic studies, pavement evaluation, and stormwater management to create safe, efficient transportation networks that meet evolving community needs.
Materials Testing
Certified technicians perform concrete, aggregate, and soil testing using nuclear density gauges and laboratory analysis. Our special inspections ensure construction materials meet industry standards, providing critical quality control for infrastructure projects of all scales.
People
Michael Tyler
Office Lead / Professional Engineer
Licensed engineer in six states with extensive civil and bridge engineering experience. Specializes in technical project execution and cross-disciplinary team leadership for infrastructure development across North and South Carolina, Virginia, Kentucky, Ohio, and West Virginia.
Questions
What engineering services does The Thrasher Group offer in North Carolina?
We provide water systems engineering, wastewater treatment design, transportation engineering, land surveying, materials testing, and structural engineering services for municipal and private clients.
Do you handle both public and private infrastructure projects?
Yes, our team works with federal, state, and private clients on projects ranging from municipal water systems to commercial land development.
What makes your surveying services unique?
Our survey division combines advanced GPS technology with engineering expertise to deliver precise measurements that directly support infrastructure design requirements.
Can you assist with regulatory compliance for engineering projects?
Our engineers have extensive experience navigating environmental regulations and permitting requirements for water, wastewater, and transportation infrastructure projects.
Do you offer construction phase support?
Yes, we provide materials testing, special inspections, and construction monitoring to ensure project specifications are met during implementation.