Business Details
50+ Years
experience
Trusted Civil Engineering & Geospatial Solutions in Swansea, IL
TWM has established itself as a leading engineering and geospatial firm with 79 years of experience serving clients across Southern Illinois, Missouri, Tennessee, and beyond. As a 100% employee-owned company, we combine deep technical expertise with a commitment to solving complex infrastructure challenges for public and private sector clients. Our multidisciplinary teams specialize in civil and structural engineering, land surveying, and advanced geospatial technologies, delivering solutions that balance innovation with practicality.With 10 offices strategically located across three states and remote capabilities, we maintain a client-centric approach that has earned us 95% repeat business. Our core purpose remains focused on creating effective, efficient, and economical solutions while upholding our mission of Exceptional Service. Nothing Less.
Services
Civil Engineering
Structural Engineering
Land Surveying
Geospatial Services
Water/Wastewater Engineering
Pavement Management
Design-Build
Construction Phase Services
3D Laser Scanning
Hydrographic Surveying
Details
- Year established: 1946
Highlights and features
- We have 79 years of experience solving complex infrastructure challenges.
- Our employee-owned structure ensures every client works with an owner.
- 95% of our business comes from repeat clients.
- We utilize cutting-edge geospatial technologies like 3D laser scanning.
- We provide comprehensive services from concept through construction.
Services
Civil Engineering
TWM's civil engineering team addresses transportation, land development, and infrastructure challenges with innovative solutions. We provide comprehensive services from conceptual planning through construction for roads, bridges, and municipal systems. Our engineers combine technical expertise with practical experience to deliver cost-effective, sustainable infrastructure projects that meet regulatory requirements and community needs.
Structural Engineering
Our structural engineering division specializes in bridge design and associated infrastructure. With multiple NBIS-certified team leaders, we deliver safe, durable structures including retaining walls, culverts, and sign foundations. Our team has designed the first diverging diamond interchange in Illinois and provides comprehensive bridge inspection services to ensure structural integrity.
Geospatial Services
TWM's geospatial department utilizes cutting-edge technology including 3D laser scanning, mobile LiDAR, and aerial drones. These tools enable precise data collection for topographic mapping, construction layout, and infrastructure analysis. Our reality capture solutions provide detailed site information that enhances project planning and decision-making across all engineering disciplines.
Water/Wastewater Engineering
As recognized leaders in water infrastructure, we design treatment plants, distribution systems, and wastewater collection networks. Our team has implemented innovative technologies like UV disinfection systems and sequencing batch reactors. We help clients navigate regulatory compliance while ensuring sustainable, efficient water management solutions for communities of all sizes.
Pavement Management
Our pavement management services help government clients optimize road maintenance budgets through data-driven decision-making. Using specialized inspection tools, we evaluate pavement conditions to forecast short- and long-term maintenance needs. This systematic approach extends infrastructure lifespan while maintaining road safety and functionality for public transportation networks.
Questions
What engineering services does TWM offer?
TWM provides civil engineering, structural engineering, water/wastewater engineering, pavement management, and design-build services for public and private sector clients.
What geospatial technologies does TWM utilize?
We employ 3D laser scanning, mobile LiDAR, aerial LiDAR with drones, hydrographic surveying, and GIS mapping technologies for precise data collection.
In which regions does TWM operate?
TWM serves clients throughout the Midwest and Southeast United States, with primary operations in Illinois, Missouri, and Tennessee.
How long has TWM been in business?
TWM has been solving infrastructure challenges since 1946, making us one of the most experienced engineering firms in the region.
What makes TWM different from other engineering firms?
As a 100% employee-owned company with 95% repeat business, our ownership structure ensures every client works directly with company owners committed to exceptional service.
Does TWM handle large-scale infrastructure projects?
Yes, our 180+ team members have completed major projects including interstate reconstructions, water treatment facilities, and complex bridge designs.
Reviews (1)
James Fowler
Mar 07, 2018
Report
These guys are top notch. If you are looking for surveying or laser scanning services, I can not recommend TWM more highly!
