As a full-service engineering consultant, we put our focus on five key disciplines – Transportation, Structural, Land Development, Water Infrastructure, and Survey/Geospatial – to deliver cost-effective solutions. With our depth of capabilities, we can provide a broad range of design projects and related services.


Exceptional Service. Nothing Less.

With TWM, you can expect a highly skilled team of professionals who understand your types of projects, will listen to you, effectively communicate with you, and pay attention to details. We meet challenges every step of the way.

Solving Problems Is Our Passion

As a full-service firm, we provide a comprehensive approach, a smooth workflow, and the knowledge, skill, and experience to complete your project correctly. Think of TWM as your trusted partner. You can rely on us and be assured that we stand behind our work.

  • Your project needs are understood

  • You can expect us to take an innovative look

  • Your project will be completed on time

  • Your project will be completed within budget

  • Your project will get done right


TWM operates a large and very robust Geospatial department to quickly serve our clients. We offer reality capture tools (3D laser scanning, mobile LiDAR, UAVs) in additional to traditional surveying methods.

We have the in-house resources to provide multiple, fully-equipped survey crews to match a project’s needs and scope of work.

This reality capture tool uses a high definition laser scanner to collect millions of data points.

An innovative mapping solution, this reality capture technology is a game-changer and completes data collection five times faster than traditional methods.

Our drone team, who are licensed remote pilots, gather visual data of job sites using Unmanned Aerial Vehicles (UAVs) equipped with sensors and cameras.

TWM offers a highly skilled team of professionals who measure and map water bodies and shorelines.

This digital mapping method combines visual features with supporting databases to maintain utilities, and many other activities.

TWM employs various detecting equipment to survey and map underground utility depth and offset with high accuracy.

Our engineered layout services use state-of-the-art technologies to provide accurate and reliable construction plan data.


Over the years, TWM and the firm’s work have been recognized as exemplary on local, state, and national levels. Below is a partial list of recent honors.

  • 2024 ACEC Missouri Grand Award | Transportation
    Missouri Route 100 Rehabilitation | St. Louis, MO

  • 2020 ACEC Merit Award | Transportation
    IL River Bridge District | East St. Louis, IL

  • 2019 ACEC Merit Award | Waste & Stormwater
    South Side Park Lift Station and Relief Sewers | Belleville, IL

  • 2016 ACEC Honor Award & National Recognition Award | Transportation
    First IL Diverging Diamond Interchange | Marion, IL

  • 2015 ACEC Honor Award & National Recognition Award | Waste & Stormwater
    Water Treatment Facility Expansion | Belleville, IL

  • 2012 ACEC Merit Award | Structural Systems
    MetroBikeLink Signature Bridge | Swansea, IL

  • 2011 ACEC Honor Award & National Recognition Award | Surveying & Mapping Technology
    3D Scanning of Rock City Business Complex National Archives & Records Administration/National Personnel Records Center Annex II | Valmeyer, IL