OUR PROJECTS
Explore some of TWM’s projects that demonstrate our design expertise, technical knowledge, and comprehensive range of capabilities.
LATEST PROJECTS
TWM has built a solid reputation over the past 77 years. Our clients trust us, and we stand behind our work. Find out more about our engineering and geospatial projects.
Engineering
IL Route 158 Streetscape
During a repaving project, IDOT eliminated the on-street parking along IL Route 158 (Washington Street). This project will reconstruct the curbing ea [...]
Gridley Township Road Widening
McLean County Highway Department required a wind farm contractor not only to return roadways to their initial quality but also to widen two miles of [...]
U.S. Route 40 Bridge Slide
TWM provided engineering services for IDOT’s first successful bridge slide in Pocahontas, IL. A 108’ single-span superstructure was constructed on te [...]
Water Reclamation Facility Expansion & CSO Lift Station
TWM provided the complete design of this treatment plant expansion, from facility planning through construction phase engineering, increasing design [...]
Wayne City Pre-K Through 12 School
TWM provided the civil engineering and land surveying services to Wayne City Unified School District #100 for a new K-12 elementary school on their 1 [...]
Sylvan Springs Senior Apartments
TWM worked with the project developer on the site design for a 50-unit senior living apartment building that included on-site parking, sidewalks, wal [...]
Washington Stormwater Assessment Plan
TWM helped the City develop a stormwater assessment plan to aid in establishing a comprehensive approach for future improvements. Through the use of [...]
Mascoutah Water Infrastructure Master Plan
TWM prepared a comprehensive infrastructure study for the City, in which one recommendation was the replacement of all the old bare steel mains. Some [...]
O’Fallon Pavement Management System
TWM created a full inventory of the City’s roadways using MicroPaver™ to help create a five-year transportation plan. The inventory database included [...]
Carbondale Pavement Management System
TWM performed both detailed walking data collection and recently utilized mobile LiDAR to re-evaluate the City’s streets. The City has 130 centerline [...]
IAWC Office Building Addition
Project involved a 4,500± square foot addition to the existing Illinois American Water Company building and a 14± parking lot expansion to their exis [...]
America’s Central Port – South Harbor Terminal
This design-build project with Korte Luitjohan, Inc. included construction of an enclosed rail building with an underground rail pit/drag conveyor an [...]
45th Street Reconstruction
In addition to construction phase services, TWM developed plans for total reconstruction of 2270’ (0.43 miles) along 45th Street, an industrial corri [...]
Street Overlay Programs
TWM prepared construction plans, specifications, and estimates for 2.1 miles of various streets in the Ginger Creek and Autumn Glen subdivisions of G [...]
Washington Annual Leak Detection
The City of Washington, similar to other municipalities, struggle with the lost revenue due to loss of water throughout their distribution systems. T [...]
Missouri Bottom Road Slope Failure
Performed CCTV video inspections on the storm sewer drain lines along the bottom of slope under dry swale between manholes and the pavement underdrai [...]
Geospatial
USACE Metro East Sanitary District Cutoff Wall
As part of a larger federal contract, TWM performed planimetric and topographic surveys along with utility surveys on approximately 46.4 acres of lan [...]
On-Call Surveying Services
TWM was selected to resolve numerous property ownership issues and update data collection efforts on city streets and alleys. To date, the project co [...]
Bayer Lubbock Process Building 3D Scan
TWM was tasked with 3D scanning existing equipment and conditions of a process plant for 5 different floors spread amongst the plant. All sites neede [...]
Rivian Compressor Room 3D Scan & Design
TWM was tasked with 3D scanning existing conditions of a compressor room at the former Mitsubishi plant to be updated for new tenant Rivian to manufa [...]
Mid Missouri ADA Design-Build, Owner’s Representative
MoDOT selected TWM to assist with data collection, contract writing and risk management on this large-scale ADA-compliant project that touched 60 loc [...]
USACE Lock & Dam 25
The St. Louis District of the U.S. Army Corps of Engineers will be designing and constructing a new 1,200’ pile-founded lock in the auxiliary miter g [...]
USACE Lock & Dam 25
The St. Louis District of the U.S. Army Corps of Engineers will be designing and constructing a new 1,200’ pile-founded lock in the auxiliary miter g [...]
15.8 Mile Jacksonville Transmission Line
Scope included nearly 16 miles of aerial LiDAR and photography to deliver classified topography data and orthomosaic imagery. Scope of Work Aerial [...]
Bathymetric Survey of Old Quality Sand Plant Lake
Bathymetric survey of 56-acre lake used for dredging sand. TWM also performed a boundary survey of the site and property to the north for future expa [...]
Richmond Heights GIS Application Service Provider (ASP)
TWM was tasked with providing the City with an online GIS Asset Management and Permit tracking system. Through this project the GIS group georeferenc [...]
Washington Stormwater Assessment Plan
TWM helped the City develop a stormwater assessment plan to aid in establishing a comprehensive approach for future improvements. Through the use of [...]
West Terminal Capline Connection 3D Scan
TWM was tasked with 3D scanning existing conditions of a gas pipeline terminal capped with blind flanges and testing spool. TWM scanned and designed [...]
Ameren Gas Distribution Data Collection & Asset Management
Topographic survey, utility location, project coordination with subcontractors and GIS deliverable of approximately 585 miles of gas distribution mai [...]
St. Louis Municipal Opera Theatre (The Muny)
TWM was contracted to provide a control network, tied to the site datum, and column centerlines to assist local contractors with stage upgrades at th [...]
Mississippi River Bridge Flyovers
As part of the I-70 Mississippi River Bridge project, the tri-level interchange of I-55, I-64 and I-70 in East St. Louis was reconstructed so traffic [...]
EXCEPTIONAL SERVICE. NOTHING LESS.
That’s our company mission and our promise to you. Our success is built upon a solid reputation for getting the job done right. One thing we are particularly proud of is approximately 95% of TWM’s work comes from repeat business. We believe our resolution of challenges sets us apart, and based on our level of repeat business, we think our clients will agree.