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
McKnight Road Sidewalk & Resurfacing
TWM provided surveying and property research, preliminary plans, and right-of-way plans for this roadway resurfacing project that consisted of millin [...]
Traffic Signal Upgrade at Blythes Ferry Road
Prepare design plans for the upgrade of the traffic signal including new cabinet and controller, new traffic signal heads, cabling and video detectio [...]
Great Rivers Greenway Bridge Inspection Program
TWM and a sub-consultant were hired by Great Rivers Greenway (GRG) to develop a system-wide bridge inspection program to ensure that structures are a [...]
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 [...]
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 [...]
Auffenberg Auto Mall
TWM collaborated with the Auffenberg Car Dealership to master plan their new state-of-the-art Auto Mall Facility. The 50+ acre development encompasse [...]
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 [...]
Hydraulic Model & Water Infrastructure Master Plan
The Village of Freeburg's existing water system needs upgrades to provide adequate fire protection and replace water mains and tanks. TWM prepared a [...]
Shiloh Pavement Management System
In order to improve the management of the Village’s pavement, TWM created a full inventory of their roadways using MicroPaver™. The inventory databas [...]
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 Garage Expansion
This design-build project involved construction of a 9,725’ addition to the existing Illinois American Water Company (IAWC) garage. Scope included to [...]
Patty Ann Court Sanitary Sewer Extension
This design-build project extended the sanitary sewer along a private road to serve three properties that were originally on septic systems. TWM work [...]
Various ILAW Water Main Construction Observation
We have completed construction observation for various ILAW districts throughout Illinois. These projects include full time observation of the work, [...]
MetroBikeLink Trail System
TWM has provided on-going design and construction phase services to the St. Clair County Transit District for the extension of the MetroBikeLink Trai [...]
Edgemont Booster Improvements
The Edgemont Booster Pump Station site uses two ground storage tanks and a pump station to maintain pressures throughout the Belleville gradient. The [...]
Carlyle Lake Sewer Camera & Smoke Testing
TWM performed on-site testing and inspection services for the USACE, spanning multiple sections of Carlyle Lake, from Boulder Campground to Coles Cre [...]
Geospatial
USACE Lake Shelbyville AP Boundary Survey
TWM performed recovery and restoration surveys in order to recover or reestablish Corps boundary angle points (A.P.) and bearing objects. Using origi [...]
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 [...]
Saint Louis Zoo Primate Canopy Trails
TWM was contracted to provide construction layout for the new Primate Habitats and Canopy Trails. While initial layout only included the layout of a [...]
Historic Kirkwood Train Station
TWM was hired to perform a 3D terrestrial scan of the interior and exterior conditions of this historic train station. The architect had requested th [...]
ADA Transition Plan
Like many cities, Pekin has struggled keeping up with their sidewalk infrastructure needs. Unlike other cities, Pekin has recently entered into a Con [...]
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 [...]
16 Mile 69kV Electric Transmission Line LiDAR
From New Berlin - Pisgah, UAV LiDAR was collected on 16 miles of a 69kV electrical transmission line to assist with engineering a line-rebuild. High [...]
USACE Lower San Joaquin River Valley Feasibility Study
Perform aerial LiDAR and orthophotography topographic mapping along a 23-mile corridor of the Lower San Joaquin River Valley. To ensure the accuracy [...]
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 MESD Topographic & Bathymetric Surveys
Perform planimetric, topographic, and bathymetric surveys (+/- 11.5 acres) in order to assist with the completion of the plans and specifications for [...]
Des Peres GIS Application Service Provider (ASP)
Converted data is stored via on-premise servers and is securely distributed through a web-enabled server, providing the ability to analyze, update, a [...]
East Peoria GIS On-Call Support
TWM is providing interim GIS System Administration for the City of East Peoria. This includes managing multiple servers, databases, and portal that m [...]
CLS Prairie Power – Saidora to Bluff Springs
Before the design of nearly 29 miles of electric transmission lines across Cass and Mason County could commence, TWM first established a primary cont [...]
Fort Leonard Wood AC Water Main Replacement
Fort Leonard Wood contained a substantial amount of asbestos cement water main originally installed in the 1960s and implemented a program for replac [...]
MidAmerica Airport Terminal Phase 2
Scope for phase 2 involves relocating the facility’s gas service and building the exterior shell for the expanded terminal building. The 41,000 squar [...]
Auffenberg Auto Mall
TWM collaborated with the Auffenberg Car Dealership to master plan their new state-of-the-art Auto Mall Facility. The 50+ acre development encompasse [...]
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.