Hinsdale Oasis to Ogden Avenue – I‑21‑4808 – Illinois

The I‑294 Central Tri-State Tollway project from Hinsdale Oasis to Ogden Avenue is part of the Illinois Tollway’s $4 billion initiative to reduce congestion, modernize aging infrastructure, and meet future transportation demand. This project involves the widening and reconstruction of the mainline pavement between Milepost 25.0 (Hinsdale Oasis) and Milepost 27.8 (Ogden Avenue) while improving safety, drainage, and operational efficiency along one of the region’s busiest corridors.

Comprehensive Construction Oversight
DB Sterlin provides full construction management services for this project, ensuring that all work is completed in accordance with project plans and specifications. Responsibilities include on-site inspection, verification of contractor work and materials, preparation and maintenance of project documentation, quantity measurement and tracking, and traffic control monitoring. Survey support services are also provided to verify contractor layout and track volume-related quantities throughout construction.

Roadway and Infrastructure Improvements
The scope of work includes reconstruction of the center median, widening and reconstruction of mainline pavement, and modifications to the Hinsdale Oasis exit Ramp C and entrance Ramp F. Additional improvements include slope wall modifications, storm sewer installation and drainage upgrades, grading, retaining and noise abatement walls, pavement marking and signage installation, guardrail and concrete barrier construction, and the development of a new collector-distributor road. The project also incorporates temporary and permanent roadway lighting and Intelligent Transportation System (ITS) facilities, including gantry and overhead sign structures, to enhance traffic management and safety.

Delivering Safe, Efficient, and Modernized Infrastructure
Through proactive construction oversight, surveying, and quality control, DB Sterlin ensures that the project is executed safely, efficiently, and in compliance with engineering standards. The reconstruction and widening of I‑294 between Hinsdale Oasis and Ogden Avenue strengthens corridor capacity, improves roadway safety, and supports the Tollway’s long-term operational reliability for commuters and freight traffic.