

highway + roadway engineering





our expertise
Toll authorities, local agencies, and state departments of transportation across the nation count on Patrick for cost-effective transportation infrastructure services from initial planning through construction close-out. Our services include the planning and design of roads, highways, bridges, and interchanges in rural, urban, and mass transit environments. Patrick understands that meeting community objectives, adhering to required standards, and improving safety are key concerns of any transportation project. By partnering with our clients to design projects that are right-sized for current and future needs, and with laser focus on quality, safety, and lifecycle costs, Patrick provides our clients with comprehensive solutions that stand the test of time.



our disciplines
Corridor Studies + NEPA Documentation
Traffic + Transportation Planning
Preliminary Engineering + Feasibility Studies (Alternatives Analysis)
Traffic Engineering + Studies
Intersection + Roadway Design
Highway + Interchange Design
Drainage Design + Permitting
Maintenance of Traffic + Construction Sequencing
Public Involvement
Constructability + Value Engineering
Pedestrian Trail Planning + Design
Context Sensitive Solutions (CSS)
Funding Applications
Project + Program Management
Owner’s Representative Services
Scheduling, Estimating + Risk Management
our projects

Illinois Department of Transportation (IDOT) | I-80 – Ridge Road to US Highway 30
The I-80 Phase I Preliminary Engineering and Environmental Study provided a detailed look at the current and future transportation needs of the corridor. The study included an analysis of existing roadway and bridge deficiencies, safety and capacity issues, and future transportation needs, and included an extensive public involvement process. Patrick, as part of a joint venture team, was selected by the Illinois Department of Transportation (IDOT) to provided preliminary and final design engineering, as well as environmental services for the improvement of I-80 from Ridge Road to U.S. Route 30, a length of approximately 16-miles. The study addressed near-term rehabilitation improvements to the roadway and bridges, as well as investigated long-range improvements for the future of this important intercontinental expressway. The improvements provide additional travel lanes within the median area. Additionally, Patrick investigated more than 40 structures as part of the project, including the major twin truss bridges that carry I-80 over the Des Plaines River. A key planning tool was a public involvement program based upon the principles of IDOT’s Context Sensitive Solutions (CSS). Public outreach meetings, public workshops, and stakeholder meetings brought the public into the project development process early on. Corridor Advisory Group, Technical Task Force, and Corridor Interest Group meetings facilitated the coordination with the stakeholders.