A Complex Project
A multi-faceted project, the design for this busy and complex intersection improved vehicular access and reduced adverse travel distance. Pedestrian and bicycle safety was enhanced, and connectivity was improved.
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Full Service Delivery
Civiltech provided Phase I, II, III and Structural Engineering Services to realign Harger Road and provide a signalized intersection at York Road. With integrated teams, specialized services, and an extensive knowledge management program, Civiltech guided the project and its design concepts from planning and studies through design engineering to a successful construction outcome. Civiltech’s deep bench of specialized engineers provided many additional services including highway noise analysis, traffic signal and signal system design, and lighting design.
Improving Access
The intersection had been restricted to right-in/right-out only access. Therefore, motorist traveling eastbound on Harger Road destined to the north along York Road and traveling northbound on York Road destined to the west along Harger Road would need to take lengthy routes involving significant adverse travel distance. The westbound movement along Harger Road included significant demand due to an I-88 entrance ramp just west of the York Road intersection.
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Click on image to view large.
Improving Bike and Pedestrian Safety and Connectivity
The at-grade Salt Creek Trail crossing of Harger Road was challenging for bicyclists and pedestrians due to high volumes and high speed traffic. Also, it was located very close to the I-88 westbound on-ramp from Harger Road. Predicted increases in traffic volumes would result in increased trail user exposure to vehicular conflicts at this crossing, and roadway widening improvements along Harger Road would increase the crossing distances required of users to enter the forest preserve. Thus, the project included improvements to the Salt Creek Trail and its crossing at Harger Road. A new underpass was constructed to separate pedestrians and bicyclists from the Harger Road crossing vehicular traffic.
Stakeholder and Interagency Coordination
Many stakeholders and agencies were involved in this project. Civiltech led coordination with IDOT, the Illinois Tollway, the Forest Preserve District of DuPage County as well as other local agencies and stakeholders.
This Project Incorporates the Following:
- Full service delivery
- Enhanced user safety for vehicular, bicycle, and pedestrian users
- Pedestrian and bicycle connectivity
- Roadway realignment
- Underpass design
- Coordination of multiple stakeholders and agencies
- STP, CMAQ, and local funding
- IDOT Coordination
Scope of Services
- Capacity Analysis
- Intersection Design Studies
- Highway Noise Analysis
- Project Development Report
- Interagency Coordination
- Preparation of Contract Plans,
- Specifications, and Estimates
- Roadway and Highway Design
- Pedestrian Bicycle Underpass
- Bikeway & Pedestrian Facility Design
- Traffic Signal and Signal System Design
- Lighting Design
- Resident Engineering
- Construction Layout
- Construction Management
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