Title/Name/Summary
153rd Street and Ravinia Avenue Roundabout, Phase II Design Engineering, Contract Amendment #2
History
On February 19, 2024, the Village Board approved the Phase II Design Engineering contract (RFQ #23-049) with V3 Companies, Ltd. The project is currently in final engineering and right-of-way acquisitions are underway. It is anticipated that the Illinois Department of Transportation (IDOT) will let the project later in 2026 with construction beginning in early 2027.
Based on the Village’s experience with the existing roundabout at 151st Street and West Avenue, Engineering staff requested that the consultant incorporate additional vehicular and pedestrian safety enhancements into the roundabout design. These enhancements include increased entry deflection at the splitter islands to reduce vehicle speeds and the addition of Rectangular Rapid Flashing Beacons (RRFBs). IDOT accepted these requests but required that the changes proceed through their formal addendum approval process.
Preparation of the addendum involves updates to the approved Phase I documentation, including revised geometric exhibits, updated signing and pavement marking plans, environmental confirmations, and public involvement summaries.
Because the additional work was not included in the original Phase II scope, the consultant is requesting a contract amendment to their Phase II contract to cover the efforts required to complete the addendum and associated updates. These efforts will ensure compliance with IDOT requirements and maintain the project schedule.
The following is a list of additional services for this contract amendment:
- Updated fastest-path analysis and safety justification
- Revised geometric exhibits and design-vehicle paths
- Updated signing, marking, and RRFB plan details
- Environmental documentation updates (ESR, PESA, cultural review)
- Public involvement summary and coordination letters
- Compilation of requ...
Click here for full text