RR-25-2015 Addendum 1.pdf

The file is Addendum No. 1 to the Contract Requirements for RR-25-2015 issued by the Illinois State Toll Highway Authority (ISTHA), concerning the Veterans Memorial Tollway (I-355) Bridge Rehabilitation project. The addendum covers a bridge rehabilitation contract for the stretch between Mile Post 10.2 and Mile Post 17.6 in Will and Cook Counties, with electronic bids due on May 29, 2025, at 10:30 a.m. local time. The project scope includes rehabilitation of northbound and southbound I-355 bridges over the Des Plaines River Valley, involving retaining wall removal and replacement, noise abatement, erosion control, landscaping, pavement marking, drainage repairs, and traffic maintenance. An optional pre-bid meeting was held on April 29, 2025, and the addendum includes revised contract pages, special provisions, and responses to plan holder questions.

The addendum incorporates updates to the Schedule of Prices, including a revised unit price for non-compliance with contractor quality program special provisions. The document outlines specific compliance goals, including an 18% Disadvantaged Business Enterprise (DBE) program participation and a 2% Veteran-Owned Small Business (VOSB) program goal. Workforce diversity targets are set at 19.6% for minority participation and 6.9% for female participation. The contract includes various contingency and quality program allowances, with total adjustments and contract modifications detailed across multiple line items. Notably, the addendum provides clarifications on post-tensioning grout remediation, inspection procedures, and measurement methods for specific construction activities, ensuring comprehensive guidance for potential bidders.