RR-25-2015 Addendum 1.pdf

This document is an Addendum No. 1 to Contract RR-25-2015 issued by the Illinois State Toll Highway Authority for a bridge rehabilitation project on the Veterans Memorial Tollway (I-355). The contract covers the section between Mile Post 10.2 and Mile Post 17.6 in Will County and Cook County, Illinois. The addendum includes updates to contract requirements, schedule of prices, and special provisions, and was prepared in conjunction with an optional pre-bid meeting held on April 29, 2025.

The contract scope involves rehabilitation of northbound and southbound I-355 bridges over the Des Plaines River Valley, including retaining wall removal and replacement, noise abatement, erosion control, landscaping, pavement marking, drainage repairs, and traffic maintenance during construction. The project includes diversity and compliance goals, such as an 18% Disadvantaged Business Enterprise (DBE) participation and 2% Veteran-Owned Small Business (VOSB) participation. The addendum provides updated pricing schedules, special provisions, and adjustments to various line items, with a total contingency and contractor's quality program budget of $1,055,000. The contract also includes provisions for unforeseen additional maintenance, construction allowances, and various technical specifications.