RR-25-2015 Addendum 2~1.pdf

Addendum No. 2 to Contract RR-25-2015 is issued by the Illinois State Toll Highway Authority (ISTHA) for the Veterans Memorial Tollway (I-355) Bridge Rehabilitation project. The addendum, dated May 16, 2025, modifies the original contract requirements and provides updates for electronic bidding via BidBuy until May 29, 2025, at 10:30:00 A.M. local time. The addendum includes revisions to Special Provision pages, new Special Provision pages for cleaning and painting contact surface areas of existing steel structures, updates to Contract Drawing 128 with bearing details, and responses to Plan Holders' requests for information. The changes primarily focus on surface preparation, painting procedures, and waste management requirements for bridge infrastructure rehabilitation.

The addendum specifies detailed technical requirements for cleaning and painting existing steel structures, including surface preparation methods, paint application procedures, and waste handling protocols. Contractors must follow strict guidelines for chloride remediation, surface preparation, painting techniques, and environmental compliance. The work includes cleaning primary and secondary steel connections, applying specific primer and paint coatings, and managing hazardous waste generated during the project. The contractor is responsible for comprehensive quality control, waste disposal, and meeting environmental regulations. The basis of payment indicates that these activities will be considered part of the structural steel work and are included in the existing contract specifications without additional compensation.