Attachment D Description of Base Bid and Alternates.docx

This is an Attachment D document from the Oregon Department of Transportation (ODOT) describing the base bid and additive alternates for the I-84: Farewell Bend Chain Up Paving Project. The project encompasses pavement rehabilitation on Interstate 84, with the primary scope involving 4-inch asphalt concrete pavement (ACP) cold plane removal and inlay of 12-foot wide chain up areas for both eastbound and westbound lanes, extending 6 inches into the existing 10-foot paved shoulder to create a clean joint. The base bid includes temporary traffic control for both directions. The bid submission deadline is March 20, 2025, with posting date of February 24, 2025. Bidders are required to review Attachments A (Special Provisions) and B (Plans) for detailed technical specifications and project requirements.

The contract award will be based on the lowest responsive bid combining totals from the base bid and two additive alternates selected in alphabetical order if funding permits. Add Alternate A involves 2-inch ACP cold plane pavement removal and inlay of the eastbound existing 10-foot shoulder, while Add Alternate B involves the same work for the westbound 10-foot shoulder. ODOT has limited funding available for this project, necessitating the tiered bid structure to maximize construction work completion within available budget constraints. All alternates, if selected for inclusion, must comply with contract specifications and plans. The specific award amount and funding source are not detailed in this attachment, requiring reference to additional procurement documents.