Supplemental Specifications.pdf

This Supplemental Specifications document supports an Iowa Department of Transportation procurement for the installation of a new 120-foot by 15-inch tile at US-59 and Station 494+51 (RP 208.32) in Osceola County. The project requires qualified contractors to execute precise tile installation work in accordance with referenced technical specifications contained in the documents listed: 3010.pdf, 4010.pdf, 4020.pdf, 4030.pdf, 5010.pdf, 5011.pdf, 6010.pdf, 7040.pdf, 9010.pdf, and IM 558.pdf. The bid submission deadline was February 13, 2026, with the contract opportunity posted on February 11, 2026, allowing a two-day response window for interested parties to prepare and submit proposals demonstrating their qualifications and experience in similar highway tile installation projects.

The supplemental specifications document provides the technical framework and performance standards that contractors must meet during project execution. No specific contract award value, budget range, set-aside designations, disadvantaged enterprise requirements, or incumbent contractor information is disclosed in the available materials. Prospective bidders should reference the complete specification documents provided and contact the procuring agency directly for clarification on technical requirements, site visit opportunities, or any additional information necessary to prepare a competitive and compliant proposal within the abbreviated submission timeline.