Addendum No.3 – ITB 26-23-214657 Bridge 158.7 Replacement.pdf

Addendum No. 3 is a clarification document issued by the Alaska Railroad Corporation (ARRC) in response to bidder questions for ITB 26-23-214657 regarding Bridge 158.7 Replacement construction. The addendum addresses two specific questions: the availability of as-built drawings for the existing bridge and the feasibility of modifying pile configurations at the abutments. ARRC provided preliminary bridge plan sets (Std 100-10 and Std 100-11) in response to the first inquiry. Regarding the second question, ARRC clarified that pile configuration at the abutments is required to be two rows of three piles of either 12-inch or 16-inch diameter, as specified on page 24 of the geotechnical report, thereby declining the bidder's request for a single row of 16-inch diameter piles. The document requires bidders to acknowledge receipt of this addendum and all prior addenda in their Supply Bid Form (Form 395-0129).

The addendum was issued on July 2, 2026, and represents a routine clarification mechanism for the ongoing competitive bidding process. No pricing modifications, set-asides, or funding changes are introduced in this addendum. Contact for questions and addendum acknowledgment should be directed to Sarah Wallace, Contract Administration Specialist at the ARRC, via email at wallaces@akrr.com or by phone at (907) 265-2425 or (907) 744-0031.