26-1070: A resolution approving a proposed Second Amendatory Agreement between the City and County of Denver and Halcyon Construction, Inc. for On-Call General Civil SBE Construction Services, citywide. Amends a contract with Halcyon Construction, Inc. to add $4,679,138.69 for a new total of $9,679,138.69 and to add two years for a new end date of 11-18-2028 for On-Call General Civil SBE Construction Services, citywide (DOTI-202368836/DOTI-202683242-02).