26-1071: A resolution approving a proposed Second Amendatory Agreement between the City and County of Denver and KEENE CONCRETE, INC. for On-Call General Civil SBE Construction Services, citywide. Amends a contract with KEENE CONCRETE, INC. to add $2,169,532.43 for a new total of $7,169,532.43 and to add two years for a new end date of 11-18-2028 for On-Call General Civil SBE Construction Services, citywide (DOTI-202368837/DOTI-202683243-02).