26-1181: A resolution approving a proposed First Amendment between the City and County of Denver and HNTB CORPORATION for professional services to support 7th Runway Environmental Analysis and Documentation operations at Denver International Airport. Amends a contract with HNTB Corporation to add five years for a new end date of 10-7-2031 for the 7th Runway Environmental Analysis and Documentation professional services to support operations at Denver International Airport. No change to contract capacity, in Council District 11 (PLANE-202057147/PLANE-202684875-01).