Title
Airport Fourth Parallel Runway South End-Around Taxiway Change Order
Action
Action:
Approve change order #2 for $23,945,449.84 to the contract with Ames Construction, Inc. for the Fourth Parallel Runway South End-Around Taxiway project.
Body
Staff Resource(s):
Haley Gentry, Aviation
Jack Christine, Aviation
Explanation
§ The Fourth Parallel Runway Program will enhance airfield capacity and operational efficiency and reduce the number of active runway crossings.
§ As part of the Runway Program, the South End-Around Taxiway (SEAT) project includes the construction of a new taxiway that will provide aircraft the ability to continuously taxi around the south end of the two center runways and associated airside and landside elements in preparation for the future Runway 1C-19C.
§ On October 28, 2024, City Council approved a contract with Ames Construction, Inc. for $136,914,188 for the Fourth Parallel Runway South End-Around Taxiway project.
- Change order #1 was to update the Liquidated Damages associated with Intermediate Completion Times and did not impact the total value of the contract.
§ This change order will provide for additional excavation, additional retaining wall drainage and reinforcement, two duct bank systems to support Runway 1C-19C navigational aids, construction of a vehicle access road and tunnel underneath Taxiway N, and extending the contract by nine days due to weather and operational impacts.
§ This change order is necessary to accommodate soil and ground water conditions and rock encountered during excavation, as well as ensure access to the area south of Taxiway N for future Airport development needs.
§ The new total value of the contract including change order #2 is $160,859,637.84.
Disadvantaged Business Enterprise
A new Interim Final Rule (IFR), which is binding law for federally funded contracts, was published in the Federal Register on October 3, 2025. In compliance with the new IFR, the DBE contract goal is not modified by this amendment or change order and until further notice, DBE participation cannot be counted towards any goal. In time, the IFR will allow goal setting/modification as well as the counting of DBE participation to resume. At that time appropriate action will be taken to ensure that this contract and project remain in compliance with the IFR and all applicable law.
Fiscal Note
Funding: Aviation Capital Investment Plan