Newt Graham Lock and Dam 18 Tainter Gates Replacement

The U.S. Army Corps of Engineers--Tulsa District has been tasked to solicit for and award a contract for the replacement of tainter gates 1, 2, and 3 at the Newt Graham Lock and Dam 18 located outside of Inola, OK (Wagoner County). The proposed project will be a competitive, firm-fixed-price contract procured in accordance with FAR 15, Negotiated Procurement, using the trade-off process.

The gate replacement work consists of the removal of the existing Tainter gates and trunnion yoke assemblies, the off-site fabrication of the new Tainter gates and trunnion yoke assemblies, and the delivery and installation of the new Tainter gates at Newt Graham Lock & Dam. 18. The newly fabricated Tainter gates are 60ft x 27ft in size and weigh approximately 181,000 lbs. each. The gates and yoke assemblies will be required to be fabricated in an AISC certified facility.

All awarded Tainter gates will be fabricated first prior to performing any removal of existing Tainter gates and install. Upon delivery of all Tainter gates, coordination will be needed with USACE personal to dewater the Tainter Gate bays. Only 1 tainter gate can be out of service at any given time. Removal and disposal of the existing tainter gates will be required prior to performing the install of the new Tainter Gate.

The existing Tainter will be removed along with the trunnion yoke assemblies from the existing trunnion anchorage. It is anticipated that the existing Tainter gate removal and new Tainter gate install will require a 400-500 Ton crane mounted on a navigable floating plant. Monitor the prevailing river conditions at the project site, referring to the upstream project river gage, river forecasts issued by the National Weather Services to determine when to withdraw equipment and floating plant.

The withdrawal of equipment and floating plant shall ultimately be the Contractor's decision and shall not be directed by the Government. Per DFARS 236.204, the magnitude of this construction project is between $10,000,000 and $25,000,000. A Request for Proposals is projected to be released on or about 10 June 2024, with proposals due 30 days after release of RFP. This project will be an unrestricted solicitation.

The estimated duration of the construction phase for the proposed base contract (replacement of 1 of the 3 tainter gates) is 730 days. Max period of performance (proposed options for remaining 2 tainter gate replacement) is 1460 days. This base period and options may change when solicitation is released.