Repairs to W.D. Mayo Lock and Dam 14, and Newt Graham Lock and Dam 18 -

The scope of the project includes repairs to the in-channel training dikes damaged in the 2019 flood events with 30" riprap. This includes a total of four (4) in-channel dikes, with three (3) of them being in W.D. Mayo Lock and Dam 14 and one (1) of them being in Newt Graham Lock and Dam 18. The repair to the right bank downstream of W.D. Mayo Lock and Dam 14 is broken down into four (4) options and includes re-building of slope and armoring of the slope with 24" riprap. The following is a breakdown of the project: Base Bid: 0001: W.D. Mayo Lock and Dam 14 Repair of 3 in-channel training dikes damaged during the 2019 flood events with 30" riprap. 0002: Newt Graham Lock and Dam 18 Repair of the in-channel training dike damaged in the 2019 flood events with 30" riprap. Options: Option One (1): Slope repair downstream of W.D. Mayo Lock and Dam 14 from Sta. 977+00 to Sta. 997+00. Repair of slopes on the right bank downstream of the lock and dam damaged during the 2019 flood events Option Two (2): Slope repair downstream of W.D. Mayo Lock and Dam 14 from Sta. 997+00 to Sta. 1009+00. Repair of slopes on the right bank downstream of the lock and dam damaged during the 2019 flood events. Option Three (3): Slope repair downstream of W.D. Mayo Lock and Dam 14 from Sta. 1009+00 to Sta. 1024+39. Repair of slopes on the right bank downstream of the lock and dam damaged during the 2019 flood events. Option Four (4) - Slope repair downstream of W.D. Mayo Lock and Dam 14 from Sta. 965+75 to Sta. 977+00.

Dam/Tunnel, Renovation.

Division 02 -	Existing Conditions, Subsurface Investigation.
Division 31 -	Earthwork, Site Clearing, Grading, Excavation and Fill, Subgrade Preparation, Excavation, Shoring, Tunneling and Mining, Tunnel Excavation.
Division 35 -	Waterway and Marine Construction, Dam Construction and Equipment.