Summary
The work involves maintenance dredging for the usn of three portions of the authorized, 27 f deep, 500' wide fnp in the lower kennebec river. Dredging is required to meet the navigational requirements of newly constructed surface combatants being built and tested at bath Iron works (BIW). The proposed work consists of dredging approx. 80,000 CY (CY) of clean sand (approx. 30,000 CY of required material and 50,000 CY of overdepth (OD) material). Approx. 61,000 CY of material will be removed from the doubling point area (i.e., just below Bath), and approx. 10,000 CY of material will be removed from the popham beach area (at the river mouth). In addition to the historically dredged sites, this proposed maintenance dredging includes dredging approx. 9,000 CY of material will be removed from bath reach (just below the Carlton Bridge and adjacent to BIW). As part of this proposal, maintenance dredging will be performed to remove the sand-waves in the vicinity of doubling point to an elevation of -32' mllw +2 f overdepth (OD) to improve the chance that adequate depths will endure. The 61,000 CY to be removed from the channel at doubling point includes dredging to an elevation of -32 f mllw +2 f od.