; Public Law 110–114 ); and (2) submit to Congress a report on the results of the study under paragraph (1), including a description of the obstacles that must be removed to implement the program expeditiously. II Ports and harbors 3111. Authorization of appropriations for purchase of hopper dredge (a) In general There is authorized to be appropriated to the Secretary $150,000,000 for the purchase of a hopper dredge. (b) Use of hopper dredge A hopper dredge purchased with funds under subsection (a) shall be used primarily in areas that have been consistently damaged by extreme weather events. 3112. Authorization of appropriations for purchase of mat sinking unit There is authorized to be appropriated to the Secretary $125,000,000 for the purchase of a mat sinking unit. 3113. Hopper dredge and mat sinking unit It is the sense of Congress that, in considering the least cost alternative for purchasing a hopper dredge and mat sinking unit, the Corps of Engineers should consider entering into a lease to purchase. 3114. Sense of Congress relating to Kennebec River Federal navigation channel It is the sense of Congress that periodic maintenance dredging of the Federal navigation channel in the Kennebec River, Maine, should be prioritized, based on a joint plan developed by the Secretary and the Secretary of the Navy. 3115. Sense of Congress relating to Wilmington Harbor dredging It is the sense of Congress that the Secretary should prioritize annual dredging for Wilmington Harbor, Delaware. 3116. Port of Arlington The Secretary shall reimburse the Port of Arlington, Gillam County, Oregon, not more than $3,200,000, for the costs incurred by the Port of Arlington for construction and other expenses for the project described in the matter under the heading Regulatory program under the heading Corps of Engineers—Civil under the heading Department of the Army under the heading of Department of Defense—Civil in title I of division C of the Omnibus Appropriations Act, 2009 ( Public Law 111–8