Illinois and Michigan Canal National Heritage Corridor Act Amendments of 2005 - Amends the Illinois and Michigan Canal National Heritage Corridor Act of 1984 to designate, upon the termination of the Illinois and Michigan Canal National Heritage Corridor Commission, the Canal Corridor Association to be the management entity for the Illinois and Michigan Canal National Heritage Corridor.
Requires the Association to develop and submit a proposed management plan for the Corridor to the Secretary of the Interior for approval.
Authorizes the Secretary to provide technical and financial assistance to the Association for the development and implementation of the management plan.