To authorize the Secretary of the Interior to grant to States and local governments easements and rights-of-way over Federal land within Gateway National Recreation Area for construction, operation, and maintenance of projects for control and prevention of flooding and shoreline erosion.

Bill 115 hr 6666, also known as the Gateway National Recreation Area Boundary Modification Act, is a piece of legislation that authorizes the Secretary of the Interior to grant easements and rights-of-way to States and local governments over Federal land within the Gateway National Recreation Area. These easements and rights-of-way would be used for the construction, operation, and maintenance of projects aimed at controlling and preventing flooding and shoreline erosion.

The purpose of this bill is to provide States and local governments with the necessary access to Federal land in order to implement projects that will help mitigate the impacts of flooding and erosion in the Gateway National Recreation Area. By granting these easements and rights-of-way, the bill aims to facilitate collaboration between Federal, State, and local authorities in addressing these pressing environmental issues.

Overall, Bill 115 hr 6666 seeks to promote effective and efficient management of the Gateway National Recreation Area by allowing for the construction of projects that will enhance flood control and shoreline protection efforts. This legislation underscores the importance of cooperation and coordination among different levels of government in addressing environmental challenges and protecting natural resources.