Buffalo Bayou National Heritage Area Act - Establishes the Buffalo Bayou National Heritage Area in Texas. Designates the Buffalo Bayou National Heritage Area Corporation as the management entity for the Heritage Area. Requires the Corporation to submit a management plan for the Heritage Area.
Requires the federal cost share of any activity carried out using assistance under this Act to be half of that activity's cost.
Sets forth requirements for the approval or disapproval of the management plan by the Secretary of the Interior.
Specifies this Act's effect on private property protections and water rights with regard to the Heritage Area. Bars anything in this Act from being meant as modifying the Rio Grande Natural Area Act.