Dam Rehabilitation and Repair Act of 2009 - Amends the National Dam Safety Program Act to require the Federal Emergency Management Agency (FEMA) to establish a program to provide grant assistance to states for use in rehabilitating publicly-owned dams that fail to meet minimum safety standards and pose an unacceptable risk to the public (deficient dams).
Sets forth provisions regarding procedures for grant awards and fund allocation. Requires FEMA to develop a risk-based priority system for identifying deficient dams for which such grants may be made. Limits the federal share of rehabilitation costs to 65%.
Prohibits funds from being used to: (1) rehabilitate a federal dam; (2) perform routine operation or maintenance; (3) modify a dam to produce hydroelectric power; (4) increase water supply storage capacity; or (5) make any other modification that does not also improve safety.
Conditions the receipt of grants by states upon compliance with specified requirements regarding contracts for architectural and engineering services. Provides that such contracts shall not be considered to confer a proprietary interest upon the United States.