The Senate is poised to vote this week on legislation that its supporters see as critical in the wake of flooding in Louisiana and a lead water crisis in Michigan.

The $9 billion Water Resources Development Act of 2016 is on the Senate floor this week after flying through committee in April. The bill funds 25 Army Corps of Engineers projects worth $4.5 billion that lawmakers have already authorized, and would spend $4.8 billion on water infrastructure updates throughout the country.