BILLINGS, Mont. (AP) – The U.S. House approved a water rights settlement with Montana's Blackfeet American Indian tribe on Thursday as part of a broader bill addressing water projects across the nation.

The passage on a 360-61 vote sends the measure back to the Senate.

The bill proposes to rehabilitate the Four Horns Dam and Blackfeet Irrigation Project and make other improvements on the Blackfeet tribe's northwestern Montana reservation.

It has already cleared the Senate once.

Yet the success of the broader bill it's attached to remains uncertain. Democratic Sen. Barbara Boxer of California has vowed to defeat it because of a disagreement on provisions that apply to that state's drought.

The water rights settlement has a $422 million price tag, according to the U.S. Department of Interior. Money for the settlement was authorized but not appropriated in Thursday's bill and will have to be addressed separately.

U.S. Rep. Ryan Zinke said he was hopeful Montana's two U.S. Senators would be able to convince Boxer to support the measure.

Negotiations on the agreement began more than 30 years ago. It was approved by the Montana Legislature in 2009.

Prior attempts failed to advance the settlement through Congress. The administration of President Barack Obama objected to its original price tag of $591 million.