MELBA, Idaho -

Idaho Power is working to improve water quality and habitat in parts of the Snake River upstream from dams in Hells Canyon.

The Idaho Press-Tribune reports that the utility recently wrapped up a project to deepen a stretch of river and plant more than 18,000 trees near Walter's Ferry and other efforts in different parts of the river are expected.

Idaho Power spokesman Brad Bowlin says the Walter's Ferry project and others are part of the utility's commitment to improving water quality in the river system. They also are required in order to receive a federal license to operate dams in the Hells Canyon Complex.

Idaho Power operates three dams in the complex, which accounts for about 70 percent of the utility's hydroelectric power generation.