Environmental Studies

Environmental Scan and Agency Coordination
As part of this project, a study was conducted to identify natural and built environmental resources to guide concept development
and evaluation. The locations of these resources will be carefully documented through environmental analysis (National Environmental Policy Act).

To support this effort, the project team is collaborating with the McCall Airport, Federal Aviation Administration, and other agencies on these environmental considerations.

Hazardous Materials
This project looks to add protections for Payette Lake - McCall’s sole source of drinking water and a primary tourist attraction - against the transport of hazardous materials by rerouting those trucks away from the downtown corridor and lakefront.

This is especially important because increased mining in the southwest corner of Valley County is estimated to increase the number of loads rolling past the lake by 52-66 trips per day starting in 2028, with each load potentially containing hazardous materials.

Potential Corridor Exchange

One potential solution of this project includes exchanging the classification and ownership of SH-55 and Deinhard/Boydstun.

Several entities would need to approve the potential corridor exchange, including the Idaho Transportation Board, the City of McCall, and the Federal Highway Administration.

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