This bill mandates the New Hampshire Department of Transportation to install and maintain mile markers along Route 112, also known as the Kancamagus Highway, which stretches from Lincoln to Conway. The new legal language inserted into the current law specifies that the mile markers must be installed at one-mile intervals and must be clearly visible and legible to both motorists and emergency personnel. Additionally, the Department is responsible for maintaining these markers to ensure they remain in good condition, with provisions for replacement or repair as necessary.

The bill is set to take effect on July 1, 2025, and does not provide specific funding for the project. However, it is estimated that the total cost for the installation and maintenance of the mile markers will be approximately $287,600, which will be funded through federal highway funds. The implementation process is expected to begin after the effective date, with design and construction phases anticipated to occur primarily in the 2026 construction season. The bill's passage may displace other programmed sign improvement projects due to the constraints of the federal funding program.