Transportation: funds; funding for sound wall projects; provide for. Amends 1951 PA 51 (MCL 247.651 - 247.675) by adding sec. 14b.

SB 80 creates a state-funded program to help local governments build sound walls and other noise-reducing measures along state trunk line highways. It establishes a "noise abatement measure fund" to provide grants or loans for projects that reduce highway noise, directly affecting residents near these roads and local road authorities managing them. The program requires the state transportation department to evaluate projects using a scoring system focused on cost-effectiveness, the number of homes receiving at least 5 decibels of noise reduction, and existing noise levels. Local road authorities can apply for funding, and the department must annually report application details and decisions to the legislature.