More are expected shortly.
Companies sponsor one-mile segments of the roadway.
In return, a sign bearing their logo is erected on the freeway to recognize the contribution. Beginning in February, their workers will pick up trash twice a week on all 108 miles of I-15 in Southern Nevada. Until last year, a combination of volunteers, youth offenders and Transportation Department employees cleaned the roadway. When a crash claimed the lives of six teens who were picking up garbage along I-15, pickup by youth offenders and volunteer groups was stopped, and the trash began to pile up. A trial begins today for Jessica Williams, the woman charged in that crash.