MARQUETTE — With persistent snowbanks and late season snowstorms complicating plans, the schedule for the annual Michigan Department of Transportation Adopt-A-Highway program has been changed. The ongoing pickup in the southern half of the Lower Peninsula will be extended through Sunday, according to an MDOT press release.

The first Adopt-A-Highway pickup for the northern Lower Peninsula and Upper Peninsula will be later, from May 5 to 13.

Volunteers pick up litter three times each year. Statewide, there will be a summer pickup from July 14 to 22 and a fall pickup from Sept. 22 to 30.

AAH groups wear high-visibility, yellow-green safety vests required by federal regulations when working within a highway right-of-way. MDOT provides free vests and trash bags, and arranges to haul away the trash.

Sections of highway are still available for adoption. Groups are asked to adopt a section for at least two years. Adopt-A-Highway signs bearing a group’s name are posted along the stretch of adopted highway. There is no fee to participate.

For more information, go to www.michigan.gov/adoptahighway.