The southbound Interstate 5 ramps at Exit 120 (Green District/South Roseburg) will be closed for one week starting as early as 7 p.m. on Sunday, April 30, due to construction. A detour will be in place. During the temporary closures, southbound I-5 motorists may use the on- and off-ramp at Exit 119 (Winston/Coos Bay). The closures will allow prime contractor Knife River Materials to pave and widen the ramps as part of a $4.5 million project that will make several interchange improvements. The northbound off-ramp at Exit 120 will remain open during this construction stage.