SAN DIEGO–Friday’s full closure on southbound State Route 125 (SR-125) to the South Bay Expressway at State Route 54 has been postponed because of construction-related issues. The closure has been rescheduled to Tuesday 11:30 p.m. to 4:30 a.m. and is required to replace overhead signs. Detour signs will be placed directing motorists on southbound SR-125 to travel onto westbound State Route 54 (SR-54) to Briarwood Road. Turn right onto Briarwood Road then turn left onto the eastbound SR-54 on-ramp to access southbound SR-125 and the SR-125 South Bay Expressway. The work is part of a county-wide project to install self-reflective signs that use headlights from highway vehicles to illuminate the sign. The new signs will enhance nighttime visibility and will replace signs requiring light fixtures to light up the signs. Caltrans engineers estimate that the new signs will reduce electrical use by seven percent. The work schedule is subject to change due to traffic incidents, weather, availability of equipment and/or materials, and/or construction-related issues.