A series of temporary overnight closures will be in effect on Interstate 5 (I-5) as crews remove falsework — or temporary support structures — from the Trolley overcrossing south of Nobel Drive. Motorists should plan to take alternate routes to avoid potential congestion. Through Thursday, March 5: • Full closure of northbound I-5 lanes from State Route 52 (SR 52) to La Jolla Village Drive from 9:30 p.m. to 5 a.m. each night; • Lane reductions may be in place on southbound I-5 lanes during this time; • Northbound detour routes will be available via eastbound SR 52 to northbound Interstate 805 (I-805) to I-5. Beginning Sunday, March 8 through Thursday, March 12: • Full closure of southbound I-5 lanes from the I-5/I-805 Interchange to Gilman Drive/La Jolla Colony Drive from 9:30 p.m. to 5 a.m. each night; • Lane reductions may be in place on northbound I-5 lanes during this time; • Southbound detour routes will be available via southbound I-805 to westbound SR 52 to I-5.