Construction Alert! Beginning March 1, overnight full closures on Interstate 5

From SANDAG, a Mid-Coast Trolley Construction Update: Beginning Sunday, March 1, 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. Closures and lane reductions will be in place on both northbound and southbound lanes. Motorists should plan to take alternate routes to avoid potential congestion. The following closures will be in place:

Beginning Sunday, March 1 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 and 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-5 and I-805 to westbound SR 52

If work proceeds ahead of schedule and the closures of northbound I-5 lanes complete early, closures of southbound I-5 lanes may begin the week of March 1 and additional notice will be provided.

For more information and construction notices, visit

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