LOS ANGELES (CNS) -- The transition ramp from the northbound San Diego (405) Freeway to the westbound Glenn Anderson (105) Freeway will close Tuesday night for reconstruction and remain out of service for four months.The ramp will close at 10 p.m., with the project expected to wrap up by the end of April, Caltrans said.Crews will be demolishing and removing the concrete roadway surface. Caltrans will rebuild the roadway and the embankment and install a new drainage system.The interchange is close to Los Angeles International Airport. As a detour, motorists were advised to exit the northbound 405 at either Imperial Highway or Century Boulevard and turn left to head toward LAX.Motorists traveling from farther south should consider taking the Harbor (110) Freeway north to the 105 as an alternative.Drivers should expect delays.Caltrans officials said they scheduled the project in consultation with LAX officials in hopes of avoiding the airport's most congested periods.The ramp from the northbound 405 to the eastbound 105 has been closed for about 14 weeks for reconstruction, but that transition road will reopen at 5 a.m. Wednesday.