What to KnowThe closure will take place from Interstate 8 to the Mission Bay Drive onramp from Friday at 9 p.m. to Monday at 5 a.m.Alternate routes include taking State Route 163, State Route 15, and Interstate 805 past I-8 to then connect to northbound I-5.Caltrans said travelers on SR-163 will be detoured to the westbound or eastbound I-8.

Northbound Interstate 5 will be closed this entire weekend in Mission Bay as Caltrans crews conduct roadwork and concrete slab replacement.

The closure will take place from Interstate 8 to the Mission Bay Drive onramp from Friday at 9 p.m. to Monday at 5 a.m., Caltrans said.

Detours:

All northbound motorists on I-5 are advised to take alternate routes if planning to visit the area.

Alternate routes include taking State Route 163, State Route 15, and Interstate 805 past I-8, to then connect to northbound I-5.

Caltrans said travelers on SR-163 will be detoured to the westbound or eastbound I-8.

Onramp closures:

The Moore Street onramp to northbound I-5 in Old Town will be closed to limit the amount of traffic detoured to I-8. The westbound I-8 Taylor Street onramp and Morena Boulevard offramp will also be closed to allow clear access to the southbound I-5 connector, Caltrans said.

Onramps to Camino Del Rio West in the Sport Arena area and Sea World Drive/Tecolote Road and Clairemont Drive will also be closed.

The northbound I-5 onramp from Mission Bay Drive will be the next open onramp.

Transit:

All northbound MTS bus routes to La Jolla will be running as usual. Bus route 30 will take a slight detour from Old Town La Jolla.

This is the third of several freeway closures for the I-5 Asset Management Project. The project will rehabilitate pavement along the main roadway, shoulders and freeway ramps to extend its service life. Beyond resurfacing, the project will encompass various upgrades designed to enhance performance, safety and environmental conservation, according to the state agency.

The total cost of the planned improvements is $113,745,800, funded by the state Highway Operation Protection Program, with $102,618,300 in federal funds and $11,127,500 in state funds.

The project is part of $1.6 billion worth of work in San Diego County and a segment of a $623 million investment to improve safety and infrastructure on I-5, I-805 and SR-78, according to Caltrans.