Heads up, drivers.

If your weekend activities will take you through Corona, you’ll want to plan around late-night closures at the busy confluence of the 15 and 91 freeways.

For three nights in a row, the northbound 15 Freeway ramp that drops cars onto both the eastbound and westbound 91 is poised to close, with a single lane opening during the day, according to the Riverside County Transportation Commission.

The closure results from the continuing construction of toll lanes on the 15 Freeway, between Cajalco Road in Corona and the 60 Freeway on the boundary of Eastvale and Jurupa Valley, in a $472 million project expected to wrap up later this year.

The northbound 15 connector to eastbound and westbound 91 is scheduled to close on Friday, Jan. 10, from 10 p.m. to 6 a.m.; on Saturday, Jan. 11, from 11 p.m. to 7 a.m.; and on Sunday, Jan. 12, from 10 p.m. to 4 a.m. Commission Deputy Executive Director John Standiford said that, on weekend days, the connector will be open — but with only one lane available to drivers.

But wait. There’s more.

Watch out for related closures nearby.

Also planned to be closed — all weekend — is the northbound Magnolia Avenue on-ramp at the 15 Freeway, from 10 p.m. Friday until 4 a.m. Monday, Jan. 13, he said.