Driving west through Corona this weekend could be a nightmare.

In a rescheduling of the closure canceled last weekend, all westbound lanes of the 91 Freeway are set to shut from McKinley Street to Main Street — all weekend long — for a construction project, a Riverside County Transportation Commission news release states. Last week’s planned work was canceled because of the heavy Santa Ana winds.

Scheduled to begin at 9 p.m. Friday, Jan. 28, and end at 5 a.m. Monday, Jan. 31, the closure will allow crews to safely put up support structures to guide construction of a new $270 million ramp connecting toll lanes on the 91 and 15 freeways, the release states. The westbound 91 Express Lanes in Riverside County and westbound 91 off-ramp at McKinley also are scheduled to close.

The closure was originally planned for Friday, Jan. 21, through Monday, Jan. 24.

Related links

Weekend westbound 91 Freeway closure canceled in Corona due to high winds
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Westbound 91 Freeway in Corona to shut all weekend at 15 Freeway
Construction starts on 91-15 freeways toll-lane connector in Corona
New 91 Freeway lane opens between Corona, Anaheim Hills

Drivers are urged to avoid the area by taking the 60 Freeway or other routes. Detours are set up, though long delays should be expected, officials said.

The detours involve:

Heading north on the 15, exiting at Hidden Valley Parkway, turning south onto the 15, then heading west on the 91.
Heading south on the 15, exiting at Magnolia Avenue, turning north onto the 15, then heading west on the 91.
Exiting the 91 at McKinley Street, traveling west on Magnolia Avenue, driving north onto the 15, then heading west on the 91.