The 91 westbound Main Street off-ramp in Corona will close for approximately 10 months, starting May 15 at 9 pm.
During the ramp closure, crews will rebuild the off-ramp, construct a retaining wall and widen the 91 roadway in this area. The closure is required to ensure the safety of construction crews.
The westbound off-ramp closure is the second phase of the "Main Street Squeeze" work that began in January with the 15-month closure of the eastbound on-ramp and lane reductions on northbound and southbound Main Street.
Motorists should use Lincoln Avenue as the detour. Alternate routes include McKinley Avenue on the 91 and Hidden Valley Parkway on Interstate 15. See detour map here.
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