The closure is expected to be just for the day, with it fully open to traffic on Tuesday, officials said. Crews need to close the intersection to thru-traffic to finish the final construction activities at the location, officials said.
The construction is part of the 11.5-mile Metro Gold Line Foothill Extension light rail project.
"Following this one-day closure, the grade crossing work at California Ave will be complete, and both streets will fully re-open to thru-traffic in all directions," Foothill Extension Authority officials wrote in a construction notice.
The closure will be from 7 a.m. to 5 p.m., weather permitting. Detour routes will be provided with signage posted for motorists.
Visit www.foothillextension.org for more information.