Falling concrete closes lanes of Richmond-San Rafael Bridge. Again. By Alix Martichoux, SFGATE Updated 2:37 pm PDT, Friday, April 5, 2019

Photo: Caltrans The right lane and shoulder were blocked on the Richmond-San Rafael bridge Friday afternoon due to emergency roadwork.

The California Highway Patrol issued a Sig-alert Friday afternoon after concrete once again fell from the upper deck of the Richmond-San Rafael Bridge onto the lanes below.

The right lane and shoulder in the eastbound direction were closed as of 2:04 p.m. Crews were on scene performing emergency roadwork in the area.

CHP advised motorists should expect major delays and use alternate routes if possible. No estimated time of reopening was given.