Bertolozzi v. Progressive Concrete Co.

On July 26,1946, in the city and county of San Francisco plaintiff sustained personal injuries by walking into a framework of boards placed by defendants around an area of freshly poured concrete on a portion of the sidewalk on Union Street between Mason and Powell Streets. For the injuries then received plaintiff after a jury trial secured judgment against defendants. The mishap occurred in the nighttime and the evidence is in conflict as to whether at the time there was a lighted lantern at that end of the barrier to warn pedestrians of its presence.

Over objection plaintiff introduced an…