 And it was Friday morning that firefighters set up a raft and pulley system stretching ropes across the river to access the hot spots and take care of those flames. A second unrelated fire also broke out near Rogner Park just before 10 a.m. yesterday. A person who works for the Parks Department was cleaning up fireworks debris and came upon the smoldering grass, which covered an area of about 50 feet by 20 feet.