The Brief Safety upgrades are underway at crosswalks near St. Pete High School following a May crash that critically injured a student. City crews are doubling warning lights and adding taller, fluorescent signs along Ninth Avenue North. St. Petersburg officials are upgrading crosswalks near St. Pete High School after a student was hit by a car and critically injured in May. Now, city crews are installing safety upgrades to crosswalks on Ninth Avenue North at 25th Street North and 26th Street North behind the school. Additional work includes widening sidewalk ramps at the intersections and repairing broken sidewalks along Ninth Avenue North.