From left, Ben Wallace and Nick Wheeler with RCS Construction Inc. of Wood River keep wet towels wrapped around the neck to help cool body temperatures as crews work in dangerous temperatures Monday on the pedestrian bridge in Alton. At right, Parker Mayhew, 3, of Alton, splashes about in the fountain at the new amphitheater in Riverfront Park and beats the 100-degree temperatures that are putting an excessive heat warning in effect until 7 p.m. Wednesday by the National Weather Service Parker and his cousin Aden Mayhew enjoyed the day with their grandmother Judy Mayhew of Alton.The Telegraph/MARGiS M BARNES