At 2240 hrs Sanatoga and Ringing Hill were dispatched to Sunnybrook Rd and E High St for an odor of gas after a bridge collapse. AC58 arrived to find the north wall of the bridge had collapsed with a odor of gas. SD58 arrived and used a gas meter to check the area with readings AC58 requested PECO. PennDOT was also requested to check the integrity of the bridge. Crews were on scene for appx 2.5 hours before being released.