Last Night at 11:40 pm, Mattydale Fire was dispatched for a three-car MVC with one smoking on Northbound 81 on the bridge over Mattydale. Car-3, Squad-4, and Engine-2 responded. While responding, Onondaga County Fire Control reported police were on scene confirming one car on fire. Squad-4 arrived as the first fire unit and immediately deployed the bumper line, and began extinguishing the flames. Ambulances from NAVAC and AMR were already on the scene treating victims. Engine-2 arrived began handling hazards from the other vehicles involved. Once the fire was extinguished, the crew from Squad-4 assisted with any other hazards. Once able, engine-2 and squad 4 redirected to Brewerton road underneath the bridge. Due to the amount of gas on the road draining off the highway onto the ground below, a trench was built by the crews to try and minimize the amount of gas going into the creek/ natural water below. The DEC was notified as a precaution. All units were returned to service an hour of dispatch.