WALTHAM, MA - On the afternoon of November 5th, a Waltham Police officer was doing a detail at 880 Winter Street when a partial wall collapsed, injuring a construction worker. He immediately requested an ambulance. Medic 1 was dispatched, however, upon further evaluation, the officer requested the fire department to respond. Engine 2 and Rescue 1 were dispatched. Rescue 1 arrived and reported that a construction worker was on the ground complaining of back pain. Engine 2 was released upon arrival. The construction worker was transported to Lahey Hospital Burlington with non-life-threatening injuries.