In July of 2015, Ferreira Construction was awarded a contract with Con Edison at the Ravenswood Utility Tunnel. The tunnel was built in 1895 and is cut through bedrock without a concrete liner to minimize the water and salt infiltration. The tunnel is also very narrow and crowded with other facilities, making for di cult maintenance and repair activities. It is for this reason that many at Con Edison deem it to be the most intricate and daunting gas main project in Con Edison’s history. Ferreira’s scope of work included placement of 1,700 linear feet of 8” steel gas main in this tunnel which span under the East River from Queens to Manhattan. This installation will help establish a back-feed of gas to the Con Edison Head House on 74th St. In addition, new risers were placed vertically from the tunnel base to Roosevelt Island to provide a volume and pressure upgrade for the residents of that community. This project was completed by Ferreira under budget and within the project schedule.