J.F. White's diving team was hired by Cashman-Interbeton JV to perform diving operations in connection with the MWRA Ocean Outfall Tunnel. The MWRA Ocean Outfall Tunnel was the final component of the long awaited Boston Harbor Cleanup Project. J.F. White was tasked with preparing the diffuser, connecting the caisson, removing the caisson and subsequently securing the diffuser for service. This diving work occurred at a depth of 120 fsw and was undertaken from both a deck barge and jack-up barge. In addition, our diving teams removed 265 diffuser port caps from 53 seabed diffusers spaced along the last mile of the tunnel.

J.F. White proposed and General Contractor, Kiewit- Atkinson -Kenny (KAK) considered J.F. White's "safe havens proposal" for manned entry into the dewatered subsea tunnel. Manned penetration was proposed in order to remove safety bulkheads sealing each of the vertical riser shafts from the main tunnel. The MWRA insisted upon ventilation of the entire tunnel system. This was achieved by exhausting the contaminated atmosphere through a caisson attached to one of the terminal diffusers. The 90 ton steel caisson extended upward 175 feet from the sea floor to exhaust fans on a jack-up barge.

This project displays J.F. White's ability to propose and perform complicated diving procedures when called upon.