Utility tunnels run throughout the grounds, providing underground conduits
for the various buildings. In some instances, the tunnel tops are also
walkways. Steam, hot water, and other building utilities are delivered
through the tunnels which provide access to the pipes for maintenance.
The tunnels experience degradation over time and have to undergo repairs
for wear and tear and also to increase strength for truck access.
The tunnels in this project are located along Emmett Street and across the Lawn
and can support sidewalks and even vehicles, including fire trucks for
access to buildings on the Lawn.
Tunnel roof removal, replacement
and wall strengthening was also required as part of the project.