||Pearl Hall Construction Update
Concrete work installing key-ways (in-ground supports for vertical wall) has been completed, and concrete has been poured for foundations and erect forms for basement walls.
The metal reinforcing rods visible now will give support and strength to what will become the concrete basement walls. With good weather, some basement walls should be constructed very soon.
The geo-thermal drillers have had a series of breakdowns, but a second drill rig has been brought in to keep them on schedule; workers will continue to work six-day workweeks. The geo-thermal wells can be identified by a series of two black hoses protruding from the ground where the driveway was along the east side of Yerkes Hall. These lines are scheduled to be connected to a manifold inside a vault and covered over with gravel to make a temporary access road prior to freshman move-in day on August 23.
The drilling for the elevator hydraulic piston is just beginning. This 15-inch-diameter hole is critical for the operation of the elevator and for the continuing efforts to erect basement walls; it cannot be completed later in the project, when basement walls would prohibit access.
The main plumbing sewer line has been installed and is connected to an existing sanitary line; it is located in the main site-access road and must be completed to allow traffic in and out of the site.
To see a selection of recent photos of Pearl Hall site preparation, click the following link: http://www.centre.edu/pearlhall/photos/excavation/excavation.html