The red areas show the current extent of excavation for SNOLAB.  Excavation for Phase I of SNOLAB has reached the Rectangular Hall.  The Ladder Labs are fully excavated and are undergoing the final installation of rock and cable bolts to secure the ground prior to application of the shotcrete liner.

The red areas show the extent of  the excavation for SNOLAB.  The Phase I excavation is nearing completion with the Rectangular Hall being the one large remaining cavity to complete.   Work is now beginning on the preparation of the excavations to accept the new experiments.

Laboratory Entrance

	The laboratory entrance is the transition from the dirty mine areas to the clean room laboratory.  It includes a rail yard for unloading shipments brought underground on a narrow gauge railway, a "carwash" to clean equipment and a personnel area including change rooms and showers for personnel.
	Access drift from the new lab entrance to the existing SNO facility.  This area has been shotcreted in preparation for adding it to the clean interior space of the laboratory.
	The future location of the shower room for the laboratory entrance.  The men's showers will be on the lower level with the women's showers on a mezzanine level above.
	The Double Track Area at the laboratory entrance.  This area is having the tracks reset in a concrete floor.  It will be the "front porch"  of the laboratory.

Ladder Labs

	The Ladder Labs are a network of drifts (mining terminology for tunnels) intended to house several medium scale (several meter sized) experiments.
	The larger rail (north side) of the Ladder Labs looking east.  This area is able to house a medium scale (4-5m size) experiment.  The shotcrete finish has been applied to the back (roof) of the excavation.
	The Ladder Labs looking west towards the rectangular hall access drift.  The shotcrete wall finish can been seen.  The yellow tubes are ventilation ducts used during excavation and the application of the shotcrete.

Rectangular Hall

	The Rectangular Hall is a large hall located north of entry to the laboratory intended to house a large scale (10 m sized) experiment.  In addition to the experimental hall there is a staging area, control room and utility room to support activities in the hall.
	The Rectangular Hall.  The top bench has been excavated and the "back" of the hall has had ground support installed and the shotcrete surface finish applied.   The first of four benches below grade has been blasted and is being "mucked out".  The yellow plates are lifting points to suspend equipment from the back of the hall.
	Looking back towards the entrance to the Rectangular Hall.  The area immediately outside the hall will be a staging area for assemblying equipment to be lowered into the hall by a monorail (covered in blasting mats in the upper right corner of the picture).
	The Rectangular Hall Utility Drift will be used to house the ancillary equipment for experiments in the Hall.

Cryopit (Phase II)

The excavation of SNOLAB is structured in two phases.  Phase I which is presently under construction is the creation of the Rectangular Hall, Ladder Labs and the new personnel facilities.  Phase II would add a second large experimental cavern called the Cryopit intended for large scale cryogenic experiments.  Phase II is not presently funded.

Utility Area

	The Utility Area contains the chiller system to cool the laboratory and the emergency diesel generator.  It is located old mine workings outside the clean room space of the laboratory.
	The "Chiller Drift" will contain a 320 Ton chiller system to cool the laboratory.  The white bags are "shotcrete" the spray on concrete used to cover the excavation walls.

Existing SNO Facility

The SNO experiment continues to operate without significant disruption during the excavation of the new SNOLAB facilities.  SNO is scheduled to end data taking at the end of 2006 and will be decomissioned during 2007.

Surface Facility

	The SNOLAB Surface Facility.  A 34,000 sq ft facility to provide support for experiments underground as well as office and meeting room space.
	The surface facility is equiped with several class 1000 clean room laboratories for prototyping and staging for experiments being deployed underground.
	Many of the radiological assays for ultra low background experiments require chemistry to enhance the detection of radioactive trace elements.  A clean room chemistry laboratory in the surface facility provides support for the experiments.
	A Low background counting laboratory is used to measure minute quantities of radioactivity assayed from the SNO experiment.
	The surface facility has several meeting rooms including a 100 seat auditorium.