Abstract
The CMS detector is described. The status of the construction is reviewed. The Civil engineering work at point 5 is progressing well although some delays have been accumulated due to the bad geological conditions. The underground caverns will be ready in July 2004. The Magnet construction is well advanced and on schedule with a test of the magnet on the surface in July 2004. Mass production has started for all sub-detector parts: Silicon tracker, crystal calorimeter, hadron calorimeter and muon chambers. The TRIDAS architecture has recently evolved with a new design of the large 512 × 512 switch. The software and computing project is reviewed. Priority is given to High-Level Trigger studies. Finally the cost and schedule of CMS is discussed. A low luminosity detector can be ready in August 2006. The low luminosity detector is the complete CMS detector, except the 4th endcap muon station and the 3rd forward pixel layer.
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