The Forward Detector upgrade project at CDF is designed to
enhance the capabilities for studies of diffractive physics at the Tevatron
during Run II. Studies of hard diffraction and very forward physics are
some of the topics that can be addressed in the next few years at the
Tevatron. The program for diffractive physics, including the detectors and
their commissioning, is discussed here. All the detectors have been
installed and are presently collecting data.