  We present the manual for the program BRIDGE: Branching Ratio Inquiry/Decay
Generated Events. The program is designed to operate with arbitrary models
defined within matrix element generators, so that one can simulate events with
small final-state multiplicities, decay them with BRIDGE, and then pass them to
showering and hadronization programs. BRI can automatically calculate widths of
two and three body decays. DGE can decay unstable particles in any Les Houches
formatted event file. DGE is useful for the generation of event files with long
decay chains, replacing large matrix elements by small matrix elements followed
by sequences of decays. BRIDGE is currently designed to work with the
MadGraph/MadEvent programs for implementing and simulating new physics models.
In particular, it can operate with the MadGraph implementation of the MSSM. In
this manual we describe how to use BRIDGE, and present a number of sample
results to demonstrate its accuracy.
