The construction of the Second Severn Crossing Bridge provides necessary added capacity to serve the M4 highway. 66,000 vehicles use the two crossing bridges each day. Tolls were collected from over 20 million vehicles crossing the two Severn River bridges last year (2005). This additional capacity is especially critical now that the original Severn Crossing Bridge appears to need major rehabilitation work on its aging suspension cables. Due to the high volume of traffic using both of these crossings, it is vital that caring for their upkeep is assigned the utmost importance.