Traffic was stopped on the M48, the older of the two Severn crossings between England and Wales.
Teacher Seb Leer is one of those who can live a little more comfortably now the changes have come into effect.
Charges for crossing the two bridges will be scrapped from Monday.
Protesters brought three lanes of traffic to a standstill on the Severn Bridge today in an attempt to highlight the plight of Iraqi Kurds.
Around ten cars, some flying the flag of Kurdistan, closed off the westbound stretch of the bridge linking south Wales with South West England.
Police attended the protest to ensure the safety of motorists.