16 May 2016 Last updated at 08:42 BST
Merafield Bridge in Plympton was detonated overnight on Saturday, as part of a Â£6.4m project to replace the structure.
The bridge, built in 1969, was damaged by alkali silica reaction, more commonly known as "concrete cancer".
Video: Highways England
Footage has been released showing the demolition of a bridge over the A38 in Devon.