'Iford Bridge and the Stour'

I paid a visit to the Epsom & Ewell Art Group on Wednesday evening and did this demonstration painting. The Iford Bridge, near Christchurch, Dorset, spans the River Stour and has four arches but, from this angle, I could only see two. I've painted the bridge several times but usually from the other side.
This is known as the 'old bridge'. Built from Purbeck stone, it is now pedestrianised. The new bridge (1932) is about 200 metres upstream, and now takes the traffic.