Rest the camera on the bridge

I'm a bit late posting today, and as you can see from the picture it is very grey and overcast, lots of rain and surface water around, this is the river at Turlough. I was in Castlebar this morning and passed Turlough on the way home , I had no tripod with me and this was a 15second exposure, so I had to rest the camera on the bridge and use the self timer to take the picture.