Lying in the shadow of Drumin Castle, and close to the confluence of the Livet and Avon, Drumin Bridge is a twin span concrete deck structure, suggesting an early post-war date. The central pier sits in the middle of the shallow river, with the abutments shrouded in bushes on either bank. A bridge has crossed the river here for over a century, but there is no evidence for an earlier structure on the nearby river banks, suggesting that the current bridge sits on the same spot.
When the B9136 was first classified, it crossed the River Livet here in preference to the Bridge of Livet a little further upstream, despite this necessitating a near-hairpin bend at the top of the hill in Drumin. The route seems to have been re-routed when the current Bridge of Livet was built.