on the original canal route at Combe Hay have been buried; one by a railway embankment, and three overfilled by with building waste since the 1960s. It may no longer be feasible to reinstate the original locks 16, 17, 18 and 19 structures for this section. At Upper Midford the canal is blocked entirely at the accommodation bridge by the high embankment of the railway that crosses it. Most of the canal features along the entire route are on private land but the towpath survives in places as a right of way, while the later railway between Midford to Wellow has been surfaced to form part of National Cycle Route 24. It has been proposed that a statue, commissioned by Sustrans, of William Smith, the father of English Geology, will be sited next to the path on the line of the canal commemorating his work as its surveyor and his recognition of the significance of rock strata. Restoration works Limpley Stoke The stretch at Brassknocker Basin where the canal joins the Kennet and Avon at Dundas Aqueduct was restored during the 1980s and is now a thriving marina with moorings. Excavations of the old stop lock (at the junction with the Kennet and Avon Canal) showed that this had originally been a broad () lock that at some point was narrowed to by moving the lock wall. Paulton and Timsbury basins Work started in 2013 to reveal and excavate the drydock next to the eastern Paulton Basin. This drydock appears to be the largest drydock anywhere on the canal system in England, being about wide and long, large enough for three full-length narrowboats to be worked on at the same time. The drainage culvert at the southeast corner of the drydock was rebuilt in December 2013, and the drydock itself completely excavated in April 2014. The entrance to the drydock, at the western end, was surmounted by a bridge, partially demolished in 2002 but rebuilt during 2014. Withy Mills Excavations began in May 2014 at Terminus Bridge; the abutments were found to be in poor condition; an earth bund between the abutments carried the public footpath and stopped the water draining from the Paulton and Timsbury Basins. A new earth bund was installed about west of Terminus Bridge to stop the water and allow work to continue on the bridge. During excavations a drainage culvert was discovered about west of