Grand Junction Canal Nene at Northampton, to the turnpike road at Old Stratford (north-west of the modern Milton Keynes), and to Watford in Hertfordshire: those to Daventry and Watford were not built. The branch to Old Stratford was amended before it was built (see below). The branch to Northampton was delayed as the plans of the Leicestershire and Northamptonshire Union Canal to reach Northampton and thus join with the Grand Junction came to nothing. The link to Northampton was made by a tramroad transferred from Blisworth Tunnel, with the 5-mile (8-kilometre) canal from Gayton being opened in 1815. The link to Leicester was
Netherton Tunnel Branch Canal Tividale Aqueduct. The northern mouth of the tunnel is near Dudley Road West, close to Tipton's border with Oldbury. An air-vent stands in the middle of Aston Road; another stands between two houses in Regent Road, both in the Tividale Hall estate near Dudley. The southern mouth of the tunnel is in Warrens Hall Park on the border of Dudley and Rowley Regis - the Bumble Hole and Cobb's Engine House are nearby. The Bumble Hole is a landscaped man made lake on the site of a former clay pit. The Dudley No. 2 Canal and the Boshboil Canal Arm