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
Cincinnati and Whitewater Canal Tunnel the portion of U.S. Route 50 that travels over the tunnel. Despite the efforts spent on building the Whitewater Canal, it was abandoned in 1856 after numerous floods had destroyed much of its length. This resulted in the abandonment of the canal tunnel, a period of stagnation that ended in 1863 when a railroad company began a twenty-five-year period of using it as an ordinary rail tunnel. Since the rail line ceased operation in 1888, the canal has become completely unusable, having silted up almost all the way to the ceiling. However, the tunnel has not been completely forgotten; the