The Icknield Port Loop is a 0.6-mile (1 km) loop of the eighteenth-century-built Old BCN Main Line canal in Birmingham, England, about 2 miles (3 km) west of the city centre, which opened to traffic on 6 November 1769 and in some definitions includes its straighter bypass built in September 1827, a 550-yard (500 m) section of the New BCN Main Line. Most of the 56 acres (23 ha) of land thereby enclosed is derelict meaning the canal serves the Canal & River Trust maintenance depot at Icknield Port and conveys water from Edgbaston Reservoir to the BCN Main Line. The enclosed land has no pedestrian or vehicular access. Icknield Port (Loop) takes its name from the Roman Icknield Street which passed nearby, the exact route of which is unknown.