River Thames Thames Estuary), the river is subject to tidal activity from the North Sea. Before the lock was installed, the river was tidal as far as Staines, about upstream. London, capital of Roman Britain, was established on two hills, now known as Cornhill and Ludgate Hill. These provided a firm base for a trading centre at the lowest possible point on the Thames. A river crossing was built at the site of London Bridge. London Bridge is now used as the basis for published tide tables giving the times of high tide. High tide reaches Putney about 30 minutes later than
Mardyke (river) Valley Golf Club, an 18-hole (par 70) course set in the grounds of Ford Place and opened in 2002. In 2010, Andrew Mackinlay MP opened a new bridge over the Mardyke at Purfleet. This bridge – named the Veolia Mardyke Bridge – links Purfleet to the Rainham Marshes Nature Reserve. Mardyke (river) The Mardyke (sometimes, but less frequently, Mar Dyke, occasionally Mardike) is a small river, mainly in Thurrock, that flows into the River Thames at Purfleet, close to the Queen Elizabeth II Bridge. In part, it forms the boundary between the Essex hundreds of Barstable and Chafford. The river