Richmond Lock and Footbridge

Richmond Lock and Footbridge is a lock, rising and falling low-tide barrage integrating controlled sluices and pair of pedestrian bridges on the River Thames in southwest London, England, and is a Grade II* listed structure. It is the furthest downstream of the forty-five Thames locks and the only one owned and operated by the Port of London Authority. It was opened in 1894 and is north-west of the centre of Richmond in a semi-urban part of southwest London. Downstream are Syon Park and Kew Gardens on opposite banks. It connects the promenade at Richmond with the neighbouring district of St. Margarets on the west bank during the day and is closed at night to pedestrians – after 19:30 GMT or after 21:30 when BST is in use. At high tide the sluice gates are raised and partly hidden behind metal arches forming twin footbridges. It was built to maintain the lowest-lying head of water of the forty-five navigable reaches of the Thames above the rest of the Tideway. Below the structure for a few miles, at low tide, the navigable channel is narrow and restricts access for vessels with the greatest draft. The next major point of mooring below the lock is, accordingly, at Brentford Dock.