Richmond Lock
Richmond Lock is the name of a barrage and footbridge on the River Thames in London . It is the most downstream barrage on the Thames, still in the area of the tidal influence of the North Sea , and the only one operated by the Port of London Authority . The pedestrian bridge connects the districts of Richmond upon Thames and St. Margaret's, both in the London Borough of Richmond upon Thames . Until 1938, a toll had to be paid to use the pedestrian bridge .
The facility, which was opened in 1894, serves to maintain a water level that is sufficient for navigability in the retention of the headwater, which extends to Teddington Lock . It consists of three weir fields , each 20.12 meters (66 feet ) wide, a lock and a boat drag . The tidal situation creates a special operational situation. The 3.66 meter (12 foot) high gates are fully pulled for around two hours before and after high tide, this is the actual purpose of the bridge construction. The shipping traffic then passes through the weir fields. The lock must be used at other times. The maximum height of fall will then be 3.05 meters (10 feet). The lock permits the passage of ships with a maximum length of 76.2 meters (250 feet) and 8.13 meters (26 feet 8 inches ) wide.
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upriver Twickenham Bridge |
River crossings of the Thames |
downstream Kew Bridge |
Coordinates: 51 ° 27 ′ 44 ″ N , 0 ° 19 ′ 2 ″ W.