It is the only lock on the Thames that is not operated by the Environment Agency.
The weir gates weigh 32 tons each and are raised or lowered to adjust water levels depending on the state of the tide.
The site was commissioned following a private Act of Parliament in 1890 to protect the rowing and pleasure craft interests in the Richmond reach.
The footbridge was originally a toll bridge, and a small toll house remains on the Richmond side.
The structure is a Grade II* listed building, recognizing its Victorian engineering significance.
Richmond Lock and Footbridge is the final lock and the only tidal weir on the River Thames, completed in 1894 to maintain navigable water levels between Richmond and Teddington. The structure consists of a pedestrian footbridge, a lock, three massive steel sluice gates, and a half-tide weir. When the gates are lowered, they hold back the tide to ensure the river remains deep enough for boats; when raised, they allow vessels to pass beneath. It is managed by the Port of London Authority. The site serves as a vital transition point for river traffic and a scenic crossing for pedestrians connecting Richmond and St Margarets.
The center of the footbridge facing upstream for a symmetrical view of the weir gates and river.
Walk across the footbridge for a clear view of the lock mechanism and the river activity.
Check the tide tables beforehand; the view changes significantly between high and low tide.
Use the path along the riverbank to connect the lock to Richmond Bridge for a longer scenic walk.
Attempting to walk through the lock chambers or restricted maintenance areas.
The lock is operational for vessel passage 24/7, though pedestrian access is unrestricted.
Be mindful of cyclists using the footbridge, as it is a popular commuter route.