Road Bridge. Retaining walls of embankments of the pond to the west of North Street and its railings

The structure is a road bridge built between 1825 and 1828, which was the first road bridge and embankment constructed across the Carshalton Ponds, replacing a previous wooden footbridge. The bridge is made of stock brick and features one segmental arch with plain abutment piers, along with Portland stone dressings and a keystone. The ironwork consists of intersecting iron railings.

On either side of the road embankment, there are retaining walls made of brick, topped with horizontal cast iron railings that are supported at intervals by cast iron standards with battered sides and ball finials. The wall on the west side of the embankment extends westward along the south side of the Ponds, reaching the "splash" before the Greyhound Public House.

This road bridge, known as Leoni Bridge, along with the culvert and retaining walls to Carshalton Ponds, is part of a group that includes No 1 High Street and the entrance gates to the Grove, Honeywood Museum, the wall and gatehouse at Honeywood Walk, Anne Boleyn's Well, St Mary's, Madeley Cottage in Church Hill, and several items on the south side of the High Street, including the Greyhound Inn, the wall to the east of the Greyhound Inn, the Church of All Saints, the north churchyard wall, and Nos 6 and 12 High Street.