Cooling Pond

The Cooling Pond, built in 1866 and attributed to architect George Devey, features a concrete-lined pool with brick wall coping and steel railings. It has an elongated 'tear-drop' shape and is located approximately 12.18 meters northwest of the engine house it served. The pond is enclosed by a low brick wall that supports looped steel bar railings, which are held up by braced cast-iron posts set in brick piers. Access to the pond is provided by gates at the southwestern and northeastern ends on the southern side, leading down to the water via two flights of steps with tubular hand railings. The pond measures 42.64 meters in length and 12.57 meters in width, with a depth of 1.30 meters and a wall height of 1.90 meters from the base. Water enters the pond through a 10 cm pipe at the southwestern end and is drawn out for the boilers via a 10 cm pipe through a circular filter bed located at the pond's widest point. Hot water from the boilers is returned to the pond for cooling through a 7.5 cm ejector pipe. Two overflow pipes at the northeastern end help maintain the water level.