Museum of Power

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The Museum of Power is located in the former Southend Waterworks (now Essex & Suffolk Water) Langford Pumping Station in Langford, Essex, England.[1] It is located on the B1019, on the main road from Maldon to Hatfield Peverel.

The museum operates the Langford & Ulting miniature railway, which offers passenger rides around the museum, as well as Astaria, the only model village in Essex. The museum hosts major events such as the Olde Tyme Rally, American Car Show and Bikemeet which see a large array of visiting vintage cars, motorbikes and American and custom vehicles on display. It is also the home of Essex's major steampunk event, which takes place every September.


Langford Pumping Station was built by T and C Hawksley in 1924, and opened in 1927. It continued pumping fresh (treated) water using steam engines until 1963, when electric pumps took over. It is designed to extract water from the Rivers Chelmer, Ter and Blackwater. The three inflows merge in a small settling reservoir, where sediment is naturally deposited, and then pumped for treatment, and again to a storage reservoir.[1] Two of the three engines and the boilers and coaling plant were scrapped in 1963, and the octagonal chimney was demolished.

One engine 'Marshall' and pump set has been preserved and thanks to efforts from the museum's volunteers were brought back to steam in 2011. The museum runs 10 steam days annually, which are part of the many events (examples listed above). The engine, built by the Lilleshall Company of Oakengates in Shropshire, is a triple-expansion steam engine built in 1931 and numbered 282. Museum research shows that 'Marshall' is the last triple-expansion engine to be built by the Lilleshall Company and is the only one of its kind in the UK still in its original location, with its original pump sets. When operating on steam, 'Marshall' could be unique worldwide, but this cannot be proved.[1]

The pump house buildings and the remaining engine were declared Scheduled Ancient Monuments in 1986 and also received engineering heritage listed status from the Institution of Mechanical Engineers in 2012 as a result of the return to steam.[2]


Steam Pumping Station
Hatfield Road
Langford, Maldon
Essex, CM9 6QA

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Coordinates: 51°45′03″N 0°39′18″E / 51.7509°N 0.6549°E / 51.7509; 0.6549