An archaeological dig has provided an insight into the advanced water system that served Roman Colchester.

The Colchester Archaeological Trust is examining land off the High Street as part of the £30million redevelopment of the Williams & Griffin department store.

Archaeologists have found iron collars and fossilised wood, which are believed to have formed part of the town’s Roman water mains.

Philip Crummy, trust director, said: "Colchester was quite technological for a Roman town and was able to provide pressurised water."

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