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It is believed that, Charles Grimes, Surveyor General of New South Whales, was the first European settler to explore the Yarra river.
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In 1835, Melbourne was eventually settled and the land was subdivided and the first public land sales were held shortly after.
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John Dight purchased the Melbourne block 88, which included 26 acres of land along the Yarra river for £481 at the Port Phillip land sales held in Sydney.
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In 1840, John Dight was already in business of flour milling. In April, he notified his customers through The Sydney Herald that he was leaving to Port Phillip.
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In 1841, the first steam powered flour mill was constructed in Melbourne. John then built his water powered mill from bricks bought over from Tasmania.
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The Dight family abandoned flour milling in 1864
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The Dight family sold their property (Edwin Trennery) in 1878. Trennery subsequently subdivided the land.
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This enterprise, was sold in 1891 to the Melbourne Flour Milling Company.
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The existing weir at Dights Falls dates back to 1895 when a timber structure was built to provide water for the Melbourne Flour Milling Company.
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The mill changed hands for a final time in 1909 before it was destroyed by a fire. The ruins of the mill, can still be found at Dight Falls today.
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The first documented reconstruction activity occurred in 1918 when part of the timber weir washed away in flood waters. The Minister for public Works at the time declared that the weir would be rebuilt, although the extent of these works is not known.
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A breach of the weir on the 24th of December 1940 prompted another rebuild and the distribution of 1.5 tonnes of rock from the edge of the weir downstream.
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A further breach of the weir occurred after heavy rainfall in 1967. Most of the timber decking, walings and rock fill had washed away or were irreparably damaged during this flood.
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The following year, the original timber piles were caped by concrete, replacing the timber deck and resulting in the weir structure that we see today.
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In 1993 Melbourne Water, recognising the the weir was a barrier to fish migration constructed a rock fishway to allow fish to move around the weir. Whilst considered best practise at the time, the rock fishway was only partially effective and the Dight Falls Weir continues to act as a major barrier to native fish migration in the Yarra River.