Mulgrave Battery
By 1818, the new battery had been completed on a location in Battery Point uphill of what is now Castray Esplanade, and was dubbed Mulgrave Battery in honour of Henry Phipps, 1st Earl of Mulgrave, who was at that time Master-General of the Ordnance. The Battery had six guns which projected forward through earthwork embrasures. At first, these were ships guns, but in 1824 they were replaced with 32 pounders. Now Hobart Town had two firing positions protecting either side of the entrance to Sullivans Cove.
Upon its completion, the Mulgrave Battery soon attracted heavy criticism from those who had to serve there. Members of the Royal Artillery felt it was inadequate, and one critic is even said to have described the Battery as "a poor pitiful mud fort."
Engineers reported that the gun carriages were a danger to men firing the guns, and so new timber was sent from Macquarie Harbour in 1829 to make them safer; however, records showed that only one gun had been upgraded by 1831. The same year, the galleries were improved with large 15 metre long sections of timber, heavy bolts, braces and bars.
As the colony began to grow larger, more British Units were sent to serve in the settlement of Hobart Town. Amongst one of these contingents was a commander of the Royal Engineers named Major Roger Kellsall. When he arrived, he assessed these two fortifications, and wrote in his report that he felt the colony was virtually undefended.
He devised an ambitious plan to fortify the whole inner harbour of the Derwent River with a network of heavily armed and fortified batteries located at Macquarie Point, Battery Point and Bellerive Bluff on the eastern shore. He envisaged the forts all having an interlocking firing arc, which would cover the entire approach to Sullivans Cove, making it impossible for ships to enter the docks or attack the town unchallenged.
The scale of the plan was enormous for such a small colony, the population being approximately 20,000 in the 1830s. The small population meant the cost was too prohibitive, considering that at that period the British Empire enjoyed relative peace with the exception of border conflicts in India.
Despite funding problems, work using convict labour did begin in 1840. Mulgrave Battery was enhanced and expanded, and a new site was located slightly further up the hillside on Battery Point, behind the location of the Mulgrave Battery, where construction also commenced in 1840. A semaphore station, built in 1829, and signal mast were constructed above Mulgrave Battery, allowing communication with ships entering the mouth of the river, and through a relay system of masts, all the way to Port Arthur penitentiary on the Tasman Peninsula.
The modern Hobart suburb of Battery Point takes its name from the Mulgrave Battery. The original guardhouse, built in 1818 which had been located nearby is the oldest building in Battery Point, and one of the oldest buildings still standing in Tasmania.
Read more about this topic: Hobart Coastal Defences