The photo of the works from June 1909 plus a colourised version. Note the barge with its crane which looks to have large blocks perhaps as counterweights next to the steam boiler. The dock surface is covered with contamination. Could this be coal-dust and/or cement. I'm really not too sure about the large flat board on the slipway since at first I considered it could be a hatchway cover from a ship, but could it have been used to convey the concrete blocks for the wall which weighed several tons each, from the upper level where they the concrete perhaps was mixed and the blocks set in a mould. The slipway certainly looks substantial enough for the duty. [030] [060]

The plant installed within the pump house is described in an article in the book Cardiff - An Illustrated Handbook [247] published in 1896. "For the purpose of maintaining the water in dock to any required height, two centrifugal pumps have been erected; the pumps are 6 feet in diameter, and are worked by two single cylinder horizontal steam engines 20 inches in diameter and 22 inches stroke. Steam is supplied by four locomotive boilers working at 100 lbs. pressure. These pumps are equal to pumping 2,000,000 gallons of water per hour into the dock."

Another photograph from Mr. Hutton's book, A Taff Vale Miscellany with the legend, 'A faded photograph taken c.1910 of the surveyors contracted to supervise the erection of the new pontoon buildings at the TVR Company's Penarth Dock.' [030] [060]

I suspect that there was indeed a great deal of surveying to do at the site. The dock wall required slots for the pontoon steelwork. The inclined dock wall required the new concrete wall to be sited in the correct location with the outlet culverts correctly located. The building of the engineering works offices and shops required surveying. I bet that kept them busy for a while.