Papers relating to estate infrastructure at Cefn Cribwr, 1771-1785, including notes on the state of the roads at the forge; plans for two new canals at the forge and at a small colliery nearby; and some notes on stirring canals, improving meadows by mixing canal soils and lime, and on mending a broken dam. The file also contains pages from various booklets on water wheels and troughs; justifications for using one water wheel at Cefn Cribwr; and a printed plan of the canal from Coventry to Oxford, 1771.