Traethbach Bridge and Road Act 1854
WHEREAS the Construction of a Turnpike Road from the present Harlech and Maentwrog Turnpike Road, near a Place called Garth-Penbryn in the Parish of Llandecwyn in the County of Merioneth, to join (at a Place called Adwydddu in the Parish of Llanfihangel-y-traethau in the same County) a certain Road leading from Portmadoc in the County of Caernarvon towards Tanybwlch in the said County of Merioneth, with a Bridge in the Line of the said intended Road over the Estuary called Traethbach, would b...