Er mwyn llwyddo yn hyn o beth, bydd angen cau'r ffordd dros nifer benwythnosau yn 2018, yr un fath ag eleni, er mwyn gwneud gwaith pwysig yng Nghwm Clydach.Rhagwelir y bydd y prosiect ar hyn o bryd 23% dros y gyllideb a gymeradwywyd.
To achieve this will require a number of weekend closures in 2018, as has been the case this year in order to complete critical activities within the Clydach Gorge.The scheme is currently projected to be delivered 23% over the approved budget.