Dismantling of manhole including R.C.C. top slab, C.I. cover with frame, including stacking of useful materials near the site and disposal of unserviceable materials within 50 m lead as per direction of Engineer-in-charge:
19.24.4Circular manhole 122 cm diameter and 1.68 m deep
Matches DSR 2023Vol 2, pages 1818 to 1819