2 Verbs to Use for the Word manholes

Nowhere have these drains been carried through the houses, but they are taken directly into drains at the back, having specially ventilated manholes and being brought through at the ends of terraces into the road sewers; the ventilating openings in the roads have been converted into inlet ventilators by placing upcast shafts at short intervals, discharging above the houses.

Mr. Sam Bossom, having poled back to the towpath, stepped ashore, made fast his bow moorings, stood and watched the two childish figures as they passed up the last slope of the garden out of sight, and proceeded to deliver his remaining hundredweights of coalfirst, however, peering down the manhole and listening, to assure himself that all was quiet below.

2 Verbs to Use for the Word  manholes