drainage sluice

With no one to care for the drainage sluices, some fields were already flooded, and the water was over the road in places.

A cruciform bed resembled an autopsy slab with ceramic drainage sluices.

Castro told me how it works: the girls are dropped off at the ballfield, then herded through a drainage sluice under the road into the riverbed.

We flushed out the deck drainage sluices and collected all the gunk that came out for the lab to sift through.

The first buildings of the village were built around the drainage sluice at the Numanspolderdijk (now called Molendijk) and from there the town spread along the Binnenhaven.