floodgate, head gate, penstock, sluicegate, sluice valve, water gate

millrace, headrace, forebay, oxbow, revetment, creek, watercourse, river, reservior, streambed, millpond, weir, culvert, soakaway, riverbank, coulee, penobscot river, dam, gabions, roadbed, flowage, silt, penstock, outfall, flume, trestle bridge, fishway, tidal basin, riverbed, canal, bulkhead, gabion, nullah, esker, waterwheel, brook, tarmacadam, tollhouse, lake, pond, slipway, lochan, nala, manway, subbase, spillway, lagoon, canalization, elbe river, icehouses, riprap, undercliff, bailey bridge, groyne, feitsui, cofferdam, springhouse, berming, rockwork, clarifiers, distributary, hummock, retaining wall, caissons, drains, causeway, inlet, posthole, batture, mudflat, diking, tailrace, susquehanna river, merrimack river, marsh, tributary, sediment, culm, drainage ditch, bridge, bascule, glacial boulder, embayment, crossbeams, waterpower, murrumbidgee river, braes, slough, zambezi river, breakwater, drainage, moraine, welland canal, gasometer, bankside, underdrain, tallapoosa river, seawall, tarn, bighorn river, outwash, roadway, passageway, runways, wharf, bridges, channel, chute, chutes, corridors, ditch, ford, fore, frame, ledge, passageways, pier, piers, planks

conduit

sluice