iron, gate, cog, cogs, water, flow, raise, lower, iron metal, wrought iron, chain, chained, padlock, waterway, waterways, footpath, footpaths, foot bridge, weathered, river bank, river banks, plant, corroded, green, sprocket, lock, cylinder, barrier, ordering, assistant, worker, person, fastener, low, subordinate, path, pathway, roller
Sluice Gate Mechanism Controlling Flow Of Water