Closeup of waterway corridor leading underneath a bridge over river IJssel in the background with heavy machinery dredging ship in the foreground at work

boat bridge civil engineering clean commerce construction crane digger dirt dock dredge dredging dutch editorial engineering environment equipment excavate excavator excess floodplains freight ijssel industrial industry machine machinery mud netherlands outdoors river riverbed sand sediment ship shipping technology transportation vessel water water management waterway zutphen new amsterdam level steady fixed frame claw grabbing siphoning