which it lies, from the R147 Navan Road, from Chesterfield Avenue and the Castleknock Gate of the Phoenix Park, and via Knockmaroon Hill in Chapelizod. Dublin Bus operate a number of services through Castleknock. These include Route 37 which runs from Blanchardstown Town Centre to Wilton Terrace, Baggot Street, and Route 38 from Burlington Road, in the southern part of Dublin city centre, towards Damastown and vice versa. Irish Rail operate Dublin Suburban Rail on the Western Suburban Railway Line or Maynooth Line from Dublin Connolly to Maynooth. An earlier railway station was designed by John Skipton Mulvaney and completed in 1849 at Castleknock. The landmark was demolished in the late 1980s to make way for the M50 motorway. A new modern Castleknock railway station was built close by and opened on 2 July 1990. The Royal Canal was completed in 1817 to transport freight and passengers from the River Liffey in the City of Dublin to Longford. Having fallen into disuse at the start of the 20th century the canal is now restored and mostly used for pleasure. The canal's 12th lock is located at Castleknock Marina. The Diswellstown Stream rises in two branches in the area. One branch comes from Carpenterstown, where Bracken Park Drive now lies and is culverted for its first stretch. The other comes from south of Park Avenue in Castleknock village and flows in the open along the western edge of the Castleknock College grounds. The branches come together near the area known as the Sand Holes or Sandpits in Diswellstown, and the stream flows directly south to join the Liffey. Education There are three primary schools in the village: Castleknock National School (Church of Ireland), St Brigid's Primary School (Catholic), and Educate Together (non-denominational). Outside the village proper, Scoil Thomáis (co-educational) is located in the Laurel Lodge district, while St Patrick's (co-educational) is in the townland of Diswellstown. A state secondary school, Castleknock Community College (multi-denominational), is located on Carpenterstown Road. A fee-paying secondary school for girls, Mount Sackville, under the care of the Sisters of St. Joseph of Cluny, is located on Tower Road, Knockmaroon Hill, Chapelizod. The suburb is also home to Castleknock College, a voluntary Vincentian secondary school for boys which has produced numerous alumni in the fields of arts, politics, sports, science and business. Religion In the Church of Ireland, the church of St Brigid, sited on the ruins