The Haywards–Plimmerton Line was a railway development proposed several times between 1879 and the 1960s to connect the Hutt Valley and Porirua areas of Wellington via Haywards.
No 1 line surveyed by Wink and Hales which went from Upper Hutt to Waikanae via Akatarawa required two tunnels, a bridge over the Hutt River, a horseshoe curve to Bluff Creek Valley (now Reikorangi), and reached a height of 1560 feet above sea level, higher even than the Wairarapa Line.
[1][2][3] The proposed No 3 line followed the Western Hutt Road, left the Wellington-Masterton Railway 12 miles 55 chains from Wellington (approximately 1.2 km south of the present day SH 2/SH 58 intersection), and climbed Haywards Hill to the saddle.
[1] "The Haywards route .... was quickly dropped, although it is still on the map today (1972) as a possible connecting link between the suburban districts of Porirua and the Hutt Valley to serve the new urban developments now taking place".
But by 1978 NZR decided that the project was not expected to proceed, and some land in Acheron Rd, Paremata was transferred to the Porirua City Council, which was already using it for a children’s park.