The 100m section will complete the shared pathway link along London St to the bottom of St John's Hill (Great North Road).
It will also join with the top end of Te Tuaiwi shared pathway that begins at Whanganui City Bridge and continues through the central city to London St.
Shared pathways are routes designated for shared use by people who are cycling, scootering, skating or walking.
This construction, overseen by Whanganui Alliance (a collaboration between Whanganui District Council and Downer NZ) includes a 100m-long, 2.5m high concrete retaining wall opposite the Z Energy service station between Fergusson St and the Whanganui SPCA site.