Tai Poutini Natural Hazard Reports
A Natural Hazards page containing information on Coastal, River Flooding, Tsunami, Landslide and Earthquake hazard has recently been developed. For information on the hazards please click here. For technical reports, see links below. If you require further information, please contact naturalhazards@wcrc.govt.nz.
Coastal - Regional | Tai Poutini
Mapping for priority coastal hazard areas Inundation update using LiDAR (NIWA 2023)
Mapping for priority coastal hazard areas in the West Coast Region (NIWA 2022)
Review of West Coast Region Coastal Hazard Areas (NIWA 2022)
A geomorphological characterisation of the coastal environment West Coast (GNS 2021)
Geomorphological assessment of the effects of river gravel extraction (Clement and Fuller 2020)
Assessing the effects of river gravel extraction on coastal erosion (NIWA 2017)
Coastal - Greymouth | Māwhera
Greymouth Coastal Hydrodynamic Modelling (WCRC 2023)
Coastal Change at Cobden Beach, Greymouth (NIWA 2020)
Coastal changes and future coastal management at Punakaiki (NIWA 2020)
Cobden Coastal Inundation Modelling (LRS 2020)
Rapahoe Coastal Erosion (NIWA 2017)
Managing and adapting to coastal erosion at Cobden Beach (NIWA 2017)
Coastal - Buller | Kawatiri
Environmental impacts from accumulation of sediment Orowaiti Estuary (Fuller 2025)
Mōkihinui Township flood mitigation advice (NIWA 2023)
Coastal changes and future coastal management at Punakaiki (NIWA 2020)
Influence of structures on erosion north bank of the Mōkihinui River mouth (NIWA 2019)
Managing and adapting to coastal erosion at Carters Beach (NIWA 2017)
Managing and adapting to coastal erosion at Granity Ngākawau and Hector (NIWA 2016)
Managing and adapting to coastal erosion Ngākawau and Hector (NIWA 2007)
Managing and adapting to coastal erosion Granity (NIWA 2006)
River Flooding - Regional | Tai Poutini
Hydro Event Report October (WCRC 2025)
Flood Event Report November (WCRC 2024)
Flood Event Report October (WCRC 2024)
Report on West Coast Weather Event Ex Tropical Cyclone Ita (WCRC 2014)
Report on West Coast Weather Event (WCRC 2010)
West Coast River Flood History (Benn 1990)
A Chronology of Flooding on the West Coast 1846 - 1990 (Benn 1990)
River Flooding - Westland
Hokitika River: Flood Modelling. 2D Model Upgrade (LRS: Babu and Gardner, 2025).
Wanganui River Flood Modelling Report (LRS 2024).
Hokitika River Hydraulic Modelling and Flood Hazard Mapping (LRS 2020).
Waitangi-taona River Scheme (WCB 1980)
River Flooding - Waiho
Waiho River GCD Analysis to March 2026 (LRS report to WCRC April 2026)
Waiho River GCD Analysis to March 2025 (LRS report to WCRC July 2025)
Waiho River GCD Analysis to July 2024 (LRS report to WCRC September 2024)
Waiho River GCD Analysis to January 2024 (LRS report to WCRC March 2024)
Waiho Avulsion October 2025 update (LRS memo to WCRC November 2025)
Waiho Avulsion March 2025 update (LRS memo to WCRC March 2025)
Waiho Avulsion July 2024 update (LRS memo to WCRC August 2024)
Waiho River morphological Modelling. Stage 1 assessment of Tatare Avulsion (NIWA 2025)
Waiho 2D Hydraulic Model Upgrade Report (LRS report to WCRC October 2024)
Waiho River 2D Hydraulic Modelling Report (LRS 2016)
Waiho River Historic and Future Management Strategies. LRS (2023)
