The additional money will enable 125 new jobs over the next five years, and the 405km of fencing and planting of 375,000 riparian plants will help target nutrient and E. coli loads in waterways, increase aquatic habitat and decrease stream temperatures and bank erosion.
The other region-wide programme to receive funding is Horizons' remediation of native fish migration barriers. Government's Jobs for Nature funding adds $2.5 million into a $3.2 million programme.
"This investment will allow for the removal of at least 25 barriers, opening up 1250 kilometres of stream habitat for migratory fish. This will increase native fish numbers and distribution, improve aquatic habitat and increase kākahi (freshwater mussel) populations," Keedwell said.
It could also create 15 new jobs.
The third project to receive funding is a wetland complex and other water quality interventions at Lake Horowhenua.
The $11.2 million for that will go towards a five-year, $12.5 million project, targeted at reducing nitrogen concentrations in Lake Horowhenua and the Arawhata Stream.
"The wetland idea has been developed over time by an alliance involving Horizons and Horowhenua District Council, horticulture growers, iwi and environmental groups, with 45 new jobs expected as a result of the project," Keedwell said.