The investment was additional to the previously allocated $600m Safe Roads and Roadsides Programme, scheduled to be spent over six years, also on rural state highways.
Three main projects were in the pipeline in Hawke's Bay, the first due to start construction in January/February next year.
On SH2 between Pakipaki and Waipukurau, $17m had been set aside to widen road shoulders, install rumble strips, median barriers and side barriers, as well as realignment and passing improvements.
In its September 2017 update the New Zealand Transport Authority said 13 people died and 62 were seriously injured on this road between 2006 and 2015.
"Most of these crashes happened when drivers lost control and drove off the road or crossed the centreline and hit an oncoming vehicle."
Between 7000 and 10,000 vehicles travelled the 38km stretch of highway each day.
Also due to begin construction midway through summer next year are similar improvements on SH2 between Wairoa and Bay View.
In the 10 years to 2015, 21 people died and 56 were seriously injured on this stretch of road, and about 2000 vehicles travelled the entire 104km route each day, with up to 9000 using the Bay View end.
Work on this road, estimated to cost about $7m, also involved widening the sealed shoulder, installing rumble strips and roadside barriers and creating a wide centreline in some areas to keep traffic apart.
The final $8.5m project was the SH50 Hawke's Bay Expressway, which would receive similar improvements.
Design work was under way, due to be finalised early next year, with construction set to start in autumn.
Ms Genter said on top of the short-term investment, the Government would further increase funding for road safety improvements as the overall transport budget was revised.
"The Government will hold a road safety summit early next year so that we can hear directly from councils about the barriers to and opportunities for improving road safety," she said.