An exit strategy should be a vital part of any proposed irrigation scheme, says Ikaroa-Rawhiti MP Meka Whaitiri.
During a visit to Wairarapa on Wednesday the Labour MP said Wairarapa could learn from the Ruataniwha dam project, and that "off-ramps" were a necessary part of such projects.
Last week a report was made public that put the cost of the Hawke's Bay irrigation scheme at more than $900 million -- $300million higher than previous estimates.
Ms Whaitiri said she supported water storage and regional development but as a Hawke's Bay ratepayer she had been outspoken about holding the council, and its investment company, to account.
"There's been all those lessons that I've seen unfold from the Ruataniwha dam so coming to Wairarapa I'm just like 'oh my gosh, you need off-ramps' so that would be my message to whoever is investing in the dam, you need at some point to be able to say this isn't working, we need to pull out."