Boris Johnson slammed for claiming cut-price HS2 plan will deliver for Manchester and the North

Boris Johnson has been slammed after claiming the Government's cut-price rail plan will deliver for the North.

The downgraded Northern Powerhouse Rail plan, adopted by Grant Shapps last year, cut the requested investment by roughly half and replaced much of the new track originally requested with upgrades to existing routes.

Instead of a 40-mile new high speed line all the way from Manchester to Leeds for example, a new line is proposed from Warrington to Marsden in Yorkshire, where it will be tacked onto an upgraded.

Read more: Plans for HS2 on the cheap threaten to turn swathes of Manchester into a building site

Yet despite this, the Prime Minister claimed this afternoon that he was "gonna build Northern Powerhouse Rail". His comment will likely inflame tempers in Manchester, where just days ago experts warned the current HS2 proposals for the city could seriously jeopardise the whole NPR project.

Plans for a surface station, rather than an underground through-hub, means NPR could not be brought back to life in the future as the hub will hit full capacity from day one.

Analysis by the council shows the surface station will rob the region's economy of £333m a year by 2050, compared to an underground hub. The Government has dismissed the underground option on the basis that it will cost, according to High Speed rail director general Clive Maxwell, £5bn more. Yet no evidence of this costing has been provided.

Mr Johnson, speaking at PMQs, said: "This is a Government that loves the railways, that invests in the railways, £96 billion we're putting into the integrated railway plan and we're gonna build Northern Powerhouse Rail."

Northern Powerhouse Partnership director Henri Murison said: "NPR only as far as Marsden