People living near the route face disruption for many more years due to delays and rising costs.
Connor Naismith wants the government to set out plans for improving capacity north of Birmingham.
Reform UK's deputy leader Richard Tice says the high-speed railway line plans are "insanity".
Companies say high-speed links would boost passenger numbers and free up capacity for rail freight.
"There's a fundamental problem in the UK with the cost of building anything," says one insider. Then there are questions about the planning system
The russet-coloured structure should reduce flood risk, says HS2 Ltd.
Transport Secretary Heidi Alexander said the HS2 project was an "appalling mess".
The US currently has no high-speed rail services, but two are under construction, and more planned.
A scheme to control flows of naturally occurring springs on part of the line is blocked by planners.
