The closure of Telford’s Princess Royal Hospital every night from 8pm to 8am would see ambulances diverted to Shrewsbury, Wolverhampton or Stoke – up to 50 miles away.
It comes after the Care Quality Commission took urgent enforcement action when an inspection of Princess Royal Hospital highlighted safety fears.
The trust was already under investigation over allegations of avoidable deaths and injuries in its maternity unit.
They are short of 10 consultants and 21 middle-grade doctors short.
There are also concerns over the number of nurses.
A spokesman said they had no choice but to act due to shortages affecting their two A&Es –Telford and Royal Shrewsbury Hospital.
Chief executive Simon Wright said: “We are doing it for patient safety. We haven’t arrived at this position lightly.”
But Telford Conservative MP Lucy Allan said she would fight the “dangerous” proposal, adding the trust were “negligent to agree to this”.
Fellow Tory Mark Pritchard, MP for The Wrekin, called on councillors to help stop the “deeply flawed” decision.
He said: “If it is merely about recruitment, then why haven’t they got recruitment better, why haven’t they got it right?
“With a rising demand for A&E services, this is a reckless decision.”