Highways officers are investigating a mile-long stretch of road following seven reported accidents in the last month.
The Examiner has reported how there has been a spate of crashes on the narrow, exposed and winding country lane this winter.
Now council chiefs have stepped in to investigate and will post ‘slippery road’ warnings and extra signs on the bends in a bid to cut the accident toll.
A council spokesman said the road was resurfaced in August 2014 and the surface friction was checked again last year with no faults found.
Detailed investigations have now been ordered and police have said there were several factors contributing to the cause of the crashes they have looked at.
These included high winds, excessive speeds, poor road positioning and mud on the road. Three quarters of the crashes took place in wet weather.
Clr Steve Hall, the council’s Cabinet member for place, said: “There is nothing immediately obvious in the road condition or sight lines that would lead to so many accidents in such a short stretch of road.
“But the recent incidents mean there have now been 18 recorded injury collisions in 18 months. Two people have been seriously injured.
“I understand there have been other damage only incidents, which the police did not attend, so there is no formal record, but walls have been damaged.”
Clr Hall said the road became busier when it was used as an unofficial diversion during motorway roadworks and traffic levels had not reduced even after the roadworks had finished.
The B6118 is narrow where most crashes have happened. It has a 40mph limit and there are two quarries with heavy HGV traffic.
Clr Hall added: “We will investigate further to ensure that we have missed no defects that might lead to these accidents. We will talk with police and local councillors and ensure lighting and signs are appropriate.
“We have already redone tests to evaluate the surface friction and we are working with the quarries to ensure the road is clean and that trucks are using the wheel wash facilities provided on site.
“We are also undertaking automatic speed measurements to allow us to put the full picture together. Nothing is being ruled out, including considering measures which might reduce the attractiveness of this road as an alternative to the motorway.”
In February last year Kirklees Council was forced to shut recently-resurfaced Smithy Place Lane in Brockholes which drivers claimed had turned into a “skid pan.”
There were several accidents and the council investigated and found the road surface had “prematurely worn” inside 18 months. It was re-surfaced in March.