Security fencing will be erected around a bridge on Myothill Road in Denny by BEAR Scotland to prevent groups from accessing the M80 via an underpass.
The danger spot was the scene of a fatality in 2011 when a young man tried to make his way down from the underpass and fell through a gap.
Denny resident Gordon Jack was part of a group which called for action to be taken last year after youngsters were spotted scrambling up to the area on numerous occasions.
Images showed youths sitting on the edge of the flyover, with their legs dangling in the air from several metres above Castlerankine Road.
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Mr Jack, 64, is happy to hear his concerns have been acknowledged, with BEAR confirming its work will start on Monday.
The retiree, who lives near the underpass, claims children are still gathering at the site despite police warnings.
He said: “I’m obviously very keen to see it done.
“Even during the cold spells it was astonishing as there kids were still going up.
“I was out walking the dog shivering and you could hear and see the telltale signs of voices and phones shining on their faces, so this needs to happen.
“I received an email telling me it was going to happen in January and nothing has happened as yet.
“I was pleased to receive the email. That was a positive.
“When nothing happened, I didn’t know if it was because of lockdown.
“It’s okay fixing one or two bits of fencing. The proof of the pudding will be actually seeing what happens.”
Motorists have been advised to expect delays on Castlerankine Road as the work will require the installation of temporary traffic lights.
Traffic restrictions will be in place from 8am until 5pm each day from Monday, February 22 until Friday, February 26.
The work is weather dependent and may be postponed in the event of adverse conditions.
BEAR Scotland has said it “will endeavour to keep all stakeholders updated if any changes occur”.