BLIGHTED Broadway is in tatters again after a security van ran over new paving.
Hyndburn Council officers are investigating the incident to discover which firm was responsible for breaking the flagstones, which were installed at the taxpayers' expense.
The stretch has been hit by a series of setbacks since the council came under pressure to revamp the area last year.
Shoppers and residents complained paving was uneven, prompting a major £500,000 overhaul of the walkway, which began in mid-July.
That project was due to finish by Monday but a further delay is likely after the latest blunder.
Work could even go on until the busy Christmas shopping period begins.
If no company or individual is found liable for damaging the flagstones, the cost could be passed on to the taxpayer
A Hyndburn Council spokeswoman refused to say how much the damage would cost to repair.
One source, who asked not to be named, said it was in the region of £30,000, though the council spokeswoman said it was nowhere near that figure.
She added: "A vehicle has done a small amount of damage on Broadway and we are taking the matter up with the company involved."
Hyndburn Council leader, Councillor Peter Britcliffe, said: "I am appalled that this has happened.
"These security firms have the privilege of being able to go where the general public can't so they need to treat that privilege with responsibility.
"I am concerned that the taxpayer might end up paying for this unless the culprit coughs up."
He added: "Despite the setbacks, the contractor J and R Morgan has been extremely good and the inconvenience to shoppers has been kept to a minimum during the busy works.
"Hopefully, this won't cause too much of a delay and Broadway will look good this Christmas."