The Himley Hall bonfire spectacular is the biggest in the region – but a combination of wet weather and heavy usage has taken its toll on the parkland.
The venue is popular with hundreds of walkers and dog owners who have found it difficult this week to negotiate a route through the mud.
Regular user Steve Mullender, from Sedgley, questions whether the event, which includes funfair rides, food stalls and entertainers, is worth the state it leaves the grounds in.
The damage has been largely caused by large lorries, he said.
“The ground over a large area of this beautiful park has been wrecked by clear-up vehicles,” he said.
“It is difficult to find a walkable path at present with sinking ankle deep in churned-up mud.
Alan Lunt, deputy chief executive at Dudley Council, said: “Himley Bonfire and fireworks display is a well organised event where people can enjoy the fireworks and bonfire in a safe and controlled environment rather than having their own displays at home.
“Unfortunately the weather wasn’t on our side this year but that didn’t stop thousands of people turning out to enjoy the annual event.
“There is some remedial work that needs to be carried out and staff within our green care department will be working to restore the grounds as soon as ground conditions allow.”
The 180-acre grounds of the Grade II* listed hall, once the home of the Earls of Dudley, were designed by 18th century landscape architect Capability Brown.