Bourne-based Delaine Buses says the collapse of Wrightbus will mean it will take longer for them to find replacement suppliers of new buses.
The 50.1 hectare sand and gravel quarry is proposed for Manor Farm off King Street, near Greatford.
There was a blast from the past around Bourne and surrounding area on Saturday (September 28) for the Delaine Heritage Trust bus running day.
There are long queues down towards the A47 junction at Wansford and Sibson.
Two accidents on either side of the A1 carriageway are causing delays.
A developer plans services and hotel on the site.
The first Bourne CiCLE Festival took place on Saturday and Sunday with thousands of people lining the streets and roads.
A woman was seriously injured in the accident.
Lincolnshire Police said the woman had been taken to the Queen's Medical Centre in Nottingham with 'serious injuries'.
Four-car crash has closed the A1.
