Jo Ingram is on the mend after falling while pony trekking - deemed an "extreme sport".
Access to the scheduled monument between Thringstone and Belton runs over an ageing culvert.
There are events across South Kesteven over the next few weeks as part of the inaugural programme.
Jo and Stuart Ingram are stuck in Thailand because they were uninsured for an ill-fated pony ride.
The Grade I listed Belton House, near Grantham, features in a number of well known TV dramas.
The volunteers are helping migrating toads to cross a road during breeding season.
Belton volunteers help hundreds of toads cross the road during breeding season.
Two people have been arrested following the collision, which took place on the A161 near Belton.
North Lincolnshire Council says many of the potholes will be patched up due to the winter weather.
