A road in Sleaford will be closed for a month so that toads trying to cross it don't get hit by cars.
Last year around 40 pairs of breeding toads are said to have been killed while trying to cross White Cross Lane after coming out of hibernation in early March.
Volunteers are also being sought to help carry the toads from one side of the road to the other in buckets of water.
Common toads are believed to be declining across the UK because of habitat loss according to amphibian and reptile conservation group Froglife.
According to the charity research showed the chances of a toad being killed while crossing a road were as high as 67 per cent.