|Location Map ( geo)|
|Distance:||12.7 miles (20.4 km)|
|Meets:||A26, B2157, B2101, A267, B2099, B2169, B2162|
|Route outline (key)|
The B2100 is a medium-length B-road across the Weald.
It starts at traffic lights on the A26 in Crowborough and heads east along the High Street into Poundfield, where it is joined by the B2157. The road then reaches Jarvis Brook and Crowborough Station on the London - Uckfield Railway Line. Rotherfield is then reached, where the B2100 has to TOTSO left where it meets the B2101. A mile further on is Town Row and a bridge under the dismantled Cuckoo Line.
Mark Cross is reached shortly afterwards, where the A267 is crossed via a staggered junction. A short bypass has been built here and the B2100 has taken over a section of the pre-bypass A267; we need to TOTSO right to turn off that road back onto the eastward B2100.
The B2100 then goes through Beggars Bush, and eventually reaches Wadhurst. Originally it ended here but was extended further in the early 1920s. It forms a short multiplex south along the B2099 to pass through the western side of town.