Thames Tributary Cripsey Brook, - Thornwood
The Cripsey Brook is a tributary to the Roding. It rises in this area in two branches and flows eastwards to the Roding.
TL 47 06
post to the north - 47 07 -Randells
Post to the east Delved Bridge - North Weald
This section of the motorway is slightly to the south of junction 7. The section from Junction 4 to 7 was built by Dowsett Engineering Construction Ltd of Harrogate, Yorkshire in 1977. Unsurfaced concrete was used to just south of this stretch