A120 Little Hadham Bypass

Scheme outline

Construction of a new single two-lane road to carry the A120 around the northern edge of the village of Little Hadham. At present the A120 passes through the village and along a length of narrow road that is single file and operates with traffic signals to alternate traffic flows.

The new bypass will connect to the existing A120 with a roundabout at either end, and will have no other connections to other roads.

The scheme also includes significant flood alleviation works. The bypass will cross the River Ash and the opportunity is being taken to use this crossing to manage the flow of water along the river. In the event the river rises above its usual level, flood water will be held north of the bypass, with a managed flow allowed through to the south, preventing it from breaching its banks in Little Hadham and further south. The flood alleviation works will be delivered by the Environment Agency in parallel with the road scheme.

Under construction
Bypass or realignment
for use by all traffic
Highway authority
DfT and Environment Agency


30 March 2019

Contract for the work awarded in January 2019 to John Graham Construction Ltd. Contract due to be signed in April 2019 with work on site commencing in the summer.

Preparatory works have already started with weekend closures of the A120 between Little Hadham and Bishop's Stortford.

31 May 2019

The Bishop's Stortford Independent reports that work is due to begin on site in June.

12 June 2019

Partial funding for the scheme of £27.4 million was approved by the Department of Transport on 25 May.

1 September 2019

Construction is now well under way with the sites for both roundabouts prepared and substantial earthworks in progress along the route.

15 March 2020

The contractor has been making steady progress in spite of the exceptionally wet winter. The first section of permanent road surface was laid in February 2020 from the new Hadham Park roundabout up to Hadham Park underpass.

More information


With thanks to Martin Potts for information on this page.