GRAHAM has been appointed to deliver stage two of the major Didcot and surrounding area infrastructure scheme (HIF1), which aims to tackle traffic congestion, improve travel times, and enhance connectivity in the region.

The key elements of the project include the design of the Clifton Hampden Bypass and the Didcot to Culham River Crossing.

The scheme is part of a broader effort to address growing traffic issues and support the economic development of the Science Vale area by facilitating smoother transportation links and creating new jobs.


Detailed design work is currently underway, with construction expected to begin in early 2026. The project, which has received strong backing due to its potential to improve local infrastructure, is designed to meet the demands of a rapidly developing region.

Andrew Henry, GRAHAM Contracts Director said: "GRAHAM has been working closely with Oxfordshire County Council and key stakeholders since April 2023 through Early Contractor Involvement (ECI).

"This collaborative approach has enabled us to develop the detailed design for these significant infrastructure projects while actively engaging with third-party stakeholders such as Thames Water and Openreach to coordinate necessary utility diversions”.

"As we deliver this transformative project, we will focus on working closely with the local community to create a lasting impact that benefits everyone."