Engineering specialist, Alun Griffiths, has won a £70 million contract that will see it to deliver road, highways and redevelopment works in Portsmouth city centre as part of a new flexible agreement.

Future works will also include highways construction and public realm improvements and public transport infrastructure.

The contract will start in mid September and will run for four years with a possible extension of to up to eight years.

The company will be appointed on the basis of a framework agreement, which will allow for incremental call-off of design and construction works. This new ‘flexible’ arrangement changed from an original plan to appoint a design and build contractor during procurement.

As a result of the Department for Environment, Food and Rural Affairs issuing an air quality enforcement notice on the city, the redevelopment of the city centre and surrounding area road, highways and associated infrastructure is under review.