Subject to performance targets being achieved, the contract could be extended annually for up to a maximum overall term of 12 years.
The contract, won by the company's infrastructure services division covers highways, environmental, transport and development professional services and is worth up to £5m annually depending on the extent of support required. Mobilisation starts from next month with Mouchel working alongside the in-house team to provide the service from the start of next April.
David Harrison, Norfolk’s cabinet member for environment, transport, development and waste, said: "Mouchel's proposal was the best of three very strong bids, and follows on from the recent award of the works contract to Lafarge Tarmac. We are confident that Mouchel's wide experience will ensure that Norfolk continues to benefit from highways design and professional services of the highest standard, and we are particularly pleased with their commitment to work with schools, and support for apprenticeships, which is a high priority for the County Council."
Norfolk's highways network includes 9,800km of local road, 4,100km of footways, 50,000 streetlights, 2,000 bridges and other structures, and 375 signal-controlled junctions and crossings.
Mouchel Infrastructure Services managing director David Virden said that the company was delighted to be chosen. "Our in-depth strength was important – we are offering a strong locally-based core team supplemented by a vast range of technical, environmental and project expertise focused on delivering the Council's objectives."