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Jackson’s Highways Division kicks off £6m flagship COFA project with best practice

Jackson Civil Engineering has been contracted to undertake works on the M25 Junction Improvement Scheme (JIP) as part of Connect Plus’ Call Off Framework Agreement (COFA) with Highways England.

This £6m project is the largest COFA scheme to date and will take 12 months to complete. During construction, Jackson are implementing best practice to minimise disruption to the traveling public, lower CO2 emissions and increase the wellbeing of employees.

The team will be constructing an additional lane on the M25 exit slip road anti-clockwise and widening the A1 southbound entry slip road. Both work on the two slip roads involve piling with the M25 exit slip road requiring directional drilling under the main circulatory.

Jackson is also undertaking works at Bignells Corner (South Mimms Services) to add an additional lane leaving the services along with a new footway and improved signals.

Around South Mimms Services, Jackson will be installing an electronic Live Traffic Information Board and Interactive Information Board to deliver up-to-the-minute information, identify congestion occurrences and display estimated journey times for the public traveling along the M25 and A1.

To reduce levels of air pollutants during construction, Jackson will be using a cleaner burning alternative to diesel, GTL (gas-to-liquid) fuel in plant and machinery. Already in practice on a variety of Jackson sites nationally, GTL fuel can significantly reduce nitrogen oxide (NOx) and particulate matter emissions, creating a healthier working environment for workers and reducing disruption to the local community.

Alongside GTL fuel, the team will also be trailing Hydrotreated Vegetable Oil (HVO) fuel which is a synthetic paraffinic fuel produced by treating vegetable and waste oils and fats with hydrogen. HVO is an innovative renewable red diesel that can generate reduction in air pollution and Greenhouse Gas savings 52- 90%.

Solar panels will also be used to generate power to the site compound as part of Jackson’s Highways Sector new sustainable business case. Already in use at the M11 site office, it is estimated over a year, Jackson would have saved 34.800 litres of diesel and 95,864kg* of CO2 emissions.
*based on Defra Conversion Factors 2019, using Gas oil conversion 2.75821 kg CO2e / litre.

Datascope has also been introduced to the Highways Sector to improve productivity through fatigue management. The fingerprint recognition systems enables staff to securely enter and exit sites, log their travel time as well as working hours. Collectively, this data displays an accurate representation of fatigue management.