Network Rail teams are set to work right through the night of the 24th of September in order to repair the power lines and return the railway back for passenger services on Sunday morning.
The incident which saw the overhead wires damaged took place on Tuesday evening and has meant that trains cannot run between Stevenage and Hertford North and a reduced service has been put in place at Knebworth with some bus replacements in operation.
The completion of the crucial repair work will see the route's normal services resume once again.
In order for Network Rail to carry out the work in a safe environment, a section of railway on the East Coast Main Line at Stevenage will need to be closed which means that some late night and early morning services will be cancelled.
Passengers are being advised to check their travel plans using National Rail or via their rail operator's website before travelling.
Sarah Reid, East Coast Route Director for Network Rail, said: “We're very sorry for the impact this incident has had on passengers travelling through Stevenage, and I'd like to thank people for their ongoing patience.
“Some lines have reopened following damage to the overhead wires on Tuesday evening, but further repairs are needed before trains can run normally again. Our teams are focused on completing this essential work over the weekend. In the meantime, passengers should check before they travel with National Rail or their train operator's website.”
Overhead electric wires are an essential part of the railway infrastructure and are used to power electric and bi-mode trains. The wires carry 25,000 volts of electricity and are continuously on. To find out more please visit: youvstrain.co.uk
A spokesperson for Hertfordshire Police, said: “At 4.40pm on Tuesday, 20 September officers were called to Broadhall Way in Stevenage following concerns for the welfare of a man who had injured himself whilst on a bridge crossing over a main railway line.
“The man was taken by air ambulance to hospital where he continues to receive medical treatment.”
Jenny Saunders, Customer Services Director for Thameslink and Great Northern, said: “I'm really sorry for the disruption our customers have been facing since this unfortunate incident. We're doing our very best to keep people moving until the wires can be fully fixed.
“There are fewer trains running north from Knebworth and buses instead of trains between Hertford North, Watton-at-Stone and Stevenage. Please visit the Thameslink or Great Northern website for full travel advice. You can also claim Delay Repay compensation here if you're delayed by 15 minutes or more.”
