A TWO-YEAR, £21million programme of repairs and improvements to Sevenoaks Tunnel in Kent is almost complete.
The 150-year-old tunnel is one of the longest in southern England and has long been a source of delays because of its poor condition and flooding, caused by inadequate drainage.
However, Network Rail has installed new drainage systems since 2017, and replaced several thousand sleepers and several miles of track to improve conditions in the tunnel.
Engineers have also partially lined 13 ventilation shafts, some of which are more than 120m deep, to prevent water below the Sevenoaks Weald flooding tracks deep below.
Completion of the main works over the Christmas and New Year period has allowed NR to eliminate a long-standing speed restriction and raise line speeds from 50mph to 90mph, cutting journey times through the tunnel by more than a minute.
Read more in the February 2019 issue of The RM – on sale now!
Railway ReadsFrom the history of steam through to 21st century rail transport news, we have titles that cater for all rail enthusiasts. Covering diesels, modelling, steam and modern railways, check out our range of magazines and fantastic subscription offers.
Get The Railway Hub Weekly Round-upEnter your e-mail address below and you will receive weekly rail news straight into your inbox...
You can unsubscribe at any time.
About the Author
- UK railway news roundup - 30th July 2021
- ‘Hidden’ Lake District railway station restored to feature Murder On The Orient Express set cafe - 29th July 2021
- Rail unions call public meeting over future of Eurostar - 29th July 2021