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[[File:Sterns_20160723.jpg|thumb|300px|right|The telegraph pole at Sterns (summer)]][[File:Sterns_20180325.jpg|thumb|300px|right| The telegraph pole at Sterns (spring)]]'''Sterns ''' is a location situated between [[Hampton Loade]] and [[Bridgnorth]], at the foot of [[Eardington Bank ]], at approximately MP [[Gradient profile and mileages|milepost 147]]. It is the point at which a place where the [[River Severn]] is closest approaches close to the railwayat almost 90 degrees before turning away southwards towards Bewdley, and is notorious as a maintenance trouble spot, due to the ground regularly slipping towards the river many times on numerous occasions over the history of the railway. During the last Ice Age, the valley of the River Severn was scoured out by glacial action and bands of different types of material were deposited at varying depths. This subsequently resulted in the formation of 'slip-planes' where the different layers can slide over each other, particularly when placed under a load such as the presence of a railway line and especially after periods of heavy rain. The line Slip-planes exist throughout most of telegraph poles adjacent to the railway vividly illustrates this, with one post having been carried away from the line by ground movements since the mid-1970svalley but have resulted in areas of major instability at [[Jackfield Halt|Jackfield]] and Sterns.<refname=Sowden>SVR News 52 p26 notes that the poles were adjacent to the track until shortly before 1979[[Bibliography#Books|Sowden (2012)]] pp. 12-14.</ref>, now only just visible in the trees towards the river.

SVR News regularly refers The line of telegraph poles adjacent to repair work the railway at Sternsvividly illustrates the ground movements that have taken place. Some examples are as follows:*Over One post which stood next to the winter of [[Severn Valley Railway Timeline 1970-track until shortly before 1979#1977 | 1976-77]], intense cold followed <ref>SVR News 52 p26</ref> has been carried a significant distance towards the river by heavy rain resulted slips since that time and is now only just visible in the line dropping 2ft 6" and moving 4ft nearer trees towards the river. *In [[Severn Valley The post is mentioned in the Railway Timeline 1990-1999#1995|1994-95]] ten feet of river bank was washed away, triggering further slippage. 3,000 tons of rock was deposited on the river bank as a temporary measure. *In the 's [[2007 Storm Damage|Summer 2007 storm damageFrom The Window]], the first severe thunderstorm did not affect Sterns, but further slips began in the following weeks booklet as one of the wet weather continued. Part of items to see during the solution involved building journey and it carries a 150 foot long piled concrete retaining wall alongside Sterns Cottageyellow flash to make it more visible.*In February 2014, evidence of further subsidence appeared with a significant dip in the line. Pictures of the repair work in progress can be seen in this news archive page on the [http://www.svrlive.com/Pages__TOC__<br clear="all"/News0414.aspx SVR Live] web site.>

==Repair work==SVR News and newsletters regularly refer to repair work at Sterns. Some examples are as follows.===1976-77===Over the winter of [[Severn Valley Railway Timeline 1970-1979#1977 | 1976-77]], intense cold followed by heavy rain resulted in the line dropping 2ft 6" and moving 4ft nearer the river. Permanent way work in progress at [[Borle Viaduct]] was halted while repairs were carried out at Sterns. Remedial work enabled the line to re-open in March with trains passing Sterns at the slowest possible speed, repairs there being completed some three weeks later<ref>SVR News 43, 44</ref>.  ===1994-95===In [[Severn Valley Railway Timeline 1990-1999#1995|1994-95]] ten feet of river bank was washed away, triggering further slippage. 3,000 tons of rock was deposited on the river bank as a temporary measure to protect the bottom of the embankment from further erosion and to 'toe-load' the slip area. A large ditch was also dug alongside the line on the uphill side<ref name=Sowden/>. ===2007===[[File:Sterns_20160514.jpg|thumb|200px|right|The cap of the 150 foot retaining wall alongside Sterns Cottage]]In the [[2007 Storm Damage|Summer 2007 storm damage]], the first severe thunderstorm did not affect Sterns. However further slips began in the following weeks as the wet weather continued, both at the area normally affected and further to the north by Sterns Cottage, the house alongside the line on the side nearer the river. Part of the solution involved building a 150 foot long piled concrete retaining wall alongside Sterns Cottage. This required 75 24-foot long vertical piles reinforced by 37 42-foot long angled soil-nails and covered by a concrete cap<ref name=Sowden/>.<br clear="all"/> ===2014===[[File:Sterns_20140316.jpg|thumb|300px|right|Dip in the line seen from the DMU]]In mid-February 2014 evidence emerged that further subsidence was taking place when a significant dip in the line appeared at the north end of the Sterns area close to Sterns Cottage. A 'stop and proceed with caution' restriction was put in place until repairs could be completed over the following months. A large concrete sleeper wall was built at the toe of the slip and packed behind with approximately 150 tonnes of ballast. This was topped off with around 200 tonnes of graded stone in order to help to stabilise the slip and drain the water from the embankment. Full-time staff, with the help of [[Other rolling stock visiting the SVR|hired in plant]] completed the repairs to the line<ref>SVR Live April 2014</ref>.<br clear="all"/> ===2020-2022===[[File:Sterns_20200808.jpg|thumb|300px|right|Lineside view of the drainage ditch and repair works uphill from it, looking north]][[File:Sterns_Drone.jpg|thumb|300px|right|Aerial view of the repair works looking south (River Severn to the left)]]Following [[Severn Valley Railway Timeline 2020-2029#2020|extensive flooding in February 2020]] land movements were again observed. A comprehensive drainage network was proposed to collect rainwater and transport it to the river in an efficient manner before it could get down to the slip planes and exacerbate the problem.<ref>[https://www.svrlive.com/bljun20 Branch Lines, June 2020] (Retrieved 26 June 2020)</ref> Contractors Walsh Construction completed this water management work by 29 July as planned, with the final item being the lining of the existing drainage ditch with concrete canvas. The work was funded by £120,000 from the [[Severn Valley Railway Charitable Trust Ltd|SVR Charitable Trust]].<ref>[https://www.svrlive.com/blaug20 Branch Lines, August 2020] (Retrieved 3 August 2020)</ref> In spring of 2022 Walsh and SVR staff undertook a further project. A deep area of ballast had developed from successive tamping over the years. 300 cubic metres of embankment comprising around 150 tonnes of ballast and 650 tonnes of fill material were replaced with around 400 tonnes of Leca (lightweight expanded clay aggregate) and 40-60 tonnes of ballast. This reduced the weight on the embankment, thereby lessening the progressive movement.<ref>[https://www.svrlive.com/blfeb22 Branch Lines, February 2022] (Retrieved 7 March 2021)</ref> Both projects are hoped to mitigate the problems, but neither is intended to provide a lasting solution. Electronic ‘tilt monitoring’ equipment was fitted in February 2021<ref>[https://www.svrlive.com/blmar21 Branch Lines, March 2021] (Retrieved 7 March 2021)</ref>. Following the insolvency of the provider this was taken out of use in 2023. <br clear="all"/> ==Speed restrictions==The section of line through Sterns was for many years under a strict 5mph speed limit, with the drainage improvements and earthworks in 2013/14 finally allowing for the limit to be increased to 15mph (although further ground movement led to the reinstatement of a lower temporary speed limit soon after). A consequence of this speed restriction is that northbound trains are made to work harder as they are prevented from ‘taking 'taking a run’ run' at Eardington Bank. ==Access for photography==Travelling South on the B4555 follow the road past [[Eardington|Eardington station]]. A large layby can be found on the right hand side of the road which is ideally suited to the location at Sterns, accessed via the left turn just before the road diverges underneath the railway. ====Directions====The nearest Postcode for Satnav directions is [https://www.google.co.uk/maps/place/Sterns+Coppice/@52.4923847,-2.3955258,17z/data=!3m1!4b1!4m5!3m4!1s0x487062a6ba0734f5:0xcb7a766093a8bb77!8m2!3d52.4928631!4d-2.39395?hl=en WV16 6AU]<br>Lat. & Long. coordinates; 52.369457, -2.280311 [https://www.google.co.uk/maps/@52.4932916,-2.3934153,241m/data=!3m1!1e3 View location on Google Maps] <br>Ordnance Survey Grid Reference; [https://binged.it/2BW4D9J View location on an OS map]

File: Sterns_1_20150228.jpg|The Another view of the displaced telegraph pole (highlighted)