Infrastructure Projects

1

FHR6 Blockade Works

12th August 2013

Network Rail & Northern Rail Co-ordination Meeting

2

Todmorden Curve

Aerial View of Todmorden Curve

3

Todmorden Curve

The project involves:

– Reinstatement of approx 300m of new track formation, ballast, sleepers and rail

– 1nr new turnout from the Dn MVN2 and 1nr new crossover on the MVN2 line between Todmorden viaduct and Todmorden Station

– Heavy maintenance of existing turnout and crossover on the FHR6 line

– New signalling, telecoms and power equipment on and off the new chord and spacing alterations between Dobroyd and Summit Tunnel (late new scope)

– Control modifications to Preston Powered Signal Box

– Footbridge at Dobroyd Crossing (by National Footbridge Team)

Todmorden Curve

Setting Up Site

Todmorden Curve

Route of New Chord - Now Cleared of Trees

6

Todmorden Curve

Key Milestones• Contract Award (Buckinghams MAFA) Jul-13• Mobilise to site Aug-13 • Installation of new S&C Nov-13 (disruptive access wk 31 and 32)• Heavy Maintenance (FHR6) Dec-13 (during Holme Tunnel disruptive access)• Commission Signals MVN2 Jan-14 (disruptive access wk 41 24hr)• Commission and Hand back Chord Feb-14 (disruptive access wk 45 50hr)

Current Status• Site setup under way• Material deliveries over next 8 weeks – engineering train• Design underway• Survey and GI works in progress

7

Holme Tunnel Repair

8

Holme Tunnel Repair

Background• ELR: FHR6 Gannow Junction to Hall Royd Junction • Masonry & brick tunnel• Constructed between 1845 and 1849• 265 yards (242 metres) long• Located near the village of Holme Chapel, Cliviger

9

Holme Tunnel Repair

Defects• Severe distortion of tunnel bore at

Todmorden end• Distortion of Todmorden portal• Brickwork defects along tunnel length

Causes• Landslide movements• Seismic activity and faulting• Climate and rainfall• Streams and groundwater• Mining at Todmorden End• Excavations at landslide toe

10

Holme Tunnel Repair

Remit• Reinstate structural integrity to allow

return to normal asset management regime

• Reinstate Standard Gauge Clearance• Removal of performance and line

closure risk due to continued deterioration

• Allow removal of 20mph PSR, and passive provision for 75mph line speed

Solution• Undertake primary and secondary

grouting prior to main works

• Remove and replace signalling and tellecoms cables

• Remove and replace 600m of Permanent Way

• Replace existing masonry lining at Todmorden end with new concrete lining and strengthen invert.

• Reconstruct Todmorden Portal

• Repairs at Burnley end to brickwork lining

• Install new 6ft drainage

11

Holme Tunnel Repair

Remit• Reinstate structural integrity to allow

return to normal asset management regime

• Reinstate Standard Gauge Clearance• Removal of performance and line

closure risk due to continued deterioration

• Allow removal of 20mph PSR, and passive provision for 75mph line speed

Solution• Undertake primary and secondary

grouting prior to main works

• Remove and replace signalling and tellecoms cables

• Remove and replace 600m of Permanent Way

• Replace existing masonry lining at Todmorden end with reinforced concrete lining and strengthen invert.

• Reconstruct Todmorden Portal

• Repairs at Burnley end to brickwork lining

• Install new 6ft drainage

12

Holme Tunnel RepairKey Milestones• Establish Site Compound Jul 2013• Start preliminary grouting Jul 2013• Finish preliminary grouting Nov 2013• Blockade Start Date 9th Nov 13• Remove S&T cables 11th Nov 13• Remove existing p-way 12th Nov 13• Establish work area in tunnel 13th Nov 13• Start tunnel relining works 13th Nov 13• Start portal works 11th Dec 13• Complete relining works 2nd Mar 14• Complete portal works 13th Mar 14• Re-establish S&T cables 13th Mar 14• Grade ballast and lay track 19th Mar 14• Test and commission 24th Mar 14• Blockade end date 24th Mar 14• Demobilise site 11th April 14

Progress to Date• Site compound established• Installation of Road Rail Access Point• Drilling and grouting in progress• Progressing finalisation of design

13

Holme Tunnel Repair

14

Holme Tunnel Repair

15

Holme Tunnel Repair

16

Holme Tunnel Repair

17

Additional Work Items

• Structural Repairs at Lydgate Viaduct

18

Additional Work Items

• Structural Repairs at Lydgate Viaduct

• Embankment stabilisation at Kitson Wood

• Embankment stabilisation at Walk Mill

19

Additional Work Items

• Structural Repairs at Lydgate Viaduct

• Embankment stabilisation at Kitson Wood

• Embankment stabilisation at Walk Mill

• Improved drainage, waterproofing and structural repairs at Burnley Road Bridge

20

Additional Work Items

• Structural Repairs at Lydgate Viaduct

• Embankment stabilisation at Kitson Wood

• Embankment stabilisation at Walk Mill

• Improved drainage, waterproofing and structural repairs at Burnley Road Bridge

• Minor works to 27 structures along the route

Infrastructure Projects

21

FHR6 Blockade Works

12th August 2013

Network Rail & Northern Rail Co-ordination Meeting