Proposal for Northern Extension of Northolt Tunnel sift report

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INTERNAL INFORMATION

 

Northern Extension of Northolt Tunnel SIFT Report 

 

 

Northern Extension of Northolt Tunnel SIFT 

Report C222-ATK-DS-REP-020-000034 

Revision – P06 

 

                      3 

Uncontrolled when printed 

 

 

7.3

 

Excavated Material ............................................................................................. 38

 

7.4

 

Utility Diversions ................................................................................................. 39

 

7.5

 

Environmental Impacts ....................................................................................... 40

 

8.

 

Evaluation against Assessment Criteria .................................................................... 42

 

9.

 

Environmental Appraisal Template .......................................................................... 44

 

10.

 

Level of SIFT ............................................................................................................. 57

 

11.

 

Summary and Recommendations ............................................................................ 57

 

Appendix A Options Drawings .......................................................................................... 59

 

A.1

 

C222-ATK-CV-DPP-020-000001 ........................................................................... 59

 

A.2

 

C222-ATK-TN-DSK-020-990400 ........................................................................... 59

 

A.3

 

C222-ATK-TN-DSK-020-000340 ........................................................................... 59

 

A.4

 

C222-ATK-TN-DSK-020-000341 ........................................................................... 59

 

A.5

 

C222-ATK-RT-DSK-020-011303 ........................................................................... 59

 

A.6

 

C222-ATK-RT-DSK-020-011304 ........................................................................... 59

 

A.7

 

C222-ATK-RT-DSK-020-011305 ........................................................................... 59

 

A.8

 

C222-ATK-RT-DSK-020-011306 ........................................................................... 59

 

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`Code 

1 - 

Accepted

Uncontrolled when printed 

INTERNAL INFORMATION

 

Northern Extension of Northolt Tunnel SIFT Report 

 

 

Northern Extension of Northolt Tunnel SIFT 

Report C222-ATK-DS-REP-020-000034 

Revision – P06 

 

                      4 

Uncontrolled when printed 

 

 

List of figures

 

Figure 2.1 Provision for Heathrow Spur .................................................................................................. 7 

Figure 5.1 Location Plan ........................................................................................................................ 14

 

Figure 6.1 Railhead Location west of Harvil Road ................................................................................. 23  

Figure 6.2 Turnout Chamber ................................................................................................................. 24 

Figure 6.3 Shaft Locations ..................................................................................................................... 26 

Figure 6.4 Shaft E1 ................................................................................................................................. 26 

Figure 6.5 Shaft E2 ................................................................................................................................. 27

 

 

List of tables 

Table 4.1 Deign Criteria ......................................................................................................................... 10 

Table 4.2 Key References ...................................................................................................................... 12

 

Table 6.1 Initial Proposed Shaft Locations ............................................................................................ 25 

Table 6.2 Journey Time Assessment Results……………………………………………………………………………………..28

 

Table 7.1 Colne Valley Tunnel Costs………………………………………………………………………………………………….33 

Table 7.2 Excavated Materials………………………………………………………………………………………..………………..37 

Table 8.1 Northern Extension of Northolt Tunnel Engineering Appraisal SIFT Assessment Table ....... 39 

Table 9.1 Northern Extension of Northolt Tunnel Environmental Appraisal SIFT Assessment Table ... 41 

 

List of acronyms 

 

DP 

Delivery Partner 

EIR 

Environmental Information Request 

FOI 

Freedom of Information 

PSC 

Professional Services Consultant 

PSF 

Professional Service Framework 

 

References 

 

Title 

Reference 

HS2 Project dictionary 

HS2-HS2-PM-GDE-000-000001 

Style guide 

HS2-HS2-CO-GDE-000-000001 

HS2 – Route Development Appraisal Template 

HS2-HS2-SA-TEM-000-000004 rev. P02 

HS2 Route Development Procedure 

HS2-HS2-SA-PRO-000-000007 rev. P04 

 

 

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