Expert hydrology report 10 January 2011 flood—circumstances and contributing factors

Part 1 (PDF, 4.8MB)

Table of Contents

1. Summary of Conclusions

Part 2 (PDF, 7.3MB)

2. Introduction
3. Qualifications and Experience
4. Conflicts of Interest
5. Structure of the report
6. Key information
7. The 10th January 2011 flood event
8. Preparation of the GFCOI flood model
9. Chronology of the 2011 flood event
10. Effect of the Grantham quarry on flooding
11. Effect of the railway embankment on flooding

Part 3 (PDF, 5.9MB)

12. Testing model performance
13. Corroboration by eye-witness accounts

Part 4 (PDF, 2.9MB)

14. Flood evacuation

• Appendix A—References
• Appendix B—Technical reviews

Part 5 (PDF, 4.1MB)

• Appendix C—Extract of selected figures (enlarged)

Part 6 (PDF, 15MB)

• Appendix D—Cirriculum Vitae
• Appendix E—Letters of Instruction

Supplementary reports

• Expert hydrology report - supplementary material (PDF, 9MB)
• Expert hydrology report – supplementary report 2 (PDF, 6.8MB)

Videos

• Most likely scenario (MP4, 35.5MB)
• No quarry scenario (MP4, 35.6MB)
• No rail embankment (MP4, 35.7MB)
• Worst case scenario—greatest delay (MP4, 35.5MB)
• Worst case scenario—greatest drop (MP4, 35.5MB)
• Supplementary 1 - Most Likely (greatest delay) case, levee failure at 3:59pm (MP4, 36MB)
• Supplementary 1 - Most Likely (worst case delay) case, levee failure at 4:16pm (MP4, 36MB)
• Supplementary 1 - Most Likely case, with all bunds and spoil removed (pit remains) (MP4, 35.9MB)
• Supplementary 1 - Most Likely case for an approximated May 1996 flood (MP4, 123.9MB)
• Supplementary 1 - Pre-quarry case for an approximated May 1996 flood (MP4, 123.9MB)
• Supplementary 2 – Most likely scenario (MP4, 35.5MB)
• Supplementary 2 – No quarry operations scenario (MP4, 35.6MB)
• Supplementary 2 – No rail extended scenario (MP4, 35.6MB)