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GEO Report No. 246
Report No. : GEO Report No. 246

Report Title : Review of the 4 May 2007 Rockfall Incident on Slope No. 11NE-C/C62 at Hong Ning Road Kwun Tong (2009), 75 p.

Author : Halcrow China Limited

Abstract

This report presents the findings of a review of a rockfall (Incident No. 2007/05/0008) which occurred on slope No. 11NE-C/C62 at Hong Ning Road, Kwun Tong, Kowloon on 4 May 2007. The incident involved the detachment of a rock block, with a failure volume of about 0.03 m3, from the northeastern end of the slope. The rock block broke into several pieces upon landing at a catchpit and came to rest on the pedestrian pavement at the slope toe. As a result of the incident, the pedestrian pavement and a section of the northbound carriageway of Hong Ning Road were temporarily closed. No casualties were reported.

The key objectives of this review were to document the facts about the incident and to present relevant background information and pertinent site observations made under this review. The scope of the review does not include any ground investigation or detailed diagnosis of the causes of the incident. Recommendations for follow-up actions are reported separately.


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