Old Fort Geotechnical Report

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R-13

REPORT To:

Chair and Directors

Date: December 4, 2018

From:

Trish Morgan, General Manager of Community Services

Subject: Old Fort Landslide Geotechnical Assessment

RECOMMENDATION: [All Directors – Corporate Unweighted] That the Regional Board receive the December 4, 2018 report “Old Fort Landslide Assessment Reports” for discussion. BACKGROUND/RATIONALE: On September 30, 2018 a significant landslide severed Old Fort Road, isolating all the homes on the east side of the slide and disrupted BC Hydro and Telus infrastructure. As the hazard could not be fully assessed, and as slide movement continued, it became necessary to place the entire area under an Evacuation Order and to restrict movement to the area. During the response to the 2018 event a geotechnical analysis of the area was conducted by Westrek Geotechnical Services; this analysis was then put through a peer review process conducted by BGC Engineering. The geotechnical analysis suggests that further land and/or rockslide activity is inevitable, however for almost all properties the risk level is currently tolerable and this supports continued use (at this time). Both the final report from Westrek titled “Emergency Landslide Assessment, Old Fort, BC” and the BGC Engineering peer review of the assessment are attached to this report. Next Steps: 1) Community Meeting on Monday, December 17th at 7:00 pm at the North Peace Cultural Centre to present the final Westrek Report to Old Fort Residents. 2) Staff to work with consultants and the Province to determine appropriate monitoring options, including estimated costs and responsibility to present options to the Board. 3) Testing and finalization of the Everbridge Mass Communications tool so that Old Fort residents can be added to the system for immediate targeted notifications prior to 2019 freshet. 4) Establishment of a Recovery Manager position (if funding approved by EMBC) for an initial 6 month term to assist with: a. Finalization of an evacuation plan for Old Fort b. Development of an emergency plan that gives consideration to specific response actions should there be a future landslide c. Identification of unmet community needs and development of options to provide assistance where possible d. Oversight of a long-term hazard assessment, mitigation and monitoring plan by a third party consultant (possible) Staff Initials:

Dept. Head:

CAO: December 14, 2018

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