RYZUK GEOTECHNICAL GEOTECHNICAL FIELD REVIEW / SITE INSTRUCTION (November 17, 2020)

GEOTECHNICAL FIELD REVIEW / SITE INSTRUCTION

Project No: 7877-3
Date: November 17, 2020
Project: Proposed Residential Structure – Geotechnical Investigation
Client: Seymour Pacific Developments Ltd.
Project Address: 1938 West Park Lane – Victoria, BC
Contact: Dave Cooper
Project PO:
Email: dave.cooper@seymourpacific.ca

Distribution:
Seymour Pacific - Brett Cheek (brett.cheek@seymourpacific.ca)

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As requested, we visited the referenced site periodically during the construction of the proposed retaining wall located along the northern perimeter catchment area of the parking lot. Our associated observations, comments, and recommendations in this regard are contained herein.

Following scaling of the rock slope and associated clean up the existing gravel subgrade was compacted thoroughly with a diesel plate tamper. The blocks, backfill, and geogrid were then placed sequentially in general accordance with design recommendations. Noted exceptions were that the toe of the block wall was offset by approximately 200 mm from the curb to match the eastern section and to allow for irrigation line installation, with the toe then backfilled with clear crushed gravel. Also, the topsoil portion of the backfill was made level and capped with cobbles, and plantings were installed to suit the landscape design criteria.

In summary, we consider that the retaining wall was constructed in general accordance with design and that such has effectively mitigated the risk of rockfall impacting the parking area. There may be a requirement in the future to remove small piles of rock or soil debris from the short section of exposed slope above the wall backfill area, being in the order of 1.2 m high. We recommend that chainlink fence be installed peripherally to the wall to restrict public access to adjacent rock slope areas.

We trust the preceding is suitable for your current requirements. Please contact us with any questions or concerns.

Best Regards,

Andrew Jackson, P.Geo., Eng.L.
Project Manager

The above does not constitute approval to proceed with the noted work if the work is perceived to be an extra to the Contract. Such can only be authorized by the Contract Manager.