9 Erskine Lane— Technical Design Brief

Minimal overland flow is expected to reach the site from adjacent properties. Flow originating from the north is expected to be intercepted by the existing undeveloped land.

2.6 Storm Water Management – Offsite

The offsite drainage is controlled by the existing profile of Erskine Lane. This profile divides the site into two separate drainage systems as shown in Appendix A.

The north portion of the site flows into an existing ditch along the east side of Erskine Lane, flowing north, which enters into an existing culvert that appears to run under Erskine Lane. More research will need to be completed as there is no discernable outlet to this culvert. The south portion of the site will connect into an existing storm water infrastructure running parallel to Erskine Lane. The municipal system conveys the storm water to a discharge point in Craigflower Creek, approximately 135m to the south. As part of frontage improvements associated with this development, the existing ditches fronting the site will be enclosed in an extension of the existing storm systems. Curb/gutter and catch basins will also be installed on the east side of Erskine Lane fronting the site to capture road runoff.

Following the construction of detention and controlled release systems for storm water discharge from impervious surfaces, the overall peak discharge rate from the site will be lower than the pre-development conditions, therefore no upgrades to the downstream storm water infrastructure are expected to be required. The onsite detention facilities will attenuate the peak flow below pre-development conditions, negating the need for downstream upgrades.

2.7 Hydro/Tel/Cable/Gas

Electrical, communications and natural gas infrastructure is available within the Erskine Lane Right of Way. Connection details and potential upgrades will be assessed through the detailed design phase.

2.8 Transportation, Road Access and Egress

Two 7.0m wide driveways will provide access from Erskine Lane to the internal parking areas which serve visitors and residents, as well as the pickup and drop off locations for each building. The existing paved width of Erskine Lane is approximately 7.8m which will be increased to 8.5m as per Town of View Royal standard road detail VRSD-R10 which includes a 2.0m sidewalk, curb and gutter along the site frontage of Erskine Lane. No upgrades are anticipated along Watkiss Way but a review of the existing traffic study for the area will need to be completed prior to re-zoning.