SEAandSKY (Waterfront Landing)

SEAandSKY (formerly Waterfront Landing) is a 21-hectare master-planned waterfront community on the Mamquam Blind Channel in Squamish, on land that previously operated as a wood-processing yard. At buildout the development will carry up to 965 townhomes and apartments, a marina, a village centre with commercial-residential blocks, two parks designed to Green Shores principles, and a pedestrian drawbridge to downtown. The civil and coastal infrastructure was estimated at $75 million across multiple phases.

Site preparation was governed by three controlling constraints. Wood-waste fill across the parcel had to be removed or remediated before service trenching could begin. Most of the parcels sat below the District of Squamish flood construction level, so grades were raised to FCL using fill brought in by barge. The site is bisected by a rail corridor and bordered by Highway 99, which meant servicing connections required trenchless rail and highway crossings, and the watermain was carried on the highway overpass bridge rather than buried beneath it.

The engineer-of-record scope covered civil design and field review through site preparation and the multi-phase buildout. Sanitary servicing included the gravity collection network, forcemains, and two lift stations sized for staged loading. Water servicing included the distribution system, a pressure-reducing valve station, and the overpass-mounted watermain. Stormwater facilities handled site runoff through coastal outfalls with oil-grit separation upstream of discharge. Roadway design covered the internal road and laneway network, trails, and traffic controls, with MoTT intersection upgrades on Highway 99 tying the development into the regional road system. Dry-utility coordination ran across BC Hydro, Telus, Shaw, FortisBC Gas, and District fibre.

The stormwater outfalls discharge to the estuary on multiple sides of the site. The outfalls were specified with elastomer-based backwater valves in place of metal flap gates. Elastomer valves have no metal to corrode and no moving parts, which reduces lifetime maintenance on infrastructure exposed to tidal water. At one of the outfalls, dual EFO10 oil-grit separators were installed in parallel to reduce loading to the marine environment. On the roads, cross-sections were designed below standard lane widths and pedestrian crossing distances minimized, as traffic-calming measures inside the village.

SEAandSKY is being delivered in phases and remains under active construction.