On March 25, 2011, Hall Constructors was awarded the contract to perform slope stabilization works above the spillway at BC Hydro’s WAC Bennett Dam near Hudson’s Hope, BC. This project will consist of blasting and excavating over 230,000 cubic yards of rock as well as installing anchors and shotcrete on the final slopes above the spillway. Upon completion of the blasting, protective rock mesh will be installed to further minimize the possibility of rock fall. This project was completed in November, 2011.
The Ewen Avenue reconstruction project contains a large scope of work ranging from utility installation to road construction and landscaping. Some the tasks include the following:
- Greater Vancouver 600 mm water main installation
- City of New Westminster 250 mm water main installation
- City of New Westminster storm installation
- City of New Westminster sanitary force main installation
- Shaw and City of New Westminster electrical installation (sub-contracted out)
- Road re-construction
- Road widening
- Multi path installation
This project poses many challenges which include some of the following:
- Coordinating with New Westminster residents
- Maintaining traffic along Ewen Ave. while maintaining production
- Managing water levels in the utility trenches as it is below sea level in some cases
- Excavating and installing utilities near existing utilities under ground
Project consisted of select demolition of BC Place, Jet Grout Piles, Driven Pile Piles, Bulk / Detailed / Mechanical Excavation complete with Shotcrete and Anchor Shoring system. Total volume of material removed was 160,000 m3 of which approximately 45,000 m3 was contaminated. Schedule was a major factor on this project and Hall Constructors was able to deliver the excavation 2 months ahead of schedule.
A brand new 4 direction interchange was constructed on HWY 99 at 16th Avenue. The project required the relocation of Ferguson and Carlson Creeks. Two pre-cast panel walls were required for north and southbound off ramps, the later requiring a curved wall. Property acquisitions were untimely so a temporary stream channel had to be constructed to bypass an entire portion of the project site for several months. The project was completed 2 months ahead of schedule.
This project consisted of the supply and installation of a geo-membrane closure system (5.5 Ha area), gas extraction well drilling, excavation, grading, construction of a leachate and gas collection system, gas system upgrades, a 4 Ha double-lined surface water detention pond and erosion and sediment control measure. All work was substantially complete within a short time of 3.5 months.
The 96th Avenue project involves ultimate Arterial Road widening including storm sewers, water mains, curb & gutter, paving, sidewalks, street lighting, traffic signals, retaining walls, preloading and bridge construction in the City of Surrey along 96th Avenue between 160th Street and 168th Street. One of Surrey’s major federal stimulation funded projects, a major portion of the project was completed in March, 2011. A second phase of the bridge crossing Serpentine River was completed in the summer of 2011. The major challenge of the project is the road construction between 160th to 164th. Construction in the area involves excavation and road construction work on existing properties on both sides of the Arterial. Major property restoration and reconfiguration to the properties in the area are part of the work in this challenging project.
Project included 3.5km of road re-construction, 7,000m of curb & gutter, 700m of concrete sidewalk, a roundabout, 3km of multi-use path, intersection improvements, street lighting, sewer and watermain construction, detention pond and landscape works. Scope: - Remove existing concrete and asphalt road - Reuse road concrete as base of multi-use pathway - Reconstruct road, curbs and gutters - Construct new detention pond - Lighting and signalized intersection - Landscaping
Widening existing 2-lane arterial connector to Hwy 1 to four lanes. Clearing, excavation, replacement of storm, sanitary & water services to existing homes, 1500m2 retaining wall, new catchbasins, granular base & subbase, new curbs & sidewalks, asphalt paving, decorative handrail, relocation of BC Hydro & Telus infrastructure, upgrading signalizing three intersections, streetlighting & property restoration. Main challenge is to maintain continuous two-lane traffic on paved surface and continuous access to private properties whilst building the new roadway and utilities.
Work involves the installation of a layered cap onto a prepared, filled landfill or landfill area. The layers which make up the layered cap consist respectively of gravel, sand, geomembrane, geotextile and topsoil, with vegetation planted in the topsoil layer. In addition, gas works, including vertical extraction wells, piping/connections and appurtenances integrated with the layered closure system, are also installed.
The construction/installation of gas works within the Phase 3 SE and Phase 3NE areas are included in the Work. The City’s Consultant has prepared the Specifications and Drawings for the Work which includes, but is not limited to, the following work outlined further within Schedule 2 – Specifications and Drawings:
A new offramp was constructed to provide direct access to the Boundary Bay Airport via HWY 99 Southbound. The Ladner Trunk Interchange also required some interim upgrading to facilitate an acceleration lane for HWY 99 Northbound. This required shoring of the north abutment fill slope and preloading of all new construction with about 35,000m3 of preload. This project was completed on schedule.