Top Projects 2008: Civil/Winner

WINNER: BELGRAVIA BRIDGE

An important component of Edmonton's south LRT expansion involves construction of a bridge to carry traffic over one of the most heavily traveled roads in Edmonton.

The bridge is designed to get vehicles-primarily buses from the new South Campus Transit Centre-over busy Belgravia Road and onto Fox Drive. The transit centre is located near the University of Alberta's football and soccer fields.

General contractor Alberco Construction Ltd. says the project was originally designed as a 150 m long bridge with 300 m of roadway built into an existing sensitive embankment supported by a tangent pile retaining wall.

Alberco redesigned the project to reduce the number of piles from 216 to just 75 and provide an elevated bridge structure that minimized damage to the land while not adversely affecting nearby homeowners.

Total length ended up at 460 m. The project used existing slopes and tree stands to reduce the visual impact of the project on area residents. As you can see by the accompanying photo, the bridge is hidden behind a large thick native tree stand. That makes it difficult to view from Saskatchewan Drive.

The redesign also allowed the bridge to be lowered to reduce noise impact to residences. And it provided a clear span over Belgravia Road using a trellis-type structure. The end result was that the City of Edmonton realized a savings of nearly $2 million.

Adding to the complexity of the project was the fact that Belgravia Road is a major route to and from the university's main and nearby hospital. Thousands of motorists use the road daily.

Total cost of the project was $28.4 million. Stantec Inc. and Brybil Projects Ltd. were key consultants on the project.

RUNNER-UP: ST. ALBERT FIRE SERVICES HEADQUARTERS

St. Albert's new $10.8-million fire services headquarters and fire station is a building with everything a firefighter needs.

First, it has space-22,000 sq. ft. There are four equipment bays suitable for eight fire and emergency medical services vehicles, eight dormitory rooms, office space, training rooms, fitness area, and a 60 ft high tower for hose drying and exterior repel training.

There is also an evidence room, hazardous material storage room, and an emergency command centre.

Designed by Sahuri + Partners Architecture Inc. and Holland Roth Architects, the fire building was built to a LEED Gold certification level. General contractor PCL Construction Management Inc. says a highlight of the project was the "positive and trusting relationship" between the city, consultants, and its project team. "This relationship can be attributed to a proactive client management plan based on open communication, organization, and teamwork," it said.

Consulting engineers were: Protostatix Engineering Consultants Inc. (structural), Earth Tech Canada Inc. (mechanical and electrical), ISL Engineering & Land Services Ltd. (civil), and EIDOS Consultants Inc. (landscaping).

RUNNER-UP: BEARSPAW WATER TREATMENT PLANT

The $132-million pretreatment and residuals treatment facilities at the Bearspaw Water Treatment Plant use state-of-the-art technologies to create high-quality drinking water without wasting a drop.

The pretreatment facility uses a four-step process to clean river water. Hydrocyclones separate sludge removed through the process and send it to the residuals treatment facility. There, solids are centrifugally dewatered and sent to a landfill.

The process exceeds existing regulations and is a big improvement over the previous system, which sent some clean water and sediments back into the river.

Environmental sustainability was top of mind throughout the project. Concrete from the original sedimentation basin, demolished to make room for the pretreatment facility, was reused in site roads and as backfill. Metals removed during the demolition were recycled. High fly-ash concrete, which reduces greenhouse gases, was also used.

PCL Construction Management Inc. was general contractor. Architects were Associated Engineering Alberta Ltd. and Goodfellow Architecture Ltd. Associated Engineering was also involved in the project's engineering work.

RUNNER-UP: CITY of RED DEER CIVIL YARDS

The City of Red Deer's new civil yards project involves relocating the Public Place Works; Environmental Services; transit; materials management; electric light; and Power, Parks, and Ecological Services facilities from the west downtown Riverlands area to city-owned property in the northeast section of the city in the Riverside Heavy Industrial Area. It is expected that the new site accommodate approximately 8 to 10 years of growth.

The overall site layout of the multimillion-dollar project integrates a series of walkways and ponds into the surrounding park land while serving as buffers and a naturalized stormwater management system. In addition, many of the buildings have environmentally friendly features, including solar chimneys, solar hot-water heating, and functional shading devices made from recycled telephone poles.

Stuart Olson was the general contractor. IBI Group Architects Engineers in association with John Hull Architect provided architectural services. Key consulting engineers were Bearden Engineering and Earth Tech, which was acquired in July by AECOM, a global provider of professional technical and management support services to government and commercial clients around the world.

RUNNER-UP: E.L. SMITH WATER TREATMENT PLANT UPGRADES

Increasing the capacity of Edmonton's E.L. Smith Water Treatment Plant was quite a feat for Clark Builders. Working in an operating facility left little room for error.

More than $40 million worth of upgrades were carried out, including building a new river intake consisting of four concrete pipes extending over 170 m. In just 13 hours, three concrete pumps placed over 1,000 cu. m of concrete to create the intake's base.

Clark's field staff coordinated all aspects of the construction, including building a 160 m work bridge to provide access for the construction of a 660-pipe cofferdam. A 12,064 cu. m water chamber served as a foundation for a two-storey pumphouse.

When it came to replacing part of the only existing pipe taking raw water from the original pumphouse, staying on schedule was critical. A 48-hour shutdown and precision timing allowed the team to install the new piping and valves. Architectural and consulting work was by Associated Engineering.


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