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KGS Group ACEC Awards

The Association of Consulting Engineering Companies – Manitoba (ACEC) (formerly Consulting Engineers of Manitoba (CEM)) Annual Awards of Excellence in Consulting Engineering serves to foster and promote the provision of exceptional product and service locally, nationally, and internationally. The event further serves to inform the public that standards of excellence exist and are being met in Manitoba, and to promote the services of Manitoba's Consulting Engineers in their work at home and abroad. The event offers two levels of awards: Award of Merit and Award of Excellence, to successful entrants under six engineering categories. The prestigious Keystone Award is presented each year for the event’s best overall project that is selected from the Award of Excellence recipients. KGS Group has won a number of these awards:

Keystone Awards:

2018 - Peter Sutherland Sr. Generating Station

2016 - Pointe Du Bois Spillway Replacement Project

2015 - Mayo B Hydro Enhancement Project - Intake Tunnelling and Rock Stabilization

2012 - Assiniboine River Flood Emergency Engineering

2009 - PR 313 Functional Design Study


Awards of Excellence:

2018 - Cockburn Sewer Relief Project: 2,700 mm Trunk Sewer

2018 - PR 304 to Berens River All Season Road and Water Crossings

2017 - Rainy River WTP Trihalomethane Pilot Study and Systems Upgrade

2016 - Pointe Du Bois Spillway Replacement Project

2016 - Assiniboine River and Lake Manitoba Basins Flood Mitigation Study

2015 - Mayo B Hydro Enhancement Project - Intake Tunnelling and Rock Stabilization

2013 - Red River Floodway Inlet Control Structure Trunnion Anchor Replacement

2013 - GE Aviation Engine Testing, Research and Development Centre

2012 - 2011 Assiniboine River Flood Emergency Engineering

2010 - The Pointe du Bois Wastewater Collection System Renewal Project

2009 - PR 313 Functional Design Study

2003 - Red River Floodway Expansion Study


Awards of Merit:

2018 - Great West Life Daycare

2017 - Synchronous Condenser Facility

2016 - Whitehorse Diesel LNG Conversion Project

2016 - Advance Satellite Integration Facility

2015 - Brandon Third Street Dam

2013 - Pointe du Bois Spillway Replacement Project, Eco-Hydraulic Studies

2013 - Red River Floodway Inlet Control Structure Mechanical and Electrical Upgrades

2012 - Mayo B Hydro Enhancement Project

2011 - Letellier Bridge West Bank Stabilization

2011 - Boundary Dam Spillway Upgrade

2008 - Inland Pine Ridge Project

2007 - Hawthorne Flood Pumping Station

2007 - The Plaza at the Forks

2006 - Red River Floodway – Project Definition and Environmental Assessment (PDEA)

2005 - Dorsey Converter Station: Fully Sustainable Groundwater Cooling System Thermally Balanced Aquifer Storage Regime

2004 - Waterfront Drive


A brief description of KGS Group’s recent ACEC award winning projects are as follows:

2018 ACEC Keystone Award

PETER SUTHERLAND SR. GENERATING STATION

Ontario Power Generation (OPG) and Coral Rapids Power Corporation (CRP), a company wholly owned by Taykwa Tagamou Nation (TTN), are equity partners in the Peter Sutherland Sr. Generating Station. Named after a respected community elder, the new 28 MW hydroelectric power station is remotely located at the confluence of the Abitibi River and New Post Creek within the TTN traditional territory of northeastern Ontario. A portion of the flows from New Post Creek have been harnessed to provide clean renewable hydroelectric energy.

KGS Group worked closely with OPG and CRP through the conceptual and preliminary design stages and were ultimately retained as the Owner’s Engineer through the design-build construction phase.

The multi-disciplinary project consists of the following primary facets:

  • A Powerhouse with two horizontal Francis turbine units;
  • A 4 m diameter Steel Penstock 250 m long;
  • An Intake Structure and Approach Channel;
  • A 520 m long Earth Dam with a cement-bentonite core;
  • A two-bay Spillway.

Construction was completed safely, on budget, and ahead of schedule in March 2017.

The project is not only an investment into Ontario’s clean energy future; it is a symbol of reconciliation and the culmination of a strong partnership between CRP/TTN and OPG that will benefit the community for generations.


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Keystone Award Peter Sutherland Generating Station

2016 ACEC Keystone Award

POINTE DU BOIS SPILLWAY REPLACEMENT PROJECT

KGS Group worked collaboratively with Manitoba Hydro as the Designer in an ECI project delivery process along with Peter Kiewit Infrastructure as the Contractor to undertake the Pointe du Bois Spillway Replacement Project.

KGS Group successfully employed a comprehensive 3D Design Model to complete the design and construction of:

  • A 7-bay spillway totaling 26,500 m3 of reinforced concrete;
  • Channels requiring 682,000 m3 of bedrock excavation; and
  • Zoned embankment dams over 1 km in length.

Designing a complex project entirely within a 3D modeling environment takes engineering to a whole new level given the realized ability to virtualize the end product at the design stage and harmoniously advance a concept into reality across multiple disciplines.

The Project was successfully completed without any interruptions to the ongoing operation of the plant, while protecting and preserving established Lake Sturgeon habitat and restoring the natural landscape in this environmentally sensitive Provincial Park setting.


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Keystone Award Point Du Bois Spillway Replacement

2015 ACEC Keystone Award

MAYO B HYDRO ENHANCEMENT PROJECT - INTAKE TUNNELLING AND ROCK STABILIZATION

Yukon Energy Corporation enlarged the Mayo Hydroelectric Facility from 5 MW to 15 MW within a two-year fast-track schedule. The complex design required 300 m of tunnel construction through poor bedrock conditions, under challenging artesian groundwater pressures. Tie-in to the 60-year old tunnel at the intake was difficult, complicated by proximity to full reservoir head. Careful mapping and characterization was required to support concurrent tunnel design and excavation, and slope stabilization. Precision LiDAR 3-D survey techniques and modeling were integral to the work. The on-budget, on-schedule project offset costly diesel generation, while annually eliminating 25,000 tonnes of greenhouse gas emissions.


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Keystone Award Mayo B Hydro Enhancement

2012 ACEC Keystone Award

2011 - 2012 ASSINIBOINE RIVER FLOODWAY EMERGENCY ENGINEERING

The unprecedented 300 year Assiniboine River Flood event overwhelmed south-western Manitoba in 2011. Manitoba Infrastructure and Transportation engaged KGS to provide emergency engineering services, along with Canadian Forces, and others forming a diverse integrated team to respond to frequent challenges.

KGS geotechnical, hydraulic and survey/GIS expertise provided timely, effective engineering design and site support to MIT. Innovative solutions and quick decisions were provided under difficult conditions, utilizing helicopter support, infrared night surveillance, flow monitoring, adaptable designs and geotubes.

The integrity of dikes and control structures was maintained and catastrophic damage to property and infrastructure was averted along the Assiniboine River system.


An interview with Steve Ashton, Minister of Infrastructure and Transportation
Consulting engineers key players in 2011 Assiniboine River flood mitigation


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Keystone Award Assiniboine River Floodway

2018 ACEC Award of Excellence

COCKBURN SEWER RELIEF PROJECT: 2,700 MM TRUNK SEWER

KGS Group along with CH2M-Jacobs and the City of Winnipeg, designed and commissioned a 2,700mm diameter trunk sewer that protects the Cockburn West and Southeast Jessie Sewer Districts from basement flooding and our local river and streams from combined sewer overflows. The Project featured Manitoba’s first implementation of large-diameter tunnelling technology to address the specific project needs which include long pipe drivers, large pipe diameters, and site constraints.

Project highlights include:

  • The First Geotechnical Baseline Report
    • Provides a contractual description of geotechnical conditions assumed to be encountered during construction.
    • Provides a mechanism that clearly establishes risk distribution if soil conditions encountered differ from the ranges specified.
  • Use of State-of-the-Art Tunnelling Technology
    • Microtunnelling using Pipe Jacking to advance tunnel and a Microtunnel Boring Machine (MTBM) for soils excavation.
    • Control of slurry pressures in MTBM face and annulus to resist against settlement when tunnelling below the CN Rail lines.
    • Sequential Slurry Separation Process to separate excavated soils from bentonite slurry within a closed loop system eliminating the need for handling of excavated material within the tunnel.

This Project sets the benchmark for all future tunnelling initiatives both in the City and throughout the Province.


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ACEC Award of Excellence Cockburn Sewer Relief

2018 ACEC Award of Excellence

PR 304 TO BERENS RIVER ALL SEASON ROAD AND WATER CROSSINGS

Lake Winnipeg's east side is a provincial jewel, with vast stands of boreal forest, an abundance of wildlife and a vibrant traditional culture. Despite these assets, the lack of permanent road connectivity results in harmful societal and economic impacts.

Recognizing the benefits of reliable access, the consortium of Dillon Consulting, AECOM and KGS Group oversaw the construction of 158-km in new all-season roadway including 9 individual river crossings connecting both Bloodvein and Berens River First Nations. Over a 6-year duration, the team met numerous challenges including wide-ranging terrain, seasonal-access restrictions, limited accommodations, rigorous safety requirements, complex assignment sequencing, robust environmental protection measures and timely public liaison.

Unique technical highlights of this project include:

  • Manitoba's first open-bottom, multi-plate arch culvert with MSE wall structure to protect fish habitat;
  • Ground-Penetrating Radar (GPR) studies at fen and other locations to determine subsurface conditions;
  • Sonar mapping to determine and qualify bridge pier and abutment locations;
  • Application of Traditional Ecological Knowledge (TEK) studies to optimize final roadway alignments.

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ACEC Award of Excellence All Season Road and Water Crossings

2017 ACEC Award of Excellence Recipient

RAINY RIVER WATER TREATMENT PLANT (WTP) TRIHALOMETHANE PILOT STUDY AND SYSTEM UPGRADE

KGS Group was retained by the Town of Rainy River, located in southern Ontario, near the United States border, to provide engineering consulting services for the design, construction management and commissioning for the new, self-regeneration ion exchange (IX) system. The IX system was designed to control trihalomethanes (THMs) and haloacetic acids (HAAs), the two major groups of disinfection by-products (DBPs).

The ion exchange system proved economical, and optimized the use of existing assets, including a reservoir that had not been used for more than 20 years; there was no plant expansion required; operational complexities were less than with nanofiltration; the system was automated; and chlorine consumption was reduced by 40%, while removing natural organics to 50% of the Guideline for Canadian Drinking Water Quality guidelines.


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ACEC Award of Excellence Rainy River Water Treatment Plant

2016 ACEC Award of Excellence Recipient and Keystone Award Recipient for Overall Best Project

POINTE DU BOIS SPILLWAY REPLACEMENT PROJECT

KGS Group worked collaboratively with Manitoba Hydro as the Designer in an ECI project delivery process along with Peter Kiewit Infrastructure as the Contractor to undertake the Pointe du Bois Spillway Replacement Project.

KGS Group successfully employed a comprehensive 3D Design Model to complete the design and construction of:

  • A 7-bay spillway totaling 26,500 m3 of reinforced concrete;
  • Channels requiring 682,000 m3 of bedrock excavation; and
  • Zoned embankment dams over 1 km in length.

Designing a complex project entirely within a 3D modeling environment takes engineering to a whole new level given the realized ability to virtualize the end product at the design stage and harmoniously advance a concept into reality across multiple disciplines.

The Project was successfully completed without any interruptions to the ongoing operation of the plant, while protecting and preserving established Lake Sturgeon habitat and restoring the natural landscape in this environmentally sensitive Provincial Park setting.


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ACEC Award of Excellence Point Du Bois Spillway Replacement

2016 ACEC Award of Excellence Recipient

ASSINIBOINE RIVER AND LAKE MANITOBA BASINS FLOOD MITIGATION STUDY

The flood of 2011 highlighted several potential "weak links" in Manitoba's flood control system, which resulted in widespread damage across the Province. To address the propensity for flooding in the Assiniboine River and Lake Manitoba basins, KGS Group carried out a flood mitigation study, which identified major flood vulnerabilities and assessed a wide range of measures to improve protection in the region.

A vast amount of data was reviewed and over 70 mitigation options were evaluated including dikes, reservoirs, diversion channels, wetland restoration and development controls. As well, a number of sophisticated models were developed to calculate cost-benefit ratios and the economic viability of the options.

Working collaboratively with Manitoba Infrastructure and Transportation, the Project Team developed a technical workshop and held Public Open House events to incorporate important feedback into the study findings.

The results of the study identified over $1 billion of flood mitigation upgrades required to increase the flood protection level to provincial standards across the basin. The results will also serve as the foundation for major flood mitigation programs for the next several decades.


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ACEC Award of Excellence Assiniboin River and Lake Manitoba Basins Flood Mitigation Study

2015 ACEC Award of Excellence Recipient and Keystone Award Recipient for Overall Best Project

MAYO B HYDRO ENHANCEMENT PROJECT - INTAKE TUNNELLING AND ROCK STABILIZATION

Yukon Energy Corporation enlarged the Mayo Hydroelectric Facility from 5 MW to 15 MW within a two-year fast-track schedule. The complex design required 300 m of tunnel construction through poor bedrock conditions, under challenging artesian groundwater pressures. Tie-in to the 60-year old tunnel at the intake was difficult, complicated by proximity to full reservoir head. Careful mapping and characterization was required to support concurrent tunnel design and excavation, and slope stabilization. Precision LiDAR 3-D survey techniques and modeling were integral to the work. The on-budget, on-schedule project offset costly diesel generation, while annually eliminating 25,000 tonnes of greenhouse gas emissions.


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ACEC Award of Excellence Mayo B Hydro Enhancement

2013 ACEC Award of Excellence Recipient

RED RIVER FLOODWAY INLET CONTROL STRUCTURE TRUNNION ANCHOR REPLACEMENT

Reliable operation of the gates at the Floodway Inlet Control Structure is critical to protecting Winnipeg during large floods. The gates have performed well for over 45 years, however, life extension measures are now required to ensure the gates continue to provide reliable protection. These measures include replacing the anchors that secure the gate trunnions (hinges) to the concrete. Project challenges included: tight timelines, unprecedented drilling and tensioning methods, replacing and tensioning 44 anchors with a total load of 11 million pounds, precise 3D drilling and machining within confined spaces. The project was completed ahead of schedule and below budget.

Project Description Summary

This project was featured in the Canadian Civil Engineer/Civil Magazine, Fall 2013.

Read Article


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Red River Floodway Trunnion Anchor

2013 ACEC Award of Excellence Recipient

GE AVIATION ENGINE TESTING, RESEARCH AND DEVELOPMENT CENTRE

In 2010, General Electric Aviation formed a partnership with StandardAero to construct a state of the art jet engine certification test centre in Winnipeg. StandardAero engaged a diversified project team including Hanuschak Consultants Inc., KGS Group, and MCW/AGE to provide engineering design services for the test centre. The team provided expertise in structural, electrical, mechanical, and project management to support the design and a highly collaborative 3D model was developed to coordinate the project and combat an aggressive project schedule. The project was successfully delivered on schedule and on budget due to focused and coordinated design and construction.

Project Description Summary


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GE Aviation Engine Testing, Research and Development Centre

2012 ACEC Award of Excellence Recipient and Keystone Award Recipient for Overall Best Project

2011 ASSINIBOINE RIVER FLOOD EMERGENCY ENGINEERING

The 2011 Assiniboine River Flood, estimated to be a 300-year event, continually presented new and urgent situations that required immediate resolve as it swept through southwestern Manitoba necessitating the emergency engineering team to implement new and innovative technologies. Manitoba Infrastructure and Transportation (MIT), KGS Group, the Canadian Forces, and others joined their resources to form a diverse yet integrated team, unifying their fields of expertise to accomplish a common objective. The team implemented several state-of-the-art technologies and unique approaches to combat the flood including:

  • GIS Map-Based Database of the Geotechnical Dike Condition Assessment.
  • CP-140 Aurora Surveillance Aircraft equipped with infrared night vision video cameras.
  • Practical Sandbag / Geotextile Detail for dike stabilization and piping mitigation.
  • Helicopters utilized to deliver sandbags to ground crews working on inaccessible sections of the dikes.
  • Boat-Mounted Acoustic Doppler Current Profilers for real-time flow monitoring of the Assiniboine River, its tributaries and the Portage Diversion.
  • Sand-Slurry Filled Geo-Tubes for wave attenuation on Lake Manitoba.

At the peak of the flood, during dire circumstances, the efforts and experienced judgment of the team preserved the integrity of Manitoba’s flood protection infrastructure, and when flows reached levels beyond their capacities, minimized the consequences by controlling and redirecting flows.


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ACEC Award of Excellence Assiniboine River Flood Engineering

2018 ACEC Award of Merit

GREAT WEST LIFE DAYCARE

The historic Milner House at 51 Balmoral was renovated to become a new childcare facility accommodating 100 children. Great-West Life initiated the adaptive re-use of the vacant 2-1/2 storey house and adjacent lands on the south-west corner of its Winnipeg head office campus to address the need for childcare within both the company and the community.

There are many highlights to the new daycare including:

  • It is the first designated Heritage Status building to be renovated into a child care facility in Manitoba;
  • It is Great West Life's first LEED certified building in Manitoba;
  • It will be the second heritage building to be LEED certified in Manitoba.

The facility will accommodate a total of 100 children: 64 preschool aged and 36 infants and toddlers. Two thirds of spots are reserved for the Great West Life employees, improving the employee's workplace engagement and connectivity.

The facility has been designed with a highly sustainable approach and has achieved LEED platinum certification. Key sustainable features that have been integrated into the facility's design include: energy efficient geothermal heating and cooling, LED lighting, water use reduction, displacement ventilation and low to zero emitting materials for healthy indoor air quality.


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ACEC Award of Merit Great West Life Daycare

2017 ACEC Award of Merit Recipient

SYNCHRONOUS CONDENSER FACILITY - AWARD OF MERIT, INDUSTRIAL CATEGORY

KGS provided engineering services, in collaboration with GE (formerly Alstom) Renewable Power Canada, to design and build a Synchronous Condenser facility at Soldiers Pond for the Lower Churchill Project in the Province of Newfoundland and Labrador. This was part of a larger project which includes an 824 megawatt hydroelectric generating facility at Muskrat Falls in Labrador and a 1,100km High Voltage direct current (HVdc) transmission line from Muskrat Falls to Soldiers Pond.

KGS Group provided all engineering disciplines for the construction of the site including geotechnical, civil, structural, mechanical and electrical engineering. In addition, KGS Group provided site support during a large portion of the Project's construction.


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ACEC Award of Merit Synchronous Condenser Facility

2016 ACEC Award of Merit Recipient

WHITEHORSE DIESEL LNG CONVERSION PROJECT

The project consisted of the construction of a new liquefied natural gas (LNG) fueled backup power generating station and associated infrastructure adjacent to Yukon Energy's existing primary power generating station in Whitehorse, Yukon. Commissioned in 2015, the project site includes two modular LNG fueled reciprocating generators with a total capacity of 8.8 MW intended to replace Yukon Energy's aging diesel generating equipment and to provide flexible and reliable backup power to supplement Yukon's 93 MW of renewable hydroelectric and wind power.

Key Attributes:

  • LNG provides reliable and flexible thermal generation of electricity for the Yukon grid;
  • Reduced greenhouse gas and particulate emissions;
  • Provides significant long term savings to Yukon ratepayers;
  • Yukon's first LNG-fueled Generating Station. LNG had not previously been stored or used as a fuel for electrical power generation in Yukon.

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ACEC Award of Merit Whitehorse Diesel LNG Conversion

2016 ACEC Award of Merit Recipient

ADVANCED SATELLITE INTEGRATION FACILITY

Magellan Aerospace Corp. was awarded a $110 million CDN contract for the RADARSAT Constellation Mission (RCM) satellite bus manufacture. The RCM consists of three low earth orbit spacecraft designed for maritime surveillance (ship detection, ice monitoring and oil spill detection), disaster management and ecosystem monitoring. RCM is one of the largest space projects undertaken by Canada to date and is critical for keeping our space technology capabilities relevant and providing benefits for Canadians.

Design and construction of the Advance Satellite Integration Facility or Clean Room was the first step in the manufacture of these satellites. It involved a multi-disciplined engineering effort between KGS Group and Magellan Aerospace. Architectural, structural, mechanical, and electrical engineering disciplines working closely with Magellan staff throughout the design, construction, and commissioning phases made this project a success and conformed to stringent engineering constraints, as well as tight budget and scheduling requirements. The completed facility went into operation in the spring of 2015.


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ACEC Award of Merit Advanced Satellite Integration Facility

2015 ACEC Award of Merit Recipient

BRANDON THIRD STREET DAM

When the Brandon Third Street Dam was irreparably damaged, KGS Group designed emergency measures to limit further habitat damage and preserve Brandon's water supply. KGS Group then developed a functional, cost effective, permanent solution that also removes a 70-year old barrier to fish passage. The new overflow rockfill weir, with a low flow rock ramp fishway, preserves Brandon’s water supply, restores fish passage, adds spawning habitat, and improves the safety and aesthetics of the river adjacent to Dinsdale Park. KGS Group, the City of Brandon and regulators illustrated that innovative solutions to preserve vital infrastructure can also enhance the environment.


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ACEC Award of Merit Brandon Third Street Dam

2013 ACEC Award of Merit Recipient

POINTE DU BOIS SPILLWAY REPLACEMENT PROJECT, ECO-HYDRAULIC STUDIES

The Pointe du Bois Generating Station is the oldest hydroelectric plant in operation in Manitoba. Manitoba Hydro decided to replace the aging spillway facilities with a modern spillway to meet current dam safety standards. Because the Winnipeg River hosts a productive Lake Sturgeon fishery, the environmental effects of the spillway replacement were carefully assessed. KGS Group and North/South Consultants combined state of the art 3D modeling with site-specific Habitat Suitability Modeling at a level of sophistication not previously undertaken. This approach proved to be instrumental in defining the project arrangement and obtaining the project license to commence construction on schedule.

Project Description Summary


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ACEC Award of Merit Point Du Bois Spillway Replacement

2013 ACEC Award of Merit Recipient

RED RIVER FLOODWAY INLET CONTROL STRUCTURE MECHANICAL AND ELECTRICAL UPGRADES

SNC - Lavalin in conjunction with KGS Group were engaged by the Manitoba Floodway Authority to perform a detailed risk based analysis of the Floodway Inlet Control Structure. The outcome of the analysis resulted in the development of detailed mitigation strategies and subsequent construction to ensure that the existing systems within the original design continue to operate effectively, and to incorporate additional reliability and redundancy into the facility. The objectives for the project included the achievement of an additional 50 years of operating life with reliable operations during that period to satisfy a 1 in 700-year flood capability for the Floodway system. The upgrades included specific measures for improvement to mechanical and electrical systems and were accomplished under demanding circumstances associated with access, complexity, weather and time limitations.


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red river floodway inlet control structure mechanical and electrical upgrades

2012 ACEC Award of Merit Recipient

MAYO B HYDRO ENHANCEMENT PROJECT

KGS Group was retained by Yukon Energy Corporation for the preliminary and final design of the new 10.2 megawatt Mayo B Hydro Enhancement Project. KGS Group was responsible for Contract Administration for the construction work and Quality Assurance for the turbine and generator manufacture in China. The new $120M project displaced diesel generation with sustainable and environmentally responsible energy. A number of technical challenges were overcome by utilizing an innovative risk-reward Alliance Contract with extensive owner-designer-contractor collaboration. First power was provided in December 2011, ahead of schedule and under budget.


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ACEC Award of Merit Mayo B Hydro Enhancement

2011 CEM Award of Merit Recipient

LETTELLIER BRIDGE WEST BANK STABILIZATION

Since its original construction in 1955, the original Letellier Bridge frequently required repair and retrofit alterations resulting from significant riverbank instability and movements. KGS Group implemented bank off-loading and a rockfill toe-berm to improve stability during construction. Extraordinary foundation conditions including the weak Lake Agassiz clay deposit, coupled with a strong upward groundwater gradient, compelled the design team to pursue non-traditional slope stabilization techniques to achieve the service-life safety factor. This was achieved by pioneering two new means of slope stabilization, both first-time applications for MIT and KGS Group:

  • PIN PILES: An array of composite reinforced-concrete columns / steel-pipe piles designed to increase the passive shear resistance of the clay, one of the deepest applications of its kind world-wide. Slope stabilization was designed on the basis of acceptable bank displacements rather than conventional limit-equilibrium.
  • LIGHTWEIGHT FILL: An engineered lightweight fill bridge approach embankment composed of cellular concrete to minimize the destabilizing load applied to the crest of the bank.

The project presented the design team with unique site-specific challenges and an ambitious schedule that necessitated the development and implementation of leading-edge geotechnical engineering solutions.


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CEM Award of Merit Lettellier Bridge West Bank Stabilization

2011 CEM Award of Merit Recipient

BOUNDARY DAM SPILLWAY UPGRADE

Located near Estevan, Saskatchewan, the Boundary Dam Reservoir serves as a source of cooling water for the 980 MW Boundary Dam Generating Station, SaskPower’s largest power plant. In 2005, KGS Group conducted a Dam Safety Review of the facility and identified major concerens with the capacity and condition of the spillway, originall built in 1956. In 2007, KGS Group was retained to design the spillway upgrade. The upgrade would extend the life and the safe discharge capapctiy of the spillway, which was selected as near the peak discharge of the PMF, providing a peak outflow capacity of 1220 cms. The $40 Million spillway upgrade, starting in 2008 and completed in 2010, consisted of replacing the concrete spillway, installing over 420 post-tensioned anchors, improving sub surface drainage systems and modification of the radial gates to allow for higher forebay levels. The design challenges included:

  • Minimizing disruption to coal supply, via coal supply bridge spanning the spillway;
  • Allowing for flood passage each spring, requiring two phases of construction;
  • Challenging foundation conditions including weak bentonite seams, coal layers, and high groundwater pressures;
  • Sequencing the tensioning and re-tensioning of the soil anchors in the spillway slab to maintain the long-term loading as the slab settled.

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CEM Award of Merit Boundary Dam Spillway Upgrade

2009 CEM Award of Excellence Recipient and Keystone Award Recipient for Overall Best Project

THE PR 313 FUNCTIONAL DESIGN STUDY

PR 313 is a parkway into the northern parts of the Whiteshell Provincial Park and the only access route to Pointe du Bois Generating Station. The design study investigated upgrade alternatives for a 10 kilometre segment of the road. The project team developed six unique realignment alternatives in an extremely challenging timeframe. The aggressive project schedule was only achievable by using a 3 dimensional digital terrain model (DTM) of the study area’s irregular topography from a light detection and ranging (LiDAR) survey using fixed-wing aircraft mounted with the remote sensing LiDAR instrumentation. AutoDESK Civil 3D software was used to design the routes through the DTM. An electromagnetic induction survey was also conducted to classify soil materials along the route.


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CEM Award of Excellence PR313 Functional Design Study