Our Projects

Client:
City of Winnipeg, City of Brandon

Key Services Provided:

• Inspection of Permanent and Temporary Flood Protection Works
• On-Call Response to the Geotechnical Emergency Response Team for the City of Winnipeg.
• Co-ordination of Community Ring Dike Construction

The 2011 flood on the Assiniboine River reached the highest recorded levels in its history, requiring operation of the Portage Diversion to control flows directed towards the City of Winnipeg. Peak flood levels in Brandon were estimated to represent a 1-in-300 year event. Both the City of Brandon and the City of Winnipeg had extensive temporary flood protection deployed that required engineering and logistical support throughout the flood event.

TREK Geotechnical was retained to provide emergency engineering support to inspect permanent and temporary dike structures throughout the the region. TREK provided 24/7 on call services to the City of Winnipeg and their Geotechnical Emergency Response Team (G.E.R.T.). In addition to providing support throughout the region as required, TREK was specifically tasked with coordinating the Glenwood Crescent community sandbag dike along the Red River.

Owner:
City of Brandon

Client:
Dillon Consulting Ltd.

Key Services Provided:
Site Utility Clearances, Sub-surface Investigation, Laboratory Testing, Pavement Design

The Brandon Municipal Airport was constructed in 1941 by the Department of National Defence for use as a Royal Canadian Air Force (RCAF) flight training school. The BMA is now owned and operated by the City of Brandon (COB) and provides scheduled air service, pilot training, military flights, business jets, charter flights, special events, and is a designated as an alternative airport to the Winnipeg James Armstrong Richardson International Airport. Rehabilitation of Runway 08-26, Taxiway ALFA, and Apron 1 was deemed necessary following a 2017 condition report prepared by CIMA+. The pavements were originally constructed in 1957 and had undergone expansion and/or rehabilitation previously in 1970, 1987, and 2001and were exhibiting longitudinal and transverse cracking.

TREK Geotechnical carried out sub-surface investigation in November of 2023 where eighteen test holes were cored and/or drilled in order to evaluate the soil stratigraphy and groundwater conditions. The existing pavements were evaluated using the Aircraft / Pavement Classification Number (ACN / PCN) method and recommendations were provided for pavements, site drainage, a supplementary investigation, and QA testing.

Owner:
Government of Nunavut

Client:
Accutech Engineering Inc.

Key Services Provided:
Engineering support during construction

TREK acted as the geotechnical engineer during construction of the Cape Dorset High School in 2017. A new 3,160 m2 high school was built to replace the original school building that had burned down. TREK provided Engineering support and field observation services during construction of the foundation system for the new building which consisted of shallow spread footings dowelled into bedrock. TREK performed bearing surface condition assessments and the suitability to support the footings and foundation loads. TREK supervised drilling of proof holes to evaluate the competency of the rock below the bearing surfaces and identify the presence and degree of sub-bearing surface fracturing. TREK provided construction recommendations to improve footing performance to meet the design intent by addressing deficiencies identified in the bearing surfaces based on our assessment findings and proof hole drilling.

Owner:
CN Rail

Key Services Provided:
Geotechnical investigations, rail embankment stabilization design, foundation design, tendering and construction support services for:

• Culvert Bridge Replacement/ Rehabilitation
• Timber Bridge Removal and Replacement
• Stabilization of new and existing rail embankments
• Geotechnical Emergency Response

TREK Geotechnical has provided geotechnical design and construction services for CN Rail for nearly a decade. Over this time we have been involved in the rehabilitation of existing rail embankments, including the removal of degraded timber structures and their replacements, stabilization of problematic sections and drainage improvements. TREK has also been involved with CN’s mainline twinning project, typically in areas where ground conditions are particularly challenging such as muskegs, water bodies, and wet ground conditions. Through these projects, TREK has implemented a number of designs such as rockfill column stabilization, GRS walls, French drains, helical piles, granular shear keys, subdrains, and geosynthetics to ensure the continued and safe operation of the rail. TREK has a proven track record of successfully navigating the challenges often encountered on rail projects such as remote access, maintaining train traffic and safety requirements.

Owner:
City of Winnipeg / Plenary Roads

Client:
PCL Constructors Ltd.

Key Services Provided:
Design and Construction Inspection of Riverbank Stabilization works, including Regrading, Rockfill Columns and Riprap Erosion Protection

The Disraeli Bridges have been a Winnipeg landmark for over 50 years. The Disraeli freeway is a vital connection between downtown Winnipeg and the population of the northeast region of the City. The Disraeli Bridges Reconstruction project is currently underway, and is one of the City’s largest infrastructure project to date. The project was awarded to the Plenary Roads consortium, which includes Wardrop (Tetra Tech) and PCL Constructors as the prime engineering consultant and contractor.

TREK Geotechnical is the lead geotechnical consultant responsible for the design and construction of riverbank stabilization works. TREK also provided geotechnical engineering support services for all construction activities related to bridge construction including construction access points, stability of working platforms with equipment loading, and geotechnical aspects of land drainage sewer and outfall construction.

Owner:
Manitoba Infrastructure (East Side Road Authority)

Client/Structural Consultant:
Dillion Consulting Limited

Key Services Provided:
Geotechnical investigations, quarry/borrow assessment, embankment design on soft soils and peat, bridge foundations, constructability.

The proposed All Season Road (ASR) extends for a distance of approximately 40 km and includes a spur route to the Little Grand Rapids Airport. The ASR will provide year round vehicle access to the Airport from Little Grand Rapids and Pauingassi FN.

TREK Geotechnical was responsible to provide geotechnical design services for 39.5 km of all-season road and associated structures (two bridges, numerous culverts). Our project services included sub-surface investigations along roadways and at bridges, compiling sub-surface investigation and geophysical survey information, slope stability analysis, settlement assessment on soft ground, in particular, peat bogs.

O-Pipon-Na-Piwin Cree Nation Elders Complex
TREK was responsible for the subsurface investigation and design for a new, multi-unit housing complex in the First Nation. The project involved complex surficial geology consisting of sand and gravels, clays and surficial bedrock. Further, the site lies in the area of discontinuous permafrost, requiring specialized design considerations for foundations. The foundation design consisted of shallow strip footings and thickened edge slabs on grade.

Riding Mountain Estates Development
TREK completed a sub-surface investigation and provided recommendations for the new development which includes multiple, single family houses, roadways, sewer and water utilities. The sub-surface stratigraphy consisted largely of sand and the site was well suited for shallow foundation options such as square or strip footings and grade supported slabs. Recommendations for excavations, basements, concrete types, foundation insulation and materials testing during construction were also provided.

Keeyask Construction Camp
TREK was responsible for the subsurface investigation, design and resident inspection services for various foundation types including helical piles,, grade supported slabs and shallow footings for the 1,000 person camp and associated infrastructure. The subsurface stratigraphy was highly variable consisting of sands, tills, organics and bedrock all within permafrost affected areas. TREK provided on-site quality control materials testing for the foundation installation, compaction and lab testing of backfill soils and concrete placement.

Client/Structural Consultant:
Tetra Tech Inc.

Key Services Provided:
Geotechnical investigations, foundation and riverbank stabilization design, construction support services for:

• 3 bridge rehabilitation projects, including underpinning with driven piles and drilled shafts in shale
• 3 bridge reconstruction projects, including driven pile foundations in shale/glacial tills

The 2011 spring flood on the Souris and Assiniboine Rivers was one of the highest ever recorded, and caused more damage to property and infrastructure than any other flood in Manitoba’s history. Manitoba’s roadways and bridges were hit particularly hard by erosion and scour, which undermined foundations and caused damage to structures. Repairing the damaged infrastructure to establish a safe transportation network is a key priority of the Province’s flood recovery plan.

TREK Geotechnical was responsible for the geotechnical design and construction related to six bridge rehabilitation and reconstruction projects along the Souris and Assiniboine Rivers, and over the Portage Diversion. Our project services included sub-surface investigations, instrumentation monitoring, design of embankments, riverbank stabilization works and deep foundations, as well as resident and non-resident support during construction.

Location:
Gillam, Manitoba

Owner:
Town of Gillam

Client:
JR Cousin Consultants Ltd.

Key Services Provided:

• Sub-surface Investigation
• Pavement Structure Assessment
• On-site Quality Control Materials Testing
• Mobile Laboratory

The project involves multi-year construction of 32 residential and municipal roadway renewals in the northern Manitoba town of Gillam. Three options were being considered for the renewal including asphalt overlay, mill and fill or complete replacement. TREK completed a geotechnical investigation to assess existing pavement, granular structure and subgrade conditions to provide design and construction recommendations for the roadway renewals. Challenging subgrade conditions were encountered including significant organic contents (i.e. peats), discontinuous permafrost and soft, wet soils. Problematic subgrade areas were georeferenced and specific recommendations were provided to address the various conditions. Aggregate thicknesses were optimized through the use of our on-site DCP-CBR to measure soil strengths and ensure the overall roadway integrity was maintained while minimizing client costs.

TREK also implemented innovative solutions to achieve environmental and cost advantages through the use of recycled asphalt pavement. TREK also provided on-site construction support and materials testing for subgrade, aggregate and pavements (asphalt and concrete) using our mobile soils laboratory. Quality control during the production of base-course, sub-base, asphalt and concrete aggregates was also provided by TREK including non-resident support for geotechnical related issues.

Location:
Various Sites – Great Slave Lake, Northwest Territories

Owner:
Crown-Indigenous Relations Northern Affairs Canada

Client:
BluMetric Environmental Inc.

Key Services Provided:

• Field Inspection
• Existing Design Review
• Long-term Monitoring Reporting

Four properties comprise the Great Slave Lake area mines sites under this project: Outpost Island Mine, Blanchet Island Mine, Wilson Island Mine and the Waldron River Property. The properties were mined for various metals before being abandoned several decades ago. The properties were remediated in 2015 and a long-term monitoring plan has been implemented to confirm the administrative and engineered controls meant to manage the site risks are performing according to design.

TREK completed the geotechnical site inspections at the four historical mine sites along the east arm of Great Slave Lake as part of the 5-year long-term monitoring plan. The inspections involved assessing the performance of administrative and engineered controls that were established during remedial works such as engineered covers, mine shaft or adit closures, borrow areas, historical mine areas and tailings deposits. TREK assisted in developing the work plan to account for difficult site access, logistics in remote areas of Canada’s north and develop safety procedures to ensure the successful completion of the work. Following the inspections, TREK provided recommendations for controls that did not meet design intents such as measures to reduce erosion, backfill areas of settlement or reduce animal access all while considering the remote nature of the sites.

Owner:
Northwest Territories Power Corporation (NTPC)

Client:
Ampjack Industries Ltd.

Key Services Provided:

• Information Review and Terrain Assessment
• Sub-surface Investigations
• Laboratory Testing
• Foundation Design
• Construction Recommendations

The existing L-150 transmission line was composed of 801 guyed-Y transmission towers spanning 285 km from the Twin Gorges Generation Station to the Pine Point mine in the Northwest Territories. The line traverses varied terrain ranging from wetland swamps to exposed bedrock and crosses several water features (the Slave and Talston Rivers along with numerous other small streams, lakes, and bogs). The line was originally constructed in the 1960s and was experiencing issues with foundations and anchors.

TREK Geotechnical carried out an aerial photo terrain assessment and provided preliminary recommendations for foundation repairs and replacements. This was followed by sub-surface investigations in January and April of 2023 where sixty test holes were drilled in order to evaluate tower foundation alternatives. Recommendations were provided for micropiles, helical piles, and Manta Ray anchors.

Client:
Sison Blackburn Consulting

Key Services Provided:

• Drain Hydrology
• Hydraulic Assessment
• Autodesk Sanitary & Sewer Analysis
• Erosion and Sediment Control

TREK Geotechnical was retained by SBC to provide a hydrologic and hydraulic analyses and design of the Deerfield Drain diversion to allow for the development in the corner of the Old Tom Road/Loewen Blvd intersection as part of the Loewen Blvd North Development (LBND) within the City of Steinbach, MB. The proposed development will require the infill of the local drain bed and the diversion of the Deerfield Drain. Autodesk Stormwater and Sanitary Analysis software was used to develop a diversion option consisting of 519 m of 1.35 m diameter reinforced concrete culverts and four (4) manholes. The proposed RCP culvert diversion alignment and manhole locations were delineated in ArcGIS and incorporated into Autodesk Stormwater and Sanitary Analysis. Different model scenarios were simulated to determine the required pipe diameter necessary to prevent surcharging in the manholes and flooding of the roadway and adjacent properties.

Owner:
City of Winnipeg

Client:
Tetra Tech

Key Services Provided:

• Design and Construction Inspection of Riverbank Stabilization works
• Design of Deep Foundations, and Construction services

The Ness Avenue crossing over Sturgeon Creek is a vital connection between the Crestview and Heritage Park neighbourhoods in Winnipeg. In 2015 and 2016, the project included construction of a new bridge and active transportation pathway at the crossing, as well as stabilization works, including a gravity retaining wall, bank re-grading, and riprap placement to improve creekbank stability and protect the bank against future erosion. The new crossing has created a pedestrian friendly transportation option and a stable bridge design to accommodate many years of use.

TREK Geotechnical was the geotechnical consultant for the project and played a key role in the design of the bridge foundations and creekbank stabilization measures. TREK completed a sub-surface investigation for the project and provided geotechnical engineering support services during the design and construction phases.

Owner:
RM of West St. Paul Village of Winnipegosis

Key Services Provided:

• Evaluation of Temporary Earth Dikes for Feasibility of Permanent Upgrading, Preliminary and Detailed Design of Permanent Upgrades
• Development of Operation and Maintenance Manual for Permanent Dikes
• Development of Guidelines for use of Supplemental Temporary Flood Protection Products

The 2011 flood on the Red and Assiniboine Rivers required operation of the Portage Diversion and other water control structures at record levels and still resulted in widespread flooding and displacement of residents of numerous communities. Following the flood the Province of Manitoba initiated the Community Flood Protection Program to provide permanent protection to communities affected in the 2011 flood.

TREK Geotechnical was retained to provide flood protection options including flood management plans that incorporated both permanent flood protection works and supplemental temporary flood protection options. TREK provided preliminary design for permanent upgrading of emergency temporary clay dikes in the community of West St. Paul and Winnipegosis. Additional services included detailed design and contract administration for construction of permanent earth fill dikes.