Projects

The bridge on HWY 40 over Wapiti River, BF 74228, is comprised of four (4) lines of built-up steel plate girders spanning 33.5 m – 48.8 m – 61.6 m – 48.8 m – 33.5 m. GeoMetrix worked with the General Contractor, Ardy Rigging, to provide an engineered bridge jacking procedure and jacking drawings for lifting the girders which required a bearing reset or replacement. Procedures were also developed for the contractor to complete various Crack Induced Fracture (CIF) steel repairs including: crack repair of upper and lower longitudinal stiffeners, repair of gusset plate connections to girder web, and coring relief holes into web at intermediate and bearing stiffeners.

GeoMetrix was retained by the contractor (Ardy Rigging) to undertake an evaluation of the existing structure (Bridge Structure 9 FGP STR 1.7) ability to bear lateral loads while undergoing jacking. The existing structure is a horizontally curved one lane bridge, having five bearings, each secured by two anchor bolts. The evaluation was undertaken to determine if the remaining bearings would be able to withstand lateral loads due to traffic and wind, while up to four of the bearings and anchor bolts were no longer resisting lateral loads while being replaced.

The Gaetz Ave over Highway 2 Bridge (BF 75331) was constructed in 2018. The bridge is a curved two span (83-77 m) steel plate girder superstructure supported on concrete substructures. During construction of the fingerplate joint, it was found to be outside of Alberta Transportation tolerance limits. Flatiron retained GeoMetrix to provide engineering support during jacking to permit resetting and heat treatment of the finger joints.

GeoMetrix evaluated the site conditions for jacking including available space on the abutment seats, jacking alignment and position, shim plate requirements, and lift height required. Structural analysis was carried out to see the effect on the superstructure of a 25 mm lift at the abutment, which is much higher than the permissible lifting limit on the design drawings (3 mm). The jacking procedure and jacking drawings were tailored for the required conditions to permit the 25 mm lift at each abutment.

An additional lane was proposed for the Wedgewood Creek Bridge(s) on Anthony Henday Drive as part of the overall south leg widening. To widen the 41.5 – 52.0 – 41.5 m continuous span bridge(s) over Wedgewood Creek an additional line of precast NU girders were required on each bridge. The erection scheme included a Liebheer LTM 1130-5.1 centered at the abutment or pier, and the new NU Girder transported on a 132 to 156 tonne trailer configuration. A two dimensional grillage model was created to verify the live load distribution factors for the PS type loading. A bridge load evaluation report was prepared for the precast prestressed NU girder bridge.

The contractor also required heavy cranes on the bridge deck to hoist material down to the valley and to place concrete from the bridge deck for the new pier and abutment construction. The work plan required various cranes and construction traffic in the designated work zone lane combined with Normal Traffic in the adjacent lane. The results from the live load analysis were evaluated though Section 14 of CAN/CSA S6-14 to verify the load rating which indicated the contractors proposed work plans could be undertaken within the bridge live load capacity.

GeoMetrix was retained by Ardy Rigging on this large Constraint Induced Fracture (CIF) project to undertake a bridge load evaluation to accommodate the contractors temporary works as well as existing traffic on the bridge simultaneously. The existing structure on Highway 831 is a two girder bridge over the North Saskatchewan River and is therefore considered fracture critical. Repairs were required to the CIF critical details to prevent propagation of fatigue cracks.

A bridge load evaluation was undertaken to determine the remaining load capacity available to support the scaffolding, miscellaneous equipment, and personnel while maintaining traffic on the bridge at all times during the repairs.

GeoMetrix was retained by Mammoet Canada to perform a Bridge Load Feasibility Study for a Splitter Permit Load Transported on Bunked 4- File 26 Line Conventional Scheuerle Configuration Crossing Nine Bridges on the Transport Route between Edmonton, AB and Redwater, AB. From this load evaluation it was found that the North Saskatchewan River Bridge (NSRB) on Highway 29, at Duvernay (BF71116) required strengthening for the load. The bridge consist of 76.5 – 77.0 – 77.0 – 76.5, continuous spans and a 12.2 m simple span (North end). The girders are supported on mass concrete piers and conventional abutments. GeoMetrix designed a post tension system using Dywidag bars to provide enough post tensioning moment effect to counteract the additional live load from the permit load. In conjunction with the strengthening, the analysis of the North Saskatchewan River Bridge (BF71116) assumed that the permit load may have an accident eccentricity of up to 0.60 m as per typical conditions for PC type loading. GeoMetrix considered limiting this eccentricity to 0.30 m during crossing via use of cones on the bridge. Using this approach, the moment distribution factor was reduced from 0.32 to 0.298.

GeoMetrix was retained by the prime contractor undertaking the rehabilitation (painting, strengthening, corrosion attention, etc) of this major bridge over the Little Smoky River on Highway 49 (BF74440) to complete a load capacity evaluated of the structure as well as any required strengthening to allow the bridge to meet rehabilitation loading demands. The existing bridge is a six span structure comprised of three deck truss spans, two riveted girder spans and a rolled beam span. Due to slope movements on the south side of the river a major rehab of the bridge was completed in 2000.

GeoMetrix completed bridge load capacity evaluation of the deck truss and riveted girder spans as well as the detailed engineering to strengthen the truss to accommodate the full containment structure on the truss during re-painting in addition to full traffic loading. The containment structure encloses the truss to prevent lead contamination from entering the river below. This structure increases the cross sectional area of the truss, thereby increasing the lateral loads acting on the trusses. GeoMetrix completed a 3D analysis of the truss to determine the members that needed to be strengthened to accommodate the construction sequence. We provided the design of a variety of new truss members and bracing to prevent failure of the trusses under the increased lateral loading.

GeoMetrix was retained by Mammoet Canada Western (Mammoet) to perform a bridge load evaluation for 18 bridges on the route from Coutts, AB to the Northwest Redwater Upgrader Site near Redwater, AB for transporting a CO₂ Absorber permit vessel in January 2016. The CO₂ Absorber had a GVW of 903 tonnes, which included a 418 tonne payload and was proposed to be transported on a 4-File 12 Front – 12 Rear (12F/12R) bunked Road Style InterCombi Scheuerle Configuration. The bridge load evaluation was undertaken to determine the Live Load Capacity Factor (LLCF) for major components to determine if the PC and PS crossing of the overload vehicle was possible without strengthening the bridges. Bridges on the route included both simple and continuous steel and prestressed/cast-in-place concrete structures. The evaluation was done in accordance with S6-14 and the Alberta Transportation’s Bridge Load Evaluation Manual. The report was accepted by Alberta Transportation without further clarification.

Due to the magnitude of the load, Alberta Transportation requested that GeoMetrix implement a Level 1 Inspection Program for three of bridges on the high load corridor prior to transport of the CO₂ Absorber. GeoMetrix provided a detailed inspection program which was accepted without need for modification.

GeoMetrix was retained by Bidell Gas Compression (Bidell) to perform a bridge load evaluation for the Blueberry River Bridge (B01443) in order to transport a 250 tonne (GVW) compressor permit load on an 84 wheel trailer configuration. The existing bridge on Beatton River Road is a single lane, seven span bridge, with nine lines of a combination of Bailey truss lines on the largest mid span, and Douglas Fir stringers on the remaining spans. The deck consisted of Douglas Fir timbers.  In-depth research had to be done in order to determine the effectiveness of the non-composite timber deck bracing to laterally brace the lines of Bailey trusses. The bridge load evaluation was undertaken to determine the Live Load Capacity Factor (LLCF) for major components to determine if the PC and PS crossing of the overload vehicle was possible without strengthening of the bridge being required. The evaluation was done in accordance with S6-14 and the BC MOTI Terms of Reference. Drawings containing sufficient details to perform a bridge load rating does not exist, thus an onsite measurement of every member of the bridge had to be performed. The report was accepted by British Columbia Ministry of Transport & Infrastructure (BC MOTI) without requirements for further clarification and the first of the compressor permit load have successfully arrived at their destination.

GeoMetrix was retained by Mammoet Canada to perform a Bridge Load Feasibility Study for a Splitter Permit Load Transported on Bunked 4- File 26 Line Conventional Scheuerle Configuration Crossing Nine Bridges on the Transport Route between Edmonton, AB and Redwater, AB. From this load evaluation it was found that the Namepi Creek Bridge on Highway 29, at Radway (BF74397) required strengthening for the load. The Namepi bridge consist of 6.0 – 10.0 – 6.0, Type SM (prestressed concrete box girder) simple spans with a 13.8m clear roadway. The girders are supported on timber piles supporting timber seats at the piers, and timber piles supporting timber seats at the abutments. GeoMetrix designed a truss diaphragm system to brace the existing timber bents and reinforce the structure for the proposed permit loading. The truss system was used to connect the timber piles so they behave more rigidly as a unit for sharing the load across the entire bent system.

COWI as the prime consultant teamed up with GeoMetrix and won the rehabilitation of three bridges at the Crowchild Trail and Bow Trail Interchanges in Calgary. The bridges include: 1) Westbound Memorial Drive over Crowchild Trail, 2) Crowchild Trail southbound over Bow Trail, and 3) Westbound Bow Trail ramp to southbound Crowchild Trail over Bow Trail. The two span or multi-span prestressed concrete box girder bridges experienced serious deterioration on the deck, along the barriers, and at the girder ends under the expansion joints. The scope of rehabilitation includes deck partial depth and full depth repairs, girder repairs, joint replacement, bearing replacement, and barrier replacement. GeoMetrix provided construction inspection and contract administration services. Construction started in July 2019 and it is expected to be completed by end of October 2020.

Alberta Transportation retained GeoMetrix for bridge inspection, survey, preliminary engineering, detailed design, and construction services for rehabilitation of the two North Saskatchewan River Bridges on Highway 60 (BF 73694 N/S), near Devon. The primary concern that triggered the rehabilitation for the bridges was deterioration of the finger joints and deck overlay. After a thorough bridge inspection and careful study of the record drawings GeoMetrix identified the root of the fatigue problem: the rocker bearings can only accommodate horizontal movement while the finger joints are installed along 2.5% vertical grade. This finding has been confirmed with mathematical analysis and field measurements.  This incompatibility causes high fatigue stresses in the finger plates. GeoMetrix proposed a new modular deck joint system to replace the fatigued and failing finger joint, and a new Hot Rubberized Membrane and Asphalt overlay system.

GeoMetrix was retained by the prime contractor undertaking the rehabilitation (painting, strengthening, corrosion attention, etc) of this major bridge over the Little Smoky River on Highway 49 (BF74440) to complete a load capacity evaluated of the structure as well as any required strengthening to allow the bridge to meet rehabilitation loading demands. The existing bridge is a six span structure comprised of three deck truss spans, two riveted girder spans and a rolled beam span. Due to slope movements on the south side of the river a major rehab of the bridge was completed in 2000.

GeoMetrix completed bridge load capacity evaluation of the deck truss and riveted girder spans as well as the detailed engineering to strengthen the truss to accommodate the full containment structure on the truss during re-painting in addition to full traffic loading. The containment structure encloses the truss to prevent lead contamination from entering the river below. This structure increases the cross sectional area of the truss, thereby increasing the lateral loads acting on the trusses. GeoMetrix completed a 3D analysis of the truss to determine the members that needed to be strengthened to accommodate the construction sequence. We provided the design of a variety of new truss members and bracing to prevent failure of the trusses under the increased lateral loading.

GeoMetrix was retained by Saskatchewan Ministry of Highways and Infrastructure (c/o Focus Corporation) to provide bridge engineering services for this bridge rehabilitation project for the Saskatchewan Ministry of Highways and Infrastructure. The bridge is a three span voided slab originally constructed in 1967. A detailed inspection, assessment, and testing program was conducted to develop an appropriate rehabilitation program for the bridge to extend its service life.

A partial depth repair was previously completed in 1995 that required the detailed analysis of the structure to confirm that the repairs did not adversely affect the moment distribution of the structure due to the change in stiffness. GeoMetrix also completed the design of barrier upgrades above and below the bridge to bridge the barriers systems up to current roadside design standards. This included adding steel struts to the outside of the bridge curbs to carry the new barrier impact loads and a concrete tall wall under the bridge to protect vehicles from the pier shafts.

GeoMetrix was retained as the prime consultant for the deck rehabilitation of bridge BF 71613 over Bullpound Creek, West of Hanna.  The bridge is comprised of three simple spans consisting of Type VS concrete girders. The girders are supported on concrete seats on H-piles at the abutments, and on concrete caps on concrete filled steel pipe piles at the pier locations.  The preliminary design phase consisted of a thorough site reconnaissance program including a detailed visual inspection, bridge measurement and hammer soundings.  Rehabilitation of the bridge includes: deck replacement with a reinforced concrete deck overlay, girder rehabilitation focusing primarily on the addressing the spalls along the curb girders, modification/replacement of bridge railing and the replacement of the approach guardrail, upgrading of drainage plan and partial depth repairs to concrete substructure at pier locations, and deck testing.

Hagwilget Bridge is on the New Hazelton High Level Road approximately 2 km north of Highway 16 in northern British Columbia. It is a suspension bridge over the Hagwilget Canyon on the Bulkey River, at the Wet’suwet’en village of Hagwilget, British Columbia. The bridge is a one-lane vehicle and pedestrian bridge and was constructed in 1931, and later reinforced in 1990. The east approach span is 12 m in length, the centre span is 140 m, and the west approach span is 44 m over several bents for a total deck length of 196 meters.

GeoMetrix was retained by the contractor (Ardy Rigging) to manage all Quality Control related activities pertaining to the rehabilitation and jacking procedures. GeoMetrix prepared Quality Control (QC) Documents in accordance with the BC MoTI SP 1.17 and SS 101.02.03(i). GeoMetrix was responsible for creating a QC plan for Contract-Specific steel rehabilitation work, providing details for means, methods and frequencies of quality control measures. GeoMetrix was also responsible for providing supervision, equipment inspections and training of contractor crews. Supervision of the calibration of the hydraulic jacks for the hydraulic jacking and destressing QC was pertinent to sign off on all hydraulic jacking check sheets. The rehabilitation of the Hagwilget suspension bridge won Ardy Rigging a Ministry Award of Excellence for their attention to detail and successful execution of the work on this high profile project.

GeoMetrix was retained by the prime contractor to provide construction engineering services for this major bridge rehabilitation over the Athabasca River. The existing bridge is a railway truss originally constructed in 1913 that was converted into a highway bridge in 1963 with the addition of precast concrete stringers. Due to deterioration the exterior stringers and barriers are being removed and replaced with wider precast panels to improve the roadways function standard. Construction engineering services included providing engineered drawings for the placement of barriers on the bridge that could withstand vehicle impact forces without excessive deflection into the work zone and off the exposed edge of the bridge. GeoMetrix also completed the engineered drawings for the demolition of the existing HC stringers and barriers that required placement of a picker truck and trailer on the bridge to remove and off load the deteriorated components. The crane erection procedure to install the new precast panels was also engineered and required the placement of a 110 tonne crane on the bridge to complete the panel erection. GeoMetrix also provided engineered expansion joint drawings for a revised alternate to expedite the construction schedule.

GeoMetrix was retained by MacLab & Midwest Property Management as the prime consultant for the rehabilitation of this two-span private bridge over Bellamy Hill Road.  The bridge serves as the primary port of entry to the plaza level of the Coast Edmonton House hotel and ties into the 46 storey tower at the 11^th floor.  The bridge consists of five lines of precast concrete ‘FC’ bridge girders forming the main part of the bridge.  The bridge widens as it approaches the plaza level of the tower with precast concrete box girders flaring a 30° angle.  The preliminary design phase consisted of a thorough site reconnaissance program including a detailed visual inspection, hammer soundings, chain drag delamination survey, chloride sampling, and exposing of unbonded post-tensioned strands to test for corrosion and tension loss.  Rehabilitation of the bridge and plaza area included: installation of a waterproofing system, replacing all deck joints and the precast concrete cladded steel railings, partial depth concrete repairs on both superstructure and substructure, and replacement of elastomeric bearings.

GeoMetrix was retained by Alberta Transportation as the prime consultant for the deck rehabilitation of bridge BF 02156 over Beaver Hill Creek, just North of Lamont.  The bridge is comprised of three simple spans consisting of Type SM concrete girders. The girders are supported on concrete seats on H-piles at the abutments, and on concrete caps on concrete filled steel pipe piles at the pier locations.  The preliminary design phase consisted of a thorough site reconnaissance program including a detailed visual inspection, bridge measurement and hammer soundings.  Rehabilitation of the bridge included: deck replacement with a reinforced concrete deck overlay, girder rehabilitation focusing primarily on the addressing the spalls along the curb girders, replacement of bridge railing and the approach rail guard, upgrading of drainage plan and partial depth repairs to concrete substructure at pier locations.

GeoMetrix was retained by Alberta Transportation as the prime consultant on replacement of one standard bridge on Highway 49 (BF74652) near Donnelly and three culverts (BF86266, BF78010, and BF78643) on Highway 33 near Swan Hills, Highway 64 near Hines Creek, and Highway 33 near Kinuso, respectively. The scope of work includes preliminary engineering, detailed design and tender preparation, construction administration, and post construction services. GeoMetrix carried out bridge inspections and noticed the challenge of fish passage accommodation at site of BF86266 and BF78643. The project is at Preliminary engineering phase.

GeoMetrix was retained by Saskatchewan Ministry of Highways and Infrastructure (MHI) as the prime consultant for the bridge replacement design of an existing timber bridge structure on Highway 994 over Kinoosao Bay, near Kinoosao, Saskatchewan.

GeoMetrix designed a 9m single span bridge to replace the existing bridge in order to update the structure and provide a larger hydraulic opening. The newly designed superstructure consists of 9m shear connected precast box girders having no wearing surface. GeoMetrix provided the detailed design of the piles in addition to capacity checks on Ministry standard abutment caps, timber backwalls, and precast girders. Tender package preparation including support to the Ministry during the tender period was also provided. GeoMetrix also provided contract administration and field review services during construction. The construction was completed in Spring of 2018.

GeoMetrix was retained by City of Edmonton (CoE) as the prime consultant on this bridge replacement project. The existing bridge is a single span (8.5m) VS girder superstructure supported on timber substructure. It is located within the sensitive North Saskatchewan River Valley. The stringent environmental regulations placed a big challenge to the design team. To replace the bridge GeoMetrix proposed AT standard 10m SLW girder superstructure with cast-in-place integral abutments. The site is highly corrosive. The piles are designed to include sacrificial loss of the pile section. GeoMetrix provided services during tender and construction including contract administration and field inspection. The project was complete in 2017.

In late July 2019, a flood washed out Brady Creek Culvert (BF 77470) and Lily Creek Culvert (BF 77469) on Highway 88 near Slave Lake. GeoMetrix was retained by Alberta Transportation to assess the site conditions and provide engineering recommendations on emergency repairs. Considering site conditions, environmental restrains, constructability and schedule a single span (30 m) NU-girder bridge was recommended for both crossings. The project was divided into two phases to expedite a temporary structure to open the roadway: Phase 1 is to complete girder fabrication, detour construction, headslope shear key construction, debris removal, and channel realignment. Phase 2 is bridge construction planned for summer of 2020.

GeoMetrix was retained by the Saskatchewan Ministry of Highways and Infrastructure (MHI) as the prime consultant for the bridge replacement design of an existing two span timber bridge over the Eagle Creek tributary. The existing timber bridge was both structurally and functionally obsolete and required replacement with a wider structure with a reduced maintenance demand.

GeoMetrix investigated replacing the bridge with a triple barrel culvert or a single span precast concrete box girder bridge. The single span bridge was chosen by the owner and the detailed design of the precast abutment caps, precast backwall panels, and precast wingwall panels were completed. The design of the piles and guardrail was also included within our scope. GeoMetrix also completed the construction drawings and tender documents to Saskatchewan Ministry of Highways and Infrastructure standards.

GeoMetrix was retained by Saskatchewan Ministry of Highways and Infrastructure (MHI) as the prime consultant for the bridge replacement design of an existing 6m long single span timber bridge over Bisset Creek. The existing timber bridge was both structurally and functionally obsolete and required replacement with a wider structure with a reduced maintenance demand.

GeoMetrix designed a 9m single span bridge to replace the existing bridge that allowed for an increase in the hydraulic opening compared to the existing bridge. The superstructure consists of 9m shear connected precast box girders with an asphalt wearing surface. GeoMetrix provided the detailed design of precast abutment caps, and timber backwalls and wingwalls, based on Ministry standards. The design of the driven piles and guardrail was also included within our scope. Tender package preparation including support to the Ministry during the tender period was also provided.

GeoMetrix was retained by the prime consultant as the bridge sub-consultant on this bridge replacement project for the City of Edmonton. A new 42m clear span integral abutment bridge utilizing steel plate girders was designed to cross Blackmud Creek in south Edmonton. The bridge replaced a 50 year old timber trestle bridge that was at the end of its lifespan. Utilizing a clear span bridge over the creek was chosen to minimize the environmental impacts of the creek crossing. GeoMetrix provided preliminary engineering, detailed design, tender package preparation, and construction administration for the project.

AECOM retained GeoMetrix for Independent Design Review (IDR) on a total of twenty bridge structures that comprise the West Calgary Ring Road (WCRR) expansion. An independent design review was required by Alberta Transportation for these new bridge structures. The bridge structures consisted of single span skewed steel plate girder bridges, prestressed NU girder bridges, and post tensioned two span NU girder bridges. GeoMetrix IDR scope also included detailed design review for various retaining walls and MSE walls, pot bearings, and overhead sign structures.

EllisDon retained GeoMetrix for precast plant inspection during fabrication of the NU girders for the West Calgary Ring Road expansion. GeoMetrix performed daily inspections and documented the NU Girder fabrication in accordance with Alberta Transportation requirements. The inspections include the following process: 1) Form geometry, 2) Inserts, reinforcement, WWM, prestressing and post tension duct layout, 3) Observation of stressing and review of elongation and gauge pressure during stressing, 4) Review testing results for concrete plastic properties and observation of concrete placement, 5) Strand release, 6) Curing records, 7) Final finishing and final product inspection.

GeoMetrix was retained by the prime consultant for this major bridge rehabilitation over the Athabasca River. The existing bridge is a railway truss originally constructed in 1913 that was converted into a highway bridge in 1963 with the addition of precast concrete stringers. Due to deterioration the exterior stringers and barriers are being removed and replaced with wider precast panels to improve the roadways function standard. GeoMetrix performed the independent design check of all new superstructure components. This included checking the new precast panels for gravity loads and barrier impact loading as well as a review of the construction details such as dowels and keeper bars. GeoMetrix also performed a bridge load evaluation of the new panels, existing truss members, and existing bent members for the new wider configuration. This included permit vehicles, the revised design vehicle, and well as a number of owner superload vehicles.

As part of the City of Edmonton’s Valley Line Southeast expansion project, an existing through truss bridge carrying pedestrian traffic over Connors Road in Edmonton was due for replacement. The new Kâhasinîskâk bridge, a sinusoidal shaped through steel plate box girder bridge, was designed by the TransEd LRT Group to replace it. Supreme Steel was responsible for fabrication, delivery and erection of the new steel bridge superstructure.

GeoMetrix was retained by Supreme Steel to design crane outrigger mats for the cranes used in removal of the existing truss bridge, and for erection of the new Kâhasinîskâk pedestrian bridge. The cranes were positioned directly over various City of Edmonton buried utilities including: PVC Drainage Pipes from 0.200 m to 0.450 m diameter, and a 0.762 m diameter Steel Water Main Pipe. GeoMetrix assessed the ground pressure experienced by the utilities and reviewed their conduit (PVC or Steel Pipe) for structural integrity and ability to support the added crane live load. The rig mat size and structural design was tailored accordingly to ensure a safe transfer of loading to the underground utilities.

GeoMetrix was retained by Select Engineering to coordinate the design of this bowstring pedestrian bridge for the Aspen Trail Community in Sherwood Park, Alberta. This 15 m long bridge connects the shared use path over a drainage channel which is connected to a nearby storm water pond. The design of substructure was composed of concrete abutments on cast-in-place concrete piles. GeoMetrix also provided construction review services to confirm that the construction was in accordance with the engineered drawings and specifications.

GeoMetrix was retained by Tetra Tech to provide construction inspection and administration services for the construction of the 212 Ave over Deerfoot Trail overpass (BF82500). The new two span bridge, 45.0m – 48.0m, consists of nine (9) lines of 2.4 m deep post-tensioned concrete NU girders.  Engineering services provided included 1) shop drawing submission review for structural components, 2) precast NU girder fabrication inspection, and 3) full time bridge construction inspection and reporting.

This project was a finalist for the Alberta CISC steel design awards in 2011. It involved expansion of Supreme Steel’s Bridge Division plant in east Edmonton to double the facility’s capacity. One of the challenges was keeping the existing crane runway fully operational during construction. The project consisted of designing a new crane runway along the south side of the existing shop to support four 40-tonne cranes running in tandem. It also included the design of a building structure to enclose the west end of the existing crane runway, expanding the enclosed area by 50 percent. Finally, a 100-foot opening was created between the west end of the new crane runway and the existing crane runway to allow passage of fabricated built-up plate girders from one runway to the next in their production cycle. Services during construction were also provided for this project.

GeoMetrix was appointed by Rockliff Pierzchajlo Kroman Architects to undertake the structural design and consulting services for a new 4-storey building in Millwoods (Edmonton, AB). The project consists of approximately 72 lodge residents and 93 independent living apartments along with the necessary support spaces on the main and upper floors, and a partial basement with underground parking.

This project started as a conventional Design-Bid-Build delivery model.  However near the end of the Schematic Design Phase the Owner decided to finish the project using an Integrated Project Delivery (IPD) model. Several structural framing systems were evaluated during the collaborative validation phase of this IPD project. The final design consisted of a structural steel superstructure on concrete shallow footings. The project was delivered using 3D Revit modeling and BIM.

This building is a two story seniors lodge with a gross floor area of 2070 square meters located in Lac La Biche, AB. The building occupancy classification includes Group B Care and a Group B3 Apartment – Care Occupancy for both independent supportive living and designated supportive living. The building is framed from timber and is considered combustible, and includes a 2 hour rated masonry firewall, dividing the structure near the central elevator core.

GeoMetrix was appointed by Rockliff Pierzchajlo Kroman Architects to undertake the structural design and construction review services for the new two-storey Seniors Lodging in Lac La Biche. The project team included a general contractor early in the design phase to facilitate additional reviews and input on construction methodology and overall foundation and framing type.

Structural components of the design phase include: masonry fire separation wall, concrete elevator core, post and beam framing consisting of steel columns and timber beams, and timber framing for floor and roof joists, roof trusses, shear walls, and diaphragms. The front entrance canopy crosses the firewall; thus, had to be made non-combustible and is framed of cold form steel and structural steel.

GeoMetrix was appointed by PK Developments and Kerr Interior Systems to undertake the structural design and construction review services for both the substructure and superstructure of this two storey residential building using load bearing steel stud framing. A main challenge for the design was the desire for full height windows with a shallow plenum space. This constraint prevented conventional header beams to be used over the windows.  To solve this issue, a box beam was used to cap the ends of the light gauge steel floor joists.  Another unique feature of this building is the hanging stairs providing access to the roof patio.  This unique design involved designing the steel studs framing above the stairs as a hanger system, giving the appearance of floating stairs.

GeoMetrix provided Rockliff Pierzchajlo Kroman Architects Ltd with structural engineering design & consulting services for a new seniors supportive living building in Whitehorse, YK. The 5 story building for Points West Living (PWL), located in the City of Whitehorse, Yukon, will provide 58 units of supportive living. The majority of building amenities will be situated on the main floor, with underground parking. The building consists of steel columns, braced frames and a Gerber beam system supporting concrete slab on metal deck. The steel frame is supported on a concrete roof slab with transfer beams on concrete columns, and spread footings. High seismic activity in the Yukon required a detailed response spectrum analysis and proper detailing of the seismic resisting system. The parkade layout and the upper living suite layout required offset columns and large transfer beams in the parkade roof slab. Differential stiffness between interior column spread and exterior wall strip footing foundations were also evaluated and ground improvements were established to minimize differential settlements and resulting load effects on the transfer beams.

GeoMetrix was appointed by Kerr Interior Systems to undertake the structural design and construction review services for wind bearing exterior steel stud walls for this new institutional facility at the NAIT campus in Edmonton, AB.  The building was comprised of two wings – a 1 story building with full height steel studs complete with roof parapets; and a second wing comprised of a 4 story structure with infill steel studs including a rooftop mechanical penthouse and roof parapets.  Flexibility of the parapets was considered one of the main design challenges where a series of short buttress walls perpendicular to the parapet at regular intervals was used to improve lateral stiffness.

GeoMetrix provided structural assessment services for an existing 40’ by 64’ building in a drainage yard owned by SUNCOR. The current building does not meet the Alberta Building Code and GeoMetrix designed the modification necessary to bring the building up to the current code requirements.

GeoMetrix was appointed by Kerr Interior Systems to undertake the structural design of the penthouse level for a new 5-storey concrete framed building in the Bonnie Doon community area of Edmonton, AB.  Design of this project involved both load bearing and wind bearing steel stud walls as well as custom light guage steel trusses and fascia beams for the roof structure.  GeoMetrix also performed site visits and provided engineering support during construction.

The project involved the development of a 45 building complex within the Municipality of Jasper. GeoMetrix provided structural design, construction reviews, and Alberta Building Code schedules for all of the units. The project also included the installation of retaining walls.

This building is a two story library addition to the Aurora Charter School. The building is framed with structural steel beams and columns supported on cast in place end bearing piles friction piles and grade beams. The second floor diaphragm consists of OWSJ supporting concrete on metal deck, and the roof framing is OWSJ supporting metal deck.

GeoMetrix was retained by Burgess Bredo Architects to undertake the structural design and construction review services for the new two-story library addition on Aurora Charter School. Renovations include approximately 736 square meter two story classroom and library addition, and approximately 180 square meters of second story addition on the existing roof structure.

Structural components of the design phase include: foundation (concrete piles and grade beam), structural steel beam and columns, floor and roof diaphragms, assessment of existing structure to take new loads, strengthening of existing structure including CFRP (Carbon Fiber Reinforced Polymer) wrap for strengthening of shear and longitudinal reinforcement on existing precast prestressed double tee girders, and masonry wall design. The renovation also required a new snowshed over the existing roof structure to reduce loading from snow shadows.

An existing 3.0m diameter x 30.5m long Corrugated Steel Pipe (CSP) culvert had to be replaced due to sagging of the roof as well as perforated corrosion on the floor. GeoMetrix was retained as the structural engineering consultant for the CSP replacement design. GeoMetrix also carried out an independent design check of the gabion basket retaining wall used at the culvert inlet.

The existing corrugated steel bin wall system at the inlet was replaced with a stepped gravity retaining wall consisting of Maccaferri Rock-Filled Gabion baskets. A reinforced earth Nilex retaining wall system was originally considered during preliminary design; however, this option was ruled out due to the existing utility cables which would interfere with the geogrid reinforcing layers. The design check of the gabion retaining wall was performed by both manual calculations and GawacWin Engineering Software. Global slope stability was checked by using the program Slope/W to better evaluate the myriad of log spiral failure slope planes.

During a high flow period a bridge size culvert washed out (BF 75043) near Debolt. GeoMetrix was retained by Alberta Transportation to assess the condition, evaluate the hydraulics of the flow, and propose culvert replacement options. The selected alternative was a new 2.4 m diameter x 28 m long CSP culvert. This project was an emergency repair that fell under a BMA (Bridge maintenance agreement) and the highway maintenance contractor was responsible for construction. GeoMetrix provided the new culvert design, guardrail design, construction inspection, field verified quantities and contract administration services during construction.

The Redwillow River Bridge on Highway 722 (BF 08036) superstructure was replaced in 2013.  An unprotected gap between Class 1 riprap and Class 3 riprap might have initiated erosion during a spring flood that caused up to five meter deep erosion along the ditch and the headslope on the southwest corner of the bridge.  An emergency repair was required. Erosion protection measures were investigated including ArmorFlex Articulated Concrete Block , Gabion mat and Class 3 Rip Rap, and DuroMaxx Culvert. The option selected for construction was the Gabion mat due to cost and ease of maintenance and installation. GeoMetrix prepared tender drawings for the proposed erosion control measure and performed construction site inspection and contract administration.

GeoMetrix was retained by Alberta Transportation as the prime consultant on the replacement of BF86321 culvert on Highway 2:54 near High Prairie, AB.  This crossing consists of four 1.2m diameter CSP culverts.  All four existing culverts were demonstrating signs of being under-capacity due to evidence of overflow.  This project is currently in the Preliminary Design phase.  GeoMetrix is currently evaluating three different alternatives to rectify the problem: 1) salvage and repair (i.e. do not improve the hydraulic opening), 2) replace the north set of culverts with a precast concrete bridge consisting of nine SLC-510 precast concrete girders spanning 10.0 m, and 3) replace the north set of culverts with a 3.6 m wide x 2.4 m high x 28.0 m long precast concrete box culvert.

The project involved the detailed inspection of an existing water reservoir to determine the condition of the concrete structure. GeoMetrix conducted a detailed inspection of the exterior and interior of the reservoir utilizing divers and a remote operated vehicle to determine the existing condition of the reservoir.

GeoMetrix was retained to provide structural design of an intersection treatment crossing slab on Highway 770. The slab needed to accommodate a large mining shovel without damage to the intersection. GeoMetrix provided structural design including construction drawings for the project.

The project involved the installation of a FAAST de-icing system on Highway 63 over the Athabasca River in Northern Alberta. GeoMetrix was retained by the successful contractor to provide structural design including construction drawings of the pumphouse. The building was designed to accommodate the mechanical installations (pumps, tanks, monitoring, instrumentation, etc.) required for the FAAST system. Services also include foundation design for a tower holding instrumentation related to the deployment of the FAAST system.

GeoMetrix was retained by the City of Wetaskiwin to perform an Independent Design Review (IDR) of an existing roundabout foundation including: bollard foundation design, sign foundation design, and the foundation of a future monument. The Roundabout located at 50 Avenue and 47 Street in Wetaskiwin was originally constructed in 2013-2014 as part of a revitalization program. GeoMetrix performed a visual review and confirmed the design codes and applicable standards used for the structural design. The as-built foundation type consists of concrete skin friction piles supporting a concrete grade beam or pile cap which support signs, bollards, or future monument structures. The IDR considered the foundation types chosen, alternative foundation times and relative costs and merits of the selected foundation, and confirmed the structural capacity of the proposed foundations.

GeoMetrix provided structural engineering and drafting services for a temporary shoring design to support the concrete roof slab of the Garden Meadows Water Reservoir during beam and slab repairs. The Reservoir is constructed of a concrete roof slab with drop panels spanning between concrete columns. Corbel roof beams are provided at edges if the slab bays to permit expansion at the joints. The Reservoir was showing signs of deterioration at the expansion joints and large spalling was occurring at the roof beam edges. The shoring system was designed to support the concrete roof slab considering the integrity remaining in the roof beams, and to limit cracking of the roof slab during load transfer and deflection. GASS shoring posts at 2.4 m – 2.5 m spacing were used on either side of the roof beam to support the roof slab edge.

GeoMetrix was retained by the developer of a new commercial development in Sherwood Park. The internal road network needed to cross a 24” diameter crude oil pipeline that needed to be protected to ensure there was no damage due to traffic loads. A precast concrete crossing slab system as designed and detailed by GeoMetrix for installation at this location to ensure that the fill and traffic produced no additional loads on the pipeline once installed.

The project involved the installation of a FAAST de-icing system on the southbound lanes of Anthony Henday Drive over the North Saskatchewan River in the City of Edmonton. GeoMetrix was retained by the successful contractor to provide structural design including construction drawings of the pumphouse. The building was designed to accommodate the mechanical installations (pumps, tanks, monitoring, instrumentation, etc.) required for the FAAST system. Services also include foundation design for a tower holding instrumentation related to the deployment of the FAAST system

GeoMetrix was retained by artist Tony Stallard to provide engineering design services in verification of a proposed 3D molecule structure to be displayed at a university building in Florida.  A 3D structural model was created and analyzed to verify structural integrity under self-weight and wind loading. Anchorage devices and cables were used to hang the sculpture from the existing canopy roof.

GeoMetrix was retained by Highline to undertake the design for numerous reinforced concrete monopiles to support light poles, signal warning signs and other various overhead sign structures. Pile loading from the pole supplier was verified by GeoMetrix. The pile design considers a minimum pile length for frost effect, and the vertical, lateral and torsional loading on the pile and soil. GeoMetrix reviewed the pile structural capacity, minimum reinforcement requirements, and the geotechnical capacity of the soil for the imposed load combinations. Pile design pile design drawings were developed to provide the require pile details and to state any design assumptions.

GeoMetrix was retained to provide structural engineering for this landscape improvement project in Sherwood Park, Alberta. Structural design of pole foundations, retaining walls, stairs, and other miscellaneous aspects of this projects were completed.

GeoMetrix was appointed by City of St. Albert to undertake the design for a pedestal to mount a R.C.A.F. Lockheed T-333AN Silver Star 3 (T-bird). The design included: concrete mono pile, steel pipe shaft pedestal to support the airplane, concrete anchorage design, and connection design to mount the airplane on top of the pedestal. Various options for the pedestal design were first presented to the Client using SketchUp for 3D visualization and confirmation of clearances in the adjacent parking lot. Detail CAD drawings were developed and presented to support design and assumptions. GeoMetrix also provided services during construction to review and monitor: pile installation, lifting procedures, installation of the aircraft on the new pedestal, and overall site restoration.

The City of St.Albert retained GeoMetrix to provide an independent structural engineering review service for the upgrades to a sports facility. It was found that strengthening of a previously installed scoreboard as well as bleacher seating was required to ensure stability of the installations.

GeoMetrix has been involved in the City of St. Albert’s public arts program since its inception. We have assisted with the installation of numerous pieces of art across the City. GeoMetrix completes a structural assessment of each building that art is connected to ensure that there are no structural concerns with the additional load.

GeoMetrix was retained to provide structural engineering and construction review services for the installation of an inclined speed ramp at the track and field facility in St. Albert, Alberta.

GeoMetrix was retained by Almita, the successful design-build contractor, for this large power transmission line project. GeoMetrix provided structural engineering for steel ‘grillage’ foundation frames to support the large transmission monopoles up to 38m in height. A finite element analysis program was used to capture the complex geometry and fabrication details and specific anchorage arrangement.  As part of the design, deflection and rotational deformations of the grillage frames were reviewed against client requirements to ensure functionality.

GeoMetrix is frequently retained by the Canadian National Railway to prepare timber tie re-deck drawings for open deck plate girder or truss bridges. The typical scope of work includes:

– Survey and field review.

– Processing and desktop review of survey data.

– Alignment iterations in accordance with CN’s track standards, structural limitations, Transport Canada requirements, and AREMA guidelines.

– Preparing re-deck drawings for the bridge (Timber ties) including walkway addition if needed.

GeoMetrix is frequently retained by the Canadian National Railway for rehabilitation of various steel bridges in Western Canada. Rehabilitation scope typically includes preparation of an erection diagram or general arrangement drawing, assembly details, and shop drawing details of the affected members. Typical rehabilitation work includes:

-Review of CN’s steel inspection reports and identification of items for rehabilitation.

-Jacking procedures and jacking strengthening design.

-Connection angle replacements.

-Shoe plate or bearing plate replacements.

-Secondary member replacements including: lateral bracing, cross bracing, horizontal and vertical gusset plates.

-Crack member replacement, retrofit or strengthening.

-Primary member strengthening by cover plate addition or new member addition.

-Retrofit traction bracing installations.

GeoMetrix also provides detailed construction procedures to consider key periods where train traffic may not be permitted during the repair work.

GeoMetrix is frequently retained by the Canadian National Railway for the concrete rehabilitation of various bridges in Western Canada. Rehabilitation scope typically includes: 1) Review of CN’s concrete inspection reports and photos for identification of rehabilitation items 2) Detailing and design of reinforcement for concrete repair, and 3) Providing detailed concrete repair drawings and bar list.

GeoMetrix also provides detailed construction procedures to consider key periods where train traffic may not be permitted during the repair work and to consider proper preparation, reinforcement installation, and curing conditions for concrete repair.

GeoMetrix was retained by Browning Design Inc. to prepare a retaining wall design and drawing package for a landscape refresh at Hole #11 of the Black Hawk golf course near Devon, Alberta.

GeoMetrix considered a tied and non-tied back timber pile retaining wall option during the design. The final wall design utilized a steel H-pile embedded in a 0.600 m diameter drilled concrete pile to form a soldier pile wall complete with heavy timber lagging. A non-structural fascia and top cap was added by the architect to produce the desired final look. GeoMetrix performed a site survey, prepared the wall alignment, evaluated the wall height, prepared design drawings for wall options, and reviewed the wall construction including survey, measurement verification, and conformance to construction documents.