Hwy 140 Over CP Rail

Brown & Co. was retained by Dufferin Construction to provide detailed design services for the rehabilitation of the Highway 140 bridge over the CP Rail Line south of Welland as part of a design build contract. The structure is a 5 span, 200 m long steel girder bridge with concrete deck. The work included full confirmation of the existing structure, review of deterioration of the existing piers, bearing replacement, deck replacement, abutment widening and construction phase services. The reconstruction of the deck was staged with one lane remaining open while the other section of the deck was demolished and replaced.
Brown & Co. developed an initial plan for the design-build project followed by full detailed design of the work based on the owner's "30 %" design drawing. Remedial work design for the piers included determination of the areas of the pier requiring concrete removal and replacement, assessing the piers in the deteriorated condition and developing a sequence of work for the safe completion of the pier reconstruction. Redesign work for the abutments included review of foundations at one end for a conversion to semi-integral construction and altering the wingwalls at both ends to accommodate a widened deck. The steel structure was full analysed for the widened deck and current loading using a grillage method to accurately distribute the load from the widened deck. The deck construction included assessment of the differential deflection of the interior and exterior girders during the staged deck replacement. Other work on the project included design for the jacking of the structure, demolition procedures, formwork and roadway protection.
Brown & Co. were the lead consultants on this work. Our subconsultants were BTE who provided the design for the realigned and widened roadway, traffic planning for the construction staging and detours and environmental management, Moon-Matz who provided design for the traffic signals and Patriot Engineering who provided geotechnical design for the confirmation of the existing foundations and embankment stability and settlement analysis.
Dufferin Construction
Province of Ontario
Investigation of existing conditions (update of previous deterioration report) | Detailed Design |Support during construction