2023-Z-0063 - Underpass Structure Rehab and Overhead Sign Support Structure Replacement

Project # 2023-E-0063: Rehabilitation of the two underpass structures located at Highway 420/Dorchester Rd (GWP 2239-21-00) and QEW/Mountain Rd (GWP 2204-20-00). The assignment also includes replacement of the existing non-standard parapet wall and bridge mounted overhead signs at Dorchester Rd underpass, replacement of existing long term temporary signals with permanent signals at the west ramp terminal of the Mountain Rd underpass and a new Overhead Sign Support Structure at Glendale Avenue, concrete barrier wall and handrail repairs/replacement on the QEW Toronto bound to Highway 420 EB ramp at approaches to structure (34X-0246/B0), in Niagara Region.