Klohn Crippen Berger (KCB) has planned and designed stormwater and utility improvements for the widening of approximately 5 km of a key transportation corridor in SE Calgary. Peak stormwater discharges into the Western Irrigation District canal, from the rapidly-developing 52nd Street SE catchment, must comply with a 1980 moratorium limit. The solution, based on hydraulic and water quality modelling, has been the design and phased construction of 900 m of storm storage trunk and an 8 ha stormwater treatment wetland pond. Stormwater management of a separate roadway catchment, to meet similar downstream flow constraints, involved a retention dry pond and stromwater treatment unit.
KCB designed the overall drainage and underground utility components of the road widening project, including new directionally-drilled canal crossings associated with a new bridge over the irrigation canal. KCB also addressed the management of contaminated groundwater during construction, related to historical industrial land-use and an adjacent sanitary land-fill, on various parts of the project.
- Hydrologic and hydraulic modelling
- Design of stormwater wetland pond
- Design of trunk sewer options
- Geotechnical investigations
- Environmental investigations and assessment
- Detailed utility design, block profiles
- Construction monitoring