Guidelines for highway drainage design in areas of high environmental sensitivity.

The Vancouver Island Highway Project (VIHP) is a major undertaking by the province of British Columbia ($1.2 billion) between Victoria and Campbell River. The segment between Parksville and Campbell River (125 km) is a new highway through forested land which crosses 40 creeks and rivers, each containing valuable salmon and trout habitat. The highway location, being inland, is upstream of agricultural and all domestic water users residing along the existing highway (Highway 19) which generally follows the Georgia Strait shoreline of Vancouver Island. Extensive public consultation early in the planning stage for the project identified that the Inland location would be acceptable to the public if adverse acceptable to the public if adverse environmental impacts to water quality from construction operation of the project were minimized. This paper describes the design and construction of roadway facilities in the Inland location. (A)