Logging trucks required wide lanes and a large clearance box.
The proposal for the Fletcher Forest Service Road Crossing for B.C.'s Department of Transportation and Highways called for a two-lane logging road to pass beneath four lanes of the new Inland Island Highway. Traffic would be heavy-logging trucks requiring wide lanes and a large clearance box. The structure had to be strong, cost effective and come with a 100-year life expectancy.
Strength and stiffness a key benefit according to contractor.
The Super•Cor® High Profile Arch fit the bill. With its triple strength and a stiffness ten times that of conventional plate, there was no need for any internal supports or sizing cables. Brian Martin, superintendent with sub-contractor Newport Structures Ltd., who erected the Super•Cor® arch, found this a key benefit.
"Because the structure was virtually freestanding, we had no need of internal sizing cables or supports. We were able to prefabricate sections on the ground with a small crane and a skeleton crew, reducing manpower requirements and the need for aerial devices. We only needed a large crane when it came time to erect the finished horseshoe structure. Strength of the product and ease of installation certainly make our jobs easier." - Brian Martin, Superintendant, Newport Structures Ltd.
Open-bottom design saved time and money.
Super•Cor®'s strength and stiffness meant that the structure could be bottomless. That resulted in considerable savings in time and money. The Superintendent of the project and a first-time Super•Cor® user was extremely impressed with the strength and safety of the product.
"The whole undertaking went smoothly from start to finish. The stability of the product allowed us to use native 150 mm material for backfilling - definitely the most efficient and economical solution. By the end of the backfilling there was very little movement." - Blair Brandon, Island Highway Constructors (PCL) Project Superintendant
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