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Economical GRS Wire Walls part of Super•Cor bridge replacement

October 23, 2015

structural-plate-arch-grs-bridge

AIL’s GRS Wire Walls (with cobblestone at the face) are looking good – both on the site and on the bottom line of a recent Super•Cor bridge replacement in Armstrong, BC. 

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Fast, flexible and easy to construct
Choosing AIL’s versatile GRS Wire Walls, with locally-stocked components and simplified construction, allowed the project team to keep pace with an accelerated schedule coupled with a fish habitat construction window. Our GRS System employs multiple layers of geotextile to strengthen the retained mass, which allows for a wider variety of native backfill materials – and also serves to keep costs down.

open-bottom-culvert-grs

Due to poor quality foundation soils, the contractor needed to build up the bearing capacity on both sides of the creek to accommodate the structure with BC625 loading. Sheet piling was first used to shore up the area and over 50 wooden poles were pile-driven to support the precast footings and the Super•Cor Arch which was pre-assembled in a staging area and then crane-lifted into place. 

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The project was on time and on budget and The City of Armstrong now has a functional bridge for many years to come.

Project at a glance:

Name: Stepney Cross Road Bridge
Location: Armstrong, BC
Owner: Township of Spallumcheen
Engineer: Urban Systems  
Contractor: Landmark  
Product: Super•Cor Arch with GRS Wire Wall Headwalls
Application: Stream Crossing
Arch Dimensions: Span 11.02 m, Rise 2.45 m, Length 12.9 m 
Installation Time: Two days for structure, 15 days to complete