Company:
Tensar International
Project Details
Fabric 1
Tensar InterAx NX850 Geogrid
Producer/Manufacturer:
Tensar International Corp.
Primary Use:
Main Fabric
Engineer Company 1
Nebraska DOT
Fabrication Name
Tensar InterAx NX850 Geogrid
Fabrication Company
Tensar International
Subcontractor Name
General Contractor
Subcontractor Company
IHC Scott
Installation Name
Geogrid Installation
Installation Company
Paul Reed Construction & Supply, Inc.
Please describe the project specifications
US Route 385 near Angora, Nebraska was being widened to a two-lane, divided highway, and there were several areas where challenging subgrade conditions were encountered. The native subgrade consisted of a soft, silty clay and a high water table, making construction of the road using traditional methods impossible. Because of the location of the project, importing granular fill was expensive. The InterAx NX850 geogrid was used in conjunction with onsite borrow material, a clean sand fill, to stabilize the soft subgrade and build up the roadway embankment. Using the onsite material not only saved substantial money and kept the project on schedule, but also reduced carbon emissions due to reduced dump truck volume compared to importing granular material.
What is unique or complex about the project?
Nebraska Department of Transportation was searching for innovative solutions that would minimize the added project cost of remediating the soft soils while providing the long-term performance of the new roadway that they expect. The Contractor needed a solution that they could trust would work the first time and keep the project moving.
The extremely soft, saturated subgrade and desire to utilize onsite borrow material provided the opportunity for InterAx NX850 geogrid, a high performance geogrid specifically designed to accommodate a broader range of aggregate fill, to provide value to all stakeholders.
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