Gravix Gravity Wall Systems
Project Overview
24 ft. Tall, 684 Ft. Long, 11,760 sq. ft. Face Area
Cobb County DOT is working in partnership with the Cumberland Community Improvement District on a number of projects to improve the Cumberland area roadways. One project was to realign the intersection at Windy Hill Rd and Interstate North Parkway.
A retaining wall with traffic barrier was required and an MSE wall was specified. However, in order to install the MSE reinforcement required, two power poles needed to be removed.
CMES in Norcross, GA was awarded the project by Cobb County DOT. They immediately started exploring retaining wall systems that didn’t require the power poles to be removed. The Gravix DOT Precast Wall System was chosen because of the minimum excavation required (typically 50% of wall height) and the slot construction method.
The Gravix slot construction method enables a contractor to install the units into a slope or safe back cut. This can eliminate temporary shoring and help work around existing utilities. These advantages allowed the power poles to stay in place reducing construction time and cost.
CMES was also pleased to learn that the Gravix retaining wall could be backfilled with the existing soils on site, not requiring the import of select backfill. Also, the portion of the retaining wall along the roadway made use of the Mash TL-4 integrated traffic barrier.
