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Gwinnett Firm To Build County's First 'Diverging Diamond'

E.R. Snell of Snellville wins bidding for the I-85 project. The "diverging diamond" effort is coming to Pleasant Hill Road at I-85.

The Gwinnett company that developed the McGinnis Ferry Road overpass over I-85 in Suwanee has landed another key traffic project.

The E.R. Snell Co. of Snellville will build the couty's first "diverging diamond" interchange on I-85, at Pleasant Hill Road in Duluth, according to a county news release. Construction should begin this summer.

E.R. Snell Contractor Inc. of Snellville was the lowest of three bidders at just under $4.3 million, which will come from SPLOST funds, the news release said. The work involves widening a half-mile of roadway plus new retaining walls, curb and gutter, sidewalks and traffic signals. The timing of other signals approaching the intersection will also get adjustments to ensure smooth traffic flow.

Gwinnett Transportation Director Kim Conroy said, “The Gwinnett Place Community Improvement District has worked closely with our traffic engineers on the new design, which is similar to the diverging diamond that opened recently on Ashford-Dunwoody Road at I-285 near Perimeter Mall. We estimate this will extend the useful life of the existing bridge by about 10 years with no widening needed.”

The project is expected to be complete within a year.

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Rico Figliolini June 21, 2012 at 11:00 AM
I hadn't heard of the a "diverging diamond" interchange until now. Did find a 3D video rendering online that explains it for those like me who haven't seen one http://www.invisionstudios.com/gallery/Gallery_11%28media%29.htm
Steve Burns (Editor) June 21, 2012 at 11:17 AM
Thanks, Rico.
Eric Van Otteren June 21, 2012 at 03:49 PM
Another great Snellville Business taking on an innovative project.
Steve Burns (Editor) June 21, 2012 at 05:55 PM
Snell certainly gets a lot of important projects in Gwinnett.
Mack June 22, 2012 at 12:39 PM
Have seen this style of trafic control at other places . Still waiting to see if it will really work in the Ashford Dunwoody and I-285 area. Seems that this concept will slow traffic even more. will have to see about that. Do not think it is a good idea.

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