The Alpharetta City Council voted Tuesday to approve an engineering and consulting contract for a trail extension that would unite the two segments of the Big Creek Greenway in North Fulton and Forsyth counties.

The Council awarded a $74,590 contract to Pond & Co., Norcross, to conduct a 12-week feasibility study and prepare conceptual designs for route options for a Greenway Extension.

At present, there’s a gap of roughly three miles between the trail segments. The Alpharetta portion extends from just south of Mansell Road north to Marconi Drive near Windward Parkway, while the Forsyth portion picks up at McFarland Parkway and runs north to Johnson Road.

Among the tasks outlined in its proposal to Alpharetta, Pond said it would survey a route approximately 80 feet wide, catalog trees with trunks 6 inches or larger in the proposed corridor, and estimate construct costs and property impacts.

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