A freight train rolls by as subcontractors drill shafts for the overpass. Photo by Raquel Hendrickson

Construction crews are drilling around 30 shafts 40-70 feet deep, filling them with tied rebar and concrete to form the foundations to support the columns for the overpass, according to the City of Maricopa.  Crews are working next to the Amtrak station on the south side of Maricopa-Casa Grande Highway.

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