Crews use a helicopter to assist in stringing the Rush Creek Project transmission line.
View full image345 kV weathering steel monopole and 230 kV steel lattice structures in Colorado.
View full imageA heavy lift helicopter sets the base of a 345 kV structure in a Minnesota.
View full imageThe finished Mississippi River crossing between Minn. & Wis.
View full imageConcrete is poured for foundations on the Mississippi River crossing.
View full imageConcrete trucks are moved in on barges to build a transmission line across the Mississippi River.
View full imageAn aerial view of construction near Carlsbad on the Hobbs-China Draw 345 kV transmission line.
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