High Wiring Actby John Prendergast, Associate Editor;
Serial Information: Civil Engineering—ASCE, 1990, Vol. 60, Issue 1, Pg. 54-56
Document Type: Feature article
Prendergast describes a project to construct a 345 kV transmission line over 313 mi in southwestern New Mexico, in which, due to environmental considerations and limited access, extensive use was made of helicopter transport. In the South, where the line runs between the Rio Grande River to the east and the Black Range to the west, the soil is highly erodible. The terrain becomes more mountainous in the north, where the helicopters were used. A sky crane was used to carry 450 130 ft tall, 7 ton lattice steel towers to sites. Smaller helicopters transported work crews, excavating equipment, and foundation materials to some sites. The article also covers precautions taken to preserve historical and archaeological sites lying in the path of the line.
Subject Headings: Aircraft and spacecraft | Historic sites | Historic preservation | Erosion | Developing countries | Environmental issues | Power transmission | Rivers and streams | North America | Rio Grande | United States | New Mexico
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