Back to Basics: String lines.

December 20, 2002

Strings were essentially the only method used to maintain the control lines used to construct buildings, bridges, canals, tunnels or highways.

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Back to Basics: Quick setup with a laser plummet.

Back to Basics: Fieldwork tips.

Wesley G. Crawford is a professor of building construction management at Purdue University.
Wesley Crawford is the author of the highly acclaimed book Construction Surveying and Layout, now in its third edition. For information, visit www.creativeconstruction.com or www.pobonline.com (click on POB Store).