Design Standards for Large‐Diameter Steel Water Pipe

DURING the past 25 years many millions of feet of large-diameter welded steel pipe have been manufactured and installed throughout the country for use in the water works industry. The accompanying photographs illustrate two such major installations designed for service in the decades prior to 1925 large-diameter steel pipe of riveted, or lock-bar, construction also was used successfully for water transmission lines. Steel pipe possesses many advantages, including the five chief requisites of any good water conduit reliability, strength, high carrying capac-