General Contractor: Barnard Construction Co. The Haiwee Power Plant Penstock project, in the remote Owens Valley in the Eastern Sierras, involved replacing 9,420 ft of carbon-steel riveted penstock.

Edited by Paul Fournier Laboring in a remote, heavily wooded area, construction crews recently replaced half of a badly leaking wood stave penstock serving Public Service of New Hampshire's (PSNH) ...