A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
102-Inch Cliff Pipe Rehabilitation
After the 4.5-mile (7.2 km), 50-year-old, 2.6 m (102-inch) Olmsted Flowline Pipe was acquired from a power company, Central Utah Water Conservancy District (CUWCD) investigated ways to increase its reliability and reduce its maintenance. Its lower "Reach A", a 0.6 km (2000-foot) reach of pipe on a cliff, was failing due to punctures from boulder falls, steel trestle failures, concrete support cracking, pipe lining and coating failure, and inadequate maintenance access. CUWCD rehabilitated this pipe on a cliff in order to provide a spillway for a new regulating reservoir, provide hydropower reliability, reduce operations and maintenance (O&M) in a hazardous work area, and improve canyon aesthetics. CH2M HILL designed rehabilitated facilities for relocating the pipe (to "tuck" it into the cliff), textured concrete surfacing to aesthetically blend pipe encasements into the cliff, a drivable access for the cliff pipe, rock anchors to secure the pipe to the cliff, and vegetated reinforced earth slopes at non-cliff reaches. The Olmsted System spillway for a new 10 million gallon (MG) tank were maintained by the cliff pipe rehabilitation where flows were split between the hydropower system and CUWCD's municipal and industrial (M&I) system. Steep earthen cross slopes were soil nailed to allow for a buried pipe replacement of the Flowline. This approach eliminated talus buildup on an above ground pipe while stabilizing slopes uphill of trench cuts so they would not fail into the new buried pipeline in construction or in perpetuity.
102-Inch Cliff Pipe Rehabilitation
After the 4.5-mile (7.2 km), 50-year-old, 2.6 m (102-inch) Olmsted Flowline Pipe was acquired from a power company, Central Utah Water Conservancy District (CUWCD) investigated ways to increase its reliability and reduce its maintenance. Its lower "Reach A", a 0.6 km (2000-foot) reach of pipe on a cliff, was failing due to punctures from boulder falls, steel trestle failures, concrete support cracking, pipe lining and coating failure, and inadequate maintenance access. CUWCD rehabilitated this pipe on a cliff in order to provide a spillway for a new regulating reservoir, provide hydropower reliability, reduce operations and maintenance (O&M) in a hazardous work area, and improve canyon aesthetics. CH2M HILL designed rehabilitated facilities for relocating the pipe (to "tuck" it into the cliff), textured concrete surfacing to aesthetically blend pipe encasements into the cliff, a drivable access for the cliff pipe, rock anchors to secure the pipe to the cliff, and vegetated reinforced earth slopes at non-cliff reaches. The Olmsted System spillway for a new 10 million gallon (MG) tank were maintained by the cliff pipe rehabilitation where flows were split between the hydropower system and CUWCD's municipal and industrial (M&I) system. Steep earthen cross slopes were soil nailed to allow for a buried pipe replacement of the Flowline. This approach eliminated talus buildup on an above ground pipe while stabilizing slopes uphill of trench cuts so they would not fail into the new buried pipeline in construction or in perpetuity.
102-Inch Cliff Pipe Rehabilitation
Lambson, Cort (author) / Mickelson, Mike (author) / Jones, Nathaniel (author) / Murdock, Adam (author)
International Conference on Pipeline Engineering and Construction ; 2007 ; Boston, Massachusetts, United States
Pipelines 2007 ; 1-10
2007-07-06
Conference paper
Electronic Resource
English
102-Inch Cliff Pipe Rehabilitation
| British Library Conference Proceedings | 2007
Reconstructed: Red Cliff Arch Rehabilitation Project, Red Cliff, CO
British Library Online Contents | 2005