The historic Lane Building is a twelve-story, nonductile concrete structure originally constructed in the early 1920s. The owner undertook a renovation project to convert the building to a mixed-use property with ground-floor retail and more than...
The salt processing dome, with an inside diameter of 173 ft and a dome peak of 65 ft, houses equipment for processing and packaging bulk rock salt for commercial sale. The shell structure was constructed in 1985 by placing a nominal 3-1/2 in. of...
Constructed in the 1870s, the Beacon Street Line carries water under the MBTA Green Line tracks in the busy Brookline neighborhood. Massachusetts Water Resources Authority (MWRA) identified a leak in the 48-in. dia. cast iron pipe below the train...
In 2014, a five-story residence was constructed directly over DC Water’s North East Boundary Trunk Sewer (NEBTS) with only about 2 ft of soil between the bottom of the basement and the top of the 22-ft dia. masonry sewer. DC Water...
Designed by Skidmore Owings & Merrill in the 1960s, Building 9 houses Massachusetts Institute of Technology’s (MIT’s) Department of Urban Studies and Planning and its Center for Real Estate. With a generous donation from Sam Tak...
As required by the City of Boston, The Carillon’s condominium association undertook an inspection of the building’s facade. SGH performed the inspection, identifying cracks in the glass fiber-reinforced concrete (GFRC) panels along...
Brandon Shores Power Plant (BSPP) has a proactive inspection and repair program for circulating water and service water pipelines, including prestressed concrete cylinder pipe (PCCP), steel pipe, ductile iron pipe, and others with diameters...
While attempting to install telecommunications lines below a creek, a driller punctured a buried, 48 in. dia. prestressed concrete cylinder pipe (PCCP). The pipe is part of Columbus’s water system that supplies water to more than one...
At the power plant, 84 in. dia. steel discharge headers transfer water from the condenser to the discharge tunnel. SGH designed internally bonded, carbon fiber-reinforced polymer (CFRP) liners for the discharge headers and provided engineering...
The low-pressure service water system comprises 36 in., 42 in., and 54 in. dia. steel pipe. Approximately 1800 ft of pipe was corroded and required repair. SGH designed internally bonded, carbon fiber-reinforced polymer (CFRP) repairs and...
CFRP pipe lining has proven to be a valuable piping repair technology. Compared to conventional excavation-type repairs, it requires less excavation and disruption to above-ground operations, as well as shorter time out of service. However,...
Washington Suburban Sanitary Commission (WSSC Water), one of the largest users of carbon fiber reinforced polymer (CFRP) liners for large diameter pressure pipe, is considering expanding its use of FRP liners to include small diameter pressure...
Washington Suburban Sanitary Commission (WSSC) has been using carbon fiber reinforced polymer (CFRP) liners for repair of prestressed concrete cylinder pipe (PCCP) since mid-2000s. As part of its repair program, WSSC also performs investigations...
The joint transmission main (JTM) is part of the 38 mile long Joint Regional Water Supply System, operated and maintained by the South Coast Water District in California. The pipeline, made of 60 in. diameter PCCP manufactured in early 1960s,...
By: Murat Engindeniz, Kyle Sanderson, Anthony Samarripas, Aliza Caraballo
The North Texas Municipal Water District (NTMWD) is considering making improvements to the transmission system and pumping scenarios to provide redundancy to their Wylie-Rockwall-Farmersville (WRF) Pump Station, and the planned pumping...
Washington Suburban Sanitary Commission (WSSC)’s condition assessment and repair program on critical transmission mains continued in spring 2016 with a record-breaking project where a total of forty-one 60 in. to 66 in. diameter prestressed...
Since the beginning of carbon fiber reinforced polymer (CFRP) lining of pipes in the late 1990s, thousands of feet of pipe have been lined with CFRP in hundreds of projects across the United States. In the last decade, the author has been directly involved in the initial and final development of this technology and has applied it to pipes with various diameters, distress conditions, design loads, etc. in more than one hundred project
This paper presents Santa Clara Valley Water District's (SCVWD) approach to addressing their first high profile water main failure including their application of failure investigation, emergency condition assessment, pipe...
Fiber Reinforced Polymer (FRP) rehabilitation systems have validated efficacy in structural rehabilitation of pipelines since the first installation in the early 1990s. The hand applied layers of carbon and glass FRPs allow for time...
In a recent interview, Simpson Gumpertz & Heger (SGH) Senior Principal Rasko Ojdrovic gave an overview of his experience with pipelines and discussed some challenges of this work.