Civil Engineering March 2021 | Vol 29 No 2

6 March 2021 Civil Engineering indemnity insurance and R20 million professional indemnity cover. In this way TRM reduces the risks to its clients and gives them, and their professional teams, total peace of mind. ONGOING INNOVATION DESIGN & TESTING TRM Piling is constantly innovating and bringing new applications to market. Recently, piles were successfully used to support new water pipes for a remote mine in Mpumalanga. TRM designed the piles and then performed testing works on site to verify assumptions. Past innovations include the TRM socketed pile system, which is applicable in soft to medium-hard rock applications and has been designed, installed, and fully tested at over 150 Eskom tower foundations stretching almost 100 km between Medupi and Borutho in Limpopo, as well as at numerous other site locations including several mega solar projects in the Northern Cape. Elsewhere, where the soil consisted of deep sand and calcrete lenses, TRM readily installed friction grouted piles. THE TRM DUCTILE IRON SUCCESS STORY CONTINUES Over the past 40 years the successful use of ductile iron has grown rapidly around the world because it has offered the design engineer a combination of versatility and properties not available in any of its rivals. Its mechanical properties – strength, toughness, and ductility – are equivalent to many cast, forged, and fabricated steels. However, the superior durability, castability, and economy of production of ductile iron has given the designer an attractive alternative solution to improve value: significant weight reduction with improved performance, substantial im- provements in durability, and significant production and commercial savings com- pared with steel tube/pipe design and use. In summary, ductile iron has been suc- cessful because it has offered the designer superior value: higher quality and perfor- mance at lower cost. After 10 years of TRM ductile iron piling in South Africa, the TRM ductile piling success story continues. Contact Tyrone Shuttleworth Director tyrone@trmpiling.com Table 1 California State members of the Century Club (courtesy of DIPRA, USA) Location Utility Year inducted Oldest pipe Benicia City of Benicia 1991 1887 Imperial Beach California-American Water Company, Coronado District 1991 1888 Los Angeles LA Department of Water & Power 1985 1885 Merced The City of Merced 1989 1889 Monrovia City of Monrovia 2008 1908 Monterey California-American Water Company 1988 1885 Oakland East Bay Municipal Utility District 1982 1876 Pasadena Pasadena Water & Power Department, Water Division 1987 1887 Sacramento Sacramento Water Department 1954 1854 San Bernardino City of San Bernardino Municipal Water Department 2017 1909 San Francisco San Francisco Water Department 1958 1859 San Jose San Jose Water Works 1981 1878 San Luis Obispo City of San Luis Obispo 2007 1888 Santa Barbara The City of Santa Barbara 1991 1886 Santa Cruz City of Santa Cruz Water Department 1997 1890 Santa Rosa Santa Rosa Utilities Department 1994 1893 Sonora Pacific Gas & Electric Company, Water Systems Department 1965 1852 Stanford Stanford University 1989 1888 Table 2 Florida State members of the Century Club (courtesy of DIPRA, USA) Location Utility Year inducted Oldest pipe Gainesville Gainesville Regional Authority 2018 1914 Ocala The City of Ocala, Water/Sewer Department 1999 1888 Orlando Orlando Utilities Commission 1986 1886 Pensacola Department of Public Utilities 1976 1876 St. Petersburg City of St. Petersburg Water Resources 2004 1898 Tampa Tampa Water Department 1990 1888 Table 3 Boston Water & Sewer Commission member of the Sesquicentennial Club (courtesy of DIPRA, USA) Location Utility Year inducted Oldest pipe Boston Water & Sewer Commission 1999 1847 Table 4 New York State members of the Sesquicentennial Club (courtesy of DIPRA, USA) Location Utility Year inducted Oldest pipe Albany Department of Water & Supply 2002 1851 Buffalo Department of Public Works 2002 1851 Troy Department of Public Utilities 1989 1837 Utica Mohawk Valley Water Authority 2004 1849