McCartney letter and IGS-NA happenings

August 1, 2019

IGS North America (IGS-NA) welcomes two new members to the board of directors. The board voted to add Kate Patterson of Klohn Crippen Berger as a co-opted board member. Patterson is a civil and water resources engineer in Vancouver, British Columbia, Canada, and brings a new perspective to the board of directors on geosynthetics in …

A minitube blanket for landfill gas collection and containment

By Stephan Fourmont, Pascal Saunier and Toraj Ghofrani Landfill gas (LFG) is produced during the decomposition of putrescible material in landfills. Often referred to as biogas, LFG is a source of odors and fugitive greenhouse gas (GHG) emissions. LFG is typically 40%–60% methane, which is 25 times more potent to affect climate change than carbon …

Commentary on flood abatement using geosynthetics

By Robert M. and George R. Koerner On Sept. 8, 1900, a Category 4 hurricane struck Galveston, Texas, which is situated on the Gulf of Mexico about 8 feet (2.4 m) above sea level. The storm created a 15-foot (4.6-m) storm surge, killing 8,000 to 12,000 people and causing massive destruction. Subsequently, four actions were …

Stabilization of subgrade soils during Interstate 95 lane widening

By Bryan C. Gee, Eric Klein and William T. Maier The Maryland Transportation Authority (MDTA) is implementing a multiyear, multiphase project to add express toll lanes (ETLs) to Interstate 95. The ETLs are providing significant congestion relief in one of the most heavily trafficked corridors in the United States. The major modification to I-95 consists …