A high-pressure gas line running through a landfill site near Lewiston, New York, presented a challenge to the landfill owner, Modern Landfill of Model City, NY. The original plan of moving the gas line to meet the capacity needs of the landfill was quite onerous, and hence there was a need for a fresh look.

The design suggested the use of StrataGrid™ geogrids, which have optimal engineering characteristics essential for reinforced soil technology. StrataGrid™ 350 and 500 were used for the primary reinforcement to strengthen the soil for the berm. Strata’s lighter weight StrataGrid™ 150 was installed for secondary reinforcement in fill lifts between the primary reinforcement.

Therefore, StrataGrid™ was selected as an innovative solution for constructing the Mechanically Stabilized Earth (MSE) berm to maintain the permitted landfill area and capacity without the need to move the high-pressure gas line. It also proved to be cost-effective by providing more storage revenue within the same land space.