Lightweight Fill Over Gas Pipeline
A highway expansion project required greatly increasing the depth of fill over a large diameter natural gas pipeline outside of Washington, DC.
Material density needed to be less than 35PCF. Placement depth was 18 feet deep.
30PCF cellular concrete was determined to be the most appropriate fill material.
CJGeo placed approximately 250 cubic yards of cellular concrete to backfill the wall and provide lightweight fill over the gas pipeline.