Lightweight Fill Over Gas Pipeline

CJGeo installing LDCC over gas pipeline

Problem:

A highway expansion project required greatly increasing the depth of fill over a large diameter natural gas pipeline outside of Washington, DC.  

Constraints:

Material density needed to be less than 35PCF.  Placement depth was 18 feet deep.

Solution:

30PCF cellular concrete was determined to be the most appropriate fill material.  

Results:

CJGeo placed approximately 250 cubic yards of cellular concrete to backfill the wall and provide lightweight fill over the gas pipeline.