Landfill Construction, U.S. Army Garrison, Redstone Arsenal, AL

• Landfill construction and corrective measures implementation for an inactive 50-acre sanitary and industrial landfill
• Construction Surveying of pre-construction conditions, landfill boundary, excavation and consolidation limits, soil placement and foundation layer, geosynthetic clay liner (GCL), final cover, and permanent survey and settlement monuments
• Erosion Control – prepared SWPPP, implemented stormwater BMPs, including straw wattles and management of silt fencing
• Earthwork/Excavation – Insight excavated approximately 64,000 cubic yards of landfill waste, to a maximum excavation depth of approximately 12 to 14 feet, and consolidated waste materials.
• Placed a 24-inch foundation layer using soil imported from a borrow pit, then compacted, graded, and rolled to a smooth finish
• Installed GCL
• Placed a 12-inch imported clean topsoil cover layer and spread amendments to support vegetation
• Performed final backfill and compaction, and performed geotechnical testing including density tests
• Revegetation – Hydro-seeded the site, added soil amendments, and installed fiber rolls
• Drainage Control – Excavated trenches, installed concrete drain inlets and corrugated metal pipe, backfilled and compacted trenches, and performed final grading of runoff diversion channels and riprap outfalls
• Contract Value $1.1 Million