| Project: Bulkhead replacement and MGP Site Remediation Location: Gowanus Canal, NY | Industry: Utility Contaminants: Coal Tar, Heavy Metals |
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CEI implemented the removal and replacement of approximately 870 lineal feet of existing bulkhead along the Gowanus Canal and performed uplands soil remediation at multiple locations on this former inner-city MGP site.
PROJECT HIGHLIGHTS
- Demolish concrete gas holder, bulkhead and building foundations
- Protection of 60” 100-year old, brick sewer trunk line, gas mains and utility tunnel
- Install 870 lineal feet of permanent steel bulkhead sheeting
- Excavate 41,472 cubic yards of contaminated soil to a maximum depth of 24’ bgs within a temporary structure
- Backfill excavations with 39,515 cubic yards of material – re-use soil, certified clean soil and flowable fill
- Pre-drill (Sonic) 27,000 lineal feet and install temporary sheeting to 45’ bgs.
- Excavation and Disposal of 90,000 tons of MGP soil and 2,600 tons of haz (D008) lead soil
- Treat and discharge 2,000,000 gallons of groundwater