Decorative Landscaping Products
Fish & Wildlife Habitats
Marina Del Rey, CA
GEOTEC Associates, Inc. (Vicksburg, Mississippi), Los Angeles District, TC Mirafi Corporation, Geocontainer Group (Pendergrass, Georgia)
||Marina Del Rey, California
||Test demonstrations using sandy dredged material to fill geocontainers. Filled geocontainers were
placed in water depths up to 70 feet using split hull bottom dump barges.
||Sandy dredged material with lead, zinc, and copper contaminants used as geocontainer fill material.
||44 geocontainers, each containing an average of 1300 cubic yards of dredged material.
||Contaminated material can be removed from the system for prices ranging from $16 to $79 per cubic yard.
||Conclusions of these tests are: (1) geocontainers cannot be overfilled or they will fail; (2) fabric strength is of critical importance; (3) hopper barges must be clean and in good repair to deploy correctly; and (4) bulking factors of the material is of critical importance to successful deployment of tubes.
||Field tests were conducted at Marina Del Rey to study the feasibility of filling geocontainers with dredged material. The tubes were lined with non-woven polyester geotextile that kept the material contaminated with lead, zinc, and copper from escaping. The geocontainers were filled and dumped into an approved underwater area out of harm's way.
Fowler, J. and Trainer, E. (1997.) "Overview of geocontainer projects in the United States," Proceedings: International Workshop on Dredged Material Beneficial Uses." Unnumbered U.S. Army Corps of Engineers Document, M.C. Landin,
ed., Waterways Experiment Station, Vicksburg, Mississippi, USA, 148.
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