environmental dredging

Cashman Dredging & Marine Contracting Company, LLC is a dredging and marine construction contractor founded in 2006 by Jay M. Cashman. It provides environmental and navigation dredging, beach renourishment, industrial and pond dredging, and marine drilling and blasting, and has completed the largest environmental remediation dredging project in U.S. history. The company owns and operates a fleet of hopper, hydraulic, backhoe, and clamshell dredges and drill boats.

backfill and cappingbeach renourishmentchannel maintenanceharbor deepeningmarine constructionmarine drilling and blastingmaterial transportation and disposalnavigation dredging

Dixon Marine Services (DMS) is a California based oceanographic and wetland restoration firm specializing in vibracore sediment sampling, marine construction, environmental dredging, in-situ sub aqueous sediment capping, turbidity management and hydrographic surveying.

hydrographic surveyingin-situ sub aqueous sediment cappingmarine constructionturbidity managementvibracore sediment samplingwetland restoration and remediation

Brennan is a fourth-generation, family-owned marine construction company founded in 1919 along the Mississippi River. It designs and delivers solutions for complex maritime, environmental, and infrastructure challenges above, along, and below the waterline, serving public and private owners of water-based infrastructure across coastal and inland waterways nationwide.

barge cleaningbarge terminal and dock constructioncofferdamscommercial divingconcrete placement and repairsdam constructiondewatering and material separationgroutingharbor switching and fleetinghydrographic surveymarine constructionROV supportsediment cappingsubmarine cable installation and burialtreatability testingunderwater inspectionswater treatmentwelding