cofferdam construction

AMS Industrial is a heavy mechanical general contractor specializing in large infrastructure work across the United States, with a focus on dam and waterway rehabilitation. Headquartered in Lafayette, Colorado, it operates nationwide primarily under federal contracts. Originally founded in 1967 as American Mine Services, the company transitioned from mining into industrial infrastructure in the early 2020s and formally adopted the name AMS Industrial in 2025.

bulkhead slot installationcrib wall repairsdam and waterway rehabilitationheavy mechanical general contractingmillwright workself-performing mechanical scopesstructural component restoration below the waterline

TrapBag® is a globally operating company headquartered in the USA that manufactures an engineered flood and erosion control barrier bag system. The barrier consists of interconnected pentagon-shaped cells filled with sand or gravel, designed as a stronger, more durable alternative to sandbags. The company has over 16 years of experience, manufactured its first TrapBag barrier in 2010, and its products have been tested by the U.S. Army Corps of Engineers and deployed in 50+ countries.

custom engineeringerosion controlflood protectionrapid deployment

Caldwell Marine International, LLC (CMI) is a marine construction contractor based in Wall Township, New Jersey, specializing in submarine cable installation and heavy civil marine construction. CMI installs and repairs submarine power and telecommunications cables worldwide and provides nearshore wind cable installation and horizontal directional drilling. It is an MBE certified, Hispanic owned contractor and part of JAG Companies Inc.

bridge rehabilitationcable lay barge operationsdock and pier constructionheavy civil marine constructionhorizontal directional drillingnearshore wind cable installationpipeline installationROV touchdown monitoringsubmarine cable installation

Crofton began as a commercial diving company in 1949 and today offers solutions above and below the waterline, combining expertise in commercial diving, marine construction, and crane rental & rigging. It is a family owned and operated business based in Portsmouth, Virginia, employing over 120 individuals, and serving the maritime, utility/energy, and agriculture segments.

barge & tug servicesbridge inspectionscommercial divingcrane rental & riggingdemolitiondesign-buildequipment rentalheavy liftingmarine constructionsalvage and recovery operationsspecialized hauling

C. White Marine, Inc. is a family-owned marine construction and general contracting company established in 1994 by Larry and Cathy White. Based in Danvers, Massachusetts, it provides marine construction, pile driving, commercial diving, and bridge construction and rehabilitation services throughout Massachusetts, Maine, New Hampshire, and Rhode Island. The company is fully bonded, licensed, and insured and is MA Highway Prequalified.

bridge constructionbridge rehabilitationcommercial divingdemolitionfloating dock constructionmarine constructionpile drivingpile jacketingseawall constructionunderwater burning and weldingwelding

C ASHMAN is a privately held multi-disciplinary construction and development company founded and owned by Jay M. Cashman, Chairman of the Board. Founded in 1969, the company operates through a family of companies across Heavy Civil & Marine Construction, Dredging, Renewables, Prestressed Concrete Storage Tanks, Energy, Project Development, Barge/Equipment Leasing, and Mechanical Construction, with over 1,000 employees and projects worldwide.

barge and equipment leasingbeach renourishmentdredgingdrilling and blastingfoundation constructionHabitat restorationmarine constructionpile drivingsite excavation and gradingstormwater managementstructural concretewind and solar energy developmentwire-wound prestressed concrete tank construction

JPC Group, Inc. is a family owned full-service construction contractor based in Philadelphia, PA and Blackwood, NJ, with expertise in road and bridge construction, water and sewer utility work, large-scale demolition, and full-service marine construction. The company has served the Delaware Valley for more than sixty years, tracing its founding to 1954 when the Petrongolo family began operating a construction firm.

deep foundationsdemolitionearth stabilizationengineeringEnvironmental Remediationexcavationgeneral buildinghelical tie back installationmarine constructionpile drivingproject managementrecyclingsite workutility construction

Kostmayer Construction is a marine construction company serving petrochemical and industrial facilities and municipalities along Louisiana's waterways and across the Gulf South. The company self-performs marine construction, mechanical piping systems, material handling systems, maintenance and emergency work, and heavy civil construction, and operates a full-service marine fabrication facility for off-site prefabrication.

emergency constructionheavy civil constructionmarine constructionmarine fabricationmaterial handling systemsmechanical piping systemspiping installationpiping maintenanceprefabricationstructural steel erection