Underwater & marine construction, self-performed.
We do more than just dive.
Seaward Marine Corporation builds, repairs, dredges and inspects marine infrastructure along the East Coast — with our own divers, tugs and crane barges, for the Navy, USACE, USCG and commercial owners.
$15.3M Navy maintenance dredging contract at Joint Expeditionary Base Little Creek–Fort Story.
Read the announcement →Four disciplines. One crew. One contract.
Dive teams, pile crews, dredge operators and tug captains under one roof means fewer subs, tighter schedules and one point of accountability on the water.
Commercial Diving
Mixed-gas and deep-air diving, inspection, NDT, underwater welding and salvage.
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Heavy Marine Construction
Wharfs, piers and bridges; pile driving and rehabilitation; cathodic protection.
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Dredging & Marine Civil
Mechanical dredging, erosion control, underwater pipelines and cable burial.
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Towing, Tug & Barge
Tug and crane-barge mobilization, ship's husbandry, buoy tow and salvage.
ExplorePast performance on the water
VirginiaTruss Bridge Demolition & Recovery
Dropped, cut and lifted steel truss spans from the channel and barged them out by tug.
Read case study →
Philadelphia–TrentonDelaware River Maintenance Dredging
About $12.9M of federal channel maintenance between Philadelphia and Trenton.
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Portsmouth, VANNSY Berth 42 Mooring Bitts
Mooring bitt replacement at Norfolk Naval Shipyard, kept the berth in service.
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We own the boats.
Self-performed work starts with self-owned equipment. Our tugs, crane barges, crew boats and dive spreads mobilize from our Chesapeake yard and tug dock — no waiting on a third-party charter.
- 25 active tugs, largest 31 m / 3,900 hp
- Crane barges for heavy lift, pile driving and dredging
- Mixed-gas dive spreads and deck decompression chamber
- 80 m floating concrete tug dock in Chesapeake, VA
ADCI
Divers Alert Network
ASSP
OSHA
USACE EM 385
FHWA
NHI Bridge Inspection
EEO Employer24/7 Emergency Response
Vessel salvage, pier strikes, pipeline and hull damage — a crew is on call around the clock.
Past performance, IDs and NAICS in one place.
UEI, CAGE, NAICS codes, veteran-owned status, VDOT SBE certificate and our capability statement.