Marine Construction

Exceptional Marine Construction for Your Underwater Project

At Underwater Resources, Inc., our senior management, and key field personnel combine marine construction and commercial diving experience for shallow and deep-water projects. This includes repair and new work performed at both offshore and coastal locations, within inland marine waterways, and industrial plant facilities for both the private and public sectors. Underwater Resources, Inc. enjoys the challenge and rewards of performing under difficult and adverse conditions that are always present in and around the water.

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Extensive Knowledge and Background

Our field diving and technical personnel have been formally trained, and field tested on some of the largest marine construction projects in the world. We have a background in construction, repair, and rehabilitation projects that brings a high level of safety and innovation to our team, allowing for low-cost and timely delivery. We select the right equipment, personnel, and methodologies, carefully tailored for all types of marine construction projects under all conditions.

Complex and Simple Projects

Our services include dock and pier rehabilitation, internal pipeline cleaning and leak repairs, replacement of valves, repairs to dam appurtenances, installation, and maintenance of floating barriers, as well as construction of large diameter submarine HDPE pipelines.

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Performing Underwater CONSTRUCTION WORK

Underwater Resources, Inc. can provide you with diving services for retrofits, repairs, and construction of various underwater structures. We can work on sanitary ocean outfalls, open canals, water intake and transmission lines, gas or oil pipelines and perform long penetrations within tunnels.

WHAT WE DO


  • STRUCTURAL AND MECHANICAL REPAIRS
    of waterfront facilities including wood, steel, and concrete rehabilitation of above and UW piling and substructure members; corrosion monitoring and installation of cathodic protection systems; concrete rehabilitation and weld repairs.
  • DAM INSPECTION, REPAIR, AND RETROFIT
    Demolition and replacement of sluice gate operating systems; injection leak repair, concrete restoration of dam faces, spillways, and penstocks.
  • OFFSHORE, COASTAL, AND INSHORE DIVING
    For repairs of ocean outfalls, lake tap directional drilling, and salvage recovery of materials or structures. Fixed coastal structure rehabilitation, and new construction; substructure repairs and rehabilitation of large piers not accessible from onshore. Marine vessel and diving support for submarine power and fiber optic cable installations, excavation/dredging with erosion protection, and repairs.
  • OIL REFINERY, SANITARY AND PROCESS PLANT FACILITY REPAIRS
    In aeration or bio-reactor ponds, clarifiers and digesters, force mains and traveling intake screens; wet-welding and valve replacement, installation of portable dewatering cofferdam systems (Portadam®).
  • SEDIMENT REMOVAL DISPLACEMENT OPERATIONS
    That are required for salvage, pipeline or cable burial and piling, and submarine structure repairs.
  • UTILIZATION OF ASSORTED UW HYDRAULIC
    Or pneumatic power tools and various UW burning & welding, wire-saw cutting, and HP water blasting equipment and systems.
  • PERFORMANCE OF PROJECTS
    Requiring high-altitude diving operations, enriched air (NITROX) as well as deep air and mixed gas diving operations above up to 250’ in depth.
  • HDPE PIPELINE INSTALLATIONS
    We design and construct HDPE pipelines up to 63” diameter for sanitary outfalls, water intake and conveyance systems. Fusion welding of 40’ to 50’ pipe sections onshore up to 8000’ in length for submergence within precision seabed and lake bottom corridors routinely in water depths up to 125’ and deeper ocean depths.
  • DIAMOND WIRE SAW CUTTING AND DEMOLITION
    Using this methodology for seismic retrofit and demolition of concrete structures minimizes environmental impact and allows for faster and more economical upgrades and replacement of marine structures, including raw water intake towers, bridge piers, and water impoundment structures using limited and minimal above water spread equipment and support services.
  • CORROSION PROTECTION OR SEISMIC UPGRADE OF MARINE STRUCTURES
    UW encapsulation of steel piling and pipeline structures using corrosion-resistant or protection systems and seismic upgrade on concrete structures or caissons using fiber-reinforced polymer systems (FRP). Installation of sacrificial anodes and impressed current cathodic protection systems.
  • CONCRETE RESTORATION, LEAK REPAIR, OR SUBSTRATE STABILIZATION
    Epoxy and urethane injection of cracks and cold joints in concrete structures for rehabilitation and structural repair, sealing groundwater intrusion or leakage through separated RCP outfall pipelines. We also install internal mechanical pipeline seals up to 144” diameter pipe (WEKO-Seal®), and pipeline slip-line of culverts, soil stabilization using cement and urethane grouts beneath submerged structures.
  • SALVAGE OF SUNKEN VESSELS
    Recovery of overboard cargo, anchors and buoys, and other lost products and unidentified abandoned materials; marine vessel support for offshore and coastal environmental clean-up operations.
  • SHORELINE EROSION CONTROL AND HABITAT MITIGATION
    Installation of articulated concrete mattresses and barriers for erosion protection; alteration of adverse shoreline sand accretion and littoral transport; scour repairs along bridge abutments and outfall pipelines; placement of sand/grout-filled bags; placement of Aquatic Invasive Species (AIS) control barriers and removal of non-native plant and animal species.

WHY CHOOSE US

Our experience in planning and executing difficult projects and ability to determine reasonable and safe work scopes in geographic locations including inshore, exposed coastlines, offshore and at industrial facilities stems from long-term experience operating under a variety of job site conditions.

GET IN TOUCH

To learn more information, contact our company today. We look forward to hearing from you.