Marine Pipeline Construction

Our depth of experience and industry expertise leave us uniquely qualified to address every phase of your marine pipeline project, including installation, repair, abandonment, and trenching, using materials such as steel, concrete, fiberglass, HDPE, and ductile iron. Orion Marine Group services and solutions work across a range of applications, from oil and gas and chemicals, to petroleum products, wastewater, and waterline intakes and outfalls. Our long history of on-time completions and excellent safety record are benchmarks of Orion Marine Group customer satisfaction.


  • Intakes
  • Outfalls
  • Jetting
  • Hot-taps
  • Tie-ins
  • Risers
  • Pipeline Anchoring
  • Cool Water Intakes
  • Velocity Control Structures
  • Effluent Discharge Outfalls
  • Transmission Pipelines
  • Communication Pipelines

Project Highlights

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Galveston Bay Transmission Pipeline

Galveston Bay, Texas

Construct 13.75 mi 24 in dia steel pipeline across Galveston Bay, 3 directional-drilled segments.

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4th Avenue North Ocean Outfall

Myrtle Beach, South Carolina

Construct a new twin 84" diameter RCP outfall approximately 1500 LF including on shore demolition and remediation to facilitate the construction of the outfall.

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Virginia Beach Outfall Pipeline

Virginia Beach, Virginia

Fabricate/loadout 100+ T of offshore modules from OMG Houston Ship Channel marine facility.

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Intake Pipeline, Methanol Facility

Bioko Island, Africa

Construct/launch 60 in heat-fused intake pipeline with concrete weights.

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HDPE Pipeline, Atlantic Ocean

South Padre Puerto Plata, Dominican Republic

Assemble/stage 54 in HDPE pipeline with concrete weights, install in prepared trench.

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Ship Channel Utility Crossing

Corpus Christi, Texas

Dredge burden/remove pipeline crossing in ship channel. Facilitate with crane barges and winches.

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Outfall Structure, Victoria Barge Canal, U.S. Army Corps of Engineers

Victoria, Texas

Construct dual 48 in outfall pipelines and valve structures for new Dredged Material Placement Area.

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Pipeline Installation

Puntarenas, Costa Rica

Onshore welding, pull 8,100 Lft of 10 in dia steel pipe with 3 in foam and 2 in concrete coating.

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Metro Dade Water and Sewer Authority

Key Biscayne, Florida

Install 5,900 Lft of 122-in dia reinforced concrete pressure pipe within 20 ft wide coffer cell. Limit environmental damage to Biscayne Bay.

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Vieques Waterline

Island of Vieques, Puerto Rico

Install 56,500 ft of 16-in dia weight-coated steel waterline from Punta Lima to Vieques, Puerto Rico.

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Matagorda Pipeline

Matagorda, Texas

Install 10+ mi of 36 in pipeline across East Matagorda Bay.

Orion Marine Group offers a comprehensive range of end-to-end services and custom turnkey solutions to meet even the most exacting customer specifications. We work collaboratively with customers to create solutions that achieve not only their immediate goals, but bring long-term value to their investment.