Floating Security Barrier

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Our Floating Security Barrier designs and builds for protection from a big or small or fast marine vessel. Our Floating Barrier is an ideal solution for all kinds of marine places that need security. Mavi Deniz offers three types of Floating Security Barriers; Port Security Barrier, Floating Demarcation Barrier, Boating Barrier, and Jet Ski Barrier, preventing sea threats. We develop the project to shape customer demands, include flexible and cost-efficient solutions, and avert terrorist attacks, especially high-speed boats.

Military Installations

The Need: After the terrorist attack, the Navy ordered the marine floating security barrier to establishing a defense perimeter at naval bases worldwide.

What We Did:: The Harbor Offshore Barriers team installed and continues to maintain Navy barrier systems in continental Turkey, Guam, Hawaii, Japan, Iraq, Pakistan, Italy, and Spain. The Navy consistently rates Harbor Offshore Barriers’ performance as Excellent or Very Good, resulting in an awarded bonus for 95% of 26 task orders from 2003 to 2015.

LNG, Oil Production and Transportation Facilities

The Need: Offshore and coastal oil and gas facilities require significant construction and operational investment. Protecting these assets from malicious and destructive attacks by installing a marine floating security barrier shows to investors and insurers that the operating owner is a credible business directly addressing high risks to operational stability. Technology driving the expansion of floating production, storage, and offloading (FPSO) and floating, storage, and re-gasification units (FSRU) alone increases the demand for meeting the highest marine floating security standards.

We Did: Harbor Offshore Barrier specialists use high-performance computer modeling to examine barrier reliability and efficiencies under simulated conditions to design an offshore system. These include sea and weather conditions, water depths, and wave action to replicate “real-world” engineering requirements.

Ports and Marinas

The Need: Port operations, whether for containerized, bulk, or break-bulk cargo, cruise ships, fishing vessels, and pleasure boats, occur in urban areas of the world’s cities. The threats of sabotage, theft, smuggling, and fatal explosions need to be deterred by a visible floating fence to keep out intruders while allowing vessel traffic operations to proceed as scheduled.

What We Did: While patrol vessels rapidly move to an area under threat, Harbor Offshore Barriers’ maritime floating security systems are demarcation barriers beyond which no one should pass. They provide that extra security measures deter even the idea of attacking a vessel in a port or traffic channel while complementing marine patrols.

Nuclear Power Plant

The Need: Government agencies are required on-lake nuclear power plant owners to install underwater barriers to prevent access to intake pipes.

We Did: Harbor Offshore Barriers’ site visit team determined that the lake’s bottom and environmental conditions required a customized 152 m structure. The system included a single 30.5 m bridge span unit and a gate. The client found that we were the only company that could meet their nuclear power plant requirements.


The Need: The government has found that it is in the public’s interest to protect dams from domestic and foreign terrorist attacks. An attack would cause massive flooding, loss of life and property, and destroy hydroelectric power facilities.

What We Did: The Bureau of Reclamation engaged Harbor Offshore Barriers to install waterside barrier systems for several dams and waterways. Our project manager successfully designed and executed a logistics strategy for transporting significant components and equipment to remote locations.

For the coastal states, maritime power is mostly a requirement of defense policy; however, no economy can survive without international trade support and the centuries in today’s global world. Today, sea transport constitutes the dominant business network; hence, protecting these routes and bases and harbors in the main stops gains priority for all states. Therefore, within security strategies shaped with “a better and safer world” slogan, the first recurred thing becomes terrorism, and preventing this threat increases the importance of sea security and this context for base-harbor defense.

Physically keep vessels away.

The targets for these new types of threats include:

  • Military Installations
  • Offshore crude oil and natural gas terminals
  • Nuclear facilities
  • Desalination plants
  • Port facilities for cargo vessels
  • Port facilities for cruise ships
  • Dams of hydroelectric power plants

Port Security Barrier

FSB 800FSB 710FSB 630FSB 500FSB 450
Pontoon ColourBlack
Net MaterialSteel Wire Mesh (Standard) | Rope (Optional)
Beam MaterialMarine Grade Steel
Net Height500 mm (Standard) | 1000 mm (Optional)
Pontoon Height800 mm710 mm630 mm500 mm450 mm
Section Length6 m / 12 m
OptionalUnderwater net for diver security | Underwater Diver Detection Device | Boat Gate | Anchor & Sinker Set | Warning Sign | Kayak Cable | Foam inside Pontoon | Solar Panel | Navigation Light

Floating Demarcation Barrier

JetSki 3JetSki 2JetSki 1
Float MaterialPEPEPE
Float ColourOrange (Standard) | White, Yellow, Blue (Optional)
Overall height755 mm640 mm430 mm
Buoyancy250 kg180 kg90 kg
Weight28 kg22 kg10 kg
Section Length1100 mm950 mm650 mm

Boating + Jet ski barrier


JetSki 3JetSki 2JetSki 1
Float MaterialPEPEPE
Float ColourOrange (Standard) | White, Yellow, Blue (Optional)
Overall height350 mm200 mm150 mm
Buoyancy70 kg20 kg9 kg
Weight5 kg1,8 kg0,9 kg
Section Length900 mm800 mm600 mm

Floating Security Barrier

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Floating Security Barrier


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