“We have the highest level of experience in our industry and the best product. We take on projects other boat barrier suppliers cannot. We partner with our clients to give them the highest possible service and most competent boat barrier systems available.”
—Cliff Center, Director of Marine Construction

Harbor Offshore Barriers, Inc. is the marine security specialty company of Harbor Offshore Inc. Our mission is to meet every customer’s unique needs, from project conception to completion and beyond.

Our team delivers what you need when you need it. Most importantly, we do not just talk about projects; we have done the work.

Boat barriers for US Navy bases

Military Installations

The Need: After the October 2000 USS Cole terrorist attack, the US Navy ordered marine security barriers to establish a defense perimeter at naval bases worldwide.

What We Did: The Harbor Offshore Barriers team installed and continues to maintain US Navy barrier systems in the continental US, Guam, Hawaii, Japan, Iraq, Crete, and Spain. In the 26 task orders from 2003-2014, Harbor Offshore Barriers received an average 95% award bonus. Since 2014, Harbor Offshore has worked on 12 additional task orders and received scores of Very Good to Excellent in post-job evaluations.

Barrier applied loads

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 marine security barriers demonstrates 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 regasification units (FSRU) alone increases demand for meeting the highest marine security standards.

What We Did: Harbor Offshore Barriers specialists are using 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.

Floating barriers for seaport and marina protection

Ports and Marinas

The Need: Port operations, whether for containerized, bulk, or break-bulk cargo, cruise ships, fishing vessels and pleasure boats, by and large take place in urban areas of the world’s cities. The threats of sabotage, theft, smuggling and lethal 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 security systems are demarcation barriers beyond which no one should pass. They provide that extra measure of security to deter even the idea of attacking a vessel in port or traffic channel while complementing marine patrols.

Underwater barriers for nuclear power plant protection

Nuclear Power Plants

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

What We Did: Harbor Offshore Barriers’ site visit team determined that the lake bottom and environmental conditions required a customized 500 ft (152 m) structure. The system included a single 100 ft (30.5 m) bridge span unit and a gate. The client found that we were the only company that could meet the requirements for their nuclear power plant.

Waterside barrier system for dam protection


The Need: The US 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 US 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 large components and equipment to remote locations.