Protect Facilities from Floods with Passive Flood Barriers

One inch of water can cause $25,000 in damage. Flooding is the most common natural disaster in the United States. Floods can occur across the United States, with all rivers at risk of potentially flooding. 

For facilities, a solution must be found to limit damage in case of a flood. The Passive Doorway Flood Barrier installs easily in existing doorways, and stores horizontally, permitting normal personnel and vehicular traffic, until a flood occurs. With the first flow of water the Barrier automatically closes. Your facility is protected 24/7.

Flood Facts

Did you know?

  1. 40% of small business never reopen following a flood disaster.

  2. One inch of water can cause $25,000 in damage.

  3. Flood cause an average $8 billion in damages each year

How to Be Proactive

It is the employer's responsibility to protect workers from potential hazards. Additionally, employers must find ways to protect their facility from costly damage in case a disaster occurs.

What causes a flood?

Floods can occur for a number of reasons. According to FEMA:

  • Rivers and lakes cannot contain excessive rain or snowmelt
  • Excessive rain or snowmelt cannot be fully absorbed into the ground
  • Waterways are blocked with debris or ice and overflow
  • Water containment systems break, such as levees, dams, or water or sewer systems
  • Strong winds from tropical storms or hurricanes cause a storm surge by pushing seawater onto land
What causes a flood?

Understanding Your Flood Risk

One way to be proactive against a flood is to know the flood risk in your area. According to FM Global, "Ongoing analysis shows that a site within a published flood zone is five to seven times more likely to suffer a flood loss than to suffer an equivalent loss due to fire or explosion."

Even if you are located in an area that has a low flood risk, it is still possible your facility may flood. According to FEMA, "Flooding is the nation's number one natural disaster, and it can occur inland, along the coast, and across every region of the country. Even though you may think your community has little or no risk of flooding, the reality is that anywhere it rains, it can flood." More than 20 percent of flood claims come from properties outside of high-risk zones.

Use the FEMA Flood Map Service to see the risk in your area.

Flood warning system
Flood Watch:

Flooding is possible. Monitor radio and television stations for more information. Flash Flood Watch: Flash flooding is possible. Be prepared to move to higher ground; monitor radio and television stations for more information.

Flood Warning:

Imminent threat – Flooding is occurring or will occur soon; if advised to evacuate, do so immediately.

Flash Flood Warning:

Imminent threat – A flash flood is occurring of will occur soon; seek higher ground on foot immediately.



Creating an evacuation plan

Having an evacuation plan in place before a flood occurs can help avoid confusion and prevent injuries and property damage. According to OSHA, a thorough evacuation plan should include:

  • Conditions that will activate the plan
  • Chain of command
  • Emergency functions and who will perform them
  • Specific evacuation procedures, including routes and exits
  • Procedures for accounting for personnel, customers and visitors 
  • Equipment for personnel
  • Review the plan with workers

Passive Doorway Flood Barrier

A flash flood can strike with little warning. The Passive Doorway Flood Barrier keeps you protected with fully automatic operation. The barrier is activated by water, no external power source or compressed air is required for its operation.

Passive Doorway Flood Barriers can be easily installed in existing doorways. When not deployed, the Passive Doorway Flood Barrier stores flat in the floor, eliminating the need for ramps or berms. The Passive Doorway Flood Barrier permits normal vehicular and personnel traffic, until a flood occurs. With the first flow of water the Barrier automatically closes. The Passive Doorway Flood Barrier provides all the durable construction and operational characteristics of our Doorway Spill Barrier, but is designed specifically for flood waters. 

  • Solid welded stainless-steel construction

  • Self-contained one-piece system design

  • Fully automatic operation, no external power source or factory compressed air required

  • While lying flat, Barrier provides up to 6.5 tons axle weight capacity

  • Door heights of 12, 18, and 24 inches. Widths from 3 to 12 feet

  • Flexible design allows installation either inside or outside exterior doors

  • FM Approved

Passive Doorway Flood Barrier Regulations & Approvals

The DENIOS Passive Flood Barrier System is FM Approved (Class 2510). According to FM Global, "FM Approved flood abatement products have met the requirements of one of the most rigorous certification standards in the world, including full-scale riverine simulation testing as well as individual component testing. This unique third-party certification helps set these products apart from others on the market."

How is it tested?

Approval Standard 2510 testing consists of two main phases:

  • Component and material testing. Because the materials of construction and mode of operation varies significantly among manufacturers of flood abatement equipment, specific material tests are assigned on a case-by-case basis. These tests could include hydrostatic strength, system leakage, durability, impact/wear resistance, vibration, corrosion, hail resistance, tensile strength, ultraviolet, air-oven aging, biological degradation, and temperature extremes.

  • Performance testing. Performance testing of barriers is designed to simulate actual riverine flooding conditions at depths not greater than 3 ft (0.9 m) on full-scale barriers.

  • Tests are divided into three categories for temporary perimeter barriers: 1) hydrostatic loading and incidental wave, 2) wave-induced hydrodynamic loading conditions, and 3) optional hydrodynamic loading and special application.

  • Performance testing of opening barriers is designed to simulate quasi-static riverine flooding (i.e., slow rising and receding flood waters with minimal wave exposure). The tests are divided into two categories: hydrostatic loading, and 2) dynamic impact loading.

  • Guidelines for the testing backflow preventers and sump pumps are being developed.

Keep floodwaters out of your facilities with the DENIOS Passive Flood Barrier. The Barrier is available in door heights of 12,18 and 24 inches. Widths are available from 3 to 12 feet. 


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