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Traffic Safety Systems

Solar High Water Detection & Flood Warning Systems

Solar high water detection and flood warning systems, beacons and signs that alert traffic to dangerous road conditions the moment water starts to rise.

Solar-powered • Weatherproof • Virtually maintenance-free

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An environmentally friendly way to warn about rising water

Solar Lighting International has created an innovative and environmentally friendly solution for monitoring and warning about potential flood hazards. Solar-powered warning systems use solar panels to convert sunlight into electricity, which then powers sensors, radio transmitters, and warning flashing beacon systems. Sensors are placed strategically at bridge foundations, river banks, creek beds, and other flood-prone areas to detect rising water levels and send a signal that activates our advanced warning systems.

The flood warning system can also alert a central monitoring system, which in turn activates warning sirens, alarms, and other warning devices. As global weather grows less predictable, high water and flood warning systems are becoming a more prevalent requirement for roads and bridges.

High Water When Flashing solar warning sign illustration Beacon Sign
High Water When Flashing RRFB warning system illustration RRFB System

When the water rises, the warning is already flashing, powered entirely by the sun.

Flood detection that never sleeps

Reliable warning,
with no grid
to fail.

Because the system is self-sustaining, there are no ongoing electricity costs and no chance of the power failing: a redundant, reliable, cost-effective solution for remote or off-grid locations where public safety is paramount.

Easy to install, low maintenance

Relatively easy to install and requiring very little maintenance. Solar panels and battery systems are built to withstand high winds, heavy rain, ice storms, and snowfall, so they keep working in the most challenging long-term environments.

Self-sustaining & off-grid

No ongoing electricity costs and no chance of the power failing. The self-sustaining design makes it a redundant, reliable, cost-effective solution for remote or off-grid locations.

Instant, accurate detection

Sensors detect rising water levels instantly and with a high degree of accuracy, activating the warning poles the moment a flood begins. Critical for flash-flood-prone areas, where reducing pedestrian and driver risk is the main goal.

Flexible, customizable design

Sensors and radio activation can send repeater-like signals down a river faster than the rising water, vital for dam releases. Every system can be tailored to the unique characteristics of each river, stream, or water body.

Engineered features that keep the warning on.

Every high water system is designed to activate the moment it matters, then run unattended in the field, powered only by the sun.

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  • Detects rising water levels to trigger the LEDs to flash
  • Automatic light output for maximum efficiency
  • Super bright LEDs
  • Weatherproof enclosure
  • Ultra slim design
  • Simple installation
  • Solar power allows this system to be used virtually anywhere

Who relies on SLI flood warning systems

Solar high water and flood warning systems are cost-effective, environmentally friendly, reliable, and flexible: a smart choice for organizations protecting communities from flooding and fast-rising water. They can also be integrated with traditional flood warning systems, such as gauges and meteorological data, for maximum accuracy and reliability. The initial cost may be higher, but the long-term life-saving benefits far outweigh it.

MUNI Municipalities Roads, bridges & low-water crossings
EMA Emergency Management Community flood-response agencies
DNR Natural Resources Rivers, creeks & dam releases
USACE Army Corps of Engineers Dam & waterway safety

Literature & spec sheets

Click a document below to download the corresponding PDF.

**SLI reserves the right to change any part specified, at any time, to meet system requirements and availability.**

In the Field

Wireless sensors trigger the beacon the moment the road floods.

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Flood Warning Quote

Ready to learn more about solar high water warning systems for your site? Get in touch and one of our representatives will help you find out how solar warning systems can protect your community. We will return your email promptly.

Prefer to talk it through? Call +1 (803) 233-3461. We respond to every request within 24 hours.

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