What is Flood Network?


Our low-cost wireless sensors harness the power of the Internet of Things to give you updates about waterways, culverts, rivers, ditches and even groundwater. They're battery powered and connect wirelessly to a gateway which sends the data back to our system using the Internet. A web map visualises your waterways and their levels at https://map.flood.network 

If you own sensors you can view and analyse your data in detail, export data and manage your devices.


What does it do?

The information helps people to make better decisions during floods and quickly shares knowledge of a changing situation. We combine Environment Agency data with yours and other sensors to give a near real-time picture of levels.

With a subscription you and a group of members can be alerted by SMS or email as water levels change. You can manage your data and devices more closely and analyse the data, choosing whether to publish as open data.


New hardware


Flood Network's 3rd Generation hardware is now available. It uses a long-range low-power wireless technology called LoRaWAN, allowing our monitors to connect over several kilometres without using the mobile network. It's routed through any gateway connected to The Things Network, an open, free worldwide IoT sensor network anyone can help build.

The new sensors are being piloted by City of Bradford Metropolitan District Council and City of Cardiff Council and are planned for the Upper Calder Valley.



You can install a Flood Monitor and see your readings live on the map every 15 minutes. Flood Monitors are available to organisations, groups or individuals who'd like an unobtrusive, low-cost way of monitoring water levels and contributing this to a bigger community.  

They're also suitable for catchment studies and managers who can use them to gather data on things like the success of alleviation schemes and effectiveness of natural flood management.