Map of Blackbrook (St. Helens, Merseyside) postcodes and their flood risks. Each postcode is assigned a risk of high, medium, low, or very low, and then plotted on a Blackbrook flood map. Most Blackbrook postcodes are medium flood risk, with some high flood risk postcodes.
| Place | Distance |
|---|---|
| Stanley Bank flood map | 387 m |
| Haydock flood map | 1.0 km |
| Laffak flood map | 1.6 km |
| North Florida flood map | 1.6 km |
| Carr Mill flood map | 2.2 km |
| Parr Stocks flood map | 2.2 km |
| Parr flood map | 2.2 km |
| Finger Post flood map | 2.3 km |
| Haresfinch flood map | 2.3 km |
| Clinkham Wood flood map | 2.7 km |