Does CR4 flood?

CR4 4BB up to High CR4 4DH up to High CR4 4HU up to High CR4 4HW up to High CR4 4JS up to High CR4 4JT up to High CR4 4BU up to Medium CR4 4DB up to Medium CR4 4DD up to Medium CR4 4DG up to Medium CR4 4DJ up to Medium CR4 4DL up to Medium CR4 4DP up to Medium CR4 4DQ up to Medium CR4 4DS up to Medium CR4 4DT up to Medium CR4 4DU up to Medium CR4 4DW up to Medium CR4 4FD up to Medium CR4 4FF up to Medium CR4 4FN up to Medium CR4 4FQ up to Medium CR4 4HY up to Medium CR4 4JP up to Medium CR4 4JX up to Medium CR4 4JY up to Medium CR4 4JZ up to Medium CR4 4NP up to Medium CR4 4RT up to Medium CR4 3BY up to Low CR4 3BZ up to Low CR4 3FS up to Low CR4 4BA up to Low CR4 4BL up to Low CR4 4BN up to Low CR4 4BP up to Low CR4 4BR up to Low CR4 4DA up to Low CR4 4DN up to Low CR4 4EU up to Low CR4 4EW up to Low CR4 4EX up to Low CR4 4FE up to Low CR4 4FL up to Low CR4 4FP up to Low CR4 4FR up to Low CR4 4FS up to Low CR4 4FT up to Low CR4 4FX up to Low CR4 4FY up to Low CR4 4HR up to Low CR4 4HX up to Low CR4 4HZ up to Low CR4 4JH up to Low CR4 4JL up to Low CR4 4JN up to Low CR4 4JQ up to Low CR4 4JU up to Low CR4 4LT up to Low CR4 4NA up to Low CR4 4NW up to Low CR4 4TQ up to Low CR4 4TU up to Low CR4 4UY up to Low