Topband: intersecting ground radials

[Bob Kupps]

Hi I would like to place monopoles for 160 and 80m bands 30m apart causing their ground radials to intersect. The radials are #20 bare copperweld (since I happen to have 4000m) that would be laid out on top of the soil before turf was placed on top. These antennas would be used for transmitting only and never at the same time. Is it necessary to solder the intersecting wires together where they cross for any reason like they recommend for phased arrays? Naturally I hope not...

TIA & 73 Bob