S₁U₁B₃G₂R₁A₁D₂E₁

12 points

SUBGRADE is validvalid

a surface on which a pavement is placed [n SUBGRADES]

84,022 of 196,601 in NWL2023·also valid in CSW24

a surface on which a pavement is placed [n -S]

237,762 of 280,887 in CSW24·also valid in NWL2023