ACN and ACR Calculator
Vehicle
                Min Load      kips      Max Load      kips
Surface Type
  
   
Display
  
Calculation Mode
   
                  Load Kips
  ACN
Subgrade Cat A  
Subgrade Cat B  
Subgrade Cat C  
Subgrade Cat D  
     
*NEW AF-GROUP01
ACN Value for Flexible Subgrade Category (CBR, %)ACN Value for Rigid Subgrade Category (K, pci)
Load (kips)A (CBR >= 13)B (8 < CBR < 13)C (4 < CBR <= 8)D (CBR <= 4)A (K >= 442)B (221 < K < 442)C (92 < K <= 221)D (K <= 92)
4.41.51.71.71.71.51.61.61.6
26.89.410.210.310.69.59.79.99.9
40.114.115.215.415.914.314.614.814.8