ETL 1110-1-189
14 Feb 03
Single Wheel Load
One Layer System
Tire Pressure = 80 psi
70
70
65
65
60
60
55
55
50
50
45
45
Single Wheel
40
40
20,000 lbs
15,000 lbs
35
35
10,000 lbs
5,000 lbs
30
30
25
25
20
20
15
15
10
10
5
5
Adapte d From Ste w ard e t al. 1977
0
0
1
10
100
Subgrade Bearing Capacity, CNc, psi
Figure 5. Aggregate-surfaced pavement design curves for single-wheel loads.
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