Grading From Curbs Placed at Different Elevations
P/N 7010-0344
5-39
Grading From Curbs Placed at
Different Elevations
In some cases the curbs may be poured at different elevations across
the street. Even though the curb was poured out of tolerance, it may
have passed inspection and the grading needs to be cut from the
incorrect curbs. If the curbs are at different elevations, it is impossible
to grade a typical design slope on both sides of the street. Depending
upon the severity of the error in the curbs, standard grading practices
if System Five may have to be adjusted to meet the job requirement.
A cross section design of a 36 feet wide street a 2.0% slope will
produce a .36 feet rise at centerline.
Figure 5-59.
If the curbs are at different elevations, a .36 feet rise at centerline will
produce incorrect slopes.
Figure 5-60.
.36'RISE
C
L
36.0'
2.0%
2.0%
C
L
2.3%
1.7%
.36'RISE
C
L
36.0'
Summary of Contents for Motorgrader
Page 1: ...OTORGRADER 3YSTEM IVE4 ONTROL OX PERATORlS ANUAL...
Page 2: ......
Page 4: ...ECO 2955...
Page 8: ...Table of Contents Motorgrader System Five Operator s Manual Notes iv...
Page 22: ...System Overview Motorgrader System Five Operator s Manual Notes 1 12...
Page 58: ...Operation Motorgrader System Five Operator s Manual Notes 2 36...
Page 168: ...Safety Information Motorgrader System Five Operator s Manual Notes A 4...
Page 171: ......
