The ornamental design for a buildingcomponent for a noise barrier retaining wall, as shown.
FIG. 1 is a plan view of a building component for a noise barrier retaining
wall, illustrating the profile of the building component for a noise
barrier retaining wall as viewed from above, as well as an interconnecting
feature of the building component for a noise barrier retaining wall of
the present invention;
FIG. 2 is an elevational view showing one side of the building component
for a noise barrier retaining wall of the present invention;
FIG. 3 is an end view of the building component for a noise barrier
retaining wall of the present invention; and,
FIG. 4 is an elevational view showing a side of the building component for
a noise barrier retaining wall which is opposite to that shown in FIG. 2.