February 2021 |
Page
10
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Product & Installation Manual: Sentry Barrier™
KEEPING
NZ SAFE
Horizontal and Vertical Curves
The Sentry Barrier™ can accommodate both
horizontally and vertically curved guardrail
panels if required by site conditions. For radii
less than 25 m the system must be anchored
with an approved intermediate anchor or
terminal end. Please refer to approved details
of the local Road Controlling Authority where
necessary.
Undulating Ground Conditions
Site specific grading may be necessary to
ensure that there are no ‘humps’ or ‘hollows’
that may significantly alter the impacting
vehicles stability or substantially alter the
W-Beam heights in relation to the ground. The
Sentry Barrier™ is required to be installed level
and centred on the barrier line as stated in the
Installation Procedure.
Care must be taken to ensure all posts in the
Sentry Barrier™ are installed to the correct
height, alignment and orientation. It is strongly
recommended that smoothing of uneven ground
conditions be completed along the length of the
Sentry Barrier™.
Concave
corner
Convex
corner
