Lindsay Transportation Solutions Sales and Services, Inc
(888) 800-3691 [U.S. toll free] or +1 (707) 374-6800
7
X-TENsIoN
®
sysTEM
X-Tension – Preparation for all Applications
Preparation
Before installing an X -Tension, ensure that all materials required for an 11.4 m (38 ft) system
are on site and have been identified. See bill of materials for the particular application and parts
identification sheet.
Ensure that the area where the X-Tension is to be installed is flat enough so that the soil anchor
will not protrude more than 100mm (4 in) from ground level, when measured with a straight line
over a 1.5m (5 ft) cord. Minor site grading may be required.
Soil Conditions
The X-Tension has been designed to be installed in median or edge of road locations and in soil
that meets or exceeds the AASHTO “standard soil” specification. If rock or saturated soil is en
-
countered during post installation, refer to appropriate State specifications. Guidelines will vary
from State to State.
Tools Required
The same tools required to install standard highway guardrail will also install an X-Tension.
Spe-
cifically:
Sockets (commonly used in Guardrail), Drill, Wrenches, Large Crow Bar, String line,
Level, Augers, Tampers and Post Pounders commonly used in driving posts.
Before Starting
For all applications
, begin the installation from the downstream end of the terminal at the point
where it joins the standard guardrail (post 7).
For the tangent and flared applications, the X-Tension connects directly to standard steel post or
timber post strong post W – beam highway guardrail, SGR04a-b.
The median application X-Tension connects directly to standard steel post or timber post
strong post W-beam median barrier SGM04a-b
Follow step by step instructions for the appropriate application.
Important Note about posts and blockouts:
Tangent & Flared Systems:
Post 1 steel – Post 2 either CRT timber or crimped steel
Post 3-6 either CRT timber or standard steel I beam posts
Median system:
Posts 1 & 2 are always crimped steel.
Posts 3 – 6 are standard steel I beam posts
Blockouts may be either composite or timber.
