TrinityHighway.com
14
Created November 2021
SRT™ 31 System Post Placement
The SRT™ 31 System posts may be inserted into the soil using an auger or post pounding equipment
for placement of guardrail posts. If an auger is used, ensure diameter is large enough to allow for proper
compaction of state/specifying agency approved fill material. All SRT™ 31 System posts must be
assembled within established standard construction tolerances, including being plumb. Compaction for
all posts must be within state/specifying agency guidelines.
Danger:
It is the responsibility of the installer to ensure all above & below ground utilities
as well as drainage structures are located, marked, and identified prior to using an auger
or post pounding tool in accordance with state/specifying agency guidelines. Failure to
follow this warning could result in serious injury or death.
Rigid Pavement and Rock
If rigid pavement (e.g. concrete or asphalt) of any thickness is encountered within the system pay length,
ensure a proper “leave-out” area (the specified size of open space as defined in the AASHTO Roadside
Design Guide) is provided around the posts and filled with state/specifying agency approved backfill
material. See Appendix B for “leave-out” requirements of the SYTP
®
.
If rock is encountered within the system pay length, follow the criteria as defined in the AASHTO Roadside
Design Guide. See Appendix C for requirements for the assembly of the CR Post 1 Bottom or SYTP
®
.
Drilling Holes into Rock
Caution: It is the responsibility of the installer to consult Occupational Safety & Health
Administration (“OSHA”) silica respiratory standard 29 Code of Federal Regulation (“CFR”)
1910.134 for debris removal and ensure compliance.
Assembly Steps
NOTE: The order in which the steps appear in this manual are not necessarily the order
in which they must be followed. ALL STEPS MUST BE COMPLETED
.
Important: Trinity Highway does not direct grading.
Proper site grading must be
accomplished before assembly of the SRT™ 31 System in accordance with
state/specifying agency guidelines OR the AASHTO Roadside Design Guide (see
Appendix A), whichever is more stringent. Failure to follow this warning could result in
serious injury or death in the event of a vehicle impact with the system.
Note: Below ground portions in the assembly steps are not shown for clarity.
