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Created November 2021
Appendix D: Base Plated Post Assembly
The base plated post (PN-33993A) must be placed on a concrete surface 6” [150 mm] or more in
depth (See Figure 11). The post length varies per concrete elevation. The center of the yielding
holes are approximately 2’-6 1/4” from the top of the post.
Complete the following steps for the base plated post assembly.
1. Drill four (4) 3/4” [19 mm] holes, 6” [150 mm] deep for the rod (PN-5225G or PN-6722G).
2. Clean the holes according to the adhesive manufacturer’s recommendations.
3. Place the rods and adhesive in the holes according to the manufacturer’s
recommendations.
Note:
A 5/8” [16 mm] mechanical anchor with a pull out strength of 10,000 lbs. [4,536 kg] can
also be used.
4. Allow the adhesive to cure according to the manufacturer’s recommendations.
5. Place the base plated post on the rods.
6. Place flat washer (PN-3300G) and lock washer (PN-3310G) between the hex nut (PN-
3361G) and the base plate (See Figure 11).
7. Tighten the nuts to a snug position with an appropriately sized wrench or socket and the
lock washer is flat with a minimum of two (2) threads showing.
Note:
Base plated post assembly for below grade applications, contact Trinity Highway.
