Trinity Highway CASS TL3 - Sleeve in Poured Concrete Footing; Sleeve in Mow Strip

TrinityHighway.com 16 Revision A November 2021
Sleeve in Poured Concrete Footing
Complete the following steps for placing a sleeve in a poured concrete footing.
1. Place a plastic cap (PN-5833) on the bottom of the foundation sleeve (PN-33985G) or
tape the bottom end of the foundation sleeve to prevent the concrete from coming into the
tube.
2. Punch or auger a minimum 12” [300 mm] diameter x 30” [762 mm] deep hole for the
concrete footing.
3. Pour the MSC in the hole so the concrete is flush with the finish grade.
4. Place the foundation sleeve in the poured concrete footing. Ensure that the sleeve is
positioned plumb, flush with the top of the footing, properly oriented (with interior tabs 15”
[375 mm] from the top of the tube sleeve and the 3” [75 mm] side parallel to the roadway),
and in alignment. Consolidate the concrete to remove air pockets in compliance with
applicable state specifications for similar applications.
5. a minimum of 4” [100 mm] from the edge of the footing, and in alignment.
6. Place a rebar ring (PN-5836B) around the top of the sleeve 2” to 3” [50 mm to 75 mm]
from the top of the footing.
7. Smooth off the top of the concrete footing with a slight crown from the sleeve.
8. Allow the footing to attain the required concrete strength before disturbing the foundations,
including the placement of posts.
Sleeve in Mow Strip
When a mow strip is used that meets the criteria in drawing SS 720, sleeve (PN-33938G) may be
used.
Complete the following steps for placing a sleeve in a mow strip.
Footing utilized with a qualified Mow Strip Assembly
1. Place a plastic cap (PN-5833) on the bottom of the foundation sleeve (PN-33938G) or tape
the bottom end of the foundation sleeve to prevent the concrete from coming into the tube.
Monolithic Pour:
A. Punch or auger a minimum 12” [300 mm] diameter hole, 24” [600 mm] deep for the
concrete footing. The MCS will be placed in the hole as part of the mow strip poured.
B. Proceed to step 3 below.
Footings Placed after the Construction of the Mow Strip:
A. Place leave-out material at each footing location in the strip to allow the footing hole to be
augered or punched after the mow strip is constructed.
B. Proceed to step 3 below.
2. Pour the MSC.
3. Consolidate the concrete to remove air pockets in compliance with applicable state
specifications for similar applications.
4. Place the foundation sleeve plumb and in alignment with the string line, ensuring a minimum
of 3” [75 mm] of concrete surrounds the sleeve on all sides, and the top is flush with the top
of the concrete footing.
5. Smooth off the top of the concrete footing with a slight crown from the sleeve.