20240731IPC to Staff 22c - Pole spec.pdf

TS-7 POLES AND FIXTURES
A. Poles
a. Setting Poles
Poles shall be set in the ground to the depth shown in the following table.
These depths are to the original ground line. On side hills the ground line
shall be considered to be the lower side of the pole. Actual embedment
depth shall not vary more than plus or minus 6 inches from the embedment
depth shown below. When placing structures on side hills, embedment
depths may be varied within these parameters to insure conductor
attachments are matched. Variable height poles on H-frame structures are
called out as required on severe side slopes. Any deviation from these
embedment depths will be noted in the Structure List.
Length of Embedment
Pole Depth
40' 6.0'
45' 6.5'
50' 7.0'
55' 7.5'
60' 8.0'
65' 8.5'
70' 9.0'
75' 9.5'
80' 10.0'
85' 10.5'
90, 11.0'
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IPC to Staff 22c-Pole spec.docx 8/21/2024

Length of Embedment
Pole Depth
95' 11.5'
B. Steel Poles
a. Handling
Steel structures are painted direct embedded type or self-supporting type
with base plate. They shall be handled in such a manner that the finish,
especially the corrosion inhibiting coating on the base, is not scraped or
scratched by handling equipment, dragging over jagged rocks, etc. The
Contractor shall repair all damage to paint or corrosion inhibiting coating
incurred during construction.
Manufacturer's assembly drawings of the structures shall be provided to the
Contractor after bid award.
b. Assembly
All slip joint structures shall be jacked together in accordance with the
Structure list furnished by the Owner and with the drawings and material list
prepared by the Structure Manufacturer and approved by the Owner.
The jacking method and equipment must be approved by the owner before
construction starts.
The contractor shall record the results of pole jacking on the provided or an
approved log. This log should document actual lap length and force applied
to all splice joints.
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IPC to Staff 22c-Pole spec.docx 8/21/2024

All structures will be assembled, aligned and all bolts tightened and/or
torqued as required by AISC code of Standard Practice. After final
tightening and before any attachment is made to the structures, the
alignment shall be checked.
Connection or erection bolts shall be seated to the head and installed with
nuts to the outside of the member.
Install structural nuts in accordance with the manufacturers
recommendation and tightened to the recommended torque value per bolt
diameter and material. Beveled washers will be used on sloping or beveled
surfaces where required to provide a proper fit.
Only wrenches approved by the Owner will be used on the work. The use
of any wrench that may deform the nut will not be permitted.
All structural metals will be handled with care to avoid bending or damaging.
Pieces bent in handling may be used only if they are straightened in
accordance with procedures set forth by the Manufacturer and approved by
the Owner.
Field welds required for steel structure adjustments and miscellaneous
additions shall not be made without the approval of the Owner.
C. Setting Poles
Direct bury poles shall be set in the ground to the same depth as shown in the
table in Section TS-7 A.b. These depths are to the estimated ground line. On side
hills, the ground line shall be considered to be the lower side of the pole. All
structures shall be fine graded so that the tops of poles shall not exceed two (2)
inches difference in elevation. Actual embedment depth shall not vary more than
plus or minus six (6) inches from the embedment depth shown on the Structure
List without authorization from the Owner. Any deviation from these embedment
depths will be noted in the Structure List which shall govern.
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IPC to Staff 22c-Pole spec.docx 8/21/2024

Foundation poles may be placed after 7 days if strength test results indicate a
minimum of 2500 psi has been achieved. Poles may be loaded after 28 days if
strength test results indicate 4000 psi has been achieved. Poles may not be
placed prior to 7 days or loaded prior to 28 days regardless of strength test results.
All structures shall be constructed in a workman like manner. All poles except for
those that are cambered shall be in alignment with one another and plumb. The
center of the pole top shall be in vertical alignment with the center of the pole at
ground line when viewed from any direction. All poles shall be set plumb at
tangents. The tolerance for pole plumb is one-half percent (1/2%) of the pole
height as observed from both the "in-line" and the "transverse" position. A
minimum amount of "rake" may be pulled in by tightening guys to insure poles on
angles will appear plumb after installation of conductors. Station and structure
number stakes shall be preserved by being placed in the backfill adjacent to the
pole.
Field welds required for steel structure adjustments or groundline and
miscellaneous additions will not be made unless authorized by the Owner.
D. Excavation
Holes shall be a minimum of 12" larger than the butt diameter of the pole and be
large enough to admit the poles, leaving sufficient room for tamping and shall be
approximately the same diameter at the top and bottom. All excavation is
unclassified. No distinction is made between excavation of rock and common
materials.
E. Backfill
a. Direct Embedded Poles and Anchors Native Soil
The Contractor shall backfill each pole hole and/or anchor hole in layers not to
exceed six (6) inches and then the backfill shall be air or hydraulically tamped.
This procedure shall be applied in successive steps to the ground line level. All
backfill must be compacted to 95% of the maximum dry density determined in
accordance with ASTM D-698 — Standard Proctor and be within +2% to —4% of
optimum moisture. No frozen materials or organic matter, such as trees, brush,
scraps, etc., are allowed as backfill.
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IPC to Staff 22c-Pole spec.docx 8/21/2024

b. Direct Embedded Poles and Anchors Select Backfill
Select Backfill shall be %" minus road mix. The select backfill shall be supplied by
the Contractor. The Owner will specify locations where select backfill will be used.
The use of select backfill will depend on the size and type of material removed
from the pole hole excavation, which includes, but is not limited to, holes excavated
by blasting. Where required, select fill shall be placed around the structure to
original grade. Select fill shall be compacted to 95% of the maximum dry density
determined in accordance with ASTM D-698—Standard Proctor and be within +2%
to —4% of optimum moisture.
Placement of select backfill shall be in lifts not exceeding six inches after
compaction. The Owner reserves the right to inspect and/or test each lift for
density compliance prior to placing the next lift.
F. Ground Rods
In areas where ground rods cannot be driven due to rock, a four (4) inch hole shall
be drilled for the rod and filled with non-shrink grout or clay. All Ground rods shall
be placed in undisturbed soil or rock. Ground rods may not be placed in the pole
excavation.
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IPC to Staff 22c-Pole spec.docx 8/21/2024