Post on 09-Nov-2020
Connector Bolts (4)
SCD NUMBER
SHEET
DESIGN AGENCY
TOTAL
HL-10.13
1
PO
LE
BA
SE
DE
TA
ILS
1
REVISIONS
ENGINEERING
ROADWAY
OFFICE OF
01-16-201507-17-201501-15-201607-15-201601-20-201707-20-201801-17-202004-17-2020
STDS ENGINEER
Duemmel
TR
AN
SP
OR
TA
TIO
N A
DM
INIS
TR
AT
OR
ST
AT
E O
F O
HIO
DE
PA
RT
ME
NT
OF
David
L. H
ols
tein
(Varmint Guard Required, See Note 7)
4"
1 -
2 B
olt
Dia
mete
rs
Anchor Bolt
Pole
Bolt Circle
TYPE
AT-A
AT-C
13"
15" 15"
CONNECTOR BOLTS
BOLT CIRCLE BOLTS
13" 1"
1 ¼"
15"
17"
15"
17"
BOLTS
1" x 40"
1 ¼" x 49"
TYPE
ST-A
ST-C
ST-B
13"
15"
15"
17"
17"
22"
BOLTS
1"
1 ¼"
1 ½"
16"
18"
25"
1" x 40"
1 ¼" x 49"
1 ½" x 60"
BOLT CIRCLEBOLT CIRCLE BOLTS
CONNECTOR BOLTS
BOLT CIRCLE
Plate
Pole Base
Foundation
Concrete
by Manufacturer
Special Flat Washer
Hole for Grounding
" - ½" Tapped �
by ManufacturerSpecial Flat Washer
13"
15"
17"
S
W
W
S W S W
Base
ON TRANSFORMER BASE(See Note 8)
ALUMINUM TRANSFORMER BASES (See Note 8) STEEL TRANSFORMER BASES (See Note 8)
ON MEDIAN BARRIER
Plain WashersPlain WashersPole
Base
1 -
2 B
olt D
iam
ete
rs
(See Note 7)Varmint Guard
ON CONCRETE FOUNDATION
20
" m
ax.
(Ste
el) (
Se
e N
ote
9)
1
7"
ma
x.
(Alu
m.)
Dia
mete
rs5-6
Bolt
Dia
mete
rs5-6
Bolt
STEEL ANCHOR BASES
(Varmint Guard Required, See Note 7)
1 -
2 B
olt D
iam
ete
rs Pole
Base Plain WashersPlain Washers
Pole
Base
1 -
2 B
olt D
iam
ete
rs
ON CONCRETE FOUNDATION
(Typ.)8" x 13"
Access Door
ANCHOR BOLTS (Note 1) (Note 6)
Note 10Note 10
(Note 1)
ANCHOR BOLTS (Note 1) (Note 6)
ON MEDIAN BARRIER(Note 1)
ALUMINUM ANCHOR BASES(Note 10)
BOTTOM OF TRANSFORMER BASE
column of the tables.Minimum anchor bolt length is given in the Anchor Boltsgiven in the Connector Bolts column of the table below.and diameter should match one of the combinations bolt circle, bolt diameter, and bolt length. Bolt circleCoordinate with pole manufacturer to determine required11.
nuts.may be mounted flush to the concrete without levelingtolerance: +/- 1/2 degree. Only aluminum anchor basesif approved by the pole manufacturer. PlumbingUse shims of aluminum for plumbing, or other material10.
Per NCHRP-350.9.
supports. Steel transformer bases do not.Aluminum cast transformer bases qualify as breakaway8.
steel or galvanized, with openings no larger than ⅜".welded wire mesh or expanded metal sheet, stainlessstainless steel wire ties. Guard shall be solid sheet,minimum 2" overlap. Tie overlapping screen withAttach varmint guard with stainless steel band and7.
HL-20.13. L-bends shall not be used.Anchor bolts shall be headed or nutted per SCD6.
indicated in the structure plans.the anchor bolt shape and length will be modified asFor poles mounted on pilasters on bridge parapets,5.
where overhead wiring is required.Cast aluminum transformer bases shall not be used4.
excess of manufacturer's rated limits for base.Breakaway bases shall not be used under pole in3.
For pole grounding details see SCD HL-60.11.2.
HL-20.13.indicated on Standard Construction Drawing (SCD) Anchor Bolt dimensions will be modified asFor median-mounted poles, Pole Base Plate and1.
:NOTES
Note 11 Note 11
Note 11 Note 11
Connector Bolts (4)
W
EN
GIN
EE
RIN
G
RO
AD
WA
Y
OF
FIC
E
OF
1 1
PO
LE
BA
SE
DE
TAIL
S
ST
AN
DA
RD R
OA
DW
AY C
ON
ST
RU
CTIO
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CD
NU
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ER
HL-10.1
3
EN
GIN
EE
R
ST
DS.
RE
VISIO
N
DA
TE
TR
AN
SP
OR
TA
TIO
N
AD
MINIS
TR
AT
OR
ST
AT
E
OF
OHIO
DEP
AR
TM
EN
T
OF
01-
17-2020
David L.
Holstein
Due
mmel
THIS
DR
AWIN
G R
EP
LA
CES
HL-10.13
DA
TE
D 07-20-2018.
4"
1 - 2 Bolt
Dia
meters
Pole
Bolt Circle
TYPE
AT-A
AT-C
13"
15" 15"
CONNECTOR BOLTS
BOLT CIRCLE BOLTS
13" 1"
1 ‚"
15"
17"
15"
17"
BOLTS
1" x 40"
1 ‚" x 49"
TYPE
ST-A
ST-C
ST-B
13"
15"
15"
17"
17"
22"
BOLTS
1"
1 ‚"
1 •"
16"
18"
25"
1" x 40"
1 ‚" x 49"
1 •" x 60"
BOLT CIRCLEBOLT CIRCLE BOLTS
CONNECTOR BOLTS
BOLT CIRCLE
Plate
Pole Base
Foundation
Concrete
by Manufacturer
Special Flat Washer
Hole for Grounding
Š" - •" Tapped
by Manufacturer
Special Flat Washer
13"
15"
17"
S
W
S W S W
Base
ON TRANSFORMER BASE(See Note 8)
ALUMINUM TRANSFORMER BASES (See Note 8) STEEL TRANSFORMER BASES (See Note 8)
ON MEDIAN BARRIER
Plain WashersPlain WashersPole
Base
1 - 2 Bolt
Dia
meters
(See Note 7)
Varmint Screen
ON CONCRETE FOUNDATION
20"
max. (Steel) (S
ee
Note 9)
17
" max. (Alu
m.)
Dia
meters
5-6 Bolt
Dia
meters
5-6 Bolt
STEEL ANCHOR BASES
(Varmint Screen Required, See Note 7)
1 - 2 Bolt
Dia
meters
Pole
Base Plain WashersPlain Washers
Pole
Base
1 - 2 Bolt
Dia
meters
ON CONCRETE FOUNDATION
ANCHOR BOLTS (Note 1) (Note 6)
Note 10Note 10
(Note 1)
ANCHOR BOLTS (Note 1) (Note 6)
ON MEDIAN BARRIER(Note 1)
ALUMINUM ANCHOR BASES
(Note 10)
BOTTOM OF TRANSFORMER BASE
Note 11 Note 11
Note 11 Note 11
column of the tables.
Minimum anchor bolt length is given in the Anchor Bolts
given in the Connector Bolts column of the table below.
and diameter should match one of the combinations
bolt circle, bolt diameter, and bolt length. Bolt circle
11. Coordinate with pole manufacturer to determine required
nuts.
may be mounted flush to the concrete without leveling
tolerance: +/- 1/2 degree. Only aluminum anchor bases
if approved by the pole manufacturer. Plumbing
10. Use shims of aluminum for plumbing, or other material
9. Per NCHRP-350.
supports. Steel transformer bases do not.
8. Aluminum cast transformer bases qualify as breakaway
or galvanized, with openings no larger than …".
wire mesh or expanded metal sheet, stainless steel
stainless steel wire ties. Screen shall be welded
minimum 2" overlap. Tie overlapping screen with
7. Attach varmint screen with stainless steel band and
HL-20.13. L-bends shall not be used.
6. Anchor bolts shall be headed or nutted per SCD
indicated in the structure plans.
the anchor bolt shape and length will be modified as
5. For poles mounted on pilasters on bridge parapets,
where overhead wiring is required.
4. Cast aluminum transformer bases shall not be used
excess of manufacturer's rated limits for base.
3. Breakaway bases shall not be used under pole in
2. For pole grounding details see SCD HL-60.11.
HL-20.13.
indicated on Standard Construction Drawing (SCD)
Anchor Bolt dimensions will be modified as
1. For median-mounted poles, Pole Base Plate and
:NOTES
(Typ.)
8" x 13"
Access Door
Anchor Bolt (4)
EN
GIN
EE
RIN
G
RO
AD
WA
Y
OF
FIC
E
OF
1 1
PO
LE
BA
SE
DE
TAIL
S
ST
AN
DA
RD R
OA
DW
AY C
ON
ST
RU
CTIO
N
DR
AWIN
GS
CD
NU
MB
ER
HL-10.1
3
`̀`̀`
EN
GIN
EE
R
ST
DS.
RE
VISIO
N
DA
TE
TR
AN
SP
OR
TA
TIO
N
AD
MINIS
TR
AT
OR
ST
AT
E
OF
OHIO
DEP
AR
TM
EN
T
OF
07-20-2018
David L.
Holstein
Due
mmel
THIS
DR
AWIN
G R
EP
LA
CES
HL-10.13
DA
TE
D 01-
20-2017.
4"
1 - 2 Bolt
Dia
meters
Anchor Bolt
Pole
Bolt Circle
TYPE
AT-A
AT-C
13"
15" 15"
CONNECTOR BOLTS
BOLT CIRCLE BOLTS
13" 1"
1 ‚"
15"
17"
15"
17"
BOLTS
1" x 40"
1 ‚" x 49"
TYPE
ST-A
ST-C
ST-B
13"
15"
15"
17"
17"
22"
BOLTS
1"
1 ‚"
1 •"
16"
18"
25"
1" x 40"
1 ‚" x 49"
1 •" x 60"
BOLT CIRCLEBOLT CIRCLE BOLTS
CONNECTOR BOLTS
BOLT CIRCLE
Plate
Pole Base
Foundation
Concrete
by Manufacturer
Special Flat Washer
Hole for Grounding
Š" - •" Tapped
by Manufacturer
Special Flat Washer
13"
15"
17"
S
W
W
S W S W
Base
ON TRANSFORMER BASE(See Note 8)
ALUMINUM TRANSFORMER BASES (See Note 8) STEEL TRANSFORMER BASES (See Note 8)
ON MEDIAN BARRIER
Plain WashersPlain WashersPole
Base
1 - 2 Bolt
Dia
meters
(See Note 7)
Varmint Screen
ON CONCRETE FOUNDATION
20"
max. (Steel) (S
ee
Note 9)
17
" max. (Alu
m.)
Dia
meters
5-6 Bolt
Dia
meters
5-6 Bolt
STEEL ANCHOR BASES
(Varmint Screen Required, See Note 7)
1 - 2 Bolt
Dia
meters
Pole
Base Plain WashersPlain Washers
Pole
Base
1 - 2 Bolt
Dia
meters
ON CONCRETE FOUNDATION
(Typ.)
8" x 13"
ANCHOR BOLTS (Note 1) (Note 6)
Note 10Note 10
(Note 1)
ANCHOR BOLTS (Note 1) (Note 6)
ON MEDIAN BARRIER(Note 1)
ALUMINUM ANCHOR BASES
(Note 10)
BOTTOM OF TRANSFORMER BASE
column of the tables.
Minimum anchor bolt length is given in the Anchor Bolts
given in the Connector Bolts column of the table below.
and diameter should match one of the combinations
bolt circle, bolt diameter, and bolt length. Bolt circle
11. Coordinate with pole manufacturer to determine required
tolerance: +/- 1/2 degree.
if approved by the pole manufacturer. Plumbing
10. Use shims of aluminum for plumbing, or other material
9. Per NCHRP-350.
supports. Steel transformer bases do not.
8. Aluminum cast transformer bases qualify as breakaway
or galvanized, with openings no larger than …".
wire mesh or expanded metal sheet, stainless steel
stainless steel wire ties. Screen shall be welded
minimum 2" overlap. Tie overlapping screen with
7. Attach varmint screen with stainless steel band and
HL-20.13. L-bends shall not be used.
6. Anchor bolts shall be headed or nutted per SCD
indicated in the structure plans.
the anchor bolt shape and length will be modified as
5. For poles mounted on pilasters on bridge parapets,
where overhead wiring is required.
4. Cast aluminum transformer bases shall not be used
excess of manufacturer's rated limits for base.
3. Breakaway bases shall not be used under pole in
2. For pole grounding details see SCD HL-60.11.
HL-20.13.
indicated on Standard Construction Drawing (SCD)
Anchor Bolt dimensions will be modified as
1. For median-mounted poles, Pole Base Plate and
:NOTES
Note 11 Note 11
Note 11 Note 11
EN
GIN
EE
RIN
G
RO
AD
WA
Y
OF
FIC
E
OF
1 1
PO
LE
BA
SE
DE
TAIL
S
ST
AN
DA
RD R
OA
DW
AY C
ON
ST
RU
CTIO
N
DR
AWIN
GS
CD
NU
MB
ER
HL-10.1
3
`̀`̀`
EN
GIN
EE
R
ST
DS.
RE
VISIO
N
DA
TE
TR
AN
SP
OR
TA
TIO
N
AD
MINIS
TR
AT
OR
ST
AT
E
OF
OHIO
DEP
AR
TM
EN
T
OF
01-
20-2017
David L.
Holstein
Due
mmel
THIS
DR
AWIN
G R
EP
LA
CES
HL-10.13
DA
TE
D 07-15-2016.
4"
1 - 2 Bolt
Dia
meters
Anchor Bolt
Pole
Bolt Circle
TYPE
AT-A
AT-C
13"
15" 15"
CONNECTOR BOLTS
BOLT CIRCLE BOLTS
13" 1"
1 ‚"
15"
17"
15"
17"
BOLTS
1" x 40"
1 ‚" x 49"
TYPE
ST-A
ST-C
ST-B
13"
15"
15"
17"
17"
22"
BOLTS
1"
1 ‚"
1 •"
16"
18"
25"
1" x 40"
1 ‚" x 49"
1 •" x 60"
BOLT CIRCLEBOLT CIRCLE BOLTS
CONNECTOR BOLTS
BOLT CIRCLE
Plate
Pole Base
Foundation
Concrete
by Manufacturer
Special Flat Washer
Hole for Grounding
Š" - •" Tapped
by Manufacturer
Special Flat Washer
BOTTOM OF BASE
13"
15"
17"
S
W
W
S W S W
Base
ON TRANSFORMER BASE(See Note 8)
ALUMINUM TRANSFORMER BASES (See Note 8) STEEL TRANSFORMER BASES (See Note 8)
ON MEDIAN BARRIER
Plain WashersPlain WashersPole
Base
1 - 2 Bolt
Dia
meters
(See Note 7)
Varmint Screen
ON CONCRETE FOUNDATION
20"
max. (Steel) (S
ee
Note 9)
17
" max. (Alu
m.)
Dia
meters
5-6 Bolt
Dia
meters
5-6 Bolt
STEEL ANCHOR BASES
(Varmint Screen Required, See Note 7)
1 - 2 Bolt
Dia
meters
Pole
Base
Plain WashersPlain Washers
Pole
Base
1 - 2 Bolt
Dia
meters
ON CONCRETE FOUNDATION
(Typ.)
8" x 13"
ANCHOR BOLTS (Note 1) (Note 6)
Note 10Note 10
(Note 1)
ANCHOR BOLTS (Note 1) (Note 6)
ON MEDIAN BARRIER(Note 1)
ALUMINUM ANCHOR BASES
(Note 10)
tolerance: +/- 1/2 degree.
if approved by the pole manufacturer. Plumbing
10. Use shims of aluminum for plumbing, or other material
9. Per NCHRP-350.
supports. Steel transformer bases do not.
8. Aluminum cast transformer bases qualify as breakaway
or galvanized, with openings no larger than …".
wire mesh or expanded metal sheet, stainless steel
stainless steel wire ties. Screen shall be welded
minimum 2" overlap. Tie overlapping screen with
7. Attach varmint screen with stainless steel band and
HL-20.13. L-bends shall not be used.
6. Anchor bolts shall be headed or nutted per SCD
indicated in the structure plans.
the anchor bolt shape and length will be modified as
5. For poles mounted on pilasters on bridge parapets,
where overhead wiring is required.
4. Cast aluminum transformer bases shall not be used
excess of manufacturer's rated limits for base.
3. Breakaway bases shall not be used under pole in
2. For pole grounding details see SCD HL-60.11.
HL-20.13.
indicated on Standard Construction Drawing (SCD)
Anchor Bolt dimensions will be modified as
1. For median-mounted poles, Pole Base Plate and
:NOTES
EN
GIN
EE
RIN
G
RO
AD
WA
Y
OF
FIC
E
OF
ST
AT
E
OF
OHIO
DEP
AR
TM
EN
T
OF T
RA
NSP
OR
TA
TIO
N
DA
TE
1 1
PO
LE
BA
SE
DE
TAIL
S
07-15-2016
ST
AN
DA
RD R
OA
DW
AY C
ON
ST
RU
CTIO
N
DR
AWIN
G
EN
GIN
EE
R
ST
DS.
AD
MINIS
TR
AT
OR
Due
mmel
SC
D
NU
MB
ER
HL-10.1
3
THIS
DR
AWIN
G R
EP
LA
CES
HL-10.13
DA
TE
D 01-
15-2016.
4"
1 - 2 Bolt
Dia
meters
Anchor Bolt
Pole
Bolt Circle
TYPE
AT-A
AT-C
13"
15" 15"
CONNECTOR BOLTS
BOLT CIRCLE BOLTS
13" 1"
1 ‚"
15"
17"
15"
17"
BOLTS
1" x 40"
1 ‚" x 49"
TYPE
ST-A
ST-C
ST-B
13"
15"
15"
17"
17"
22"
BOLTS
1"
1 ‚"
1 •"
16"
18"
25"
1" x 40"
1 ‚" x 49"
1 •" x 60"
BOLT CIRCLEBOLT CIRCLE BOLTS
CONNECTOR BOLTS
BOLT CIRCLE
Plate
Pole Base
Foundation
Concrete
by Manufacturer
Special Flat Washer
Hole for Grounding
Š" - •" Tapped
by Manufacturer
Special Flat Washer
BOTTOM OF BASE
13"
15"
17"
S
W
W
S W S W
Base
ON TRANSFORMER BASE(See Note 8)
ALUMINUM TRANSFORMER BASES (See Note 8) STEEL TRANSFORMER BASES (See Note 8)
ON MEDIAN BARRIER
Plain WashersPlain WashersPole
Base
1 - 2 Bolt
Dia
meters
(See Note 7)
Varmint Screen
ON CONCRETE FOUNDATION
20"
max. (Steel) (S
ee
Note 9)
17
" max. (Alu
m.)
Dia
meters
5-6 Bolt
Dia
meters
5-6 Bolt
STEEL ANCHOR BASES
(Varmint Screen Required, See Note 7)
1 - 2 Bolt
Dia
meters
Pole
Base
Plain WashersPlain Washers
Pole
Base
1 - 2 Bolt
Dia
meters
ON CONCRETE FOUNDATION
(Typ.)
8" x 13"
ANCHOR BOLTS (Note 1) (Note 6)
Note 10Note 10
(Note 1)
ANCHOR BOLTS (Note 1) (Note 6)
ON MEDIAN BARRIER(Note 1)
ALUMINUM ANCHOR BASES
(Note 10)
tolerance: +/- 1/2 degree.
if approved by the pole manufacturer. Plumbing
10. Use shims of aluminum for plumbing, or other material
9. Per NCHRP-350.
supports. Steel transformer bases do not.
8. Aluminum cast transformer bases qualify as breakaway
or galvanized, with openings no larger than …".
wire mesh or expanded metal sheet, stainless steel
stainless steel wire ties. Screen shall be welded
minimum 2" overlap. Tie overlapping screen with
7. Attach varmint screen with stainless steel band and
shall not be used.
6. Anchor bolts shall be headed or nutted. L-bends
indicated in the structure plans.
the anchor bolt shape and length will be modified as
5. For poles mounted on pilasters on bridge parapets,
where overhead wiring is required.
4. Cast aluminum transformer bases shall not be used
excess of manufacturer's rated limits for base.
3. Breakaway bases shall not be used under pole in
2. For pole grounding details see SCD HL-60.11.
HL-20.13.
indicated on Standard Construction Drawing (SCD)
Anchor Bolt dimensions will be modified as
1. For median-mounted poles, Pole Base Plate and
:NOTES
EN
GIN
EE
RIN
G
RO
AD
WA
Y
OF
FIC
E
OF
ST
AT
E
OF
OHIO
DEP
AR
TM
EN
T
OF T
RA
NSP
OR
TA
TIO
N
DA
TE
1 1
PO
LE
BA
SE
DE
TAIL
S
01-
15-2016
ST
AN
DA
RD R
OA
DW
AY C
ON
ST
RU
CTIO
N
DR
AWIN
G
EN
GIN
EE
R
ST
DS.
AD
MINIS
TR
AT
OR
Due
mmel
SC
D
NU
MB
ER
HL-10.1
3
THIS
DR
AWIN
G R
EP
LA
CES
HL-10.13
DA
TE
D 07-17-2015.
4"
1 - 2 Bolt
Dia
meters
Anchor Bolt
Pole
min. Anchor Bolt
As Required 1" x 40"
Bolt Circle
TYPE
AT-A
AT-C
13"
15" 15"
CONNECTOR BOLTS
BOLT CIRCLE BOLTS
13" 1"
1 �"
15"
17"
15"
17"
ANCHOR BOLTS
BOLTS
1" x 40"
1 �" x 48"
TYPE
ST-A
ST-C
ST-B
13"
15"
15"
17"
17"
22"
BOLTS
1"
1 �"
1 �"
16"
18"
25"
1" x 40"
1 �" x 48"
1 �" x 60"
BOLT CIRCLEBOLT CIRCLE BOLTS
CONNECTOR BOLTS
BOLT CIRCLE
ANCHOR BOLTS
Max. Bolt Circle = 15"
at Butt Plus 2.5 Bolt Diameters
Min. Bolt Circle = Shaft O. D.
Plate
Pole Base
Foundation
Concrete
by Manufacturer
Special Flat Washer
Hole for Grounding
�" - �" Tapped
by Manufacturer
Special Flat Washer
BOTTOM OF BASE
13"
15"
17"
S
W
W
S W S W
Base
ON TRANSFORMER BASE(See Note 8)
ALUMINUM TRANSFORMER BASES (See Note 8) STEEL TRANSFORMER BASES (See Note 8)
ON MEDIAN BARRIER
Plain Washers
min. Anchor Bolt
As Required 1" x 40"
Plain WashersPole
Base
1 - 2 Bolt
Dia
meters
(See Note 7)
Varmint Screen
ON CONCRETE FOUNDATION
20"
max. (Steel) (S
ee
Note 9)
17
" max. (Alu
m.)
Dia
meters
5-6 Bolt
Dia
meters
5-6 Bolt
STEEL ANCHOR BASES
(Varmint Screen Required, See Note 7)
1 - 2 Bolt
Dia
meters
Pole
min. Anchor Bolt
As Required 1" x 40"
Max. Bolt Circle = 15"
at Butt Plus 2.5 Bolt Diameters
Min. Bolt Circle = Shaft O. D.
Base
ON MEDIAN BARRIER
Plain Washers
min. Anchor Bolt
As Required 1" x 40"
Plain Washers
Pole
Base
1 - 2 Bolt
Dia
meters
ON CONCRETE FOUNDATION
ALUMINUM ANCHOR BASES
9. Per NCHRP-350.
supports. Steel transformer bases do not.
8. Aluminum cast transformer bases qualify as breakaway
or galvanized, with openings no larger than �".
wire mesh or expanded metal sheet, stainless steel
stainless steel wire ties. Screen shall be welded
minimum 2" overlap. Tie overlapping screen with
7. Attach varmint screen with stainless steel band and
shall not be used.
6. Anchor bolts shall be headed or nutted. L-bends
indicated in the structure plans.
the anchor bolt shape and length will be modified as
5. For poles mounted on pilasters on bridge parapets,
where overhead wiring is required.
4. Cast aluminum transformer bases shall not be used
excess of manufacturer’s rated limits for base.
3. Breakaway bases shall not be used under pole in
2. For pole grounding details see SCD HL-60.11.
HL-20.13.
indicated on Standard Construction Drawing (SCD)
Anchor Bolt length and shape will be modified as
1. For median-mounted poles, Pole Base Plate and
:NOTES
(Typ.)
8" x 13"
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HL-10.13
DA
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16-2015.
4"
1 - 2 Bolt
Dia
meters
Anchor Bolt
Pole
min. Anchor Bolt
As Required 1" x 40"
Bolt Circle
TYPE
AT-A
AT-C
13"
15" 15"
CONNECTOR BOLTS
BOLT CIRCLE BOLTS
13" 1"
1 �"
15"
17"
15"
17"
ANCHOR BOLTS
BOLTS
1" x 40"
1 �" x 48"
TYPE
ST-A
ST-C
ST-B
13"
15"
15"
17"
17"
22"
BOLTS
1"
1 �"
1 �"
16"
18"
25"
1" x 40"
1 �" x 48"
1 �" x 60"
BOLT CIRCLEBOLT CIRCLE BOLTS
CONNECTOR BOLTS
BOLT CIRCLE
ANCHOR BOLTS
Max. Bolt Circle = 15"
at Butt Plus 2.5 Bolt Diameters
Min. Bolt Circle = Shaft O. D.
Plate
Pole Base
8" x 13"
Min. Door
Foundation
Concrete
by Manufacturer
Special Flat Washer
Hole for Grounding
�" - �" Tapped
by Manufacturer
Special Flat Washer
BOTTOM OF BASE
13"
15"
17"
S
W
W
S W S W
Base
ON TRANSFORMER BASE(See Note 8)
ALUMINUM TRANSFORMER BASES (See Note 8) STEEL TRANSFORMER BASES (See Note 8)
ON MEDIAN BARRIER
Plain Washers
min. Anchor Bolt
As Required 1" x 40"
Plain WashersPole
Base
1 - 2 Bolt
Dia
meters
(See Note 7)
Varmint Screen
ON CONCRETE FOUNDATION
20"
max. (Steel) (S
ee
Note 9)
17
" max. (Alu
m.)
9. Per NCHRP-350.
supports. Steel transformer bases do not.
8. Aluminum cast transformer bases qualify as breakaway
or galvanized, with openings no larger than �".
wire mesh or expanded metal sheet, stainless steel
stainless steel wire ties. Screen shall be welded
minimum 2" overlap. Tie overlapping screen with
7. Attach varmint screen with stainless steel band and
and 60" bolts include a 6" bend.
6. 40" bolts include 4" bend, 48" bolts include a 5" bend,
indicated in the structure plans.
the anchor bolt shape and length will be modified as
5. For poles mounted on pilasters on bridge parapets,
where overhead wiring is required.
4. Cast aluminum transformer bases shall not be used
excess of manufacturer’s rated limits for base.
3. Frangible bases shall not be used under pole in
2. For pole grounding details see SCD HL-60.11.
HL-20.13.
indicated on Standard Construction Drawing (SCD)
Anchor Bolt length and shape will be modified as
1. For median-mounted poles, Pole Base Plate and
:NOTES
Dia
meters
5-6 Bolt
Dia
meters
5-6 Bolt
STEEL ANCHOR BASES
(Varmint Screen Required, See Note 7)
1 - 2 Bolt
Dia
meters
Pole
min. Anchor Bolt
As Required 1" x 40"
Max. Bolt Circle = 15"
at Butt Plus 2.5 Bolt Diameters
Min. Bolt Circle = Shaft O. D.
Base
ON MEDIAN BARRIER
Plain Washers
min. Anchor Bolt
As Required 1" x 40"
Plain Washers
Pole
Base
1 - 2 Bolt
Dia
meters
ON CONCRETE FOUNDATION
ALUMINUM ANCHOR BASES