Structure types and workspace requirements
August 2010
Heartland 12S Substation and 240 kV Transmission Line (1054L/1061L) Project
At all structure locations, AltaLink will be seeking workspace area in addition to the required transmission
line right-of-way. Optional temporary workspace and additional required right-of-way is needed for the safe
construction of the transmission structures including the structure assembly, installation and stringing.
This booklet includes diagrams of the workspace area required for each type of structure that will make up the
proposed transmission line. There are five different structure types. To determine what structure type is proposed to be
located on or near your property:
Tangent Structure
Light Angle Structure
Heavy Angle Structure
Light Deadend Structure
Heavy Deadend Structure
1. Refer to the strip mosaic map, included in this package, which has a close-up view
of your property.
2. The photo map will have structure locations indicated with symbols on the left,
which are colour coded by structure type.
3. Find the colour of the structure type symbol on the pages included in this booklet.
This will be the structure proposed for that location.
Optional temporary workspace:
This is an area beyond the transmission line right-of-way next to the transmission structures to help us build the line
more efficiently. We may need optional temporary workspace for the Tangent and Angle structures.
Additional required right-of-way:
This is additional area beyond the transmission line right-of-way that we use to build the structures and operate the
line. We will be seeking additional required right-of-way for the Heavy Angle, Light Deadend and Heavy Deadend and
structures.
The only land area taken out of the existing land use base is the area of each individual structure footprint. Landowners
will receive compensation for both optional temporary workspace and the additional required right-of-way. Discussions
regarding acquiring these spaces will be negotiated on an individual basis with landowners.
Workspace diagrams
In addition to the required right-of-way or optional temporary workspace, the diagrams included in this booklet also
identify the:
• Crane footprint: the work area required for a crane to lift the structure into place
• Foundation area: the approximate area of the structure foundation
• Right-of-way: the strip of land required for the construction and operation of the transmission line
1-877-723-6851 (toll-free) [email protected] www.albertaelectrictiyfuture.ca
TANGENT
(0^-1^)
24m-37m
44m-57m
19.5m
8m-12m
TYPICAL TANGENT
STRUCTURE
NOTES
- TANGENT STRUCTURE CENTRED WITHIN 55m RIGHT OF WAY
N.T.S.
DRAWN: V. SANTOS
DATE: 2010-09-01
- OPTIONAL TEMPORARY WORKSPACE MAY BE REQUIRED
PROJECT: Heartland 240kV Line
o
o
TANGENT STRUCTURE - (0 -1 )
ANGLE
(6^-15^)
LIGHT ANGLE
(0^-6^)
20.6m
25m-38m
26m-39m
45m-57m
46m-68m
22.5m
8m-12m
NOTES
- ANGLE STRUCTURE CENTRED WITHIN 55m RIGHT OF WAY
8m-12m
N.T.S.
DRAWN: V. SANTOS
DATE: 2010-09-01
- OPTIONAL TEMPORARY WORKSPACE MAY BE REQUIRED
PROJECT: Heartland 240kV Line
o
o
o
o
ANGLE STRUCTURE (0 - 1 )(6 - 15 )
HEAVY ANGLE/DEADEND
ANGLE/DEADEND
(45^-90^ DEADEND)
(0^-45^ DEADEND)
21.1m
21m-34m
21m-34m
43m-55m
43m-55m
27.6m
9m-14m
NOTES
10m-14m
N.T.S.
- HEAVY ANGLE/DEADEND STRUCTURE CENTRED WITHIN
55m RIGHT OF WAY
DRAWN: V. SANTOS
- OPTIONAL TEMPORARY WORKSPACE MAY BE REQUIRED
PROJECT: Heartland 240kV Line
DATE: 2010-09-01
HEAVY ANGLE DEADEND STUCTURE
o
o
o
o
(0 - 45 )(45 - 90 )
R/W=55m
15m
C
L
FOUNDATION
AREA
OPTIONAL
TEMPORARY
WORKSPACE
70m
5m
CRANE
FOOTPRINT
15m
NOTES
N.T.S.
- OPTIONAL TEMPORARY WORKSPACE
DRAWN: V. SANTOS
DATE: 2010-08-31
R/W
C
L
- RIGHT-OF-WAY
PROJECT: Heartland 240kV Line
- TRANSMISSION LINE CENTRE LINE
OPTIONAL TEMPORARY WORKSPACE FOR
o
o
TANGENT STRUCTURE - (0 -1 )
15m
C
L
1^
-6^
6^
-1
OPTIONAL
TEMPORARY
WORKSPACE
FOUNDATION
AREA
(75m 6^-15^) (70m 1^-6^)
5^
CRANE
FOOTPRINT
C
L
15m
55m
R/W=
NOTES
N.T.S.
- OPTIONAL TEMPORARY WORKSPACE
DRAWN: V. SANTOS
DATE: 2010-08-31
R/W
C
L
- RIGHT-OF-WAY
PROJECT: Heartland 240kV Line
- TRANSMISSION LINE CENTRE LINE
ADDITIONAL REQUIRED R/W FOR
240kV ANGLE STRUCTURE
o
o
o
o
(0 -6 ) (6 -15 )
55
m
R/
W
=5
5m
C
L
ADDITIONAL
REQUIRED R/W
0m
18
m
30
-2
15m
FOUNDATION
AREA
CRANE
60m
ADDITIONAL
REQUIRED R/W
45%%d0’0"
15m
18
0m
-2
30
m
FOOTPRINT
ADDITIONAL
REQUIRED R/W
C
L
5m
W
R/
=5
55
m
NOTES
N.T.S.
- ADDITIONAL REQUIRED RIGHT-OF-WAY
DRAWN: V. SANTOS
DATE: 2010-08-31
R/W
C
L
- RIGHT-OF-WAY
PROJECT: Heartland 240kV Line
- TRANSMISSION LINE CENTRE LINE
ADDITIONAL REQUIRED R/W FOR
o
o
LIGHT DEADEND STUCTURE (0 - 45 )
65m
180m-230m
ADDITIONAL
REQUIRED R/W
60m
%
%
d0
’0
60m
"
65m
C
L
C
L
ADDITIONAL
REQUIRED R/W
CRANE
FOOTPRINT
R/W=55m
90
30m
15m
15m
FOUNDATION
AREA
180m-230m
10m
30m
30m
ADDITIONAL
REQUIRED R/W
10m
C
L
R/W=55m
NOTES
N.T.S.
- ADDITIONAL REQUIRED RIGHT-OF-WAY
DRAWN: V. SANTOS
DATE: 2010-08-31
R/W
C
L
- RIGHT-OF-WAY
PROJECT: Heartland 240kV Line
- TRANSMISSION LINE CENTRE LINE
ADDITIONAL REQUIRED R/W FOR
o
o
HEAVY DEADEND STUCTURE (45 - 90 )