exhibit 11 - south dakota public utilities commission13 12 11 10 9 8 7 6 5 4 3 2 cap station (south)...
TRANSCRIPT
EXHIBIT 11
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Grant CountyCodington County
118N 50W118N 51W
118N 51W119N 51W
119N 50W119N 51W
160 ST
465 AVE
464 A
VE
161 ST
159 ST
466AVE
CROWNEDRIDGE 1NORTH
232 231
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221 219 218 217 216 215 214 213 212
211210 209 208 207
Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: South Shore (1973),Stockholm (1973)Township/Range: T. 118N, R. 51W & T. 119N, R. 51W & T. 118N, R. 50WCodington and Grant Counties, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
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118N 50W119N 50W
467 AVE
468 AVE
161 ST
160 ST
159 ST
469 AVE
207 206 205 204
203
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201
200199
198
197
196
195194
193192 191
190 189 188187
186185
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Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: Stockholm (1973) Township/Range: T. 118N, R. 50W & T. 119N, R. 50WGrant County, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
- --+- D -
- [_-=-_J - CJ -CJ
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119N 49W119N 50W
E 1 AVE
472 AVE
SE 1ST
N MAIN ST
W 1 AVE
E JOHNSON AVE
E FARM LN
471 AVE
470 AVE
158 ST
CEMETERY RD
159 ST
JOHNSON AVE
SD HWY 20
186
185184
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179178
177176 175 174A
174173 172
171
170169
168
167166 165 164 163 162
161Stockholm
Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: Stockholm (1973) Township/Range: T. 119N, R. 50W & T. 119N, R. 49WGrant County, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
- --+- D -
- [_-=-_J - CJ -CJ
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¬«20
119N 49W119N 50W
473AV
E
156 ST
474 AVE
472 AVE
158 ST
155 ST
475 AVE
SD HWY 20
166 165 164 163 162161
159
158
157
156
155
154
153
152
151
150
149 148 147 146 145 144 143 142 141 140 139 138 137 135 134
Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: Stockholm (1973),LaBolt (1973)Township/Range: T. 119N, R. 50W & T. 119N, R. 49WGrant County, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
- --+- D -
- [_-=-_J - CJ --CJ
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¬«20
119N 49W120N 49W
119N 49W119N 48W
120N 48W120N 49W
SD HWY 20
156 ST
477 AVE
155 ST
154 ST
CENTER RD
476 AVE
475 AVE
SD HWY 15
134 133 132131
130
129
128 127A 127 126 125 124 123 122 121 120 119 118
117
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108
107106 105 104 103 102
101
Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: LaBolt (1973),Milbank West (1973)Township/Range: T. 119N, R. 49W & T. 120N, R. 49WGrant County, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
- --+- D -
- [_-=-_J - CJ --CJ
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119N 49W120N 49W
119N 49W119N 48W
120N 48W120N 49W
120N 48W119N 48W
FENNE R LOOP
479 AVE
CENTER RD
153 ST
152 ST
154 ST
477 AVE
SD HWY 15
110
109
108
107 106 105 104 103 102 101
100
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98
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93 92
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89 88 87 86 85 84 83
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Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: Milbank West (1973),Milbank East (1973)Township/Range: T. 119N, R. 49W & T. 120N, R. 49WGrant County, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
- --+- D -
- [_-=-_J - CJ -CJ
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481 A
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N14THST
US HWY 12
MILBANK AVE
EASTMAN ST
ASPENDR
S 9TH ST
A SH T ONAV E
E 12TH AVE
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W 10TH AVE
FLYNN DR
11TH AVE
7TH ST
BELL AVELLOYD ST
UNKNOWN
7TH AVE
149 ST
VIOL AS T
ADAMSD R
DAKOTA AVE
MORNINGSIDE DR
152 ST
150 ST
479 A
VE
480 AVE
151 ST
82
81
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77 76 75 74 73 72 71 70 69 68 67 66 6564
63
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Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: Milbank East (1973) Township/Range: T. 120N, R. 48W Grant County, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
- --+- D -
- [_-=-_J - CJ -CJ
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120N 47W121N 47W
120N
47W
120N
48W
121N 47W120N 48W
150 ST
148 ST
483 AVE
SCHUMACHER RD
US HWY 12
149 ST
482 A
VE
484 AVE
53 52 51 50
4948
4746
45 44
43
41
40
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30 29
28
27
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Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: Milbank East (1973) Township/Range: T. 120N, R. 48W & T. 121N, R. 47WGrant County, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
- --+- D -
- [_-=-_J - CJ --CJ
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121N 47W121N 46W
146 ST
145 ST
485 AVE
147 ST
484 AVE
483 AVE
US HWY 12
26
25
24
23
22
21
2019
1817 16 15 14 13 12 11
10
9
8
76
5
4
3
2
CAP STATION(SOUTH)
Projection: NAD 1983 StatePlane South Dakota North FIPS 4001 Feet
Base Map: 2016 Aerial ImagerySource: USDA/FSA - Aerial Photography Field OfficeQuadrangle: Milbank East (1973),Big Stone Lake SE (1971)Township/Range: T. 121N, R. 47W Grant County, North Dakota
0 10.5Miles
0 10.5Kilometers
µ
116 North 4th StreetSuite 200
Bismarck, ND 58501Phone: 701.258.6622
Fax: 701.258.5957www.swca.com
!P City") Structure Location"Z Airport
ProposedTransmission LineRailroad
! !Electrical LineNatural Gas Line
! !Unknown Utility LineU.S. HighwayExisting RoadLand Parcel Containing12-acre Reactor Station
Project Study Area (1 mile)Existing POISubstationProposed SubstationDesktop Assessment: Potential Dakota Skipper HabitatSectionBoundaryTownship/RangeBoundaryCounty Boundary
Crowned Ridge Transmission LineService Layer Credits: Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community
CJ SWCA D ENVIRONMENTAL CONSULTANTS
- --+- D -
- [_-=-_J - CJ -CJ
The current Crowned Ridge transmission line reflects changes from our original application in relation to
three aspects of infrastructure designed to accommodate landowner requests and minimize conflicting
environmental constraints. In general, these changes involve taller and more self-supporting structures.
The changes include 1) widening the ROW, 2) increasing pole and structure heights, and 3) increasing
the average span length in specific subsections. Each of these areas are described in more detail below.
Widening the ROW
The typical ROW for the Applicant is 150 feet wide that includes all physical infrastructure and any
temporary work space needed to construct and operate or maintain the transmission line. In addition,
the ROW for land secured also need to include land that is not expected to be physically disturbed or
impacted, but that could be affected by conductor blowout during operations. Blowout is a calculated
value that estimates that horizontal distance needed absorb conductor movement under different wind
speeds that varies by structure type. In general, taller structures require a wider ROW to accommodate
the blowout. In this case, the Applicant is proposing specific segments of the line with wider ROWs to
accommodate taller structures being used to accommodate landowner preferences and minimize
conflicting environmental constraints.
The Applicant requests a ROW widening related to one highly constrained area that would increase the
ROW from 150 feet wide at structure 199 to 200 feet wide (an additional 50 feet) at structure 200, then
increasing to 250 feet wide from structure 200 to 203 before returning back to 150 feet wide after
structure 203. The proposed widening to accommodate conductor blowout occurs over an
approximately 2-mile segment of the transmission line, results in a 0.53-mile lateral displacement from
the original centerline, and remains within the 1-mile Study Corridor originally described.
Increasing Pole and Structure Heights
The original application filed by Crowned Ridge referenced a range of maximum of pole and structure
heights varying from 120 feet for a single circuit to 140 feet for a double circuit. The Applicant is now
proposing an increase of maximum pole height for a single circuit to 165 feet. Taller poles and structures
are necessary to accommodate landowner preferences and to minimize conflicting environmental
constraints. Twenty eight of the 232 poles or structures are now proposed to exceed the height of 120
feet and range up to a maximum height of 165 feet. Of the 28 poles over 120 feet, 19 structures are
increasing 10 feet or less (ranging from 120 to 130 feet), 6 structures are increasing between 10 feet to
20 feet (ranging from 131 to 140 feet), and 3 structures are increasing between 20 and 35 feet (ranging
from 141 to 165 feet).
Taller structure heights are necessary to address 1) landowner requests (8 of 28 structures), 2)
avoidance of environmental constraints such as wetlands and cultural/tribal resources (11 of 28
structures), negotiated placement balancing a combination of landowner preferences and
environmental constraints (6 of 28 structures), and setback maintenance for railroad crossings and
utility clearances (3 of 28 structures).
Table 1. Revised structure types and heights proposed for all structures over 120 feet tall.
Structure Number Structure Type Height (ft)
204 SS MEDIUM ANGLE 130
202 SS H-FRAME
TANGENT 165
201 SS H-FRAME
TANGENT 165
199 SS MEDIUM ANGLE 130
198 HEAVY TANGENT 125
197 HEAVY TANGENT 125
180 SS LIGHT RA 140
175 LIGHT TANGENT 125
173 LIGHT TANGENT 125
169 HEAVY TANGENT 130
161 SS MEDIUM ANGLE 140
159 SS MEDIUM ANGLE 140
137 HEAVY TANGENT 125
135 SS LIGHT RA 125
91 HEAVY TANGENT 130
90 HEAVY TANGENT 125
87 LIGHT TANGENT 130
86 HEAVY TANGENT 125
57 SS MEDIUM ANGLE 125
56 SS DEADEND 130
50 SS LIGHT RA 125
41 SS MEDIUM ANGLE 140
38 HEAVY TANGENT 125
37 HEAVY TANGENT 130
19 LIGHT TANGENT 125
8 HEAVY TANGENT 135
5 HEAVY TANGENT 150
4 HEAVY TANGENT 135
Increasing Span Length
The original application filed by Crowned Ridge referenced maximum spans of 1,000 feet. Although the
average span length of 792 feet is still below the maximum of 1,000 feet previously referenced, the the
Applicant is proposing to increase the maximum span from 1,000 feet to 2,005 feet at 12 segments of
the transmission line to accommodate landowner preferences and minimizing conflicting environmental
constraints. Of the 12 locations with longer spans proposed, four of these are necessary as a result of
landowner preference and eight are the result of a negotiation between landowner preferences and
minimizing conflicting environmental constraints.
Table 2. Structure number and span length associated with all spans proposed for over 1,000 feet in
length.
Structure Number Span Length (ft)
202 2005
170 1079
138 1051
137 1031
130 1022
115 1012
114 1012
105 1087
88 1012
6 1018
5 1087
3 1038
Intersection of Proposed Infrastructure Changes
The three sources of change in design proposed by Crowned Ridge are described above, but each of the
design factors alone may also interact to generate multiple factors influencing the height of structures
or average span length. For example, the Applicant is proposing a ROW expansion between structures
199 to 203 due to conductor blowout. However, six of the structure types over 120 feet tall shown in
Table 1 also require an increase in height to balance landowner preferences and environmental
constraints. As a result of a combination of these factors, structure 202 shows the longest increase in
proposed span of 2,005 feet (Table 2) that also in turn influences structure height and ROW width. In
summary, Crowned Ridge believes the changes in design proposed highlight positive developments to
accommodate landowner preferences and further minimize environmental constraints.
Substation Location
The substation location in the original application was determined to have poor soil conditions after a
geotechnical investigation took place. Geotechnical information revealed that soil conditions were
significantly better to the south. After cultural and tribal investigations took place, the location of the
substation was move approximately 850 feet south of the original location.