B08_-_Attachment_4_-_Location_Maps-Lab_Testing_Report-Photos.pdf

PDF 25 MB Posted Aug 21, 2026

Attached to: ALPO STABILIZATION OF STAPLE BEND TUNNEL
Solicitation number: 140P4226R0026
Issued by: Not on record

About this file

Written by GovTribe AI · Aug 21, 2026

This file is an attachment containing location maps, a laboratory testing report, and photographs related to the Staple Bend Tunnel stabilization project at Allegheny Portage Railroad National Historical Site (ALPO). The document serves as a reference appendix providing visual and technical documentation to support contractors' understanding of the project site and existing conditions rather than specifying required products or services. The materials include geographical location maps showing the tunnel's position within the site, photographic documentation of the tunnel's current structural state, and laboratory analysis results pertaining to materials and conditions affecting stabilization requirements. These supporting documents are intended to inform bidders during the site evaluation process and help contractors assess project scope and technical challenges associated with the tunnel stabilization work.

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APPENDIX A

Tetra Tech Location Map (Figure A-1)

Tetra Tech Geologic Map (Figure A-2)

Tetra Tech Site Plan (Figure A-3)

North Portal

South Portal

Staple Bend Tunnel

C H

D R

W N

ESN

www.tetratech.com

1/3/2025

A B C D E F

A-1 NPS Staple Bend Tunnel Johnstown, PA Location Map

Brady G rove

Sarah G arland

117-001039-24002

Sources: Google Earth 8/15/2015 Google Earth 12/31/2020

825 West Custer Ave Helena, Montana 59602

Bar M easures 1 inch, otherw ise draw ing not to scale

North Portal

South Portal *Staple Bend Tunnel

C H

D R

W N

ESN

www.tetratech.com

1/3/2025

A B C D E F

A-3 NPS Staple Bend Tunnel Johnstown, PA Geological Map

Brady G rove

Sarah G arland

117-001039-24002

*Tunnel width is not to scale

Sources: Google Earth 3/28/2024 Pennsylvania Geological Survey 1998

825 West Custer Ave Helena, Montana 59602

E W

Bar M easures 1 inch, otherw

Working Area

Storage/Parking Areas

South Portal

North Portal

C H

D R

W N

ESN

www.tetratech.com

1/3/2025

A B C D E F

A-3 NPS Staple Bend Tunnel Johnstown, PA

Site Plan

Brady G rove

Sarah G arland

117-001039-24002

Sources: 1988 NPS Staple Bend Unit Top Survey

825 West Custer Ave Helena, Montana 59602

Bar M easures 1 inch, otherw

APPENDIX C

Laboratory Testing (Table C-1 and Figure C-2 through Figure C-6)

Tilt Test Results (Table C-7)

Field Measurements (Table C-8 through Table C-11, Figure C-12 and Figure C-13)

Project:

Client:

Location:

Date:

CLIENT: Great West PROJECT: JOB NO.:

LOCATION: Johnstown, PA.

S1 S2 S3 S4 S6

1/30/2023 1/30/2023 1/30/2023 1/30/2023 1/30/2023 2/13/2023 2/13/2023 2/13/2023 2/13/2023 2/13/2023

SG & SB SG & SB SG & SB SG & SB SG & SB

Sandstone Sandstone Shale Shale Shale

1 1 1 2 1

1.750 1.750 1.750 1.750

4.770 3.890 4.580 4.410

491.18 402.36 470.58 424.21

1.0829 0.8871 1.0375 0.9352

2.404 2.404 2.404 2.404

163.18 163.91 162.82 152.43

2.61 2.62 2.61 2.44 8700 9400 13400 2190

223635 241625 344425 56328 93024 100507 143268 23430

641.38 692.97 987.80 161.55 brittle fracture brittle fracture

1.750 4.230

434.94 0.9589 2.404

162.94 2.61

10500 269895 112266 774.05 horizontal/diagonal fracture shear fracture brittle fracture

ALPO Staple Bend Tunnel

NPS

Johnstown, PA 2/14/2025

Unconfined Compressive Strength

Compressive Strength (MPa):

Failure Type:

Allegheny Portage Railroad National Historic Site (ALPO)

117-001039-24002

Area of Core (in2) Wet Density (lbs/ft3):

Wet Density (g/cm3):

Peak Load (psi guage) Peak Load (lbs):

Compressive Strength (psi):

Rock Type Weathering Grade

Diameter (in):

Height (in):

Mass of Wet Rock (g):

Mass of Wet Rock (lbs):

Technician

ASTM D7012 Method C

Sample No.

Date Sampled

Date Tested

TABLE C-1

Client: ALPO NPS Date Tested:

Project: Staple Bend Tunnel Tested By:

Rock Core ID: Sandstone 01

Sample ID: SS UCS 01

Sample Location: Grab

UCS 9,390 psi

64.74 MPa

Young's Modulus 3,354,654 psi

23,129.53 MPa

Poisson's Ratio N/A psi

Unit Weight 163.18 lbs/ft

Density 2.61 g/cm3

November 14, 2024 Steve Berry

Testing notes Pre Test Photo Post Test Photo

Sudden quiet, brittle failure. Radial strain was affected by the discontinuity producing an unrealistic Poisson's Ratio.

Lithology Code

Rock Strength/Engineering Parameters

10000

-0.0040 -0.0030 -0.0020 -0.0010 0.0000 0.0010 0.0020 0.0030 0.0040

A xi al S tr e ss p si

Axial and Lateral Strain (Unitless)

SS UCS01

Axial Stress vs. Axial Strain

Axial Stress vs. Lateral Strain

Young's Modulus (E) 3,354,654 psi

UCS 9,390 psi

Lab Testing provided by Montana Tech's Geomechanics Lab

Checked By:

QA/QC:

FIGURE C-2

Project: Staple Bend Tunnel Tested By: Steve Berry

Rock Core ID: Shale 01

Sample ID: UCS 01

Sample Location: Grab

UCS 10,500 psi

72.39 MPa

Young's Modulus 5,877,302 psi

40,522.57 MPa

Poisson's Ratio N/A

Unit Weight 162.94 lbs/ft

Density 2.61 g/cm3

November 14, 2024

Testing notes Pre Test Photo Post Test Photo

Sample failed along preexisting stained and altered discontinuity. Radial strain was affected by the discontinuity producing an unrealistic Poisson's Ratio.

Lithology Code

Rock Strength/Engineering Parameters

10000

12000

-0.004 -0.003 -0.002 0.002 0.003 0.004

A xi al S tr e ss p si

-0.001 0.001

Axial and Lateral Strain (Unitless)

Shale UCS 01

Axial Stress vs. Axial Strain

Axial Stress vs. Lateral Strain

UCS 10,500 psi

Lab Testing provided by Montana Tech's Geomechanics Lab

Young's Modulus (E) 5,877,302 psi

FIGURE C-3

Rock Core ID: Shale 02

Sample ID: UCS 02

Sample Location: Grab

UCS 13,400 psi

92.39 MPa

Young's Modulus 6,110,695 psi

42,131.76 MPa

Poisson's Ratio N/A

Unit Weight 162.82 lbs/ft

Density 2.61 g/cm3

November 14, 2024

Testing notes Pre Test Photo Post Test Photo

Sample failed along preexisting stained and altered discontinuity. Radial strain was affected by the discontinuity producing an unrealistic Poisson's Ratio.

Lithology Code

Rock Strength/Engineering Parameters

10000

12000

14000

16000

-0.004 -0.003 -0.002 0.002 0.003 0.004

A xi al S tr e ss p si

-0.001 0.001

Shale UCS 02

Axial Stress vs. Axial Strain

Axial Stress vs. Lateral Strain

UCS 13,400 psi

Young's Modulus (E)

6,110,695 psi

Lab Testing provided by Montana Tech's Geomechanics Lab

Axial and Lateral Strain (Unitless)

FIGURE C-4

Rock Core ID: Shale 03

Sample ID: UCS 03

Sample Location: Grab

UCS 2,080 psi

14.34 MPa

Young's Modulus 1,067,784 psi

7,362.11 MPa

Poisson's Ratio N/A

Unit Weight 152.43 lbs/ft

Density 2.44 g/cm3

November 14, 2024

Testing notes Pre Test Photo Post Test Photo

Sample failed along preexisting stained and altered discontinuity. Radial strain was affected by the discontinuity producing an unrealistic Poisson's Ratio.

Lithology Code

Rock Strength/Engineering Parameters

-0.006 -0.004 -0.002 0.000 0.002 0.004 0.006

A xi al S tr e ss p si

Shale UCS 03

Axial Stress vs. Axial Strain

Axial Stress vs. Lateral Strain

UCS 2,080 psi

Young's Modulus (E) 1,067,784 psi

Lab Testing provided by Montana Tech's Geomechanics Lab

FIGURE C-5

Rock Core ID: Sandstone 04

Sample ID: UCS 04

Sample Location: Grab

UCS 6,800 psi

46.88 MPa

Young's Modulus 7,961,421 psi

54,892.06 MPa

Poisson's Ratio N/A

Unit Weight 162.94 lbs/ft

Density 2.61 g/cm3

November 14, 2024

Testing notes Pre Test Photo Post Test Photo

Sample failed along preexisting stained and altered discontinuity. Radial strain was affected by the discontinuity producing an unrealistic Poisson's Ratio.

Lithology Code

Rock Strength/Engineering Parameters

10000

-0.003 -0.002 -0.001 0.001 0.002 0.003

A xi al S tr e ss p si

0.000

SS UCS 04

Axial Stress vs. Axial Strain

Axial Stress vs. Lateral Strain

UCS 6,800 psi

Young's Modulus (E) 7,961,421 psi

Lab Testing provided by Montana Tech's Geomechanics Lab

FIGURE C-6

Location:

Date:

Test Number Sandstone Shale

1 26 37

2 32 34

3 34 37

4 36 35

5 27 32

6 33 34

7 35 36

8 29 27

9 30 38

10 33 36

Average 32 35

Tilt Test Results Angle (°)

ALPO Staple Bend Tunnel

NPS

Johnstown, PA 2/17/2025

TABLE C-7

Location:

Date:

Dip Dip Direction Location Description Dip Dip Direction Location Description

71 21 1+50 Joint 86 145 3+35 Joint

70 315 1+50 Joint 14 210 3+35 Bedding

8 330 1+50 Bedding 88 205 3+40 Joint

12 10 1+60 Contact 13 225 3+40 Contact

78 340 1+70 Joint 88 132 3+50 Joint

81 356 1+80 Joint 79 120 3+50 Joint

10 265 1+80 Bedding 84 1 3+60 Joint

89 79 2+00 Joint 89 25 3+60 Joint

4 330 2+00 Bedding 84 35 3+70 Joint

62 260 2+20 Joint 4 90 3+70 Contact

8 260 2+20 Bedding 88 45 3+75 Joint

85 240 2+30 Joint 81 320 3+80 Joint

75 30 2+40 Joint 33 250 3+80 Joint

75 290 2+50 Joint 88 140 3+80 Joint

55 321 2+50 Joint 85 350 3+80 Joint

72 25 2+50 Joint 88 25 4+05 Joint

89 68 2+50 Joint 88 40 4+05 Joint

70 105 2+60 Joint 83 55 4+10 Joint

20 270 2+70 Contact 76 142 4+10 Joint

86 40 2+70 Joint 85 40 4+10 Joint

80 295 2+70 Joint 32 153 4+10 Joint

78 355 2+70 Joint 82 275 4+20 Joint

85 120 2+70 Joint 60 245 4+20 Joint

82 350 2+70 Joint 12 5 4+20 Contact

82 118 2+85 Joint 86 320 4+20 Joint

89 195 3+20 Joint 88 70 4+20 Joint

ALPO Staple Bend Tunnel

NPS

Johnstown, PA 2/17/2025

Field Measurements Field Measurements

TABLE C-8

Location:

Date:

Dip Dip Direction Location Description Dip Dip Direction Location Description

67 5 4+25 Joint 46 310 5+40 Joint

87 75 4+25 Joint 6 245 5+40 Contact

5 120 4+25 Bedding 86 310 5+55 Joint

86 300 4+25 Joint 85 30 5+70 Joint

85 340 4+40 Joint 85 350 5+70 Joint

87 60 4+40 Joint 87 196 6+00 Joint

52 280 4+60 Joint 85 320 6+00 Joint

85 19 4+70 Joint 84 191 6+00 Joint

89 10 4+70 Joint 85 35 6+20 Joint

86 315 4+70 Joint 38 4 6+25 Joint

85 295 4+70 Joint 74 190 6+20 Joint

11 30 4+70 Contact 76 305 6+20 Joint

85 90 4+80 Joint 68 142 6+20 Joint

84 250 4+80 Joint 76 265 6*30 Joint

85 15 4+80 Joint 74 134 6+40 Joint

84 100 4+80 Joint 80 199 6+40 Joint

9 350 4+80 Contact 86 41 6+60 Joint

83 265 4+85 Joint 51 289 6+60 Joint

85 185 4+85 Joint 86 8 6+60 Bedding

64 160 4+90 Joint 83 234 6+60 Joint

86 190 4+90 Joint 5 64 6+50 Bedding

62 124 4+95 Joint 85 357 6+65 Joint

79 122 4+95 Joint 88 162 6+65 Joint

66 133 5+00 Joint 88 52 6+80 Joint

84 175 5+00 Joint 76 181 6+80 Joint

79 110 5+10 Joint 4 313 6+80 Bedding

ALPO Staple Bend Tunnel

NPS

Johnstown, PA 2/17/2025

Field Measurements Field Measurements

TABLE C-9

Location:

Date:

Dip Dip Direction Location Description

89 239 6+80 Joint

88 270 6+80 Joint

73 312 6+80 Joint

75 215 6+80 Joint

87 221 6+80 Joint

78 174 6+90 Joint

14 25 6+90 Bedding

81 192 7+05 Joint

85 188 7+20 Joint

5 329 7+20 Bedding

89 60 7+20 Joint

82 59 7+20 Joint

88 87 7+20 Joint

84 188 7+20 Joint

9 360 7+20 Bedding

71 196 7+30 Joint

86 86 7+30 Joint

83 357 7+30 Joint

83 157 7+30 Joint

13 313 7+40 Bedding

ALPO Staple Bend Tunnel

NPS

Johnstown, PA 2/17/2025

Field Measurements

TABLE C-10

Project:Staple Bend Tunnel Client: NPS

Location: Johnstown, PA Date: 10/16/2024

Station - Average values for rock type

B - Systematic Bolting sfr - Fiber reinforced sprayed concrete E1000 - Energy absorbtion in fibre reinforced sprayed concrete D - Double layer Rebars 4Ø16 - Rebar diameter is 16 mm.

si30/6 - Single layer of 6 rebars, 30 cm thickness of sprayed concrete

Support Cat. 3 1 3 1

B+sfr Unsupported Spot Bolting B+sfr Unsupported Spot

Bolting

SRF 1 1 1 1

Q 2.063 4.950 2.063 4.950

Ja 3 2 3 2 Jw 0.66 0.66 0.66 0.66

Jn 12 9 12 9 Jr 1.5 1.5 1.5 1.5

Input Parameters Input Values Input Values Input Values Input Values

RQD 75 90 75 90

Bolt Length (m) 2.4

Siltstone Fractured Sandstone Worst Best Worst Best

NGI Q-System Rock Support

Span (m) 6.25

ESR 1.6

TABLE C-11

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7#+-�+849-:�,4�&�;#2��5"��5<'4�#2�:8,9:-�,4�& �5" ��=�� > ��> ��> ?�> !�> ��> @ A B C D E F G HIIJ��KLK�MNO�PIIJ��KLK�QNR�PIIJ��KLK�QNS�PIIJ��KLK�TNU�PIIJ��KLK�TNO�P

VW82'98�X#+-�(<'$,49�3,-:�5;2

VW82'98�X#+-�(<'$,49�3,-:#*-�5;2

"YZ[�\V55�/]V̂_̀a�Vb1�"YZ[�5]ccY"̀d�0$8<-,#4'++.<##2 �0-28&8+.<##2 e82.<##2 c##2 6',2 f##gh i j k l me82.9##g �0-28&8+.9##g �0$8<n9##g IIJ�ooo IIJ�oo IIJ�o

�� p��qrstu�vwx�yzr{rvx|�v}�x~��q�vx�vwx�rq��}�v��xyqs�x|xtvr Tunnel Span = 20 feet

= 6.25 m

Qsh = 0.008 - 0.125 Qss = 0.017 - 0.083

FIGURE C-12

SARAH.GARLAND

Line

SARAH.GARLAND

Line

SARAH.GARLAND

Line

SARAH.GARLAND

Line

SARAH.GARLAND

Line

-.//012�3425601758� 9:;<==>?@AB�>?�;=>@�C>D@E:F� G=>@�C>D@E:FH�IJ� GK;@ALM@EN�C>D@E:FH�OC?A�?AE:P>?NAB�;=?MKAB�N>:N?A@AH�QRS�NLH�JTIUV� WEC?A�?AE:P>?NAB�;=?MKAB�N>:N?A@A�M:B�C>D@E:FH�SRX�NLH�IUV�YZ[\\]TJ� WEC?A�?AE:P>?NAB�;=?MKAB�N>:N?A@A�M:B�C>D@E:FH�XR̂_�NLH�IUV�YZ̀\\]TJ� WEC?A�?AE:P>?NAB�;=?MKAB�N>:N?A@A�M:B�C>D@E:FH�̂_R̂Q�NL�T�?AE:P>?NAB�� ?EC;�>P�;=?MKAB�N>:N?A@A�M:B�C>D@E:FH�IUV�YZ̀\\]TaaI�b�TJ� WEC?A�?AE:P>?NAB�;=?MKAB�N>:N?A@A�ĉQ�NL�T�?AE:P>?NAB�?EC;�>P�;=?MKAB�� N>:N?A@A�M:B�C>D@E:FH�IUV�YZd\\\]TaaI�bbTJ� eM;@�N>:N?A@A�DE:E:FH�ffg�>?�IUV�YZd\\\]TaaI�bbbTJ� G=ANEMD�AhMD<M@E>:i>D@;�;=MNE:F�E;�LME:DK�CM;AB�>:�j_k�LLl�m�l:A?FK�MC;>?C@E>:�E:�OC?A�?AE:P>?NAB�;=?MKAB�N>:N?A@AlGn�m�loNMhM@E>:�G<==>?@�nM@E>p?AM;�qE@r�BM;rAB�DE:A;�rMhA�:>�AL=E?ENMD�BM@M �GEsktS�m�GE:FDA�DMKA?�>P�S�?ACM?;H� ��sk�NL�@rENu:A;;�>P�;=?MKAB�N>:N?A@A� v�m�v><CDA�DMKA?�>P�?ACM?;�j Ŝ�m�nACM?�BEMLA@A?�E;�̂S�LL�NtN�m�nGG�;=MNE:FH�NA:@?A�R�NA:@?A� �� ww-�x�;=MNE:F�?ADM@AB�@>�yRhMD<A��Iz{\|}��~d}��~�\�Y��d\�]�� v�ktST_�j ŜR_k��;=M:�_kL�� GEsQtS��j ŜR_k��;=M:�QL�� [|}��~d}��\�Y��d\�]�� vQQtST��j_k��;=M:�_kL�� v�ktST��j ŜR_k��;=M:�Q�L�� [[|}��~�\�Y��d\��]�� G=ANEMD�AhMD<M@E>:��;=M:�_k�L�

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FIGURE C-13

SARAH.GARLAND

Line

SARAH.GARLAND

Line

SARAH.GARLAND

Line

SARAH.GARLAND

Line

SARAH.GARLAND

Line

SARAH.GARLAND

Line

APPENDIX E

Staple Bend Tunnel Site Photos (Figure E-1 through E-12)

1+50 South Wall 1+55 South Wall 1+60 South Wall 1+65 South Wall 1+85 South Wall 2+15 South Wall

1+50 North Wall 1+55 North Wall 1+60 North Wall 1+65 North Wall 1+85 North Wall 2+15 North Wall

Stations 1+50 to 2+15

FIGURE E-1

2+25 South Wall 2+35 South Wall 2+40 South Wall 2+45 South Wall 2+55 South Wall 2+65 South Wall

2+25 North Wall 2+35 North Wall 2+40 North Wall 2+45 North Wall 2+55 North Wall 2+65 North Wall

Stations 2+25 to 2+65

FIGURE E-2

2+70 South Wall 2+80 South Wall 2+90 South Wall 3+00 South Wall 3+35 South Wall 3+60 South Wall

2+70 North Wall 2+80 North Wall 2+90 North Wall 3+00 North Wall 3+35 North Wall 3+60 North Wall

Stations 2+70 to 3+60

FIGURE E-3

3+70 South Wall 3+80 South Wall 3+90 South Wall 4+00 South Wall 4+10 South Wall 4+20 South Wall

3+70 North Wall 3+80 North Wall 3+90 North Wall 4+00 North Wall 4+10 North Wall 4+20 North Wall

Stations 3+70 to 4+20

FIGURE E-4

4+25 South Wall 4+40 South Wall 4+50 South Wall 4+55 South Wall 4+65 South Wall 4+70 South Wall

4+25 North Wall 4+40 North Wall 4+50 North Wall 4+55 North Wall 4+65 North Wall 4+70 North Wall

Stations 4+25 to 4+70

FIGURE E-5

4+85 South Wall 4+95 South Wall 5+05 South Wall 5+15 South Wall 5+20 South Wall

4+85 North Wall 4+95 North Wall 5+05 North Wall 5+15 North Wall 5+20 North Wall

Stations 4+85 to 5+20

FIGURE E-6

5+25 South Wall 5+40 South Wall 5+45 South Wall 5+50 South Wall 5+60 South Wall 5+65 South Wall

5+25 North Wall 5+40 North Wall 5+45 North Wall 5+50 North Wall 5+60 North Wall 5+65 North Wall

Stations 5+25 to 5+65

FIGURE E-7

5+70 South Wall 5+75 South Wall 5+80 South Wall 5+85 South Wall 5+90 South Wall 6+00 South Wall

5+70 North Wall 5 +75 North Wall 5+80 North Wall 5 +85 North Wall 5+90 North Wall 6+00 North Wall

Stations 5+70 to 6+00

FIGURE E-8

6+05 South Wall 6+15 South Wall 6+20 South Wall 6+25 South Wall 6+30 South Wall 6+35 South Wall

6+05 North Wall 6+15 North Wall 6+20 North Wall 6+25 North Wall 6+30 North Wall 6+35 North Wall

Stations 6+05 to 6+35

FIGURE E-9

6+45 South Wall 6+50 South Wall 6+65 South Wall 6+70 South Wall 6+75 South Wall 6+85 South Wall

6+45 North Wall 6+50 North Wall 6+65 North Wall 6+70 North Wall 6+75 North Wall 6+85 North Wall

Stations 6+45 to 6+85

FIGURE E-10

6+90 South Wall 7+00 South Wall 7+05 South Wall 7+10 South Wall 7+15 South Wall 7+20 South Wall

6+90 North Wall 7+00 North Wall 7+05 North Wall 7+10 North Wall 7+15 North Wall 7+20 North Wall

Stations 6+90 to 7+20

FIGURE E-11

7+25 South Wall 7+30 South Wall 7+35 South Wall 7+40 South Wall 7+45 South Wall 7+50 South Wall

7+25 North Wall 7+30 North Wall 7+35 North Wall 7+40 North Wall 7+45 North Wall 7+50 North Wall

Stations 7+25 to 7+50

FIGURE E-12

ALPOSitePlan.pdf

Sheets and Views

Compiled Appendix AsOf 2-18-2025.pdf

SD Appendix Titles.pdf

ALPOLocationMap.pdf

Sheets and Views

ALPOGeologyMap.pdf

Sheets and Views

Lab Testing Table.pdf

ALPOLab Testing.pdf

ALPO Tilt Test.pdf

1+50 to 5+20.pdf

5+25 to 7+50.pdf

NPS Sustainability Checklist.pdf

NPS-ProjectSustainabilityChecklist_4-5-23_508.pdf

Binder1.pdf

NPS-ProjectSustainabilityChecklist_4-5-23_508_2.pdf

NPS Constructability Checklist.pdf

NPS Structural Geology - Planar 105.pdf

NPS Structural Geology - Wedge 285.pdf

NPS Structural Geology - Planar 285.pdf

NPS Structural Geology - Wedge 105.pdf

NPS Structural Geology - Toppling 105.pdf

NPS Structural Geology - Toppling 285.pdf

Combined Unwedge.pdf

1+75

2+15

2+35

5+40

6+45

6+45E

6+75

1999_ALPO Staple Bend Tunnel Preservation_1999 CDs.pdf

staples_scan_1712098751438

staples_scan_1712098806590

staples_scan_1712098848895

staples_scan_1712098889578

STAPLE BEND TUNNEL.pdf

Sheets and Views

1 G1 COVER SHT

2 G2 STG PLAN - 2

3 S1 SITE LAY - 3

4 S2 GEO PROF 1 - 4

5 S3 GEO PROF 2 - 5

6 S4 GEO PROF 3 - 6

7 S5 GEO PROF 4 - 7

8 S6 RB & SHORTING LOC - 8

9 S7 RB & SHORTING DTL - 9

10 S8 TYP TNL SECT - 10

NPS Cost Estimate.pdf

Sheet1

Sheet2

Sheet3

Sheet4

Sheet5

Sheet6

Sheet7

Sheet8

CL1

CL2

CL3

CL4

CL5

CL6

CL7

CL8A

CL8B

CL9

CL10

CL11

CL12

CL13

CL14

CL15

Sheet9

Sheet10

Proposed Wedge Combined.pdf

1+75P

2+15P1

2+15P2

2+35P

2+70P

3+40P

3+90P

4+55P

4+90 P

5+40 P

6+45 P

6+75 P

STAPLE BEND TUNNEL.pdf

Sheets and Views

1 G1 COVER SHT

2 G2 STG PLAN - 2

3 S1 TNL ORI - 3

4 S2 PROP & EX MIT 1 - 4

5 S3 GEO PROF 2 - 5

6 S4 GEO PROF 3 - 6

7 S5 GEO PROF 4 - 7

8 S6 RB & SHORTING LOC - 8

9 S7 RB & SHORTING DTL - 9

10 S8 TYP TNL SECT - 10

STAPLE BEND TUNNEL.pdf

Sheets and Views

1 G1 COVER SHT

2 G2 STG PLAN - 2

3 S1 TNL ORI - 3

4 S2 PROP & EX MIT 1 - 4

5 S3 GEO PROF 2 - 5

6 S4 GEO PROF 3 - 6

7 S5 GEO PROF 4 - 7

8 S6 RB & SHORTING LOC - 8

9 S7 RB & SHORTING DTL - 9

10 S8 TYP TNL SECT - 10

File details come from the government source that posted it. Updated Aug 21, 2026.