HomeMy WebLinkAbout13_Nissan Site Plan - Geotech_02.pdf APPENDIX A
Plates
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.............. 1 • • . • • • • •
Date Completed, 6/21/2010 Logged By. W RaynnIck
Location 5 ft SW of Surveyed/Staked Point# 10121 -See Site Map,Plate 2.Appendix A
Drill Operator Duneman Construction Method Rubber Tired Backhoe
Elev Top of Hole 4792 Total Depth 8 0 Groundwater Depth 12.0
F 1 2.0
d x
z O }
O m w rn
E_• � w w W a w J
j F DESCRIPTION NOTES
�a aaa w � O c
w
a 2� m
w Q QZ) -1O w O n
w 0 0 cnz mLL 0
Two sooil Organic/Lean Clay,Black,SoftNery Soft,
oiNl -sZ�urated,High Plasticity,(OUCL)
:L•.�1To• �
Lean Clay Gray with Reddish Brown Mottling,Wet.Very Soft, Moisture Content=48.9%
High Plasticity,(CL) Minus 200=62%
Plastic Index =22
Lean Cla with Trace/Some Gravel Gray with Reddish Brown
an ig ray oIffing vVet,very S6fl. High Plasticity.(CL)
a Silt Gh Sand and Cobbles Brown/Gray.Wet.
° °o wm Mnese o eryry nse, rams ar Non-PlasUc/Low
o D Plasticity of Fines,(GM)
DC C 0
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U LOG OF TEST PIT TP-01 PLATE
Rimrock En ineerin J&D Family Minor Subdivision- Phase 1 and 2 1 of 1
o g g Lots 1, 2, & 3- Billion Auto Plaza
N
Y Bozeman, Montana
c) Drafted By W Reynolds Project No.. 07-115-03
Date 7/1/2010 File Number. Big Sky Land Consulting, LLC
Rlmod Erg�rq
Date Completed 6/21/2010 Logged By w Reynnlric
Location 5 ft N of Surveyed/Staked Point# 10126-See Site Map,Plate 2.Appendix A
Drill Operator Duneman Construction Method Rubber Tired Backhoe
Elev Top of Hole 4791 Total Depth 8 0 Groundwater Depth. I SZ 2'5
F 1 2.5
r aw X
Z m a > w
O w
w w ° w DESCRIPTION NOTES
j a amr O> L
w can viz mLL of X O
ToT 'I Organic/Lean Clay.Black,SofVVery Soft.
aM st/baturated.High Plasticity,(OUCL)
Lea_ n Clay Gray withReddish Brown Mottling Wet.Very Soft,
High as rcit , CL
Lean Cla with Trace/Some Gravel Gray with Reddish Brown
an rg ray o ing Wet_ ery o _ High Plasticity,(CL)
MediSilty Gravel with Sand and Cobbles Brown/Gray,Wet,
um Dense to VeeryryDense,bran.r Non-Plastic/Low
o D Plasticity of Fines (GM)
0
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End of Test Pit
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LOG OF TEST PIT TP-02 PLATE
Rimrock Engineering J&D Family Minor Subdivision - Phase 1 and 2 1 of 1
o g g Lots 1, 2, & 3- Billion Auto Plaza
Y Bozeman, Montana
o Drafted By, W Reynolds Project No 07-115-03 4
Date: 7/1/2010 File Number Big Sky Land Consulting, LLC
Rmork Erp-v
Date Completed 6/21/2010 Logged By W Reynnldss
Location 10 ft SW of Surveyed/Staked Point# 10124-See Site Map,Plate 2,Appendix A
Drill Operator Duneman Construction Method Rubber Tired Backhoe
Elev Top of Hole 4793 Total Depth 80 Groundwater Depth I :�Z 2 5
F 1 2.5
LU
z a O itff >
m w
P w w� a w J DESCRIPTION NOTES
a = J J W cn > U
> F a o m fit- o L
a 22 o @
w o can _can z m o w O
Tooil Organic/Lean Clay,Black,SoftNery Soft.
;� .•;:;� oiM st/Saturated,High Plasticity.(OL/CL)
Lean Clay Gray with Reddish Brown Mottling.Wet,Very Soft,
High Plasticity,(CL)
Lean CIa with Trace/Some Gravel Gray with Reddish Brown
an ig ray ottling.Vvet,very Sok High Plasticity.(CL)
Silty Gravel with Sand and Cobbles Brown/Gray.Wet.
°o A�ium enserryy Dense Vranular Non-Plastic/Low
o D Plasticity of Fines.(GM)
0
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LOG OF TEST PIT TP-03 PLATE
RIC71rOCk Engineering J&D Family Minor Subdivision - Phase 1 and 2 1 of 1
o g g Lots 1, 2, & 3 - Billion Auto Plaza
N
o Drafted By. W Reynolds Project No.: 07-115-03 Bozeman. Montana
Date 7/1/2010 File Number: Big Sky Land Consulting, LLC
R—a ErU.—,W,
Date Completed 6/21/2010 Logged By W Rpynolris
Location 5 fL SE of Surveyed/Staked Point# 10127-See Site Map Plate 2.Appendix A
Dnll Operator Duneman Construction Method_ Rubber Tired Backhoe
Elev Top of Hole 4798 Total Depth 8 0 Groundwater Depth I V 2.5
F1 25
a- x
z Om
w >- rn
w w w > i DESCRIPTION NOTES
> F a- am O -E
o_ � 2� m
w Q Q1 �O w O n
W 0 0
ToTopoil Organic/Lean Clay,Black,SofWery Soft,
o►JI s176afurated.High Plasticity,(OUCL)
Lean Clay Gray with Reddish Brown Mottling,Wet,Very Soft,
ig as icity.(CL)
Lean Cla with Trace/Some Gravel Gray with Reddish Brown
an ig ray Mottling e ery oft, High Plasticity,(CL)
- Silty Gravel with Sand and Cobbles Brown/Gray,Wet.
° ° °o wm se o very-Dense.Gra-nTr Non-Plastic/Low
o D C Plasticity of Fines,(GM)
0
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LOG OF TEST PIT TP-04 PLATE
RimrOCk Engineering J&D Family Minor Subdivision - Phase 1 and 2 1 of 1
o g g Lots 1, 2, & 3- Billion Auto Plaza
Ln
Y Bozeman, Montana
o Drafted By: W Reynolds Pro)ect No. 07-115-03 6
Fr IDate 7/1/2010 File Number. Big Sky Land Consulting, LLC
RmW EIU—..V --
Date Completed 6/21/2010 Logged By W R=nlrlc
Location 5 ft.NW of Surveyed/Staked Point# 10129-See Site Map,Plate 2.Appendix A
Drill Operator Duneman Construction Method Rubber Tired Backhoe
Elev Top of Hole 4799 Total Depth 80 Groundwater Depth I 2.5
F 1 2.5
r M x
z O }
m w o,
w w a w DESCRIPTION NOTES
J J W (n
j a am �r 0 r
w o- 2 2-5 00 0 o ca.
w 0 va) (nn Z iL�
topsoil Organic/Lean Clay.Black,Soft/Very Soft.
'•;�.'';; Moist/saturated,High Plasticity_(OUCL)
Lean Cl Gray with Redchsh Brown Mottling,Wet Very Soft.
High Plasticity,(CL)
Lean Cla with Trace/Some Gravel Gray with Reddish Brown
an ig ray onling,Wet v&TSoT1. High Plasticity,(CL)
0— Silty Gravel with Sand and Cobbles Brown/Gray Wet.
°0 IR ium nse o erryy Dense, ranu ar Non-Plastic/Low
o D Plasticity of Fines (GM)
0
o D
0
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0
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0
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0
End of Test Pit
a 790
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4
7
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LOG OF TEST PIT TP-05 PLATE
C J&D Family Minor Subdivision- Phase 1 and 2 1 of 1
Rimrock Engineering Lots 1, 2, & 3- Billion Auto Plaza
Y — Bozeman. Montana
o Drafted By: W Reynolds Project No. 07-115-03
Date: 7/1/2010 File Number Big Sky Land Consulting, LLC
Rmodc Erprrer u
Date Completed 6/21/2010 Logged By W Reynnlris
Location 10 ft S of Surveyed/Slaked Point# 10110-See Site Map,Plate 2.Appendix A
Drill Operator Duneman Construction Method Rubber Tired Backhoe
Elev Top of Hole 4797 Total Depth 80 Groundwater Depth. 2.8
F 1 2.8
LIJ
z a O
} 0)
w w w a w DESCRIPTION NOTES
a amF
wo En cant m� tj
�c �Tooil Organic/Lean Clay,Black,Soft/Very Soft.
oifVl st/5afurated,High Plasticity,(OUCL)
Lean Clay Gray with Reddish Brown Mottling,Wet,Very Soft.
g-F Plasticity (CL)
795
o Silt Gravel with Sand and Cobbles Brown/Gray,Wet.
° ° °o win Dense o very rise. ranu ar Non-Plastic/Low
o D Plasticity of Fines,(GM)
0
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LOG OF TEST PIT TP-06 PLATE
J&D Family Minor Subdivision - Phase 1 and 2 1 of 1
Rimrock Engineering Lots 1, 2 & 3 Billion Auto Plaza
y Bozeman, Montana p
o Drafted By W Reynolds Project No. 07-115-03 (�
Date 7/1/2010 File Number I Big Sky Land Consulting. LLC
Date Completed 6/21/2010 Logged By. W Re molds
Location 10 ft NE of Surveyed/Staked Point# 10119-See Site Map,Plate 2.Appendix A
Doll Operator Duneman Construction Method. Rubber Tired Backhoe
Elev.Top of Hole 4797 Total Depth 80 Groundwater Depth: I SZ 3.0
F 1 3.0
a x
p r m� a o
= J J w > DESCRIPTION NOTES
w a � �
g2 pp O ❑ a
w o U)i U)Z m Lk 0 w Ir 19
Tooil Organic/Lean Clay,Black.Soft/Very Soft,
orM st/5aturated,High Plasticity,(OUCL)
��•'JTv•:
Lean Clay Gray,with Reddish Brown Mottling,Wet,Very Soft,
rH gh Plasticity,(CL)
X M -
Lean Cla with Trace/Some Gravel Gray with Reddish Brown
an rg ray 'TUing, Wet,very Soft, High Plasticity.(CL)
o — Silt Gravel with Sand and Cobbles Brown/Gray.Wet
ense o erryy ense. ranuFar Non-Plastic/Low
o D Plasticity of Fines.(GM)
0
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End of Test Pit
4
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LOG OF TEST PIT TP-07 PLATE
Rimrock Engineering J&D Family Minor Subdivision - Phase 1 and 2 1 of 1
g g Lots 1, 2, & 3- Billion Auto Plaza
Y Bozeman. Montana
c Drafted By. W Reynolds Protect No. 07-115-03
Date: 7/1/2010 File Number Big Sky Land Consulting, LLC
Date Completed 6/21/2010 Logged By W Rr ynnlric
Location 5 ft S of Surveyed/Staked Point# 10115-See Site Map,Plate 2,Appendix A
Drill Operator Duneman Construction Method Rubber Tired Backhoe
Elev Top of Hole 4794 Total Depth 80 Groundwater Depth I V.2 5
F125
uJ
z a o
m W > �
O a- 01 o
Q = w J W > DESCRIPTION NOTES
> a o m �:�- p r
2 �2 Q.
a w Q Q� -JO w 0 m
w O to cn Z in u_ X 12� O
+ ToTooil OrganiGLean Clay,Black.SoftNery Soft,
:� ,•� MP—Sat si/5aturated, High Plasticity,(OL/CL)
+,•. :��
Lean Cola Gray with Reddish Brown Mottling,Wet,Very Soft,
High Plasticity,(ay Moisture Content=28 2%
Minus 200=55%
Plastic Index=17
o Silty Gravel with Sand and Cobbles Brown/Gray,Wet,
°o wm nse to very Dense,Gra ar Non-PlastiULOW
10 0< Plasticity of Fines,(GM)
0
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End of Test Pit
a' 785
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Q LOG OF TEST PIT TP-08 PLATE
Rimrock En ineerin J&D Family Minor Subdivision - Phase 1 and 2 1 of 1
o g g Lots 1, 2. & 3- Billion Auto Plaza
o Drafted By' W Reynolds Protect No-: 07-115-03 Bozeman, Montana 10
Date 7/1/2010 File Number: Big Sky Land Consulting, LLC
R—*E Q.—M
Date Cornpleted 6/21/2010 Logged By. W Reynnlris
Location 5 ft N of SurveyedrStaked Points! 10113-See Site Map,Plate 2,Appendix A
Drill Operator Duneman Construction Method Rubber Tired Backhoe
Elev Top of Hole 4793 Total Depth 80 Groundwater Depth 12.0
F 1 2.0
W x x
z in w > o,
OF W w i a w � DESCRIPTION NOTES
Q F 0- a-M p _E
W a 2 22 00 rJ 0 m
J J W Q Q D O W Q
W O (n (n Z rD W tr 13� 0
To I
oi M Organic/Lean Clay,Black,Soft/Very Soft,
�:�„.:•�;� st/5aturated,High Plasticity,(OL/CL)
Lean Clay Gray with Reddish Brown Mottling,Wet,Very Soft,
rFi gFi�city.(CL)
o Silt Gravel with Sand and Cobbles Brown/Gray,Wet,
o ° °o wm ense to very Dense,Granular Non-Plastic/Low
Plasticity of Fines,(GM)
0
o ° °o
o D
DC C1 0
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0
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— ° ° °°
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� oll
End of Test Pit
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LOG OF TEST PIT TP-09 PLATE
Rim
Engineering J&D Family Minor Subdivision - Phase 1 and 2 1 of 1
o g g Lots 1, 2, & 3- Billion Auto Plaza
x Bozeman, Montana 11
0 Drafted By W Reynolds Project No.: 07-115-03
Fr Date 7/1/2010 File Number: BigSkyLand Consulting. LLC
Date Completed 6/21/2010 Logged By W Revnnlds
Location 5 ft S of Surveyed/Staked Point# 10105-See Site Map. Plate 2,Appendix A
Drill Operator Duneman Construction Method. Rubber Tired Backhoe
Elev Top of Hole 4791 Total Depth 8 0 Groundwater Depth I SZ 2A
F 1 2.0
ZZ
W x
Z mO W > rn
t= w w o w � DESCRIPTION NOTES
Q = J J W Cn > U
> F a am O t
w Q Q� OJO U 0 T
W rn Cn 7- [D 0 U'
ToTo oil OrganictLean Clay,Black,Soft/Very Soft,
moist/bat urated,High Plasticity,(OUCL)
Lean Clay Gray with Reddish Brown Mottling,Wet,Very Soft,
iH gh Plasticity,(CL)
o Silt Gravel with Sand and Cobbles Brown/Gray.Wet.
ium Dense to very Dense, rams ar Non-Plastic/Low
o D Plasticity of Fines.(GM)
0
o D
0
a
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Ic 0
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o D
5 °
OR, °o
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0
a ° °a
10 0
0
End of Test Pit
a
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LOG OF TEST PIT TP-10 PLATE
Rimrock En ineerin 3&D Family Minor Subdivision- Phase 1 and 2 1 of 1
o g g Lots 1, 2, &3- Billion Auto Plaza
Vl
Y Bozeman, Montana
o Drafted By W Reynolds Protect No 07-115-03 12
Date 7/1/2010 Fite Number Big Sky Land Consulting, LLC
UNIFIED SOIL CLASSIFICATION SYSTEM
MAJOR DIVISIONS USCS TYPICAL
SYMBOL DESCRIPTIONS
GW WELL-GRADED GRAVELS,GRAVEL-SAND
CLEAN GRAVELS : MIXTURES WITH LITTLE OR NO FINES
GRAVELS WITH LITTLE OR NO FINES
POORLY-GRADED GRAVELS.GRAVEL-SAND(More than half of c GP MIXTURES WITH LrTTLE OR NO FINES
coarse fraction Q
is larger than
the#4 sieve) o GM SILTY GRAVELS.GRAVEL-SILT-SAND
GRAVELS MIXTURES
COARSE WITH OVER
GRAINED 12% FINES CLAYEY GRAVELS.GRAVEL-SAND-CLAY
SOILS GC MIXTURES
(More than half SW WELL-GRADED SANDS,SAND-GRAVEL
of material CLEAN SANDS MIXTURES WITH LITTLE OR NO FINES
Is larger than SANDS WITH LITTLE
the#200 sieve) (More than half of OR NO FINES
coarse fraction Sp POORLY-GRADED SANDS,SAND-GRAVEL
is smaller than is
WITH LITTLE OR NO FINES
the#4 sieve)
SM SILTY SANDS,SAND-GRAVEL-SILT MIXTURES
SANDS WITH
OVER 12% FINES
SC CLAYEY SANDS,SAND-GRAVEL-CLAY MIXTURES
INORGANIC SILTS&VERY FINE SANDS,
M L SILTY OR CLAYEY FINE SANDS
CLAYEY SILTS WITH SLIGHT PLASTICITY
SILTS AND CLAYS INORGANIC CLAYS OF LOW TO MEDIUM
C,L PLASTICITY.GRAVELLY CLAYS,SANDY CLAYS.
(Liquid limit less than 50) SILTY CLAYS.LEAN CLAYS
FINE —
GRAINED —
SOILS — OL ORGANIC SILTS&ORGANIC SILTY CLAYS
OF LOW PLASTICITY
(More than half M H INORGANIC SILTS.MICACEOUS OR
of material DIATOMACEOUS FINE SAND OR SILT
Is smaller than
the#200 sieve) SILTS AND CLAYS
CH INORGANIC CLAYS OF HIGH PLASTICITY.
(Liquid limit greater than 50) FAT CLAYS
OH ORGANIC CLAYS&ORGANIC SILTS
OF MEDIUM-TO-HIGH PLASTICITY
LOAMS UNDER USDA SOIL CLASSIFICATION SYSTEM,
SOIL OF APPROXIMATELY EQUAL SANDISILT/CLAY
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UNIFIED SOIL CLASSIFICATION SYSTEM PLATE
��Rimrock Engineering J&D Family Minor Subdivision - Phase 1 and 2
g g Lots 1. 2, & 3- Billion Auto Plazain
13 x Bozeman, Montana
U
°0 Drafted By. W.Reynolds Project No.: 07-115-03
2 Date: 7/1/2010 File Number: BigSkyLand Consulting, LLC
CW rW%Rm ck Erg-W.Inc.2003
LOG SYMBOLS
PERCENT FINER
BULK BAG SAMPLE -4 THAN THE NO 4 SIEVE
(ASTM Test Method C 136)
PERCENT FINER
MODIFIED CALIFORNIA SAMPLER -200 THAN THE NO 200 SIEVE
(2-112 inch outside diameter) (ASTM Test Method C 117)
CALIFORNIA SAMPLER LL LIQUID LIMIT
(3 inch outside diameter) (ASTM Test Method D 4318)
STANDARD PENETRATION PLASTICITY INDEX
SPLIT SPOON SAMPLER PI (ASTM Test Method D 4318)
(2 inch outside diameter)
El EXPANSION INDEX
ti GEOPROBE (UBC STANDARD 29-2)
COL COLLAPSE POTENTIAL
ROCK CORE
V WATER LEVEL UC ASTMNT N ED Method D 2ESSION
(level where first encountered)
166)
WATER LEVEL
(level after completion)
Ii SEEPAGE MC MOISTURE CONTENT
(ASTM Test Method D 2216)
GENERAL NOTES
1 Lines separating strata on the logs represent approximate boundaries only Actual transitions may be gradual
2 No warranty is provided as to the continuity of soil conditions between individual sample locations
3.Logs represent general sod conditions observed at the pant of exploration on the date indicated
4 In general Unified Soil Class6cation System designations presented on the logs were evaluated by visual methods only
Therefore,actual designations(based on laboratory tests)may vary
a
4
LOG KEY PLATE
x J&D Family Minor Subdivision - Phase 1 and 2
Rimrock Engineering Lots 1, 2. &3- Billion Auto Plaza
13
Y Bozeman, Montana 4
o Drafted By. W Reynolds Project No- 07-115-03
Date: 7/12010 File Number: Big Sky Land Consulting, LLC
CmyrgM thnork Erpn+M+V,Irr:f10 i
SIEVE SIZE
3" 1-1/2" 3/4" 3/8" #4 #8 #10 #16 #30 #40 #50 #100 #200
100 -- —
90
80
70
z
rn
Q
a
z 50
w
U
tY
a 40
30
20
10
0
10 1 01
PARTICLE SIZE IN MILLIMETERS
coarse fine coarse medium fine
GRAVEL SAND
LEGEND: SOURCE DEPTH COBBLES GRAVEL SAND FINES DESCRIPTION
(ft) (%) (%) (%) (%)
• TP-01 15 0 0 38 62 SANDY LEAN CLAY(CL)
m TP-08 2.0 0 18 26 55 SANDY LEAN CLAY with GRAVEL(CLi
0
a'
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SIEVE ANALYSIS PLATE
Rimrock En ineerin J&D Family Minor Subdivision - Phase 1 and 2 1 of 1
g g Lots 1. 2, &3- Billion Auto Plaza 15
Y Bozeman, Montana
o Drafted By W Reynolds Protect No 07-115-03
Date- 7/1/2010 File Number
CoprgN R— *Erp—Mm 1.2003
60 70 80 90 100
GROUP UNIFIED SOIL CLASSIFICATION /
60
SYMBOL FINE GRAINED SOIL GROUPS /
Organic sifts and organic silly
Z clays of low plasticity /
p - / U LINE /AL
Inorganic clayey silts to very /
Q ® fine sands of slight plasticity
50
Z a Inorganic clays of low 77
J to moderate plasticity y /
a ® /
Organic clays of moderate to high /
x plasticity,organic siltsLU
/
❑ Inorganic silts and /
clayey silts / 40
Inorganic clays ofEl d
high plasticity /
/ X
/ W
/ 0
3 /
// - 30 H
/ U
n rn W
Q
� J
2FCQ// a
20
/ m
10 �'� 10
I r OL
I
0
10 20 30 40 50 60 70 80 90 100
LIQUID LIMIT (LL)
LEGEND: SOURCE DEPTH LL PL PI DESCRIPTION
• TP-01 1.5 45 23 22 SANDY LEAN CLAY(CL)
Q TP-08 2.0 35 18 17 SANDY LEAN CLAY with
GRAVEL(CL)
0
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O
PLASTICITY CHART PLATE
cr J&D Family Minor Subdivision- Phase 1 and 2
Rimrock Engineering Lots 1, 2, & 3- Billion Auto Plaza
Y Bozeman, Montana 16
o Drafted By W.Reynolds Project No.: 07-115-03
Date: 7N/2010 File Number: Big Sky Land Consulting. LLC
copynyY ianrrx*E gr—rffq,Im 2003
APPENDIX B
Suggested Specifications
For
Earthwork Construction
APPENDIX B
SUGGESTED SPECIFICATIONS FOR
EARTHWORK AND PAVEMENT CONSTRUCTION
BILLION AUTO PLAZA
BOZEMAN, MONTANA
1.0 GENERAL
1.1 Scope - The work done under these specifications shall include clearing,
stripping. removal of unsuitable material, excavation. preparation of natural soils,
placement and compaction of on-site and imported structural fill material, and
placement and compaction of pavement materials
1.2 Contractor's Responsibility - A geotechnical investigation was performed for
the project by Rimrock Engineering dated July 1. 2010. The Contractor shall
attentively examine the site in such a manner that he can confirm existing
surface conditions with those presented in the geotechnical report. He shall
satisfy himself that the quality and quantity of exposed materials and subsurface
soil or rock deposits have been satisfactory represented by the Geotechnical
Engineer's report and Civil Engineer's drawings. Any discrepancy that may be of
prior knowledge to the Contractor or that is revealed through his investigations
shall be made available to the Owner. It is the Contractor's responsibility to
review the attached report prior to construction. The selection of equipment for
use on the project and the order of work will similarly be his responsibility such
that the requirements included in following sections have been met.
1.3 Geotechnical Engineer - The work covered by these specifications shall be
observed and tested by the Geotechnical Engineer, Rimrock Engineering. who
shall be hired by the Owner The Geotechnical Engineer will be present during
the site preparation and grading to observe the work and to perform the tests
necessary to evaluate material quality and compaction. The Geotechnical
Engineer shall submit a report to the Owner. including a tabulation of all tests
performed. The costs of retesting of unsuitable work performed by the
Contractor shall be deducted from the payments to the Contractor.
1.4 Standard Specifications - Where referred to in these specifications, "Standard
Specifications" shall mean the current Montana Public Works Standard
Specifications dated April 2010.
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1.5 Compaction Test Method - Where referred to herein, relative compaction shall
mean the in-place dry density of soil expressed as a percentage of the maximum
dry density of the same material. as determined by ASTM D698 Compaction Test
Procedure. Optimum moisture content shall mean the moisture content at
maximum dry density as determined above
2.0 SITE PREPARATION
2.1 Clearinq - Areas to be graded shall be cleared and grubbed of all vegetation and
debris. These materials shall be removed from the site by the Contractor.
2.2 Stripping - Surface soils containing roots and organic matter shall be stripped
from areas to be graded and stockpiled or discarded as directed by the Owner.
In general, the depth of stripping of the topsoil will be approximately six inches.
Deeper stripping, where required to remove weak soils or accumulations or
organic matter, shall be performed when determined by the Geotechnical
Engineer. Strippings shall be removed from the site or stockpiled at a location
designated by the Owner.
2.3 Removal of Existing Fill - Existing fill soils, trash, and debris in the areas to be
graded shall be removed prior to the placing of any compacted fill. Portions of
any existing fills that are suitable for use in compacted fill may be stockpiled for
future use. All organic material. topsoil, expansive soils. oversize material or
other unsuitable material shall be removed from the site by the Contractor or
disposed of at a location on site, if so designated by the Owner.
2.4 Ground Surface - The ground surface exposed by stripping shall be scarified to
a depth of six inches, moisture conditioned to the proper moisture content for
compaction. and compacted as required for compacted fill Recompaction shall
be approved by the Geotechnical Engineer prior to placing fill.
3.0 EXCAVATION
3.1 General - Excavations shall be performed to the lines and grades indicated on
the plans. The data presented in the geotechnical investigation report is for
information and only the Contractor shall make his own interpretation with regard
to the methods and equipment necessary to perform the excavation and to obtain
material suitable for fill.
3.2 Materials - Soils which are removed and are unsuitable for fill should be placed
in non-structural areas of the project. When necessary, these soils may be
placed in deeper fills if approved by the Geotechnical Engineer.
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3.3 Treatment of Exposed Surface - The ground surface exposed by excavation
shall be scarified to a depth of six inches, moisture conditioned to the proper
moisture content for compaction, and compacted as required for compacted fill.
Recompaction shall be approved by the Geotechnical Engineer prior to placing
fill.
4.0 STRUCTURAL FILL
4.1 Limits — Structural fill, if required for fill beneath foundations or concrete sla-on-
grade should be medium dense to dense gravel with sand.
4.2 Material —We recommend the gradation for structural fill be 100% passing the 3-
inch sieve. 25 to 65% passing the No 4 sieve, and no more than 20% minus No.
200 sized material The structural fill should have a liquid limit less than 25 and a
plasticity index less than 15.
4.3 Placement - All fill materials shall be placed in layers of eight inches or less in
loose thickness and uniformly moisture conditioned. The lift should then be
compacted with approved compaction equipment to achieve at least 98% relative
compaction in areas under structure foundations. No fill material shall be placed,
spread. or rolled while it is frozen or thawing, or during unfavorable weather
conditions.
4.4 Benching - Fill placed on slopes steeper than 5 horizontal to 1 vertical shall be
keyed into firm, native soils or rock by a series of benches. Benching can be
conducted simultaneously with placement of fill. However, the method and
extent of benching shall be checked by the Geotechnical Engineer.
4.5 Compaction Equipment - The Contractor shall provide and use sufficient
equipment of a type and weight suitable for the conditions encountered in the
field. The equipment shall be capable of obtaining the required compaction in all
areas, including those that are inaccessible to ordinary rolling equipment.
4.6 Recompaction - When, in the judgment of the Geotechnical Engineer, sufficient
compaction effort has not been used, or where the field density tests indicate that
the required compaction or moisture content has not been obtained, or if
"pumping" or other indications of instability are noted, the fill shall be reworked
and recompacted as needed to obtain a stable fill at the required density and
moisture content prior to placing additional fill materials.
4.6 Responsibility - The Contractor shall be responsible for the maintenance and
protection of all embankments and fills made during the contract period and shall
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bear the expense of replacing any portion which has become displaced due to
carelessness, negligent work, or failure to take proper precautions.
5.0 UTILITY TRENCH BEDDING AND BACKFILL
5.1 Material - Pipe bedding shall be defined as all material within six inches of the
perimeter of the pipe. Backfill shall be classified as all material within the
remainder of the trench. Material for use as bedding shall consist of clean,
granular materials. and shall conform to requirements for bedding material listed
in the Standard Specifications.
5.2 Placement and Compaction - Pipe bedding shall be placed in thin layers not
exceeding eight inches in loose thickness, and conditioned to the proper
moisture content for compaction.
All other trench backfill shall be placed in thin layers not exceeding eight inches
in loose thickness, conditioned to the proper moisture content, and compacted as
required for adjacent fill. If not specified, backfill should be compacted to at
least 97% relative compaction in areas under structures, utilities,
roadways, parking areas, concrete flatwork, and to 90% relative
compaction in undeveloped areas.
6.0 AGGREGATE BASE FOR CONCRETE SLABS
6.1 Material - Aggregate base for concrete slabs shall consist of crushed base rock
conforming to requirements of the Standard Specifications.
6.2 Placement - Aggregate base shall be compacted and kept moist until placement
of concrete. Compaction shall be by suitable vibrating compactors. Aggregate
base shall be placed in layers not exceeding eight inches in thickness. Each
layer shall be compacted by at least four passes of the vibratory compaction
equipment or until 95% relative compaction has been obtained.
7.0 SUBGRADE AND AGGREGATE BASE FOR PAVED AREAS
7.1 Subgrade and Subbase Preparation - After completion of the utility trench
backfill and prior to placement of aggregate base. the upper six inches of
subgrade soil shall be uniformly compacted to at least 95% relative compaction
This may require scarifying, moisture conditioning. and compacting in both cut
and fill areas.
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7.2 Aggregate Base - Aggregate materials shall meet the requirements of the
appropriate sections of the "Standard Specifications" for 1-1/2 Minus Crushed
Base Rock. The aggregate base materials must be approved by the
Geotechnical Engineer prior to use.
After the subgrade is properly prepared, the aggregate base shall be placed in
layers, moisture conditioned as necessary, and compacted by rolling to at least
95% relative compaction. The compaction thickness of aggregate base shall be
as shown on the approved plans.
8.0 ASPHALT CONCRETE PAVEMENT
8.1 Thickness - The compacted thickness of asphalt concrete shall be shown on the
approved plans.
8.2 Materials - Aggregate materials for asphalt concrete shall conform to the
requirements listed for Type B or Type S-3 bituminous aggregates in Section
02503-2.2.3 of the "Standard Specifications " Asphalt concrete mixes shall utilize
asphalt cement meeting the requirements of Section 02510 of 'Standard
Specifications'. The Contractor shall submit a proposed asphalt concrete mix
design to the Owner for review and approval prior to paving. The mix design
shall be based on the Marshall Method.
8.3 Placement and Compaction - The asphalt concrete material and placement
procedures shall conform to appropriate sections of the "Standard
Specifications." The asphalt concrete material shall be compacted to a minimum
of 92% of the Theoretical Maximum Rice Specific Gravity.
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APPENDIX C
Application for Authorization to Use
APPENDIX C
APPLICATION FOR AUTHORIZATION TO USE
BILLION AUTO PLAZA
BUILDING LOTS, UTILITIES AND STREETS
BOZEMAN, MONTANA
Big Sky Land Consulting, PLLC
5530 Burnt Road
Bozeman, MT 59714
To whom it may concern
Applicant understands and agrees that the "Preliminary Geotechnical Investigation Report,
Billion Auto Plaza, Building Lots. Streets and Utilities" dated July 1. 2010, Job No. 07-115-03,
for the subject site is a copyrighted document, that Rimrock Engineering. Inc. is the copyright
owner and that unauthorized use or copying of said document for the subject site is strictly
prohibited without the express written permission of Rimrock Engineering, Inc. Applicant
understands that Rimrock Engineering, Inc. may withhold such permission at its sole discretion,
or grant permission upon such terms and conditions as it deems acceptable.
Applicant agrees to accept the contractual terms and conditions between Rimrock Engineering,
Inc. and Big Sky Land Consulting. PLLC originally negotiated for preparation of this document.
Use of this document without permission releases Rimrock Engineering, Inc. from any liability
that may arise from use of this report
To be Completed by Applicant
(company name)
(address)
(city. state, zip)
(telephone) (FAX)
By
Title:
Date
For Rimrock Engineering,Inc.'s use only
approved for re-use with additional fee of S
disapproved. report needs to be updated
By.
(Rimrock Engineering, inc-project manager)
Date.
07-115-03 July 1, 2010
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