HomeMy WebLinkAboutsoils inspection/compaction control .. ,�'
Patrick J Hines, PE
� 15481 Dresden Trafl
Apple Valiey MN 55124
(612) 423.4247
7 October 1997
��C,�1���
r1r Marty Ziermann OCj U � �99�
Marty' s Excavating F phONO
7185 Rutz Lake Road C\-��( O
Mayer MN 55360
Re: Soils Inspection and Compaction Control
Proposed Single Family Residence
Lot 4 Block 4 Sugar Woods
Hennepiii Co (Orono), Minresota
Please be advised that I did, between 30 September 1997 and 5 Uctober 1997,
inspect excavations and perform field and laboratory tests upen compacted
fiil at the above referenced locations. The purpose was to assure conform—
2nce with minimum Building Code provisons. Please accept this letter ar.d
attachments as my report of work accomplished.
I was summoned to the site when it became obvious that, due to the eleva—
tion difference between garage footings and existing terrain, cornbined with
the discovered depth af required excavations, contrailed fill would be nec—
essary below at least below garage footings and, to a lesser extend, below �
residence area footings.
.�..
There were no soil bcrings on the site prior to this work. Rather. , minimum �
Building Code requirements were elected by you to be followed (footings or �
controlled fill to rest upon naturally occurring mineral soi1, firm enough
to support the werk, compaction to be at least 950 of Standard Maximum Den— �
• sity). �
The inspection of the garage area and a portion af the residence area was �
performed by myself on 30 September 1997. I verified that all uncontrolled .'
fi11, buried 'numus and topsoil was removed from ar. ev�rsized building pad �
area. Base soil is a lean clay, gray, mottled, hard in lower elevations,
with a medium condition prevalent in upper 2evels. I probed the bottom of �
the excavation at several points to assure that no "false hottoms" were Qi
present. Water was not present in the excavation. �
Refer to the enclosed sketch for a recording of base of excavation eleva—
ti.ons and oversizing pravided as a function of garage location. Horizontal
and vertical control was provided mostly hy you. I assigned, f�r keeping
track of density test levels, lOU.UC as the bottom of proposed garage foct— ,R
�ngs. Based upon these recordirigs, oversizing is adequate for ali footings.
In the residence area, since natural mineral soil quickly rises to th= south,
there will be very little fi.li over mcst of this area. Hence, I oniy casually
�nspected this area, and did not measure c�versizing, except for applicable
zones near the garage.
• Mr Marty Ziermann
- 7 October 1997
Page 2
Between 30 September and 5 October 1°97 I took nine density tests, in—
cluding three retests, using the sand cone method, on fill that was ap—
plied for footing support. The fill material changed considerably over
the course of the project, so three proctor tests were nece.ssary. Test
results are enclosed. Ncte that, initially, density tests failed. After
re—excavation and recompacting, adjusting compaction methods as necessary,
a11 tests met minimum Building Code standards (equal to or greater than
95% of Standard Maximum Density).
Therefore, it is likel_y that adeGuate site preparation has been performed,
that base soils are suitable to support the work, and that fill, at least
to a level equal to the bottoms of garage footings, has been adequately
compacted. I recommend cor.struction using standard footings.
The limitations of this investigation are essentiaZly as per notations on
the density test sheet. Due to the nature �f soil engineering in general,
no warranty or guarantee of the site is made or implied.
If you have any questions on this project, do not hesitate to contact me
at your convenience.
Respectfully submitted,
`,----__._�--.�• � � ��---�
� , �
� .>`����.r_.�c
Patrick J Hines, PE
enclosures
cc: City of Orono, Building Inspection
PN
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gi� 9/ 8 /9 x �9, 7
91•25 Proposed Garage
Slab = 103.2+
Footing� � 100.Q
�� (arhitrary) �y,�
.-- 4z.s �3' x s 9•br
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Living Area ��'
Footings = 95.5
(arb) �
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4� � � 91,3
93.�
ELEVATIONS OF BASE OF EXCAVATION patr i c!c J H i nes , f'F
AND OVERSIZING PROVIDED 'r�E' ' flresden Tra i J;.
Appte `!al l.ey MN �r1?�'
SCALE: 1�� _ � DqAWN BY �'N
-N- o�TE: 7 OCt �97 . �,> >-•_�,�q�
Proposed Single Family Residence
Lot 4 Block 4 Sugar Woods,� Hennepin Co (Orono),Minn
Client: Marty's Excavating
� Mayer, Minnesota
' Patrick J Hines, PE
15481 Dresden Trail
Apple Valley MN 55124
(612) 423.4247
DENSITY TEST REPORT
7 October 1997
Mr Marty Ziermann .
Marty's Excavating
7185 Rutz Lake Road
Mayer MN 55360
Re: Compaction Control
Proposed Single Family Residence
Lot 4 Block 4 Sugar Woods
Hennepin Co (Orono) , Minn
Date Tested: 30 Sepf +97 1 October '97
Method: ASTM D 1556 (4" Sand Cone)
Tested by: pH
Test No: 1 lA 2
(Retest #1)
Location: @ SE corner± of 7�N,3'W 3'N,3'W
, garage
of SE garage corner
Elevation, or Depth: 90.8 90.3 92.3
� Dry Density, p�f: 96.8 100.3 102.5
% Moisture: 16.2 16.9 12.6
Std Maximum Density, pcf: 111.4 111.4 114.5
'/, Moisture at Maximum: 15.5 15.5 14.6
Relative Density, '/o: �P-1� �P-1� tP-2�
67 90 89�
Comments: FAIL FAIL FAIL
Recoommend Re-excavation & itecompaction
Please be advised that the above test results are a random sample of field con-
ditions. they may or may not be representative of the entire area. No warranty
of the site is made or implied
Respectfully submitted,
� ��
Patrick J Hines, PE
Reg No 12086
copies to: City of Orono, Bldg Insp
T
' Patrick J Hines, PE
15481 Dresden Trail
Apple Valley MN 55124
(612) 423.4247
DENSITY TESI REPQRT
7 October. 1997 •
Mr Marty Ziermann
Marty's Excavating
7185 Rutz Lake Road
Mayer Mn 55360
Re: Compaction Control
Proposed Single Family Residence
Lot 4 Block 4 Sugar Woods
Hennepin Co (Orono), Minn
Date Tested: 2 October 1997 - AM
Method: ASTM D 1556 (4" Sand Cone)
Tested by: pH
Test No: iB 2A 3
(retest 1,1A) (retest 2)
Location: 2'N,6'E $'N,5'E 32'W
of SE Garage Corner
Elevation, or Depth: 91.1 93.1 95.0
Dry Density, pcf: 113.5 112.8 118.8
% Moisture: 14.7 15.0 14.7
Std Maximum Density, pcf: 114.5
�' % Moisture at Maximum: 14.6
�P-2)
Belative Density, %: 99 98� 104
Comments: All tests meet usual requirements (�95% of Std
— Max Density)
Please be advised that the above test resuLts are a random sample of field con-
ditions. they may or may not be representative of the entire area. No warranty
of the site is made or implied
Respectfully submitted,
�_` @C�-'-� �
�-.�..
Pa[ ick J Hines, PE
Reg No 12086
copies to: City of Orono, Bldg Insp
f
. •
Patrick J Hines, PE
15481 Dresden Trait
Apple Valley MN 55124
(612) 423.4247
DENSITY TEST REPORT
7 October 1997 ,
Mr Marty Ziermann
Marty's Excavating
7185 Rutz Lake Road
Mayer MN 55360
r
Re: Compaction Control
Proposed Single Family Residence
Lot 4 Block 4 Sugar Woods
Hennepin Co (Orono), Minn
Date Tested: 2 Oct '97 - PM 5 Qctober 1997
Method: ASTM D 1556 (4" Sand Cone)
Tested by: pR
Test No: 4 5 6
Location: 11'N,22'W of Just inside @ NW Garage
SE Garage Cor NE Gar Cor Corner
Elevation, or Depth: 97.1 98.9± 100.0±
Dry Density, pcf: 119.3 117.8 128.0
% Moisture: 10.8 13.2 10.8
Std Maximum Density, pcf: 116.4
' % Moisture at Maximum: ��'�
�P-3)
xelative Density, %: 102'� l0I 101�
Comments: All tests exceed minimum requirer�ents (�95% of Std Max Density)
Please be advised that the above test results are a random sample of field con-
ditions. they may or may not be representative of the entire area. No warranty
of the site is made or implied
Respectfully $ubmitted,
n� ��
Patrictc J Hines, PE
Reg I3o 12086
copies to: ctcy of Orono, Bd dg Insp
.�
"r��tr�ck J ;',inEs F:
1-'�8� Ire=aen '�r2i:
ar� � , ,� �
e '�`�1.et' C.. :�i_
(6:�) ���'.4��=,
PROCTOR TEST REPORT �.._
(Standard) �"
7 October 1997 ���
Mr Marty Ziermann
Marty's Excavating
7185 Rutz Lake Road
Mayer MN 55360
Re: Compaction Control
Proposed Single Family Residence
Lot 4 Block 4 Sugar Woods
Hennep in Co (Orono) , 14inn
Date Test was Run: 30 September 1997
Method: ASTM D 698
"Method A"
Test Run by: SH
Proctor Number: P_1
Source of Sample: Density Test #1 plus additional
Material from fill area
Soil Class: LEAN CLAY , W/ sand, Yel2owish Brown
w/ tr gravel to Brown (CL)
Standard Maximum Density, pcf 111.4
. Optimum Moisture, '/, 15.5
Curve Attached
Representative Sample Retained
Comments: 100% pass 2" sieve
0.5% pass 2" sieve, retained on 3/4" sieve— discarded
1.6% pass 3/4" sieve, retained on 3/8" sieve — retained
,2.1%
Respectfully submitted,
��
��..s�-�-�— �L�—�
Patrick J Hines, PE
Reg No 12086
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PROCTOR TEST REPORT -�
. (Standard) .:,
7 October 1997
Mr Marty Ziermann
Marty's Excavating
7185 Rutz Lake Road
Mayer MN 55360
i
Re: Compaction Control
Proposed Single Family Residence
Lot 4 Block 4 Sugar Woods
Hennepin Co (Orono), Minn
Date Test was Run: 1 October 1997
Method: AS�M D 698
"Method A"
Test Run by: SH
Proctor Number: P-2
Source of Sample: Density Test #2 plus additional
� material from fill area
Soil Class: SILTY SAND (sand is sl biasesd finer grained)
w/ clay, Yellowish Brown (SM) , w/ a little gravel
StandaFd Maximum Density, pcf 114.5
Optimum Moisture, "/ I4.6
Curve Attached
Representative Sample Retained
Comments: 100% pass 2" sieve
0.7% pass 2" sieve, retained on 3/4" sieve — discarded
3.5'/, pass 3/4" sieve, retained on #4 sieve — retained
4.2%
Resgectfully submitted,
� � ' '
�� �
Patrick J Hines, PE
Reg No 12086
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PROCTOR TEST REPORT �
(Standard) ��'
7 October 1997 '
Mr Marty Ziermann
Marty's Excavating
7185 Rutz Lake Road
Mayer MN 55360
Re: Compaction Control
Proposed Single Family Reaidence
Lot 4 Block 4 Sugar Woods
Hennepin Go (Orono) , Minn
Date Test was Run: 3 Octoher 1997
Method: ASTM D 698
"Method A"
Test Run by: SH
Proctor Number: P-3
Source of Sample: Material from fill area
Soil Class: SILTY FINE SAND, w/ a little clay (SM)� Brown
w/ tr gravel, mostly fine, w/ lumps of
Lean Clay (CI:)
Standard Maximum Density, pcf 116.4
. Optimum Moisture, "/0 13.0
Curve Attached
Representative Sample Retained
Comments: �00% pass 2", 3/4" sieves
0.8% pass 3/4" sieve, retained on #4 sieve — retained
Respectfully submitted,
�, � ��
Patrick J Hines, PE
Reg No 12086
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