HomeMy WebLinkAbout6604-1; Romeria Drainage Improvements; Report of Compaction Testing; 2016-04-12April 12, 2016
Project No. 107544010
Ms. Sherri Howard, PE
City of Carlsbad
1635 Faraday Avenue
Carlsbad, California 92008
Subject: Report of Compaction Testing
Romeria Drainage Improvements (66041)
Carlsbad, California
References: City of Carlsbad, 2015, Improvement Plans for Romeria Drainage Improvements:
dated April 30.
Ninyo & Moore, 2008, Geotechnical Evaluation La Costa Avenue Slope Failure,
Carlsbad, California, Project No. 106270001: dated February 25.
Dear Ms. Howard:
In accordance with your request, we are providing this letter summarizing our observations and
testing performed for the earthwork operations associated with the subject project. The project site
is located within the drainage south of La Costa Avenue, approximately 150 feet west of Romeria
Street (Figure 1). The project generally consisted of the reconstruction of the drainage channel and
construction of a new maintenance road. This report presents a summary of the results from our
field and laboratory testing services performed for the project.
SUMMARY OF EARTHWORK OPERATIONS
Earthwork operations that were observed and tested by our field representative took place between
November 20, 2015 and March 10, 2016. The earthwork operations that our personnel observed
and tested generally included subgrade preparation for the new drainage channel, fill placement for
the embankment for the maintenance road, and the aggregate base materials for the maintenance
road. Earthwork operations were primarily performed utilizing an excavator, a backhoe, and a walk
behind roller. In the process of clearing and grubbing, the contractor encountered wet and soft soil
Romeria Drainage Improvements (66041) April 12, 2016
Carlsbad, California Project No. 107544010
107544010 L Romeria.doc 2
conditions that were yielding. Due to the yielding conditions, the contractor stabilized the soil prior
to placing the embankment fills. At the location of the proposed maintenance road, the contractor
excavated and removed approximately 18 inches of the existing organic material, then replaced it
with a combination of 3-inch-minus rock, geogrid, and aggregate base materials. Subsequent to
stabilization, the fill was moisture conditioned and placed over the aggregate base materials. Rock
was placed using the excavator bucket. For the drainage channel, our representative observed the
placement 3-inch rock and geogrid for the subgrade associated with the drainage channel. Once the
embankment and drainage channel were constructed, our field technician observed and tested the
aggregate base materials and geogrid used for the maintenance road.
LABORATORY AND FIELD TESTING
Laboratory testing was performed on the soil and aggregate base materials used by the contractor
during the earthwork operations. Testing of the fill and aggregate base materials included an
evaluation of the modified proctor density/optimum moisture content relationship. Testing was
performed in general accordance with the ASTM International (ASTM) Test Method D 1557.
The results of the modified proctor density tests are presented in Table 1.
Our field representative was generally on-site on an on-call basis to observe and test the earth-
work operations. In-place density and moisture content testing was performed by our field
representative in general accordance with ASTM D 6938 (Nuclear Gauge Method). During the
earthwork operations, when a field density test was performed that resulted in less than the speci-
fied allowable relative compaction, the area was generally reworked and a retest was taken. The
specified relative compaction for embankment fill and initial layer of aggregate base materials
was 90 percent. The specified relative compaction for the secondary and tertiary layers of aggre-
gate base material was 95 percent. A summary of our field density test results are presented in
Attachment A and the approximate locations of the tests are indicated on Figure 2.
Romeria Drainage Improvements (66041) April 12, 2016
Carlsbad, California Project No. 107544010
107544010 L Romeria.doc 1 of 1
Table 1 – Modified Proctor Density Test Result
Soil
Type No. Description
Laboratory
Dry Density
(pcf)
Optimum
Moisture
Content
(%)
1 Clayey SAND (Import) 123.0 10.5
2 Recycled Aggregate Base (Import) 121.5 11.0
Note:
pcf – pounds per cubic foot.
Romeria Drainage Improvements (66041) April 12, 2016
Carlsbad, California Project No. 107544010
107544010 L Romeria.doc
ATTACHMENT A
SUMMARY OF FIELD DENSITY TESTS
Tested material does does NOT meet the requirements of the approved project documents.
The material was was NOT sampled and tested as required by the approved project documents.
5710 Ruffin Road, San Diego, CA 92123 Test Type:Aggregate Base
Finer Fraction (%)
5
9
6
7
SEE FIGURE 2
SEE FIGURE 2
99.0
SEE FIGURE 2
SEE FIGURE 2
SEE FIGURE 2
Test Date
2/18/16
2/22/16
2/22/16
2/18/16
Test
No.
1
2
3
99.0
WET DENSITY & ROCK CONTENTTare (lbs)
Sand in Cone (lbs) / (MC)
Soil + Rock + Tare (lbs)
Coarse Fraction (%)
4
649
NG
2180
604
1005
149
PASS FAILPASS PASS
Retest on (if applicable)
129
Pass/Fail PASS
Specified Relative Compaction (%)
Coarse/Finer Fraction in Max (%)
Optimum Moisture (%)
PASS PASS PASS PASS
Wet Density (pcf)
604604650
1793
692
Project Name:ROMERIA DRAINAGE IMPROVEMENTS Project No:107544010
784
AB
2043
10
NG
1892 2180 2180
9
SEE FIGURE 2
SEE FIGURE 2
SUMMARY OF FIELD DENSITY TESTS
2/29/16
Permit No.:
Project Street Address:
Jurisdiction:CITY OF CARLSBAD Plan File No.:
ROMERIA ST & LA COSTA AVE, CARLSBAD, CA 92008
66041
Laboratory Maximum Density (pcf)
99.0
2071
650
8
SEE FIGURE 2
1888
23
10
Dry Density (pcf)
Percent Moisture
127.1 130.4
162 197
2109 2116
NG
690
1888
NG
690
6
AB AB AB
11431878 731 1189
692
5
210 153 126 108
NG
1892
NGNG
120
125.4 125.6 124.4129.4131.4 126.1 123.7
7.7 7.8 8.4 10.414.0 9.7
114.9
9.7
2
95 95
121.5 121.5121.5 121.5
11.0
22
95
22
95
95 95
11.0
93
11.0 11.0 11.0
11
11.0 11.0
10.6 12.8
121.5
Sand + Bottle After (lbs) / (MS)
10.3
Coarse Fraction (lbs)
126.9
100.0
100.0
100.0
AB2/23/16
2/23/16
2/29/16 100.0
98.0
AB
AB
Test No.
391
Sand + Bottle Before (lbs) / (DS)
3/1/16
1
2/29/16
STANDARD& TEST COUNTS155
Sand in Cone + Hole (lbs) / (DC)
2071
MOISTURE
95
121.5
115.0
Corrected Maximum Density (pcf)
90
95
PASS
Relative Compaction (%)TEST RESULTS2
121.5
Soil Type Number
95
96
22
Initials Test Location
SEE FIGURE 2
SEE FIGURE 2
Elev. or
Depth (ft)
98.0
98.0
LFV
90
11.0
Test
Of
Block
No.
AB
AB
AB
AB
BHJ
LFV
BHJ
LFV
BTM
BHJ
BTM
BTM
BHJ
NG
359
AB
AB
AB
NG
Test Of AB AB AB
Test Type (SC/SC(SR) = Sand Cone, NG = Nuclear Gauge)
AB AB AB
NG
95
114.9
9595
121.5
11.0
95
115.6
121.5 121.5
114.9 115.3
96
11.0
95
2
95
2
116.3 115.9 117.2 113.4
NOTE: Tests results shown bold italicized have been corrected per ASTM D 4718 Section 4.2 for oversize rock content.107544010_FDT_TEST OF AB #1.xls Field Density Test Sheet 2013 v 3.0
Tested material does does NOT meet the requirements of the approved project documents.
The material was was NOT sampled and tested as required by the approved project documents.
NOTE: Tests results shown bold italicized have been corrected per ASTM D 4718 Section 4.2 for oversize rock content.
115.6 116.3115.0
121.5121.5
95
121.5
96
NG
1026
Test Of AB AB AB
LFV
BHJ
BHJ
Test
Of
Block
No.
AB
AB
AB
AB
LFV
95
11.0
Test Location
SEE FIGURE 2
SEE FIGURE 2
Elev. or
Depth (ft)
100.0
99.0
95 95
115.2
95
TEST RESULTS2
121.5
Soil Type Number
95
95
MOISTURE
95
121.5
115.0
11
STANDARD& TEST COUNTSTest Type (SC/SC(SR) = Sand Cone, NG = Nuclear Gauge)NG
174
Sand in Cone + Hole (lbs) / (DC)
2043
Test No.
11.6
Coarse Fraction (lbs)
128.3
104.0AB3/10/16 BHJ
1037
Sand + Bottle Before (lbs) / (DS)
Sand + Bottle After (lbs) / (MS)
11.0 11.0
12.0 8.5
PASS
95
2222
11.0 11.0
12.6 10.2
130.9 126.9
157194
AB
1897
1849 2060
NG
688
1897
NG
688
180 136
129.5 124.8
Percent Moisture
Laboratory Maximum Density (pcf)
2043
649
18
1897
12 13
20
688
Permit No.:
Project Street Address:
Jurisdiction:CITY OF CARLSBAD Plan File No.:
ROMERIA ST & LA COSTA AVE, CARLSBAD, CA 92008
66041
SUMMARY OF FIELD DENSITY TESTS
5710 Ruffin Road, San Diego, CA 92123 Test Type:
1916
Project Name:ROMERIA DRAINAGE IMPROVEMENTS Project No:107544010
103.014
Test Date
3/1/16
100.0
Initials
3/1/16
Test
No.
11
12
649
SEE FIGURE 2
SEE FIGURE 2
20
Coarse/Finer Fraction in Max (%)
Wet Density (pcf)
Corrected Maximum Density (pcf)
Relative Compaction (%)
Dry Density (pcf)
PASS PASSPASSPass/Fail
17 1814
AB
2330
15
NG
Soil + Rock + Tare (lbs)
Retest on (if applicable)
Optimum Moisture (%)
PASS
Specified Relative Compaction (%)
Coarse Fraction (%)
13
WET DENSITY & ROCK CONTENTTare (lbs)
Sand in Cone (lbs) / (MC)
15
19
16
17
3/10/16
3/10/16
SEE FIGURE 2
Finer Fraction (%)
Aggregate Base
107544010_FDT_TEST OF AB #1.xls Field Density Test Sheet 2013 v 2.9
Tested material does does NOT meet the requirements of the approved project documents.
The material was was NOT sampled and tested as required by the approved project documents.
5710 Ruffin Road, San Diego, California 92123 Test Type:Fill
Finer Fraction (%)
5
9
6
7
SEE FIGURE 2
SEE FIGURE 2
99.5
SEE FIGURE 2
SEE FIGURE 2
SEE FIGURE 2
Test Date
11/20/15
11/23/15
11/23/15
11/20/15
Test
No.
1
2
3
101.0
WET DENSITY & ROCK CONTENTTare (lbs)
Sand in Cone (lbs) / (MC)
Soil + Rock + Tare (lbs)
Coarse Fraction (%)
4
592
NG
1961
587
1249
169
PASS PASSPASS PASS
Retest on (if applicable)
120
Pass/Fail PASS
Specified Relative Compaction (%)
Coarse/Finer Fraction in Max (%)
Optimum Moisture (%)
PASS PASS PASS PASS
Wet Density (pcf)
587587592
1309
587
Project Name:ROMERIA DRAINAGE IMPROVEMENTS Project No:107544010
784
CF
1970
10
NG
1961 1961 1961
9
SEE FIGURE 2
SEE FIGURE 2
SUMMARY OF FIELD DENSITY TESTS
11/24/15
Permit No.:
Project Street Address:
Jurisdiction:CITY OF CARLSBAD Plan File No.:
ROMERIA ST & LA COSTA AVE, CARLSBAD, CA 92008
66041
Laboratory Maximum Density (pcf)
101.0
1963
592
8
SEE FIGURE 2
1961
23
10
Dry Density (pcf)
Percent Moisture
132.3 122.0
156 151
1381 1353
NG
587
1961
NG
587
6
CF CF CF
15991232 1329 1229
587
5
148 152 141 124
NG
1961
NGNG
125
120.3 124.8 129.7123.6125.0 126.4 125.7
10.1 8.6 8.8 8.110.8 11.2
114.2
11.7
1
93 93
123.0 123.0123.0 123.0
10.5
11
90
11
92
90 90
10.5
94
10.5 10.5 10.510.5 10.5
11.1 11.2
123.0
Sand + Bottle After (lbs) / (MS)
9.5
Coarse Fraction (lbs)
127.0
102.0
103.0
96.5
CF11/23/15
11/23/15
11/24/15 101.5
103.0
CF
CF
Test No.
1092
Sand + Bottle Before (lbs) / (DS)
12/1/15
1
11/24/15
STANDARD& TEST COUNTS139
Sand in Cone + Hole (lbs) / (DC)
1963
MOISTURE
94
123.0
116.0
Corrected Maximum Density (pcf)
90
97
FAIL
4
Relative Compaction (%)TEST RESULTS1
123.0
Soil Type Number
90
90
11
Initials Test Location
SEE FIGURE 2
SEE FIGURE 2
Elev. or
Depth (ft)
101.0
98.0
JVC
90
10.5
Test
Of
Block
No.
CF
CF
CF
CF
JVC
JVC
JVC
JVC
JVC
JVC
JVC
JVC
JVC
NG
991
CF
CF
CF
NG
Test Of CF CF CF
Test Type (SC/SC(SR) = Sand Cone, NG = Nuclear Gauge)
CF CF CF
NG
90
113.7
9289
123.0
10.5
90
109.7
123.0 123.0
119.1 112.8
93
10.5
90
1
90
1
110.8 114.7 114.3 116.1
NOTE: Tests results shown bold italicized have been corrected per ASTM D 4718 Section 4.2 for oversize rock content.107544010_FDT_TEST OF CF_1.xls Field Density Test Sheet 2013 v 2.9
Tested material does does NOT meet the requirements of the approved project documents.
The material was was NOT sampled and tested as required by the approved project documents.
111.3
NOTE: Tests results shown bold italicized have been corrected per ASTM D 4718 Section 4.2 for oversize rock content.
114.6 114.0113.2
123.0123.0
92
123.0
93
123.0 123.0
96
123.0 123.0
113.6 115.0
NG
1657
NG
CF
CF
Test Of CF CF CF
JVC
JVC
JVC
JVC
JVC
JVC
JVC
JVC
Test
Of
Block
No.
CF
CF
CF
CF
JVC
90
10.5
Test Location
SEE FIGURE 2
SEE FIGURE 2
Elev. or
Depth (ft)
97.0
103.0
90
92
11
123.0
90 90
115.6
94
TEST RESULTS1
123.0
Soil Type Number
90
93
MOISTURE
91
123.0
112.5
11
12/8/15
STANDARD& TEST COUNTSTest Type (SC/SC(SR) = Sand Cone, NG = Nuclear Gauge)NG
162
Sand in Cone + Hole (lbs) / (DC)
1970
12/8/15 CF
Test No.
11.4
Coarse Fraction (lbs)
125.3
99.0
100.0
97.0
CF12/2/15
12/2/15
12/2/15 CF
JVC
1754
Sand + Bottle Before (lbs) / (DS)
Sand + Bottle After (lbs) / (MS)
10.5 10.5
11.6 11.4
93 94
10.5
PASS
10.5
90
10.5
9090
1
90
1111
90 90
11
10.5 10.5 10.5 10.5
114.2
11.310.9
118.0
10.6 10.9 10.510.1 9.6
125.5 126.7 126.6 123.9130.4125.6 127.5
159153135 148 144
1970
140
17311759 1798 1689
CF CF CF
NG
1970
CF
1728 1797
NG
592
1970
NG
592
167 162
127.9 126.1
Percent Moisture
Laboratory Maximum Density (pcf)
1970
592
18
SEE FIGURE 2
1970
12 13
20
592
CF
12/8/15
Permit No.:
Project Street Address:
Jurisdiction:CITY OF CARLSBAD Plan File No.:
ROMERIA ST & LA COSTA AVE, CARLSBAD, CA 92008
66041
SUMMARY OF FIELD DENSITY TESTS
5710 Ruffin Road, San Diego, California 92123 Test Type:
1916
CF CF
Project Name:ROMERIA DRAINAGE IMPROVEMENTS Project No:107544010
98.0
96.0
14
Test Date
12/1/15
101.5
Initials
12/1/15
Test
No.
11
12
592
SEE FIGURE 2
SEE FIGURE 2
1974
20
NG
1970
NG
Coarse/Finer Fraction in Max (%)
Wet Density (pcf)
Corrected Maximum Density (pcf)
Relative Compaction (%)
Dry Density (pcf)
PASS PASS PASS PASS PASS PASSPASS PASSPass/Fail
17 1814
CF
1750
15
NG
592
1974
NG
1974
594
1665
Soil + Rock + Tare (lbs)
Retest on (if applicable)
149
Optimum Moisture (%)
PASS
Specified Relative Compaction (%)
Coarse Fraction (%)
594594592
13
WET DENSITY & ROCK CONTENTTare (lbs)
Sand in Cone (lbs) / (MC)
15
19
16
17
12/1/15
12/2/15
SEE FIGURE 2
SEE FIGURE 2
98.0
SEE FIGURE 2
SEE FIGURE 2
SEE FIGURE 2
101.0
Finer Fraction (%)
Fill
107544010_FDT_TEST OF CF_1.xls Field Density Test Sheet 2013 v 2.9
Tested material does does NOT meet the requirements of the approved project documents.
The material was was NOT sampled and tested as required by the approved project documents.
Fill
29
26
27
SEE FIGURE 2
SEE FIGURE 2
100.0
SEE FIGURE 2
SEE FIGURE 2
SEE FIGURE 2
12/10/15
12/9/15
Test
No.
21
22
23
25
WET DENSITY & ROCK CONTENTTare (lbs)
Sand in Cone (lbs) / (MC)
Soil + Rock + Tare (lbs)
Coarse Fraction (%)
Finer Fraction (%)
NG
1974
594
1141
CF
1771
25
NG
594
CF CF
594
PASSFAIL PASS
Retest on (if applicable)
151
Pass/Fail PASS
Specified Relative Compaction (%)
Coarse/Finer Fraction in Max (%)
Optimum Moisture (%)
PASS PASS PASS PASS
Wet Density (pcf)
594594594
Project Name:ROMERIA DRAINAGE IMPROVEMENTS Project No:107544010
98.024
Test Date
12/9/15
12/9/15
12/9/15
2926
CF CF
NG
SEE FIGURE 2
SEE FIGURE 2
27 2824
SUMMARY OF FIELD DENSITY TESTS
5710 Ruffin Road, San Diego, California 92123 Test Type:
12/10/15
Permit No.:
Project Street Address:
Jurisdiction:CITY OF CARLSBAD Plan File No.:
ROMERIA ST & LA COSTA AVE, CARLSBAD, CA 92008
66041
98.0
1974
594
28
1974
22 23
30
30
Percent Moisture
Laboratory Maximum Density (pcf)
126.2 118.9
164 162
2060 1770
NG
594
1974
NG
594
CF
NG
1215 1087 1125
1974 1974 1974
151 153 152 152
1974
145
129.2 127.6 126.8126.4 125.0 125.3
11.2 11.8 11.5 11.4 10.5 11.1
11
90 90
111
10.5
1
90
10.5
90
10.5 10.5 10.5
91 94
90
165
10.5 10.5
13.0 12.713.1
Coarse Fraction (lbs)
122.0
12/10/15 100.0
101.0
Sand + Bottle After (lbs) / (MS)
Test No.
12/10/15
STANDARD& TEST COUNTSSand in Cone + Hole (lbs) / (DC)1946
Sand + Bottle Before (lbs) / (DS)
100.0
99.0
CF12/9/15
21
1974
CF
MOISTURE
88
123.0
107.9
91
FAIL
24
90
86
TEST RESULTS1
123.0
22
90
Dry Density (pcf)
Relative Compaction (%)
123.0 123.0
Corrected Maximum Density (pcf)
Soil Type Number
90
94
11
Initials Test Location
SEE FIGURE 2
SEE FIGURE 2
Elev. or
Depth (ft)
96.0
96.0
JVC
90
10.5
Test
Of
Block
No.
CF
CF
CF
CF
JVC
JVC
JVC
JVC
JVC
JVC
JVC
CF
CF
CF
JVC
Test Of CF CF CF
Test Type (SC/SC(SR) = Sand Cone, NG = Nuclear Gauge)NG NG
1776
NG
111.8
91
112.4 116.0
123.0
92
123.0 123.0
10.5
115.5 114.1111.7 113.7105.5
123.0123.0
93
NOTE: Tests results shown bold italicized have been corrected per ASTM D 4718 Section 4.2 for oversize rock content.107544010_FDT_TEST OF CF_1.xls Field Density Test Sheet 2013 v 2.9
Tested material does does NOT meet the requirements of the approved project documents.
The material was was NOT sampled and tested as required by the approved project documents.
NOTE: Tests results shown bold italicized have been corrected per ASTM D 4718 Section 4.2 for oversize rock content.
Test Of ST
Test Type (SC/SC(SR) = Sand Cone, NG = Nuclear Gauge)NG
Test
Of
Block
No.
ST
95
10.5
Initials Test Location
SEE FIGURE 2
Elev. or
Depth (ft)
98.0BTM
Soil Type Number
Relative Compaction (%)TEST RESULTS1
MOISTURE
98
123.0
120.0
Corrected Maximum Density (pcf)
1
STANDARD& TEST COUNTS163
Sand in Cone + Hole (lbs) / (DC)
2180
Test No.
565
Sand + Bottle Before (lbs) / (DS)
Sand + Bottle After (lbs) / (MS)
11.3
Coarse Fraction (lbs)
133.6
65
Dry Density (pcf)
Percent Moisture
Laboratory Maximum Density (pcf)
604
8
23
10
Permit No.:
Project Street Address:
Jurisdiction:CITY OF CARLSBAD Plan File No.:
ROMERIA ST & LA COSTA AVE, CARLSBAD, CA 92008
66041
SUMMARY OF FIELD DENSITY TESTS
109
Project Name:ROMERIA DRAINAGE IMPROVEMENTS Project No:107544010
784
Wet Density (pcf)
Pass/Fail
Specified Relative Compaction (%)
Coarse/Finer Fraction in Max (%)
Optimum Moisture (%)
PASS
Retest on (if applicable)WET DENSITY & ROCK CONTENTTare (lbs)
Sand in Cone (lbs) / (MC)
Soil + Rock + Tare (lbs)
Coarse Fraction (%)
4
Test Date
2/29/16
Test
No.
1
2
3
5
9
6
7
Finer Fraction (%)
5710 Ruffin Road, San Diego, CA 92123 Test Type:Subgrade
107544010_FDT_TEST OF SG _1.xls Field Density Test Sheet 2013 v 3.0