HomeMy WebLinkAboutCT 02-25; NORTH PARK AT LA COSTA; FINAL COMPACTION REPORT FOR BACKFILL OF WATER LINE TRENCH; 2004-08-10- AXIMUPSITY WEN F A47 1,
SQiLTYPE. . ;,.. (PERCENT
A -OiiveGren, SANDY CLAY .112.0 .: 17.5
B - Light Brown, SANDY CLAY 1160 . 14.0
C - Gray Brown, SILTY SAND (import) 125.0 8.5
JOINT UTILITY TRENCH BACKFILL
Select native onsite soils were used as backfill for the joint trench The required
compaction was achieved by mechanical means The minimum compaction required was
90 percent of the laboratory standard (ASTM D-1 557)
/ 1
FIELD TESTING
1 Field density tests were performed using nuclear densometer ASTM Test Methods
.' D-2922 and D-3017 and and-cone ASTM Test Method ASTM .D-1556 The test
results are presented in the attached Table 1
2 Field density tests were taken at periodic intervals and random locations to check
the compactive efforts provided by the contractor Where test results indicated a
less than the required minimum compaction, the contractor was notified and the
area was reworked until the required minimum relative compaction was achieved
for each respective area
3 Visual classification of the soil in the field was the basis for determining the
maximum density value to use for a given density test
4 Backfill observation and testing was performed on an on-call basis, as solely
determined by the client/contractor.
LABORATORY TESTING
Maximum DensutvTestinci
The laboratory maximum dry density and optimum moisture content for the major soil
types within this construction phase were determined according to test method
ASTM D-1557 The following table presents the results
Table 1
FIELD DENSITY TEST RESULTS-
Its TI UTILITY DATE TEST LOCATION ELEV MOISTURE DRY REL TEST SOIL
NO. I TYPE OR CONTENT DENSITY COMP METHOD TYPE
_[_ DEPTH
SEWER
-. S 4/21/04 10+85 Corte Tradicion 283.0 - -14.3 105.8 91.2 ND B
2 S 4/21/04 10+25 Corte Tradicion 285.0 15.6 105.1 90.6 ND B
3 S 4/21/04 10 + 15 Corte Trad icion 287.0 15.4 105.6 91.0 ND B
4 S 5/26/04 Lot 5 Lateral 290.0 179 101.9 90.9 ND A
5 S 5/26/04 Lot 7 Lateral 291.0 _17.6 101.6 90.7 SC A
6 1 S 5/26/041 Lot Lateral 288.0 180 102.0 91.0 ND A
7 S 5/26/04 Lot 11 Lateral 289.0 _17.6 101.4 90.5 SC A
.8 S 5/26/04 12+20 Est. 287.0 18.2 101.2 90.3 SC A
9 S 5/26/04 11+80Est. 288.0 18.1 101.8 90.8 ND A
10 S 5/26/04 11 -4-25 Est. 286.0 _18.4 101.7 90.8 Sc A
11 S 5/27/04 10+18 287.0 17.9 101.9 90.9 SC A
12 S 5/27/04 10+40 287.0 _18.3 102.1 91.1 Sc A.
13 S 5/27/04 10+80 287.0 18.5 102.3 91.3 ND A
14 S 5/27/04 11+00 287.0 _18.2 102.5 91.5 ND -A
15 S 5/28/04 11 +00 Main Entrance 287.0 17.9 101.9 90.9 ND A
16 S 5/28/04 10+60 Main Entrance 285.0 182 102.4 91.4 SC A
17 S 5/28/04 10+20 Main Entrance 285.0 18.4 1 102.6 91.6 ND A
18 5 5/28/04 10+00 Around Main Hole 287.0 18.0 102.2 91.2 SC . A
_WATER
1 W 6/8/04 10+86 Corte Tradicion 284.0 8.0 114.0 .91.2 ND C
2 W 6/8/04 10+35 Corte Tradicion 286.0 8.1 113.3 90.6 ND C
3 W 6/9/04 12+45 Corte Tradicion 289.0 8.2 114.8 91.8 ND C
4 W 6/9/04 11+oo Corte lradicion 286.0 8.8 115.1 92.0 ND C
5 W 6/10/04 10+75 Corte Tradicion -1.0 14.8 107.2 92.4 ND B
6 W 6/10/04 1 10+ 15 Corte Tradicion -1.0 16.2 106.1 91.4 ND B
7 W 7/7/04 Lot Lateral -1.0 15.6 106.6 91.8 SC . B
8 W 7/7/04 Lot Lateral -1.0 14.4 107.3 92.5 ND B
9 W 7/9/04 Lot Lateral -3.0 15.6 106.2 91.5 ND B
10 W 7/9/04 Lot 12 Lateral -1.0 16.2 105.3 90.7 ND B
OINTTRENCHI& -
1 JT 7/22/04 7+90W. Side Levante St -2.0 16.1 104.9 90.4 ND B
2 JT 7/22/04 7+90 E. Side Levãnte St -1.0 15.8 .105.2 90.6 ND
3 JT 7/22/04 7+90 E. Middle Levante St SG 14.6 110.8 95.5 ND B
4 JT 7/23/04 Lot 7 -1.0 16.2 104.9 90.4 ND B
5 JT 7/23/04 Lot -1.0 14.8 106.3 91.6 ND B
6 JT 7/23/04 Lot -1.0 15.9 105.1 90.6 ND B
7 JT 7/23/041 N. Side of Crossing -1.0 15.6 105.4 90.8 ND B
8 JT 7/26/04 Lot -1.0 14.6 106.1 91.4 ND B
9 JT 7/26/04 Lot 1 -1.0 14.3 107.0 92.2 SC B
10 JT 7/26/04 S. Side @ Crossing -1.0 15.8 105.4 90.8 ND B
Legend:
JT = Joint Trench
ND = Nuclear Densometer
S = Sewer
SC= Sand Cone
W=Water
Hallmark Communities W.O. 3975-0-SC
• Traditions at La Costa, Carlsbad • • August 2004
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