HomeMy WebLinkAbout1640 Riverside Ave - Special Inspections/Engineering - 11/19/20154396 GREENFIELD DRIVE
WINDSOR, COLORADO 80550
(970) 545-3908 FAX (970) 663-0282
November 19, 2015
Evergreen Industrial, LTD.
206 East 4th Street, Suite 210
Loveland, Colorado 80537
Attn: Mr. Steve Brinkhuis (sbrinkhuis@evergreen-ind.com)
Re: Construction Observation and Materials Testing Report – Submittal No. 1
Riverside Storage
1640 Riverside Avenue
Fort Collins, Colorado
EEC Project No. 1154149
Mr. Brinkhuis:
As requested, during the period of October 12 through November 7, 2015, Earth Engineering
Consultants, LLC (EEC) personnel provided construction observation and testing services for the
proposed Riverside Storage project located at 1640 Riverside Avenue in Fort Collins, Colorado.
Those services were provided on a part-time/on-call basis and included observations, field
density and laboratory testing of building subgrade material as described herein. The results of
the observation and testing services completed by EEC personnel during the referenced period
are included with this report.
Field Density and Laboratory Testing Services
During the referenced period, EEC personnel visited the site and obtained two (2) representative
samples of the site subgrade material, (EEC Sample IDs “A” and “B”). The samples were
returned to our office for further laboratory testing, evaluation and classification. Laboratory
testing performed on the samples included washed sieve analysis (ASTM C117 and C136),
Atterberg limits (ASTM D4398) and standard Proctor (ASTM Specification D698) tests. Results
of the laboratory testing completed by EEC personnel during the referenced period are shown on
the attached summary sheets. The results of the completed Proctor test results were used to
evaluate the relative compaction of placed/prepared materials in the field.
Proctor Designation A
Maximum Dry Density (pcf) 117.5
Optimum Moisture Content (%) 12.0%
Required Moisture Variance N/A
Required Percent Compaction 95%
Laboratory Method ASTM D-698
Compliance with
Project Specs
Elev. / Lift
No.
Material
(Proctor)
Percent
Moisture
Dry
Density
Moisture
(Pass /
Fail)
%Comp.
(Pass /
Fail)
1 10/26 1 Building Subgrade - See Diagram FSG A 12.9% 114.1 0.9% 97% N/A Pass
2 10/26 2 Building Subgrade - See Diagram FSG A 12.2% 112.2 0.2% 95% N/A Pass
3 10/26 3 Building Subgrade - See Diagram FSG A 12.0% 111.6 0.0% 95% N/A Pass
4 10/26 4 Building Subgrade - See Diagram FSG A 14.6% 110.1 2.6% 94% N/A *FAIL*
5 10/26 5 Building Subgrade - See Diagram FSG A 11.1% 120.7 -0.9% 103% N/A Pass
6 10/26 6 Building Subgrade - See Diagram FSG A 11.7% 113.9 -0.3% 97% N/A Pass
7 10/26 7 Building Subgrade - See Diagram FSG A 14.8% 108.0 2.8% 92% N/A *FAIL*
8 10/26 8 Building Subgrade - See Diagram FSG A 12.3% 110.1 0.3% 94% N/A *FAIL*
9 10/26 9 Building Subgrade - See Diagram FSG A 9.5% 120.1 -2.5% 102% N/A Pass
10 10/26 10 Building Subgrade - See Diagram FSG A 13.7% 110.3 1.7% 94% N/A *FAIL*
11 10/26 11 Building Subgrade - See Diagram FSG A 11.5% 109.3 -0.5% 93% N/A *FAIL*
12 10/26 12 Building Subgrade - See Diagram FSG A 13.2% 111.7 1.2% 95% N/A Pass
13 11/3 1 Building Subgrade - See Diagram FSG A 9.2% 117.2 -2.8% 100% N/A Pass
14 11/3 2 Building Subgrade - See Diagram FSG A 10.5% 120.5 -1.5% 103% N/A Pass
15 11/3 3 Building Subgrade - See Diagram FSG A 9.5% 118.4 -2.5% 101% N/A Pass
16 11/3 4 Building Subgrade - See Diagram FSG A 10.0% 111.8 -2.0% 95% N/A Pass
17 11/3 5 Building Subgrade - See Diagram FSG A 8.5% 111.9 -3.5% 95% N/A Pass
18 11/3 6 Building Subgrade - See Diagram FSG A 8.3% 111.6 -3.7% 95% N/A Pass
19 11/3 7 Building Subgrade - See Diagram FSG A 8.4% 111.8 -3.6% 95% N/A Pass
20 11/3 8 Building Subgrade - See Diagram FSG A 8.0% 111.6 -4.0% 95% N/A Pass
21 11/3 9 Retest Consecutive Test #4 FSG A 13.0% 115.8 1.0% 99% N/A Pass
22 11/3 10 Retest Consecutive Test #7 FSG A 10.5% 119.8 -1.5% 102% N/A Pass
23 11/3 11 Retest Consecutive Test #8 FSG A 10.1% 112.0 -1.9% 95% N/A Pass
24 11/3 12 Retest Consecutive Test #11 FSG A 10.1% 113.0 -1.9% 96% N/A Pass
25 11/3 13 Retest Consecutive Test #10 FSG A 9.7% 119.3 -2.3% 102% N/A Pass
EARTH ENGINEERING CONSULTANTS, LLC
Approximate Test Location / Notes
Daily Test
Number
Date
Consecutive
Test Number
Moisture
Variance
Percent
Compaction
Field Test Results
Project Name: Riverside Storage - 1640 Riverside Avenue
11/3-5
11/3-6 11/3-8
11/3-7
11/3-1
11/3-2
11/3-3
11/3-4
11/3-12
11/3-13
11/3-9
11/3-10
11/3-11
10/26-9
10/26-12
10/26-11
10/26-10
10/26-8
10/26-7
10/26-6
10/26-5
10/26-3 10/26-4
10/26-2
10/26-1
Field Density Test Location Diagram
Riverside Storage - Fort Collins, Colorado
EEC Project #: 1154149
Fill, Subgrade, & Aggregate Base
EARTH ENGINEERING CONSULTANTS, LLC
0%
10%
20%
30%
Project: Riverside Storage - 1640 Riverside Avenue
Fort Collins, Colorado
Project No: 1154149
Date October 2015
7.2
Retained
3/4"
O 125.0
O-10 126.9
8.0
130.9 5.6
O-20 128.8 6.4
O-30
Proctor Designation
Rock Correction (AASHTO T 224)
Maximum Dry Density (pcf) Optimum Moisture Content
(%)
90
95
100
105
110
115
120
125
130
135
140
145
0 5 10 15 20 25 30 35
Dry Density (Pounds per Cubic Foot)
Percent Moisture
Earth Engineering Consultants, LLC
Summary of Laboratory Classification/ Moisture-Density Relationship
Curves for 100% Saturation
For Specific Gravity Equal to:
2.80
2.70
2.60
Material Designation:
Sample Location:
Description:
A
Silty/Clayey Sand (SM/SC)
Atterberg Limits (ASTM D-4318)
Liquid Limit:
Plastic Limit:
Plasticity Index:
23
9
14
Passing No. 200 Sieve (AASHTO T 11/ASTM C 117): 43.8%
Standard Proctor (ASTM D-698)
Maximum Dry Density:
Optimum Moisture Content:
117.5 pcf
Material Designation: A
Sample Location:
Material Description: Silty/Clayey Sand (SM/SC)
Project: Riverside Storage - 1640 Riverside Avenue
Fort Collins, Colorado
Project No:
Date October 2015
Earth Engineering Consultants, LLC
Summary of Laboratory Gradation Test
Sieve Size Percent Passing
No. 4
1154149
No. 40
No. 10
No. 200
100%
43.8%
97%
87%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01 0.001
Percent Finer by Weight
Grain Size in Millimeters
0%
10%
20%
30%
Project: Riverside Storage - 1640 Riverside Avenue
Fort Collins, Colorado
Project No: 1154149
Date October 2015
Proctor Designation
Rock Correction (AASHTO T 224)
Maximum Dry Density (pcf) Optimum Moisture Content
(%)
7.2
Retained
3/4"
O 125.0
O-10 126.9
8.0
130.9 5.6
O-20 128.8 6.4
O-30
90
95
100
105
110
115
120
125
130
135
140
145
0 5 10 15 20 25 30 35
Dry Density (Pounds per Cubic Foot)
Percent Moisture
Earth Engineering Consultants, LLC
Summary of Laboratory Classification/ Moisture-Density Relationship
Curves for 100% Saturation
For Specific Gravity Equal to:
2.80
2.70
2.60
Material Designation:
Sample Location:
Description:
B
Silty/Clayey Sand (SM/SC)
Atterberg Limits (ASTM D-4318)
Liquid Limit:
Plastic Limit:
Plasticity Index:
23
7
16
Passing No. 200 Sieve (AASHTO T 11/ASTM C 117): 47.2%
Standard Proctor (ASTM D-698)
Maximum Dry Density:
Optimum Moisture Content:
118.5 pcf
Material Designation: B
Sample Location:
Material Description: Silty/Clayey Sand (SM/SC)
Project: Riverside Storage - 1640 Riverside Avenue
Fort Collins, Colorado
Project No:
Date October 2015
100%
47.2%
97%
90%
1154149
No. 40
No. 10
No. 200
Sieve Size Percent Passing
No. 4
Earth Engineering Consultants, LLC
Summary of Laboratory Gradation Test
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
100 10 1 0.1 0.01 0.001
Percent Finer by Weight
Grain Size in Millimeters
12.0%
12.0%
SUMMARY OF FIELD DENSITY TESTS
Location: Fort Collins, Colorado
Project No:
Date:
1154149
November 2015