Trancas_Street_Pavement_Report.pdf
PDF 2 MB Posted
- Attached to
- Trancas Street Rehabilitation
- Solicitation number
- ST26PW10
- Issued by
- Napa County, California
About this file
This document is a pavement rehabilitation technical investigation for the City of Napa's Trancas Street project, conducted by NCE (Nichols Consulting Engineers) in March and April 2025. The investigation involves comprehensive materials testing and analysis of pavement cores taken from multiple locations along Trancas Street, examining sections in both eastbound and westbound lanes. The study includes detailed geotechnical assessments such as core photography, dynamic cone penetrometer (DCP) testing, falling weight deflectometer (FWD) testing, and laboratory analyses of soil samples from different depths and locations.
The laboratory testing revealed critical materials characteristics, including soil classification, moisture content, plasticity index, and R-value. Soil samples from locations TR-3 and TR-8 were classified as CL (inorganic clays of low to moderate plasticity), with liquid limits ranging from 29-35 and plasticity indices of 12-17. Moisture content varied between 12.5-16.8%, and laboratory tests indicated relatively low to moderate soil strength characteristics. The DCP and FWD testing provided insights into pavement structural conditions, showing variations in deflection and penetration resistance across different sections of Trancas Street, which will likely inform the rehabilitation design and intervention strategy.
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Other files
| File | Type | Posted |
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| TechnicalSpecifications_ST26PW10.pdf | ||
| Warranty_Bond_(1).pdf | ||
| Payment_Bond.pdf | ||
| 4.2_Public_Works_Contract_Documents_(For_Information_only).docx | DOCX document | |
| BidSet_Trancas.pdf | ||
| Performance_Bond.pdf | ||
| Special_Provisions_ST26PW10.pdf | ||
| Trancas_Street_Rehabilitation_(Addendum_#1_Revision).pdf | ||
| Bidder's_Questionnaire.pdf | ||
| Appendix_E_of_the_Title_VI_Assurances.pdf | ||
| IFB_Pricing_Table.xlsx | XLSX spreadsheet |
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City of Napa
Trancas Street Rehabilation
Table 2 - Core Summary
Layer1 Layer2 Layer3 Layer4 Layer5
TR-14 EB 1 2.25 2.25 3.50 5.50 6.75 - 6.75 Present - - - - - -
TR-13 EB 2 2 2.00 4.75 - - - 4.75 14.00 - - - - - -
TR-12 EB 2 2.25 2.25 5.50 - - - 5.50 Present - - - - - -
TR-11 EB 1 1.5 1.50 2.75 4.75 - - 4.75 Present - - - - - -
TR-10 EB 2 1.25 1.25 4.50 6.00 - - 6.00 12.00 - - - - - -
TR-9 EB 1 3.75 3.75 5.00 7.00 15.75 - 15.75 Not Present - - - - - -
TR-8 BULK EB 2 1.75 1.75 4.00 5.50 - - 5.50 12.25 CL 5 12.5 12 29 32.25
TRANCAS ST (WB) CITY LIMITY BIG RANCH RD 1 TR-6 WB 1 No Fabric 1.00 2.25 7.50 - - 7.50 Present - - - - - -
TRANCAS ST (WB) BIG RANCH RD VILLA LN 1 TR-4 WB 1 2.25 2.25 4.00 6.50 - - 6.50 Present - - - - - -
TR-3 BULK WB 2 2.25 2.25 3.25 5.25 - - 5.25 12.50 CL 5 16.8 17 35 34.75
TR-2 WB 1 2 2.00 3.75 5.00 7.50 - 7.50 Present - - - - - -
TR-1 WB 2 2 2.00 3.75 5.50 7.75 - 7.75 Present - - - - - -
Core ID Depth Moisture
Sample Taken (in.)
Subgrade Layer
Depth from Surface to the bottom of layers (in.)
Total
Thicknes s (in.)
Presence /
Thickness
From Core
(in.)
(2)
Aggregate
Base (AB)
Types of
Soil R-Value
Moisture
Content
Plasticity
Index
(PI)
(3)
Liquid limit
TRANCAS ST (EB) JEFFERSON ST VILLA LN 3
Fabric Depth (in.)
Asphalt Concrete (AC) or Aggregate Treated Base
(ATB) Layer
Direction Lane No.Road Name Start End No. of
Cores
TRANCAS ST (EB) VILLA LN SOSCAL AVE 2
TRANCAS ST (WB) VILLA LN JEFFERSON ST
TRANCAS ST (EB) SOSCAL AVE CITY LIMITY
Appendix B - Pavement Core Photos
Core Photo Log
Pavement Design Memo April 2025
TR-1 TR-2
TR-3 TR-4
TR-6
TR-8
Core Photo Log
Pavement Design Memo April 2025
TR-9 TR-10
TR-11 TR-12
TR-13 TR-14
Attachment C – Pavement Deflection Testing
Trancas Street Rehabilation Project
FWD Testing Summary
J e ff e rs o n S t
M o n tc la ir A v e
B e a rd
R d
V ill a L n
TR-14
TR-13
TR-12
TR-11
TR-10
0+00 5+00 10+00 15+00 20+00 25+00 30+00
A C
T h ic k n e s s in
D e fl e c ti o n m ils
Project Stationing (ft)
Trancas St EB Lane 1 Station 0+00 to Station 30+00
Cross Street Eastbound Lane 1 Core Information
FWD Testing Summary
S o s c o l A v e
O ld
S o s c o l W a y
C it y L im it
TR-9
TR-8 BULK
30+00 32+00 34+00 36+00 38+00 40+00 42+00 44+00
A C
T h ic k n e s s in
D e fl e c ti o n m ils
Project Stationing (ft)
Trancas St EB Lane 1 Station 30+00 to Station 44+80
Cross Street Eastbound Lane 1 Core Information
FWD Testing Summary
J e ff e rs o n S t
M o n tc la ir
A v e
B e a rd
R d
V ill a L n
TR-14
TR-13
TR-12
TR-11
TR-10
0+00 5+00 10+00 15+00 20+00 25+00 30+00
A C
T h ic k n e s s in
D e fl e c ti o n m ils
Project Stationing (ft)
Trancas St EB Lane 2 Station 0+00 to Station 30+00
Cross Street Eastbound Lane 2 Core Information
FWD Testing Summary
S o s c o l A v e
O ld
S o s c o l W a y
C it y L im it
TR-9
TR-8 BULK
30+00 32+00 34+00 36+00 38+00 40+00 42+00 44+00
A C
T h ic k n e s s in
D e fl e c ti o n m ils
Project Stationing (ft)
Trancas St EB Lane 2 Station 30+00 to Station 44+80
Cross Street Eastbound Lane 2 Core Information
FWD Testing Summary
C it y L im it
O ld
S o s c o l W a y
S o s o c o l A v e
V a lle
V e rd e D r
V ill a L n
TR-6
TR-4
D e fl e c ti o n m ils
Trancas St WB Lane 1
Station 00+00 to Station 29+00
FWD Testing Summary
TR-2 TR-1
D e fl e c ti o n m ils
Trancas St WB Lane 1
Station 29+00 to Station 45+00
FWD Testing Summary
C it y L im it
O ld
S o s c o l W a y
S o s o c o l A v e
V a lle
V e rd e D r
V ill a L n
TR-6
TR-4
TR-3 BULK
0+00 5+00 10+00 15+00 20+00 25+00
A C
T h ic k n e s s in
D e fl e c ti o n m ils
Project Stationing (ft)
Trancas St WB Lane 2 Station 00+00 to Station 29+00
Cross Street Westbound Lane 2 Core Information
FWD Testing Summary
J e ff e rs o n S t
TR-2 TR-1
29+00 31+00 33+00 35+00 37+00 39+00 41+00 43+00 45+00
A C
T h ic k n e s s in
D e fl e c ti o n m ils
Project Stationing (ft)
Trancas St WB Lane 2 Station 29+00 to Station 45+00
Cross Street Westbound Lane 2 Core Information
Attachment D – DCP Analysis
Sheet Number 1 OF 2
Operator
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 195 mm
Location
Reading # of Blows
Scale
Reading
(cm)
Pen.
Between
Readings
(mm)
Pen. Per blow
Hammer
Factor*
DCP Index
(mm/blow) CBR
Depth, inches
0 23.2 7.7
1 5 23.9 7 1.4 1 1.4 200 8.0
2 10 24.7 8 0.8 1 0.8 375 8.3
3 10 25.2 5 0.5 1 0.5 635 8.5
4 10 25.2 0 0 1 0 0 8.5
5 10 25.9 7 0.7 1 0.7 435 8.7
6 10 26 1 0.1 1 0.1 3849 8.8
7 10 26 0 0 1 0 0 8.8
8 10 26.2 2 0.2 1 0.2 1771 8.9
9 10 26.5 3 0.3 1 0.3 1125 9.0
10 10 26.8 3 0.3 1 0.3 1125 9.1
11 10 26.8 0 0 1 0 0 9.1
12 10 27.2 4 0.4 1 0.4 815 9.3
13 10 27.5 3 0.3 1 0.3 1125 9.4
14 10 27.9 4 0.4 1 0.4 815 9.5
15 10 28.1 2 0.2 1 0.2 1771 9.6
* Enter 1 for 8 kg. Hammer, 2 for 4.6 mm hammer
ME & KF
21-Mar-25
1126.12.55
Napa, CAQ
Trancas ST
TR-2
Sheet Number 2 OF 2
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 195 mm
Location
ME & KF
21-Mar-25
1126.12.55
Longitude: -122.29834
Napa, CAQ
Trancas ST
TR-2 Latitude: 38.32343
0 500 1000 1500 2000 2500 3000 3500 4000 4500
D e p th
, I n ch e s
CBR
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 168 mm
Location
Reading # of Blows
Scale
Reading
(cm)
Pen.
Between
Readings
(mm)
Pen. Per blow
Hammer
Factor*
DCP Index
(mm/blow) CBR
Depth, inches
0 20.4 6.6
1 5 21.5 11 2.2 1 2.2 121 7.0
2 5 22.4 9 1.8 1 1.8 151 7.4
3 5 23 6 1.2 1 1.2 238 7.6
4 5 23.8 8 1.6 1 1.6 172 8.0
5 5 24.4 6 1.2 1 1.2 238 8.2
6 5 25 6 1.2 1 1.2 238 8.4
7 10 26.2 12 1.2 1 1.2 238 8.9
8 10 27.1 9 0.9 1 0.9 329 9.3
9 10 28.1 10 1 1 1 292 9.6
10 10 28.9 8 0.8 1 0.8 375 10.0
11 10 29.9 10 1 1 1 292 10.4
12 10 31 11 1.1 1 1.1 262 10.8
13 10 31.9 9 0.9 1 0.9 329 11.1
14 10 32.8 9 0.9 1 0.9 329 11.5
15 10 33.7 9 0.9 1 0.9 329 11.9
16 10 34.9 12 1.2 1 1.2 238 12.3
17 10 36.2 13 1.3 1 1.3 218 12.8
18 10 37.5 13 1.3 1 1.3 218 13.3
19 10 38.5 10 1 1 1 292 13.7
20 10 39 5 0.5 1 0.5 635 13.9
21 10 39.8 8 0.8 1 0.8 375 14.3
22 10 40.2 4 0.4 1 0.4 815 14.4
23 10 40.9 7 0.7 1 0.7 435 14.7
24 10 41 1 0.1 1 0.1 3849 14.7
25 10 41 0 0 1 0 #DIV/0! 14.7
26 10 41 0 0 1 0 #DIV/0! 14.7
* Enter 1 for 8 kg. Hammer, 2 for 4.6 mm hammer
ME & KF
21-Mar-25
1126.12.55
Napa, CAQ
TR-4
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 168 mm
Location
ME & KF
21-Mar-25
1126.12.55
Longitude:
Napa, CAQ
Trancas ST
TR-4 Latitude:
0 50 100 150 200 250 300 350 400 450 500
D e p th
, I n ch e
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 411 mm
Location
Reading # of Blows
Scale
Reading
(cm)
Pen.
Between
Readings
(mm)
Pen. Per blow
Hammer
Factor*
DCP Index
(mm/blow) CBR
Depth, inches
0 45.6 16.2
1 1 46.3 7 7 1 7 33 16.5
2 3 47.4 11 3.666667 1 3.666667 68 16.9
3 3 48.6 12 4 1 4 62 17.4
4 3 49.4 8 2.666667 1 2.666667 97 17.7
5 3 50.2 8 2.666667 1 2.666667 97 18.0
6 3 51.1 9 3 1 3 85 18.3
7 3 51.9 8 2.666667 1 2.666667 97 18.7
8 3 52.7 8 2.666667 1 2.666667 97 19.0
9 3 53.9 12 4 1 4 62 19.4
10 3 55.6 17 5.666667 1 5.666667 42 20.1
11 3 57.5 19 6.333333 1 6.333333 37 20.9
12 2 59.8 23 11.5 1 11.5 19 21.8
13 1 61.8 20 20 1 20 10 22.6
14 1 63.2 14 14 1 14 15 23.1
15 1 64.5 13 13 1 13 17 23.6
16 1 65.7 12 12 1 12 18 24.1
17 1 67.2 15 15 1 15 14 24.7
18 1 68.9 17 17 1 17 12 25.4
19 1 71.1 22 22 1 22 9 26.2
20 1 73.3 22 22 1 22 9 27.1
21 1 74.9 16 16 1 16 13 27.7
22 1 76.1 12 12 1 12 18 28.2
23 1 77.6 15 15 1 15 14 28.8
24 1 81.2 36 36 1 36 5 30.2
25 1 85.3 41 41 1 41 5 31.8
26 1 87.8 25 25 1 25 8 32.8
27 1 90 22 22 1 22 9 33.7
28 1 91.9 19 19 1 19 11 34.4
29 1 94 21 21 1 21 10 35.2
* Enter 1 for 8 kg. Hammer, 2 for 4.6 mm hammer
ME & KF
21-Mar-25
1126.12.55
Napa, CAQ
TR-9
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 411 mm
Location
ME & KF
21-Mar-25
1126.12.55
Longitude:
Napa, CAQ
Trancas ST
TR-9 Latitude:
0 10 20 30 40 50 60 70 80 90 100
D e p th
, I n ch e
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 195 mm
Location
Reading # of Blows
Scale
Reading
(cm)
Pen.
Between
Readings
(mm)
Pen. Per blow
Hammer
Factor*
DCP Index
(mm/blow) CBR
Depth, inches
0 23.4 7.7
1 3 24.9 15 5 1 5 48 8.3
2 3 25.9 10 3.333333 1 3.333333 76 8.7
3 3 26.9 10 3.333333 1 3.333333 76 9.1
4 3 27.7 8 2.666667 1 2.666667 97 9.4
5 3 28.5 8 2.666667 1 2.666667 97 9.7
6 3 29.3 8 2.666667 1 2.666667 97 10.0
7 3 30.2 9 3 1 3 85 10.4
8 3 31.1 9 3 1 3 85 10.7
9 3 32.1 10 3.333333 1 3.333333 76 11.1
10 3 33 9 3 1 3 85 11.5
11 3 34 10 3.333333 1 3.333333 76 11.9
12 3 34.9 9 3 1 3 85 12.2
13 3 35.7 8 2.666667 1 2.666667 97 12.5
14 3 36.7 10 3.333333 1 3.333333 76 12.9
15 3 37.8 11 3.666667 1 3.666667 68 13.3
16 3 38.9 11 3.666667 1 3.666667 68 13.8
17 3 40.1 12 4 1 4 62 14.3
18 3 41.1 10 3.333333 1 3.333333 76 14.6
19 3 41.9 8 2.666667 1 2.666667 97 15.0
20 3 42.7 8 2.666667 1 2.666667 97 15.3
21 3 43.5 8 2.666667 1 2.666667 97 15.6
22 3 44.5 10 3.333333 1 3.333333 76 16.0
23 3 45.3 8 2.666667 1 2.666667 97 16.3
24 3 46.2 9 3 1 3 85 16.7
25 3 47.2 10 3.333333 1 3.333333 76 17.0
26 3 48.3 11 3.666667 1 3.666667 68 17.5
27 3 50.2 19 6.333333 1 6.333333 37 18.2
28 2 51.9 17 8.5 1 8.5 27 18.9
29 1 53.1 12 12 1 12 18 19.4
30 1 54.5 14 14 1 14 15 19.9
31 1 56.7 22 22 1 22 9 20.8
32 1 58.8 21 21 1 21 10 21.6
33 1 61.2 24 24 1 24 8 22.6
34 1 64 28 28 1 28 7 23.7
35 1 67.1 31 31 1 31 6 24.9
36 1 70.4 33 33 1 33 6 26.2
37 1 72.6 22 22 1 22 9 27.0
38 1 73.7 11 11 1 11 20 27.5
39 1 74.6 9 9 1 9 25 27.8
40 1 75.3 7 7 1 7 33 28.1
41 1 76.1 8 8 1 8 28 28.4
42 1 76.7 6 6 1 6 39 28.7
43 1 77.2 5 5 1 5 48 28.9
44 1 77.7 5 5 1 5 48 29.1
45 1 78.7 10 10 1 10 22 29.4
46 1 79.2 5 5 1 5 48 29.6
47 1 79.7 5 5 1 5 48 29.8
48 1 80.2 5 5 1 5 48 30.0
49 1 80.7 5 5 1 5 48 30.2
50 1 81.3 6 6 1 6 39 30.5
51 1 81.7 4 4 1 4 62 30.6
52 1 82.2 5 5 1 5 48 30.8
53 1 82.7 5 5 1 5 48 31.0
54 1 83.1 4 4 1 4 62 31.2
ME & KF
21-Mar-25
1126.12.55
Napa, CAQ
TR-10
55 1 83.7 6 6 1 6 39 31.4
56 1 84.6 9 9 1 9 25 31.8
57 1 85.4 8 8 1 8 28 32.1
58 1 86.2 8 8 1 8 28 32.4
59 1 86.8 6 6 1 6 39 32.6
60 1 87.3 5 5 1 5 48 32.8
61 1 87.7 4 4 1 4 62 33.0
62 1 88.3 6 6 1 6 39 33.2
63 1 88.8 5 5 1 5 48 33.4
64 1 89.2 4 4 1 4 62 33.6
65 1 89.7 5 5 1 5 48 33.8
66 1 90.2 5 5 1 5 48 34.0
67 1 90.7 5 5 1 5 48 34.2
68 1 91.2 5 5 1 5 48 34.4
69 1 91.7 5 5 1 5 48 34.6
70 1 92.2 5 5 1 5 48 34.8
71 1 93.1 9 9 1 9 25 35.1
72 1 93.8 7 7 1 7 33 35.4
73 1 94.7 9 9 1 9 25 35.7
* Enter 1 for 8 kg. Hammer, 2 for 4.6 mm hammer
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 195 mm
Location
ME & KF
21-Mar-25
1126.12.55
Longitude:
Napa, CAQ
Trancas ST
TR-10 Latitude:
0 10 20 30 40 50 60 70 80 90 100
D e p th
, I n ch e
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 130 mm
Location
Reading # of Blows
Scale
Reading
(cm)
Pen.
Between
Readings
(mm)
Pen. Per blow
Hammer
Factor*
DCP Index
(mm/blow) CBR
Depth, inches
0 15.3 5.1
1 5 16.1 8 1.6 1 1.6 172 5.4
2 10 16.9 8 0.8 1 0.8 375 5.7
3 10 17.7 8 0.8 1 0.8 375 6.1
4 10 18.2 5 0.5 1 0.5 635 6.3
5 10 18.4 2 0.2 1 0.2 1771 6.3
6 10 18.8 4 0.4 1 0.4 815 6.5
7 10 19.2 4 0.4 1 0.4 815 6.7
8 10 19.2 0 0 1 0 #DIV/0! 6.7
9 10 19.5 3 0.3 1 0.3 1125 6.8
* Enter 1 for 8 kg. Hammer, 2 for 4.6 mm hammer
ME & KF
21-Mar-25
1126.12.55
Napa, CAQ
TR-11
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 130 mm
Location
ME & KF
21-Mar-25
1126.12.55
Longitude: -122.29239
Napa, CAQ
Trancas ST
TR-11 Latitude: 38.32413
0 200 400 600 800 1000 1200 1400 1600 1800 2000
D e p th
, I n ch e
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 143 mm
Location
Reading # of Blows
Scale
Reading
(cm)
Pen.
Between
Readings
(mm)
Pen. Per blow
Hammer
Factor*
DCP Index
(mm/blow) CBR
Depth, inches
0 17.8 5.6
1 5 18.7 9 1.8 1 1.8 151 6.0
2 10 19.9 12 1.2 1 1.2 238 6.5
3 10 20.9 10 1 1 1 292 6.9
4 10 22.1 12 1.2 1 1.2 238 7.3
5 10 23.5 14 1.4 1 1.4 200 7.9
6 10 24.9 14 1.4 1 1.4 200 8.4
7 10 26.4 15 1.5 1 1.5 185 9.0
8 10 28.3 19 1.9 1 1.9 142 9.8
9 10 29.5 12 1.2 1 1.2 238 10.2
10 10 30.9 14 1.4 1 1.4 200 10.8
11 10 32.6 17 1.7 1 1.7 161 11.5
12 10 34.2 16 1.6 1 1.6 172 12.1
13 10 36.1 19 1.9 1 1.9 142 12.8
14 10 38.3 22 2.2 1 2.2 121 13.7
15 10 40.3 20 2 1 2 134 14.5
16 10 42.8 25 2.5 1 2.5 105 15.5
17 10 45.7 29 2.9 1 2.9 89 16.6
18 10 49.9 42 4.2 1 4.2 59 18.3
19 5 56.7 68 13.6 1 13.6 16 20.9
20 1 57.7 10 10 1 10 22 21.3
21 1 58.8 11 11 1 11 20 21.8
22 1 59.8 10 10 1 10 22 22.2
23 1 61.9 21 21 1 21 10 23.0
24 1 63.8 19 19 1 19 11 23.7
25 1 65.5 17 17 1 17 12 24.4
26 1 65.6 1 1 1 1 292 24.4
27 1 67.2 16 16 1 16 13 25.1
28 1 68.4 12 12 1 12 18 25.6
29 1 69.4 10 10 1 10 22 25.9
30 1 70.3 9 9 1 9 25 26.3
31 1 71.3 10 10 1 10 22 26.7
32 1 72.2 9 9 1 9 25 27.0
33 1 73.2 10 10 1 10 22 27.4
34 1 74.2 10 10 1 10 22 27.8
35 1 75.4 12 12 1 12 18 28.3
36 1 76.2 8 8 1 8 28 28.6
37 1 77.1 9 9 1 9 25 29.0
38 1 78.4 13 13 1 13 17 29.5
39 1 79.1 7 7 1 7 33 29.8
40 1 80.2 11 11 1 11 20 30.2
41 1 81.1 9 9 1 9 25 30.6
42 1 82.1 10 10 1 10 22 30.9
43 1 83.2 11 11 1 11 20 31.4
44 1 84.4 12 12 1 12 18 31.9
45 1 85.4 10 10 1 10 22 32.2
46 1 86.9 15 15 1 15 14 32.8
47 1 88 11 11 1 11 20 33.3
48 1 89.6 16 16 1 16 13 33.9
49 1 91.1 15 15 1 15 14 34.5
50 1 92.4 13 13 1 13 17 35.0
51 1 93.7 13 13 1 13 17 35.5
52 1 95.1 14 14 1 14 15 36.1
* Enter 1 for 8 kg. Hammer, 2 for 4.6 mm hammer
ME & KF
21-Mar-25
1126.12.55
Napa, CAQ
TR-13
DCP LOG Test Date
Job #
Client Hammer Weight X 8 Kg 4 Kg
Facility Depth of Zero 143 mm
Location
ME & KF
21-Mar-25
1126.12.55
Longitude: -122.29727
Napa, CAQ
Trancas ST
TR-13 Latitude: 38.32322
-4
-50 0 50 100 150 200 250 300 350
D e p th
, I n ch e
Attachment E – Laboratory Testing Results
Sample Details
Technician: Client
Sample Location: Project #: 1126.10.55 (Task 1.1) TR3 (Trancas St.)
17 34" Depth
Sample Date: 03/21/2025
Sample Number: 37374
Lab: BSK Livermore
ASTM D4318
Plastic Limits
Pan Number Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 27.54 26.47 20.48 1.07 5.99 17.86
2 27.82 26.75 20.70 1.07 6.05 17.69
Liquid Limits
Pan Number Number of Blows
Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 34 26.44 22.55 10.84 3.89 11.71 33.22
2 24 28.91 24.36 11.32 4.55 13.04 34.89
3 15 25.89 21.96 11.37 3.93 10.59 37.11
Test Notes: TR3 (Trancas St.)
Test Completed By: Nicholas Shelly Test Completed Date: 04/01/2025
Approved By: Nicholas Shelly Approved Date: 04/02/2025
Plasticity Index 0060000001Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
The report shall not be reproduced, except in full, without the prior written approval of BSK.
Page 1 of 4Page 1 of 3
Sample Location: Project #: 1126.10.55 (Task 1.1) TR3 (Trancas St.)
17 34" Depth
Sample Date: 03/21/2025
Sample Number: 37374
Lab: BSK Livermore
ASTM D4318
Plastic Limits
Pan Number Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 27.54 26.47 20.48 1.07 5.99 17.86
2 27.82 26.75 20.70 1.07 6.05 17.69
Liquid Limits
Pan Number Number of Blows
Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 34 26.44 22.55 10.84 3.89 11.71 33.22
2 24 28.91 24.36 11.32 4.55 13.04 34.89
3 15 25.89 21.96 11.37 3.93 10.59 37.11
Test Notes: TR3 (Trancas St.)
Test Completed By: Nicholas Shelly Test Completed Date: 04/01/2025
Approved By: Nicholas Shelly Approved Date: 04/02/2025
Plasticity Index 0060000001Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
Page 2 of 4Page 2 of 3
Sample Location: Project #: 1126.10.55 (Task 1.1) TR3 (Trancas St.)
17 34" Depth
Sample Date: 03/21/2025
Sample Number: 37374
Lab: BSK Livermore
ASTM D4318
Plastic Limits
Pan Number Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 27.54 26.47 20.48 1.07 5.99 17.86
2 27.82 26.75 20.70 1.07 6.05 17.69
Liquid Limits
Pan Number Number of Blows
Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 34 26.44 22.55 10.84 3.89 11.71 33.22
2 24 28.91 24.36 11.32 4.55 13.04 34.89
3 15 25.89 21.96 11.37 3.93 10.59 37.11
Test Notes: TR3 (Trancas St.)
Test Completed By: Nicholas Shelly Test Completed Date: 04/01/2025
Approved By: Nicholas Shelly Approved Date: 04/02/2025
Group Symbol UNIFIED SOIL
CLASSIFICATION
FINE GRAINED
SOILS GROUP
OL Organic silts and organic silty clays of low plasticity
ML Inorganic clayey silts to very fine sands of slight plasticity
CL Inorganic clays of low to moderate plasticity
OH Organic clays of moderate to high plasticity, organic silts
MH Inorganic silts and clayey silts
CH Inorganic clays of high plasticity
Soil Classification CL
Liquid Limit (LL) 35
Plastic Limit (PL) 18
Plasticity Index (PI=LLPL) 17
Plasticity Index 0060000001Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
Page 3 of 4Page 3 of 3
Sample Location: Project #: 1126.10.55 (Task 1.1) TR8 (Trancas St.)
29 32" Depth
Sample Date: 03/21/2025
Sample Number: 37375
Lab: BSK Livermore
ASTM D4318
Plastic Limits
Pan Number Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 27.88 26.84 20.71 1.04 6.13 16.97
2 27.89 26.85 20.69 1.04 6.16 16.88
Liquid Limits
Pan Number Number of Blows
Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 29 26.12 22.82 11.32 3.30 11.50 28.70
2 20 26.18 22.74 11.30 3.44 11.44 30.07
3 15 28.05 24.06 11.25 3.99 12.81 31.15
Test Notes: TR8 (Trancas St.)
Test Completed By: Trevor Hamilton Test Completed Date: 04/04/2025
Approved By: Nicholas Shelly Approved Date: 04/07/2025
Plasticity Index 0060000002Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
Page 1 of 4Page 1 of 3
Sample Location: Project #: 1126.10.55 (Task 1.1) TR8 (Trancas St.)
29 32" Depth
Sample Date: 03/21/2025
Sample Number: 37375
Lab: BSK Livermore
ASTM D4318
Plastic Limits
Pan Number Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 27.88 26.84 20.71 1.04 6.13 16.97
2 27.89 26.85 20.69 1.04 6.16 16.88
Liquid Limits
Pan Number Number of Blows
Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 29 26.12 22.82 11.32 3.30 11.50 28.70
2 20 26.18 22.74 11.30 3.44 11.44 30.07
3 15 28.05 24.06 11.25 3.99 12.81 31.15
Test Notes: TR8 (Trancas St.)
Test Completed By: Trevor Hamilton Test Completed Date: 04/04/2025
Approved By: Nicholas Shelly Approved Date: 04/07/2025
Plasticity Index 0060000002Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
Page 2 of 4Page 2 of 3
Sample Location: Project #: 1126.10.55 (Task 1.1) TR8 (Trancas St.)
29 32" Depth
Sample Date: 03/21/2025
Sample Number: 37375
Lab: BSK Livermore
ASTM D4318
Plastic Limits
Pan Number Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 27.88 26.84 20.71 1.04 6.13 16.97
2 27.89 26.85 20.69 1.04 6.16 16.88
Liquid Limits
Pan Number Number of Blows
Weight of Pan Wet Soil (g)
Weight of Pan Dry Soil (g)
Weight of Pan (g)
Weight of Water (g)
Weight of Dry Soil (g)
Percent Moisture (%)
1 29 26.12 22.82 11.32 3.30 11.50 28.70
2 20 26.18 22.74 11.30 3.44 11.44 30.07
3 15 28.05 24.06 11.25 3.99 12.81 31.15
Test Notes: TR8 (Trancas St.)
Test Completed By: Trevor Hamilton Test Completed Date: 04/04/2025
Approved By: Nicholas Shelly Approved Date: 04/07/2025
Group Symbol UNIFIED SOIL
CLASSIFICATION
FINE GRAINED
SOILS GROUP
OL Organic silts and organic silty clays of low plasticity
ML Inorganic clayey silts to very fine sands of slight plasticity
CL Inorganic clays of low to moderate plasticity
OH Organic clays of moderate to high plasticity, organic silts
MH Inorganic silts and clayey silts
CH Inorganic clays of high plasticity
Soil Classification CL
Liquid Limit (LL) 29
Plastic Limit (PL) 17
Plasticity Index (PI=LLPL) 12
Plasticity Index 0060000002Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
Page 3 of 4Page 3 of 3
Sample Location: Project #: 1126.10.55 (Task 1.1) TR3 (Trancas St.)
17 34" Depth
Sample Date: 03/21/2025
Sample Number: 37374
Lab: BSK Livermore
Test Results
ASTM D2844
Sample Description: Clay
Sample Number
1 2 3
Exudation Pressure, lb.
9359 6780 3266
Exudation Pressure, PSI
745.1 539.8 260.0
Expansion, *0.0001 IN
Expansion Pressure, PSF
0 0 0
Stabilometer pH @ 2000lbs
120 130 146
Displacement 3.26 3.70 5.10
Resistance Value R
20 13 4
R Value Corrected for Height
20 13 4
% Moisture at Test
10.9 12.1 14.6
Dry Density at Test, PCF
118.0 114.6 111.5
RValue @ 300 Exudation Pressure: 5
Test Notes: TR3 (Trancas St.)
Test Completed By: Trevor Hamilton Test Completed Date: 04/07/2025
Approved By: Nicholas Shelly Approved Date: 04/07/2025
RValue 0029000002Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
Page 1 of 2Page 1 of 1
Sample Location: Project #: 1126.10.55 (Task 1.1) TR8 (Trancas St.)
29 32" Depth
Sample Date: 03/21/2025
Sample Number: 37375
Lab: BSK Livermore
Test Results
CT 301
Sample Description: Clay
Sample Number
1 2 3
Exudation Pressure, lb.
9845 3368 1353
Exudation Pressure, PSI
783.8 268.2 107.7
Expansion, *0.0001 IN
Expansion Pressure, PSF
0 0 0
Stabilometer pH @ 2000lbs
100 149 150
Displacement 4.04 4.15 5.29
Resistance Value R
27 4 3
R Value Corrected for Height
27 4 3
% Moisture at Test
10.9 13.0 16.3
Dry Density at Test, PCF
116.7 123.0 117.5
RValue @ 300 Exudation Pressure: 5
Test Notes: TR8 (Trancas St.)
Test Completed By: Trevor Hamilton Test Completed Date: 04/03/2025
Approved By: Nicholas Shelly Approved Date: 04/04/2025
RValue 0029000001Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
Sample Location: Project #: 1126.10.55 (Task 1.1) TR3 (Trancas St.)
17 34" Depth
Sample Date: 03/21/2025
Sample Number: 37374
Lab: BSK Livermore
ASTM D2216
Wet Received Weight (g) 2652.1
Dry Weight (g) 2352.9
Tare Weight (g) 572.5
Moisture Content (%) 16.8
Description Clay
Desiccator Used?: Yes
Test Notes: TR3 (Trancas St.)
Test Completed By: Trevor Hamilton Test Completed Date: 03/31/2025
Approved By: Nicholas Shelly Approved Date: 04/01/2025
Soil Moisture Content SMC000001Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
Sample Location: Project #: 1126.10.55 (Task 1.1) TR8 (Trancas St.)
29 32" Depth
Sample Date: 03/21/2025
Sample Number: 37375
Lab: BSK Livermore
ASTM D2216
Wet Received Weight (g) 2329.1
Dry Weight (g) 2133.8
Tare Weight (g) 575.0
Moisture Content (%) 12.5
Description Clay
Desiccator Used?: Yes
Test Notes: TR8 (Trancas St.)
Test Completed By: Trevor Hamilton Test Completed Date: 03/31/2025
Approved By: Nicholas Shelly Approved Date: 04/01/2025
Soil Moisture Content SMC000002Report #:
MK Reviewed
Livermore 399 Lindbergh Avenue Livermore, CA 94551 Phone: 9253153151
Client:
NCE / Nichols Consulting Engineers 501 Canal Blvd., Suite I Point Richmond, CA 94804
Project:
C25000283 NCE Napa Lab Testing Trancas Street (WA 25 02) 1003 W Cutting Blvd., Suite 110 Pt. Richmond, CA 94804
The results relate only to the items inspected or tested.
| Background |
| Field Investigation |
| Pavement Condition Survey |
| Pavement Coring |
| DCP Testing |
| Overall, of the DCP tests that were not refusal, estimated AB thicknesses range from 12 inches to 18 inches. |
| Pavement Deflection Testing |
| Laboratory Testing |
| Pavement Design |
| Caltrans Empirical Design |
| Engineering Judgement Designs |
| Rehabilitation Recommendations |
| Treatment Discussion |
| Mill and Overlay |
| Cold In-Place Recycling (CIR) |
| Full Depth Reclamation (FDR) |
| Value and “Green” Treatment Descriptions |
| Cold In-Place Recycling (CIR) Asphalt Concrete |
| Rubberized Hot Mix Asphalt (RHMA) |
| Full Depth Reclamation |
| Construction Considerations |
| Base Repairs |
| Full Width Milling |
| Closure |
| Table 1 Trancas Draft.pdf |
| TR-Table 1 |
| Trancas - DCP Combined.pdf |
| DCP_elec entry form loc_TR-02 |
| DCP_elec entry form loc_TR-04 |
| DCP_elec entry form loc_TR-09 |
| DCP_elec entry form loc_TR-10 |
| DCP_elec entry form loc_TR-11 |
| DCP_elec entry form loc_TR-13 |
| Lab Test Results Combined.pdf |
| Plasticity Index 2025-03-21_Sample 37374 |
| Plasticity Index 2025-03-21_Sample 37375 |
| R Value Soil _2025-03-21_TR-3 |
| R Value Soil 2025-03-21_Sample 37375 |
| Soil Moisture Content 2025-03-21_Sample 37374 |
| Soil Moisture Content 2025-03-21_Sample 37375 |
File details come from the government source that posted it. Updated .