2b_-_Egret_Geotechnical_Data.pdf
PDF 2 MB Posted
- Solicitation number
- 26-B-38IF
- Issued by
- Volusia County, Florida
About this file
This is a geotechnical report prepared by Bechtol Engineering and Testing, Inc. (BET) for Coastal Tech-G.E.C., Inc. and the City of Port Orange, Volusia County, Florida, addressing subsurface soil conditions at the Egret Avenue Beach Access site. The report evaluates physical and strength characteristics of shallow subsurface materials to support the design of a replacement boardwalk landing and sheet pile bulkhead structure. BET advanced one Standard Penetration Test (SPT) boring to a depth of 40 feet below existing ground surface in the probable construction area. The geotechnical investigation was completed on September 23, 2024, and the report was finalized on September 27, 2024. The report provides soil profiles, boring location plans, and suggested soil parameters including friction angles, cohesion values, unit weights, modulus of subgrade reaction, and earth pressure coefficients across five distinct soil layers ranging from light gray-brown fine sand at the surface to dark gray fine sand with shell at depth. Groundwater was encountered at approximately 2.0 feet below existing ground surface as of September 16, 2024.
The suggested soil parameters are presented in tabular format across five identified soil strata, with friction angles ranging from 30.0 to 42.1 degrees, cohesion values at zero for all layers, unit weights between 55.4 and 74.5 pounds per cubic foot, and modulus of subgrade reaction values ranging from 43.7 to 197.2 pounds per cubic inch. The report was prepared under Project No. G24132 and sealed by Love B. Patel, P.E., a Florida-licensed Professional Engineer (License No. 90753). This geotechnical data directly supports the Heron Street, Egret Avenue, and Mallard Street Seawall Replacement Project, which is a post-hurricane coastal restoration initiative funded through FEMA addressing damage from Hurricanes Ian and Nicole and requiring construction of concrete sheet pile seawalls with replacement boardwalks and beach access improvements.
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Text version
September 27, 2024
BET Project No. G24132
TO: Mr. Tem Fontaine, P.E.
Coastal Tech-G.E.C., Inc.
3625 20th Street
Vero Beach, Florida 32960
RE: Report of Geotechnical Data
Egret Avenue Beach Access
Parcel # 631202000003
Port Orange, Volusia County, Florida
Dear Mr. Fontaine:
As requested, Bechtol Engineering and Testing, Inc. (BET) has provided geotechnical services at the above referenced project site. The purpose of BET’s services was to evaluate physical and strength characteristics of subsurface materials encountered by test boring within the probable construction area of a replacement board walk landing and sheet pile bulkhead, and based on these characteristics, to provide soil parameters for use in sheet pile, bulkhead, and boardwalk landing design (by others).
In order to evaluate the physical and strength characteristics of the site’s shallow subsurface soils, BET advanced one (1) Standard Penetration Test (SPT) boring (ASTM D1586) adjacent to the probable construction areas, to a depth of 40 feet below existing ground surface. Approximate location of the boring is shown on the Boring Location Plan presented on the attached Figure 1. Encountered subsurface conditions are presented in the form of Soil Profiles, also shown on Figure 1. Additionally, Suggested Soil Parameters are tabulated on Figure 1 to aid the Design Engineer in the design and construction of the replacement board walk landing and sheet pile bulkhead structures.
BET appreciates the opportunity to be of service, and trusts the attached geotechnical data is sufficient for your needs. However, if you should have any questions, or if BET may be of further service, please do not hesitate to call.
Respectfully, Bechtol Engineering and Testing, Inc.
Love B. Patel, P.E.
Senior Geotechnical Engineer Love B. Patel, P.E., State of Florida Professional Engineer, License No. 90753 This item has been digitally signed and sealed by Love B. Patel, P.E. on the date adjacent to the seal. Printed copies of this document are not considered signed and sealed, and the signature must be verified on any electronic copies.
G24132 Report of Geotechnical Data.wpd
A P
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C H
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S S
SOIL PROFILES
SOIL & SYMBOL LEGEND
VERTICAL SCALE: 1" = 5'
BORING LOCATION PLAN
SCALE: 1" = 30'
LIGHT GRAY-BROWN TO BROWN FINE SAND, (SP), VERY
LOOSE TO MEDIUM DENSE
LIGHT BROWN FINE SAND, WITH VARYING QUANTITIES OF
SHELL, (SP), MEDIUM DENSE TO VERY DENSE
DARK GRAY TO GRAY FINE SAND, WITH SHELL, (SP),
MEDIUM DENSE TO DENSE
UNIFIED SOIL CLASSIFICATION GROUP SYMBOL AS
DETERMINED BY VISUAL EXAMINATION
GROUNDWATER LEVEL, REFERENCED IN FEET TO
EXISTING GROUND SURFACE, DATE OF READING
STANDARD PENETRATION RESISTANCE IN BLOWS PER
FOOT
APPROXIMATE LOCATION OF STANDARD PENETRATION
TEST BORING
N
(SP)
-2.0
9-16-24
0.0' TO 3.0'
DEPTH
MODULUS OF
SUBGRADE - K
(pci)
SUGGESTED SOIL PARAMETERS
COHESION - c (ksf)
STRAIN AT 50%
STRESS - e50
(in./in.)
UNIT
WEIGHT - Ɣ
(pcf)
FRICTION
ANGLE - Φ
(degrees)
RELATIVE
DENSITY
3.0' TO 5.0'
5.0' TO 14.0'
14.0' TO 29.0'
AT REST
EARTH
PRESSURE K0
ACTIVE
EARTH
PRESSURE KA
PASSIVE
EARTH
PRESSURE KP
29.0' TO 39.0'
39.0' TO 40.0'
55.4
45.4
65.6
30.0
34.4
0.00
0.00
NA
NA43.7
14.9
39.6 0.00 NA143.5
41.74
20.99
81.83
74.5 42.1 0.00 NA197.2 95.94
0.33
0.280.44
0.50
0.220.36
3.60
3.00
4.52
0.200.33 5.07
60.2 37.6 0.00 NA86.0 62.070.240.39 4.13
55.4 34.4 0.00 NA43.7 41.740.280.44 3.60
TB-1
EGRET AVENUE
S O
U T
H A
T L
A N
T
IC
A V
E N
U E
TB-1
-2.0
9-16-24
D E
P T
H I N
F E
E T
B E
L O
W E
X
IS
T
IN
G G
R O
U N
D S
U R
F A
C E
SCALE (feet)
0 10 20 30
| 2024-09-27T09:49:56-0400 | |
| Love B Patel |
File details come from the government source that posted it. Updated .