20161268 Ver 1_R3300A_HampsteadByPass_Proposal_20171204

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Engin�ers amc# Scientists
May 26, 2017
Mr. Ricky Greene Jr., P.E.
Stantec Inc.
801 Jones Franklin Road
Suite 300
Raleigh, North Carolina 27606-3394
Post Office Box 10279
Wilmington, North Carolina 28404-0279
Telephone: [phone]
Fax: [phone]
www.catlinusa.com
Re: Work Plan and Fee Estimate to PerForm Subsurface Investigation, Roadway
Inventory, and Roadway Recommendations
WBS Number: 54023.1.1
TIP Number: R-3300A
Counties: New Hanover and Pender
Description: Hampstead Bypass from Wilmington Bypass to -L1- Station
578+00.
CATLIN Number: 217059
Dear Mr. Greene:
We appreciate the opportunity to provide Stantec, Incorporated (STANTEC) with the
following Work Plan and Lump Sum Estimate for completing a Roadway Subsurface
Investigation, Roadway Inventory Report, and Roadway Recommendations at the
above-referenced project. All work will be conducted in English units (feet). The project
is located near the cities of Wilmington and Hampstead, in New Hanover and Pender
Counties.
SCOPE OF WORK
CATLIN's anticipated tasks may consist of the following:
• Development of scope of work (SOW) and boring plan.
• Property owner contacts.
• Clearing.
• Boring layout.
• Utility clearance coordination.
• Advancement of Standard Penetration Test (SPT) borings, Cone Penetration
Test (CPT) soundings, Direct Push Technologies (DPT) probes, hand-auger
borings.
• Laboratory Testing
• Roadway Inventory Report
• Roadway Recommendations Report

All borings will be field located by CATLIN Engineers and Scientists (CATLIN).
Utility clearance and property owner contacts will be coordinated by CATLIN
personnel and conducted prior to commencing drilling activities.
CATLIN will provide a field professional for observations and logging of borings and
soundings.
The proposed work will be performed as described below:
• Safety
Site safety meetings will be held prior to work commencement to identify
potential hazards associated with the work environment. Site safety meetings
will be conducted by the site manager and will include all personnel involved in
the day's field activities. A safety meeting will be conducted prior to
commencement of the project and will include the site geologist and project
technicians. Traffic control is not anticipated.
• Drilling
Based on the provided 15% design files, the following alignments are anticipated
to be investigated:
ALIGNMENT LENGTH (FT) SPT SPT CPT/DPT CPT
BORINGS FOOTAGE SOUNDINGS FOOTAGE
-L1- 37,213.16 62 1,250 115 2,283
-SR1- 1,289.00 2 21 3 35
-SR2- 441.39 0 0 0 0
-SR3- 816.99 0 0 0 0
-Y33LPC- 1,645.31 1 30 4 93
-Y33RPA- 2,373.03 2 24 3 55
-Y33RPB- 2,025.53 3 42 6 90
-Y33RPCA- 4,210.01 1 56 5 261
-Y34- 2,280.00 3 124 6 188
-Y35- 2,200.00 2 48 4 150
TOTALS: 54,494.42 76 1,595 146 3,155
The subsurface investigation is anticipated to be performed with a track-mounted
CPT rig equipped with a direct push technologies (DPT) sampling apparatus and
Central Mine Equipment (CME) drilling rigs mounted on a rubber tracked and a
wheeled all-terrain vehicle (ATV). Data collected essentially continuously during
the advancement of the CPT borings will include Cone (Tip) Resistance, Local
(Sleeve) Friction, Pore Pressure, and Depth. From this data Tip Resistance,
Sleeve Friction, Friction Ratio, Pore Pressure, Soil Behavior Type (based on
Robertson 1990) with interpreted AASHTO soil equivalent, and 60% Equivalent
Standard Penetration Testing (SPT) N-Values will be generated and presented
on the Final CPT Logs. All SPT will be conducted using automated hammers
and will be conducted in general accordance with NCDOT standards. Borings
are anticipated to be advanced approximately every 200 feet along the proposed
alignments to a depth of approximately 1.5 times the fill height. An estimated
additional 300 hand auger / soil probes will be advance at various offsets along
the alignments where delineation of surficial organic soils is necessary. Due top

the anticipated site conditions, substantial mechanical will be necessary to
access the majority of the proposed borings. Clearing is anticipated to be
conducted with a rotary axe mounted on a tracked skid-steer carrier. Three
borings are anticipated to be advanced at the location of each proposed culvert.
All field activities will be conducted under the direction of CATLIN personnel
unless requested otherwise. Shelby tubes may be collected if soft to medium
stiff cohesive or highly organic soils are encountered in fill areas.
• Laboratory Testing
To confirm the field geologist's observations and soil classifications, laboratory
testing will be performed. At selected boring intervals, Atterberg Limits, Grain
Size Analysis with NCDOT modified hydrometer, organic content, and moisture
content may be performed on collected samples. A total of 340 samples are
anticipated to be collected and analyzed during this investigation. The analyses
will be performed in general accordance with one or more of the following
AASHTO Standards as modified by NCDOT:
M-145 (Soil Classification)
T 265 (Soil Moisture Content)
T 267 (Organic Content)
T-208, T-216, T-296, T-297 (Shelby Tubes)
• Surveying
CATLIN personnel will determine the location of proposed and as-drilled boring
locations including Northing/Easting utilizing the North Carolina State Plane
(NCSP) North American Datum (NAD) 1983 coordinate system. Locations of
proposed borings will be established using a Global Positioning System (GPS)
then referenced to NCDOT Alignments. Collar elevations for roadway borings
will be determined using the provided .tin file. Collar elevations for structure
borings will be determined either with a Survey Grade GPS or with traditional
level survey tied to existing benchmarks. All units will be recorded and submitted
in United States (US) feet to a horizontal accuracy of one foot and vertical
accuracy of one-tenth of a foot.
• Borehole Abandonment
Borings will be backfilled with native material and bentonite chips to pre-existing
ground elevation subsequent to collection of 24-hour ground water
measurements. A protective cover such as sandbags or other suitable material
may be placed over open holes until they are backfilled. Borings may be filled
immediately after drilling if deemed necessary due to site safety concerns or
access issues.

FINAL DELIVERABLE
The final deliverable shall consist of the following:
• Electronic files of all information used to generate the report at the time of final
submittal. Folders will be named according to the NCDOT standard folder and
naming conventions and place in the proper folders per GEU guidelines.
• Roadway Inventory Report
o Title Sheet
o Legend
o Roadway Title Sheet
o Plan Sheets
o Subsurface Profiles
o Select Cross Sections
o Soil Test Results
• Roadway Recommendations Report
o Design and Construction Recommendations Text
o Title Sheet
o Legend
o Roadway Title Sheet
o Plan Sheets
o Subsurface Profiles
o Select Cross Sections
o Soil Test Results
o Estimated Quantities
• One copy of Supportive Documents including Boring Quantity Summation Sheet,
Original Field Notes/Logs, Property Owner Contact Sheets, and other pertinent
data.
PROJECT SCHEDULE
Fieldwork consisting of boring layout and property owner contact is presently scheduled
to start as soon as a Notice to Proceed (NTP) is provided which is anticipated to be in
August 2017. Utility verification and field investigations are anticipated to commence
the same week. Investigative field work is predicted to take approximately 200 man-
days for completion.
KEY PERSONNEL
Several key personnel are designated to the project team for work performed under this
contract. Below is a listing of the employees name, role, and classification that may be
assigned to the project.
Personnel Role Position/Classification
Steven V. Hudson, PG, CWC Project Manager / Project Senior Geologist
Geologist

J. Lee Stone, PG Project Geologist Senior Geologist
Ben D. Lackey Jr., PE Geotechnical Engineer Senior Engineer
Sean J. O'Neil, PE Geotechnical Engineer Project Engineer
Corey D. Futral, CWC Boring Layout / Site Field Geologist
Supervision
Lindsay G. Pugh Boring Layout / Site Field Geologist
Supervision
Christian B. Alexander Boring Layout / Site Field Geologist
Supervision
Shawn D. McGuire Boring Layout / Site Field Geologist
Supervision
Michael D. Mason Laboratory Manager / QC Field Engineer
William J. Miller, CWC Driller / Driller's Assistant Drill Technician/Crew
D. Thompson Chalmers, Jr., CWC Driller / Driller's Assistant Drill Technician/Crew
Thomas Spencer Driller / Driller's Assistant / Drill Helper/Crew
Hand Augers
Joshua Moody Driller's Assistant / Hand Drill Helper/Crew
Augers
Sheila Smith Comptroller Clerical
Mid Atlantic Drilling Clearing and Difficult Subcontractor
Access Drilling
ASSUMPTIONS
CATLIN has based this SOW and lump sum estimate with the following assumptions:
• CATLIN will be provided with all necessary electronic files including but not
limited to plan sheets, profile sheets, cross sections, .gpk files, .tin files and all
associated reference files.
• Proposed boring plan and estimates are based on design drawings as provided
to CATLIN in May 2017. Any changes in proposed design may result in a
change in scope and price.
• CATLIN personnel and equipment will have permission to access all areas of
investigation.
• All proposed boring locations will be accessible with either a track or rubber tired
all-terrain vehicle (ATV). No amphibious or barge mounted equipment has been
included.
• All utility locates will be conducted by NC OneCall. No private locators included.

• If materials in excess of 100 blows per foot (BPF) are encountered prior to
achieving proposed boring depth, borings will be terminated. No coring is
included.
• In the event that suspected contaminated materials are encountered, drilling
activities will cease and STANTEC will be notified immediately.
ESTIMATE
Our proposed lump sum estimate for performing all engineering, drilling, surveying,
report preparation, project administration, etc. for completing this project as described is
$733,000.94. Details are provided in an attachment. The work will be billed on a lump
sum basis.
If you should have any questions or need additional information, please feel free to
contact us at [phone]. We look forward to working with you and your staff on
this project.
Sincerely,
G�
Steven V. Hudson, PG, CWC
Project Manager