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JORGE C. CANO, P.E.
Director
October 14, 2003
PBSJ
2001 NW 107TH Ave.
Miami Florida 33172-2507
Attn: Patricia Carney,P.E.
Dear Mrs. Carney:
Re: Avalon Storm Sewer Project, Phase II, B-5685B — Work Order Authorization.
This work order is deemed to incorporate by reference the term and conditions of the
Professional Service Agreement between the City of Miami ("City") and PBSJ dated
May 13, 2002. The undersigned will perform this work in compliance with the foregoing
Agreement.
JOE ARRIOLA
City Manager
1.- Scope of services
The scope of services are detailed in Exhibit "A", attached hereto and made part hereof.
2.- Time of performance
The schedule for performance of the work is detailed in Exhibit "B", attached hereto and
made a part hereto.
3.- Compensation
The work will be performed for a fee guaranteed not to exceed the sum of
$184,900. The City shall not be liable for any cost, fee, or expenditure above set
forth in this section. The above quoted fee includes an allowance for
reimbursable expenses that comply with the requirements of the Agreement. Any
eligible reimbursable expenses shall conform to the limitations of § 112.061, Fla.
Stat.
4.- Subconsultants
Subconsultants were not specified on this proposal.
DEPARTMENT OF CAPITAL IMPROVEMENTS
444 S.W. 2nd Avenue, 8th'Floor / Miami, FL 33130 / (305) 416-1280 / Fax: (305) 416-2153
Mailing Address: P.O. Box 330708 Miami, FL 33233-0708
PBSJ
Avalon Storm Sewer Project, Phase II, B-5685B
Page No. 2
5.- Estimated Construction Cost
An estimated construction total cost of $ 3,651,000.00 has been established for this
project.
6.- Funding
Source of founding is CIP Number 352208, in districts 2 and 4, for the project entitled
"Avalon Storm Sewer Project, Phase II, B5685B".
7.- Attachements
a) Professional Services Agreement between PBSJ and The City of Miami,
dated May 13, 2002.
b) Scope of Services for "Avalon Storm Sewer Project Phase, II, B-5685B":
Exhibit "A" & Exhibit "B".
Authorized by:
Accepted and accepted by:
urge C. Cano, P.E PBSJ,
C.I.P. Director
Patricia Carney, P.E.
Approved as to legal form Insurance requirement approved:
and correctness:
Alejandro Vilarello, Dianne Ericson,
City Attorney
Risk Management Administrator
Priscilla A. Thompson Date Witness
City Clerk
4JCIJ /CG/MAV/mav
Pffil
An employee -owned company
September 12, 2003
Mr. Manny Vega
Engineer I
Capital Improvement Projects Department
City of Miami
• 444 SW 2nd Ave.
Miami, FL 33130
RE: City of Miami Avalon Area Stormwater Drainage System Phase II
File: 01-1341.03 #1
Dear Mr. Vega:
As per your request we are submitting a proposal, herein, for the above referenced project.
PROJECT UNDERSTANDING
The overall intent of this project is to provide drainage system modifications to serve a developed
residential area, bounded by SW 22nd Street to the north, South Dixie Highway (US1) to the south,
SW 37th Avenue to the west and SW 32nd Avenue to the east. It is the intent of the City to provide
additional french drain systems, solid piping, catch basins, manholes, in accordance with the Avalon
Stormwater Drainage System Conceptual Design Report (ASDSCDR) prepared for this area by
PB S&J in December of 2002.
SCOPE OF WORK (EXHIBIT A)
TASK 1— PROJECT MEETINGS
PBS&J anticipates holding four (4) meetings throughout the duration of the project including a project
kick-off meeting, a coordination meeting with the Department of Environmental Resources
Management (DERM), a 50% design review meeting and a 90% design review meeting. PBS&J will
prepare and transmit meeting minutes to the City within five working days of each meeting.
A t�.
8Y;
DATE,-.._.Qg3
2001 Northwest 107th Avenue, Miami, Florida 33172-2507 • Telephone (305) 592-7275 • www.pbsj.com
Mr. Manny Vega
September 12, 2003
Page 2 of 5
TASK 2 — PRELIMINARY DESIGN
Task 2,1 Survey
As part of this task, PBS&J will collect topographic information to support the analysis and design of
the drainage improvements for this project. PBS&J will obtain roadway cross -sections at 100-foot
intervals. Cross sections will also be obtained at low and high points. Cross -sections will be limited to
25 feet on either side of the existing centerline of the roadway (assumed 50 right-of-way). Cross -
sections will include elevations taken at the centerline, edges of pavement, top of curb, front and back
of sidewalk, bottom of swales (where applicable), and the approximate right-of-way lines. PBS&J will
also obtain grate and invert elevations on all existing drainage and sanitary structures in the roadways in
which drainage improvements are proposed. The City will assist PBS&J in cleaning debris within
structures if required for access. PBS&J will also set vertical control and benchmarks for construction
along the survey route. PBS&J will obtain all topographic data with electronic field books and prepare
base map drawings in AutoCAD 2000.
Task 2.1 Geotechnical Testing
The objective of the geotechnical investigation is to determine the hydraulic conductivity of soils in the
project area. For this purpose subsurface data will be collected by a geotechnical subcontractor
performing two constant head percolation tests. PBS&J will determine the exact location of the tests
in consultation with the City.
Boreholes will be a minimum depth of fifteen (15) feet below existing grade. Borehole procedures will
be in accordance with the South Florida Water Management District (SFWMD) and DERM
Standards. The borehole will be logged during boring to determine the soil/rock stratification. The
geotechnical subcontractor will also classify the soil/rock cuttings recovered during boring. A report
will summarize the test nomenclature, location, depth, test head, water intake measured at specified
intervals, and hydraulic conductivity calculated according to the SFWMD procedures. The borehole
will be backfilled upon completion.
TASK 3 — FINAL DESIGN
These improvements will be designed in accordance with the ASDSCDR. The ASDSCDR outlined
the conceptual length of exliltration trenches required to treat the 5-year 24 hour storm. The
ASDSCDR estimated that an additional 7,725 linear feet of french drain would be required to meet the
City's level of service requirements.
A stormwater collection system drainage analysis will be performed using topographic survey data, and
the hydraulic conductivity data from geotechnical inves ations. Any minor variations from the
ASDSCDR will be implemented as part of this task. Fre l'dau s;d tii��., manholes and inlets
Vie: L
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Mr. Manny Vega
September 12, 2003
Page 3 of S
will be incorporated into the design. The plan drawings will be prepared at 1" = 30' horizontal scale,
and profile sheets will be prepared at 1" = 3' vertical scale. All drawings will be developed in Autocad
2000i format. PBS&J will submit 50 percent and 90 percent complete drawings to the City in order to
solicit comments prior to finalizing these drawings. One week following the 50 percent and 90 percent
submittals, PBS&J will attend a meeting with the City to obtain comments on each submittal. PBS&J
will then develop final design drawings to be used by the City in constructing the improvements.
TASK 4 — STORMWATER PERMIT APPLICATION
PBS&J will use information from.the previous tasks to prepare the permit application on behalf of the
City to submit to Department of Environmental Resources Management (DERM), and South Florida
Water Management District (SFWMD), if necessary.
TASKS 5 — BID SPECIFICATIONS
PBS&J will prepare a portion of the bid specifications, consisting of the table of contents to the
specifications, the bid form and the special provisions, to solicit construction cost proposals from ,
contractors. These specifications will be written in accordance with the City's requirements. Any
additional requirements from local or state agencies will be incorporated, as needed.
TASK 6 —BID ASSISTANCE AND ENGINEERING SERVICES DURING CONSTRUCTION
PBS&J will attend on pre -bid conference, respond to pre -bid RF1's as required, prepare addenda, and
tabulate and evaluate bids.
It is assumed, herein, that the City will receive and log shop drawings and technical submittals required
to be submitted by the Construction Contractor. The City will then transmit these submittals to PBS&J
for review. PBS&J will review and return submittals to the City within ten working days of receipt.
The review will be in accordance with PBS&J specifications and for conformance with the design
concept and compliance with the Contract Documents.
PBS&J will visit the project at intervals appropriate to the various stages of construction to observe the
progress and quality of work. PBS&J will not provide daily inspection or construction oversight as
part of this proposal.
PPROVED
AS
fiJ 1'.
CNvandowiNTEWPROPOSALPluse00910031d]OC
Mr, Manny Vega
September 12, 2003
Page 4 of 5
SCHEDULE (EXHIBIT B)
Schedule
PBS&J is proposing the following schedule for this project:
Submittal Description
50% Design Submittal
50% Design Review Completed
90% Design Submittal
90% Design Review Completed
Final Design Submittal
Total Schedule
Approximate Completion
Date
December 22, 2003
January 5, 2004
February 16, 2004
February 23, 2004
March 8, 2004
* Dates are assuming a Notice to Proceed date of September 22, 2003
FEE
Approximate Duration
from Notice to Proceed
13 weeks
2 weeks
6 weeks
1 week
2 weeks
24 weeks
Fee
PBS&J is proposing a lump sum fee of $184,900 to complete this work (see attached table for
breakdown of fees).
APPROVED
AS.
DATE', 24,: ,. 03
C:.,RPOO9I0031.DOC
Mr. Manny Vega
September 12, 2003
Page 5 of 5
EXCLUSIONS
The following items are not included in this proposal:
• Inspection Services
• Construction Certification
• Environmental Assessments
We are ready to commence this work immediately upon your authorization. We appreciate the
opportunity to present this proposal and look forward to working with you. Should you have any
question, please contact me at (305) 514 - 3218.
Sincerely,
PBS&J
OaCE.
6
Program Manager
South Florida Environmental Program
APP L
DATE,
TECHNTCAL MEMORANDUM
To: Cesar Gonzalez and Manny Vega, City of Date: May 9, 2003
Miami Capital Improvements
From: Kenneth L. Caban, P.E., PBS&J CC: Patricia Carney, P.E., PBS&J
File: 01-1341.01 #3
RE: Avalon Stormwater Drainage System Conceptual Design Report Summary of
Alternatives
The Avalon project area is a developed residential area of approximately 310 acres located in the
City of Miami. It is bounded by SW 22"1 Street to the north, South Dixie Highway (US1) to the
south, SW 37th Avenue to the west and SW 32nd Avenue to the east. City staff reports frequent
flooding in the area.
The City prepared a CEP worksheet for the project which called for a pump station, exfiltration
trenches and a positive outfall. In July, 2002, the City contracted PBS&J to analyze this along
with two other alternatives, an all exfiltration trench system and drainage wells, to mitigate the
flooding problems in the area.
PBS&J developed conceptual designs based on available data provided by the City, and
conceptual cost estimates for said designs. The analysis indicated the most cost effective
solution was to provide exfiltration trenches, however, PBS&J and the City considered other
advantages and disadvantages to each of the three alternatives. The table below presents the
conceptual solution for each alternative and the conceptual cost estimate for each alternative, as
well as the advantages and disadvantages of each.
APPROVED
AS
BY:
DATE: 091 aqi°3
C:lwindows\TEMPlsurnmary Teohmemo,doo
Technical Memorandum to City ofMiami
September 12, 2003
Page 2 of 2
Alternatives Advantages and Disadvantages
Alternative
Cost
Summary of
Required
Improvements
Advantage
Disadvantage
I
Exfiltration
Trenches
$4,200,073
Provide 7,725
linear feet Of) of
exfiltration
trenches, and
assorted
appurtenances
1,170 if of 15"
solid corrugated
metal pipe
(CMP), 4,270 If
of 24" solid
CMP, and
13,165 if of
pavement
restoration.
1. Lowest Cost
2. Least Permits
3. Relatively
Simple
Modification
to Design
4. Groundwater
Recharge
Potential
5. Low
Operation
and
Maintenance
Costs
Compared to
Alternatives
II and III.
1. Can only provide the
Design Level of Service
2. Difficult to rehabilitate if
continuous maintenance
is neglected
II
Drainage
Wells
$6,257,460
Provide 117
catchbasins, and
associated
appurtenances
6,1051f of 15"
solid CMP,
12,395 if of 24"
solid CMP
18,500 if of
pavement
restoration
1. Second
Lowest Cost
2. Groundwater
Recharge
3. Less
Construction
impact
because of
reduced
excavation
depths
compared to
exfiltration
trenches
1. City staff reports poor
performance based on
prior installations
6
DATE'
Technical Memorandum to City of Miami
September 12, 2003
Page 3 of 3
Alternatives Advantages
and Disadvantages
Alternative
Cost
Summary of
Advantage
Disadvantage
Required
Improvements
III
$18,954,733
Provide 3,7401f
1. Faster disposal
1. Numerous permits
Overflow to
of exfiltration
of stormwater
required including:
Biscayne
Bay
trenches, and
associated
appurtenances,
1,1701f of 15"
runoff
2. Capable of
disposing a
larger storm
DERM, USACE,
SFWMD, MDPW,
FDOT
2, High operation and
solid CMP,
5,900 if of 24"
faster than
Alternatives I
maintenance costs
3. Dependent on
solid CMP,
5,9001f of 30"
and II
3. A higher level of
electric power
without an
solid CMP,
5,900 1fof 36"
service can be
achieved with
emergency generator
4. Requires significant
solid CMP,
8,5001E of 54"
force main, 350
less extensive
modifications to
the design
land
if of 54" outfall,
31,111 1f of
pavement
restoration
Therefore, PBS&7 recommends that Alternative I be implemented because of the costs and the
numerous advantages and disadvantages described in the above table.
PBS'
Project: City of Miami Avalon Area Stormwater System Phase II
PROFESSIONAL
LABOR
Project
, Manager
QA/QC
Engineer
Project
Engineer
Engineer 1
Drafting
Technician
Document
Technician
TOTAL HOURS
TOTAL COST
PER TASK
PER TASK
PER TASK
Rate ($/hr) Description
SI10.00
$125.00
590.00
$60.00
555.00
$38.50
Task 1
Project Meetings
16.0
23.0
23.0
8.0
70
3%
S 5,518.00
S 31,063.50
S 82,574.00
S 10,358.00
Task 2
Survey and Geotechnical Testing
4.0
110.0
100.0
260.0
11.0
485
23%
Task 3
Final Design
50.0
70.0
300.0
270.0
440.0
24.0
1154
54%
Task 4
Stormwater Permit Application
10.0
2.0
40.0
30.0
60.0
8.0
150
7%
Task 5
Bid Specifications
10.0
2.0
20.0
20.0
0.0
24.0
76
4%
S 5,274.00
Task 6
Shop Drawing Review
30.0
5.0
55.0
40.0
40.0
30.0
200
9%
$ 14,630.00
Total Hoare
120.0
79.0
548.0
483.9
800.0
105.0
2135
Sub -Total - Professional Labor
S13,200.00
_ S9,875.00
549,328.00
S28,980.00
S44,000.00
54,042.50
S 149,41750
% of Total Hours
6%
4%
26%
23%
37%
5%
%ofTotal Cost
9%
7%
33%
19%
29%
3%
Direct Expenses
Survey
Geotechnical Testing
Other Directs at 3%
Subtotal Direct Expenses
TOTAL
Say
o
S 30,000.00
$ 1,000.00
S 4,490.00
S 35,490.00
S 184,907.50
$ 184,900.00
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