MA1009-CN120508
SCOPE OF SERVICES
Alex Drive Canal Rehabilitation Ph-2
Engineer
The agrees to render services necessary for the development and completion of the Project as
outlined herein.
The City is currently under contract to design erosion control and drainage improvements to Alex Canal
south of Parkway Blvd., and the Andrew Brown Central Activity Lake north of Parkway Blvd. The scope of
work described herein refers to Alex Canal north of Parkway Blvd. that connects those two projects. The
purpose of this project is to stabilize the banks with structural or non-structural methods, dredge the canal
edge to control aquatic vegetation, and maintain an aesthetic continuity through the park. The Basic
Services to be performed under this Contract include the following scope of work:
1. Project limits consist of both banks of the canal from Parkway Blvd to approximately 450 linear
feet north, to the concrete spillway.
2. Design wall improvements for both sides of the canal to match the selected methods and
materials used for the Alex Drive Canal Rehabilitation project.
3. Prepare construction drawings and specifications for up to two options to allow alternate
methods to be bid by contractors.
4. Provide construction administration services and structural inspection of walls.
BASIC SERVICES PART I:
CityEngineer
1. When requested by the , the shall attend preliminary conferences with authorized
City
representatives of the regarding the project and such other conferences as may be necessary in
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the opinion of the so that the plans and specifications which are to be developed hereunder by
Engineer,
the will result in providing facilities which are economical in design and conform to
City
instruction from the .
Engineer
2. The shall attend such conferences with officials of other agencies including other
City
engineering and/or surveying firms under contract with the , as may be necessary in the opinion of
City
the for coordination with the other agencies. It shall be the duty hereunder to secure
necessary information from such agencies.
Engineer City
3. The shall advise the with regard to the necessity for subcontract work such as special
surveys, tests, test borings, or other subsurface investigations in connection with design and
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engineering work to be performed hereunder. The shall also advise the concerning the
results of same. Such surveys, tests, and investigations shall be made only upon authorization by and
City
at the expense of the .
Engineer
4. The shall provide necessary design field surveys for use in the preparation of preliminary
and final plans and specifications.
Survey For Design: Provide detailed topographic survey along the project corridor. This will include
horizontal and vertical location of existing above ground features and visible utility appurtenances
throughout the length of the project corridor including, but not limited to, existing pavement
connections, sidewalks, trees, fences, water valves, fire hydrants and manholes. Flowlines of existing
culvert and storm drain outfalls will be shot and elevations provided. Survey limits will be from east
fenceline to the Aquatic center parking lot, and extend from Parkway Blvd to the upstream end of the
spillway.
(a) Establish control network utilizing GPS and City of Coppell published datum. Unless
otherwise required, horizontal datum will be NAD 83 and NAVD 88 for vertical datum.
(b) Perform field surveys to tie the horizontal and vertical locations of franchise utilities when
located close to proposed facilities.
(c) Establish vertical control benchmarks within the project limits on existing permanent
structures.
(d) Tie benchmarks to as-built plans for correlation of datum.
A. PRELIMINARY DESIGN
The Engineer will evaluate the concept improvements prepared for Alex Drive Canal Rehabilitation (south
of Parkway Blvd.), with modifications as appropriate for constructing new wall north of Parkway Blvd.
Engineer will recommend improvements based constructability, environmental permitting, construction
City
cost, and coordination with City staff, among other things. The shall select a base design and one
alternate design for Engineer to prepare construction plans to be used for contractor bidding.
Engineer
1. The shall then proceed with preparation of the preliminary design of the project
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incorporating all comments received from the and agreed upon by both the and the
Engineer
into these plans. Project design shall be in accordance with environmental standards
provided by the City, as well as known state and federal guidelines applicable to the project.
a. Prepare typical proposed wall cross sections.
b. Establish preliminary horizontal alignment for wall.
c. Establish preliminary vertical profiles for wall.
d. Show major features on plan sheets including edges of roadway, fences, sidewalks, trees,
and culverts.
e. Show existing storm system improvements.
f. Show known utility crossings and nearby adjacent utilities, and other topographic features as
record drawings.
Engineer
g. The shall supply the preliminary plans to all known utility companies, including
franchised utilities and pipeline companies which have known existing facilities within the
limits of the Project. One set of dated preliminary plans, and one set of dated and approved
advertising (final) plans shall also be submitted at the appropriate intervals.
Engineer
h. The shall provide detailed design data, profiles, cross-sections where appropriate,
opinions of probable cost, and furnish two (2) copies of detailed preliminary design plans for
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the project to the for review.
2. Prepare exhibit of design alternatives for a public meeting. Engineer is contracted to attend one
neighborhood meeting as part of the Alex Drive Canal Rehabilitation (south) project. Note: This task
item is limited to additional effort required as a result of expanding the project area to the north.
CityEngineer
3. After receipt of preliminary design review comments from the , the shall make all
corrections noted and then commence preparation of the final design plans and specification/contract
documents.
B. FINAL PLANS, SPECIFICATIONS, AND ESTIMATE (P S & E)
CityEngineer
1. Incorporating all review comments from the preliminary design submittal, the will
complete the final plans, prepare contract documents/specifications, and a final opinion of probable
cost for the authorized construction units. This shall include summaries of bid items and quantities,
Engineer
but the does not guarantee that Contractor bids will not vary from such opinion. Each of
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these items (2 copies each) shall be submitted to the for final approval.
a. Develop miscellaneous sheets such as Title Sheet, Horizontal Control Sheet, General Notes &
Quantities, and Standard Details.
b. Prepare Erosion Control Plan sheets (full size, 1:40 scale) for proposed improvements. The
successful bidder (contractor) will be required to supply and submit a formal SWPPP to the TCEQ
as owner and operator of the construction project.
c. Prepare traffic control and construction phasing plan for proposed improvements.
d. Provide typical retaining wall design cross sections.
e. Incorporate comments from the utility companies pertaining to the location of existing facilities and
organize a utility coordination meeting among all impacted utilities at City Hall.
f. Finalize Special Conditions, which will include Special Technical specifications.
g. Meet with City to develop final phasing of construction. City will notify the City of Coppell Police
and Fire Departments of all proposed construction phase traffic.
h. Complete quantity take-off and prepare final estimate of probable construction cost based on final
plans.
i. Prepare final bid documents including bid proposal forms, construction plans, specifications, and
contract documents.
City
2. After receipt of final plan/specifications/contract documents review comments from the , the
Engineer
shall make all corrections noted and then provide up to twelve (12) copies of contract
documents and final bid plans to Contractors bidding the Project. Contract documents shall contain
the Notice to Bidders, Proposal, Wage Rates, General and Special Provisions, Special Specifications,
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Insurance Statement, Payment, Performance, and Maintenance Bonds, and all other required
Contract forms.
3. The original drawings of all plans shall be plotted in ink on approved plastic film sheets, or as
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otherwise approved by the , and shall become the property of the . may use
Engineer
such drawings in any manner it desires provided the shall not be liable for the use of such
drawings for any project other than the project described herein.
C. CONSTRUCTION ADMINISTRATION
.
EngineerCity
1. The will assist the in the advertisement for bids--prepare Notice to Bidders for required
newspaper advertising --and place notice with Texas Contractor magazine and Dodge Report.
Engineer City.
2. The will attend a pre-bid meeting if deemed necessary by the
Engineer
3. The shall assist in the tabulation and review of all bids received for the construction of the
City
improvements, and shall make recommendations to the concerning these bids. At any time
Engineer
during the construction of this project, the shall advise on special review shop drawings
required of the Contractor by the Construction Contract(s). Such review shall be for general
conformance with the design concept and general compliance with the plans and specifications under
the Construction Contract(s).
CityEngineer
4. After selection of Contractor(s) and award of contract(s) by the , the will assist in the
preparation of contract documents, including contract, performance, payment, and maintenance
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bonds and all other related forms required to initiate construction on the project(s).
EngineerCity
5. will attend a pre-construction conference with staff, Contractor(s), and all affected utility
companies.
EngineerEngineer
6. will provide periodic field representation and will monitor construction progress as
deems necessary, including possible scheduled meetings with the project inspector and the
Engineer
Contractor(s) to discuss the construction progress. will provide required structural
inspection when notified at the appropriate time. It is estimated that up to four site visits will be made.
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A written status can be provided to the after each of these meetings if needed.
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7. will consult and advise the regarding the need for any contract change orders and will
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prepare change orders as required for approval.
Engineer
8. will be available for interpretation of plans and specifications as may be required by the
Contractor(s) in the field.
EngineerCity Inspector
9. The will, with assistance from the on the project(s), prepare and process
City.
monthly and final pay requests from the Contractor(s) to the
EngineerCity
10. will provide, in conjunction with the , a final inspection of the project and provide a
Engineer
11. will revise construction drawings as necessary to adequately reflect any revisions in the
construction from that which was represented on the plans and/or specifications.
Engineer City
12. will provide the with one (1) set o
after the completion of the project including updated digital CAD files of the new construction for use
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in the computerized mapping system.
BASIC SERVICES PART II: Environmental Services
1. Section 404 Permit Assessment
This task item will be performed in conjunction with the same task item of the Alex Drive Canal
Rehabilitation contract between TNP and the City. This task includes all work necessary to expand the
project limits north to contain the work of this contact. The work associated with this task item is
described as follows:
TNP will utilize Integrated Environmental Solutions, Inc. (IES) to provide professional services
regarding Section 404 permitting strategies. The permitting strategy will focus on utilizing Nationwide
Permit (NWP) 13 Bank Stabilization for the proposed project and identify ways to avoid or minimize
impacts so that there will not be any preconstruction notification to the USACE. If the project meets all
terms and conditions of the NWP 13, without requiring notification under General Condition 27, IES
will prepare a brief letter report presenting the delineation, describing the project and how it meets all
conditions of NAP 13.
2. Pre-Construction Notification under Nationwide Permit 13
This task item will be performed in conjunction with the same task item of the Alex Drive Canal
Rehabilitation contract between TNP and the City. This task includes all work necessary to expand the
project limits north to contain the work of this contact. The work associated with this task item is
described as follows:
If the proposed impacts exceed the allowed thresholds, a notification to the USACE is required prior to
construction of the proposed project. IES would detail the ecological function and values of the
Waters of the United States on the property, based on current conditions and other previous
documentation. The baseline conditions will be coordinated with the USACE, and upon approval, will
serve as the basis for evaluating proposed impacts and potential mitigation alternatives. Although this
project may only have minor impacts, the NWP submittal must detail the planning process and provide
compensatory mitigation for unavoidable impacts if necessary. All tasks will be assembled into the
Section 404 permit submittal to the USACE. After the permit is submitted to the USACE, additional
coordination may be required to finalize the requirements of the permitting process.
ASSUMPTIONS AND EXCLUSIONS:
The intent of this scope of services is to include only the services specifically listed herein and none
others. Assumptions and services specifically excluded from this scope of services include, but are not
necessarily limited to the items listed below. However, in the event the following tasks need to be
performed, the Consultant and City may mutually agree upon a scope/fee amendment to facilitate the
tasks:
Exclusions:
A. Providing a full-time on-site representative during construction.
B. Floodplain studies, map revisions, or reclamation plans.
C. Environmental impact statements, assessments, and 404 permitting.
D. FEMA submittals permits, or advertising.
E. Certification that work is in accordance with plans and specifications, beyond standard preparation
of record drawings described.
F.Environmental cleanup.
G.Trench safety designs.
H. Quality control and testing services during construction.
I. Services in connection with condemnation hearings.
J.Design of underground storm drain infrastructure system improvements.
K. Design of water and sanitary sewer lines.
L. Preparation of drainage area map and drainage calculations.
M. On-site safety precautions, programs and responsibility.
N. Consulting services by others not included in proposal.
O.Traffic engineering report or study.
P. Title searches, boundary surveys, or property surveys.
Q.Preparation of landscape plans or tree mitigation plans.
Assumptions:
A. This scope of work assumes this project will be part of a combined bid with the Alex Drive Canal
Rehabilitation project. If that is not the case, additional scope will be required to allow for the
preparation of separate plans, specifications, and bid documents. Additional environmental
permitting effort may also be required.
COMPENSATION
:
The maximum overall fee established herein shall not be exceeded without written authorization from the
City of Coppell, justified by increased scope of services.
The following is a summary of the estimated charges for the various elements of the proposed services:
Part I: Basic Services Fee
A. Engineering .......................................................................................... $ 29,000
B. Design Survey ....................................................................................... $ 8,500
Subtotal: ................ $ 37,500
Part II: Additional Services
A. Reimbursable Expenses (printing, as-built prep, etc) ............................... $ 800
B. Environmental Services ................................................. $ 2,500
Subtotal: .................. $ 3,200
Total Contracted Fee: ............... $ 40,800
PROJECT
LIMITS
PARKVIEW PL.
Alex Drive Canal
Rehabilitation Limits
¯
1 inch = 200 feet
ATTACHMENT E
0100200400
Feet