HomeMy WebLinkAboutUtilities 2008-10-20 Item 3A - Contract Supplement #6 - Interurban Avenue South Waterline Construction Management with Anchor Environmental
INFORlvIATION MEMO
To:
From:
Date:
Subject:
Mayor Haggerton
Public Works Directo~
October 16, 2008
Interurban Ave South Waterline
Project No. 04-WT02
Consultant Agreement 06-049, Supplement No.6
Construction Management Services
ISSUE
Approve Supplemental Agreement No.6 to Consultant Agreement Number 06-049.
BACKGROUND
Base contract No. 06-049 with Anchor Environmental, LLC of Seattle, W A included on-call
construction management (CM) services in support of any City-funded construction projects.
On September 3,2008, City Council approved the Interurban Ave S Waterline construction
contract with Gary Merlino Construction Company, Inc. This project will replace the existing forty-
year-old 12" cast iron waterline along Interurban Ave South from 4200 Ave S to 48th Ave S in front
of Shell Oil, Jack In the Box and Starbucks. To provide adequate CM and inspection support to
Public Works project staff, we solicited a proposal from Anchor Environmental.
ANALYSIS
Anchor Environmental has previously provided design review services for this construction project.
In addition, Anchor has the proper expertise and staff availability to provide eM and inspection
services. Supplemental Agreement No.6 was carefully reviewed and is reasonable in scope and
fees at $53,978.00.
The proposed budget under this project for Construction Management is $60,000.00 and Anchor's
supplement of $53,978.00 is well within budget.
RECOMMENDATION
Approve Supplemental Agreement No.6 with Anchor Environmental in the amount of $53,978.00.
Attachment: Supplemental Agreement No.6 to Consultant Agreement No. 06-049
P:\PROlECTSIA- WT ProjeclS\04WT02 ill Wat...line\Construction Phase\Anchor Environmental CM\Info Memo for CM ser.ices . Anchor. sup 6.doc
SUPPLEMENTAL AGREElVIENT NUl\'IDER SIX
TO
CONSIJL T A1~1 AGREElViENT i.rtJiviBER 06-049
TillS SUPPLEMENTAL AGREEMENT SIX is entered into between the City of Tukwila,
Washington, herein-after referred to as "the City", and Anchor Envirorunental L.L.C., Inc.,
hereinafter referred to as "the Consultant", in co~sideration of the mutual benefits, terms, and
conditions hereinafter specified.
The City desires to supplement the agreement entered into with the Consultant and executed on,
April 17, 2006 and identified as Agreement No. 06-049 and previously amended by supplements,
the most recent being Supplement No.5 dated March 11, 2008. All provisions in the basic
agreement and the previous supplements remain in effect except as expressly modified by this
new Supplement No.6.
The changes to the agreement are described as follows:
1. Scope of Services, is hereby changed to add to the general scope of services the specific
scope of services as outlined in Exhibit A-6.
2. Payment, shall be amended as follows: See attached Exhibit B-6.
Payment for the work provided by the Consultant as part of this supplement shall be
made as outlined in the agreement and the total amount of payment to the Consultant for
the work presented in this Supplement No.6 shall not exceed $53,978 without express
written modification of the Agreement signed by the City.
3. Time for Performance, shall be amended as follows:
No change to the basic agreement duration as amended by Supplement 5. Supplement Six
has an estimated duration of 90 calendar days.
DATED this
day of
, 2008.
Jim Haggerton,. Mayor
CONSULT~
BY:t:l ~~
CITY OF TUKWILA
Printed Name: Ed Berschinski
Title: Partner
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EXHIBIT A-6
City ofTukwila: Consultant Agreement No.06-049
Supplement No.6
Interurban Ave Waterline Replacement
Revised scope of work 10-09-08
Specific Scope of Work - Construction Management Services
The following represents the general scope of services to be performed by Anchor
Environmental L.L.C. (Anchor) during construction of the Interurban Ave. Waterline
Replacement proj ect. The services are divided into different categories of work that represent the
chronology of the activities as well as the types of services provided. This scope is intended to
reasonably address all construction-related services that would normally be anticipated for a
proj ect of this type.
Task 1 Pre-Construction Services
Subtask 1.1 Construction Document Review (No charge)
Scope
. Obtain from City and become familiar with bid documents (plans, specifications),
property owner agreements, and other information pertinent to the CM process.
. Hold kick off meeting for Anchor proj ect team.
Subtask 1.2 Pre-Construction Meeting
Scope
. Attend pre-construction meeting.
Subtask 1.3 Submittal Review
Scope
. Log and track contractor submittals (as outlined in specifications).
. Review con!!actor technical submittals (Le. shop drawings, catalogue cuts, work
plans, test reports and certifications). for general compliance with contract
requirements. General submittal requirements (Le. Schedule, wage rates) will be
routed as requested for review by City Water Dept. staff and/or City/Consultant
designers.
Sub task 1.4 Conditions Review
Scope
Task 2 Contract Administration Servic-es
Subtask 2.1 Planning
Scope
. Correspondence: Prepare draft response on behalf of City to all proj ect construction
correspondence requiring responses. Final formal correspondence will be issued by
City.-
. Status Reports: Prepare and transmit monthly invoices and status reports. Status
reports shall include project progress with respect to critical timelines, budget status
and identification of any issues that may affect schedule or budget.
Sub task 2.3 Progress Payments
. Payment: Prepare payment spreadsheet. Review monthly progress payment requests
submitted by the contractor. Provide measurements and verification of progress and
submit monthly application for payment to the City for processing. Payment to
Contractor will be issued by City.
Products
. Payment spreadsheet with signature page
Task 3 Field Observations/Inspections
Scope
Activities performed by field engineer/technician
. . Pre-construction conditions: Document pre-construction conditions, including pre-
construction construction site condition surveys, photographs, and record any visible
property comers.
.
_ Observation: Observe the technical conduct of the contractors work for quality
and compliance with design documents, approved submittals and/or applicable
technical standards. Prepare a daily inspection report and take progress
photographs.
_ Interpretations: Provide day to - day interpretation of contract requirements and
respond to contractors questions including resolution of minor issues.
- Testing: Perform or cause to be performed sampling and testing of materials to be
incorporated into the project. Witness leak testing performed by contractor and
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by City utility personnel.
- Measurements: Perform or cause to be performed field measurements to
determine excavation quantities, trench backfill and placement limits, etc. as well
as surveys or other measurements to verify pay requests and conformance with
project requirements.
Field Changes: Facilitate minor field changes to circumvent change orders due to
obstructions or other unanticipated conditions. Coordinate with design engineer
for any changes that may impact project cost or time. (See Task 4).
- Communications: Maintain primary day to day communications with the
contractor and keep the construction manager informed of activities. Receive
comment from neighboring property owners/tenants and the general public and
provide responses for questions and concerns.
- Check for contractor compliance with requirements for traffic control and notice
requirements with city and WSDOT when disconnecting loops.
- Participate in bi-weekly project meetings
Note: Assumes. a 90 calendar day construction contract duration. For budgeting purposes
the Anchor inspector is only expected to be on site for only about 40 working days and
averaging a 9 hour day. Additional inspection needs will be performed by the City of
Tukwila.
Products
. Inspection Daily Reports
. Field Sketches and Measuremerits
. Progress photos
Task 4 Construction Engineering/Change Orders
Scope
. Respond to questions related to site engineering.
. Evaluate contractor proposed revisions or substItutions.
. Change Orders: In coordination with the city design engineer, prepare calculations,
drawings, cost estimates and justification for change orders for approval by City. This
includes coordination with designer for input regarding technical acceptance of .'
design changes. Negotiate change orders with the contractor and incorporate fully
endorsed change order documents into the project. For this fee estimate we have
assumed up to four minor change orders @ 8 hours per C.O. for 32 hours.
Task 5 Site VisitslMeetings
Scope
. Up to two site visits by construction manager to review conditions in combination
with attending a bi-weekly coordination meeting with the contractor or separately to
review change order conditions.
Exclusions
Anchor shall assume no responsibility for proper construction techniques andjobsite safety. The
presence of Anchor personnel at the construction site is for the purpose of providing the City a
greater degree of confidence that the work will generally conform to the contract documents and
that the integrity of the design concept as reflected in the Contract Documents has been
implemented and preserved by the construction contractor. Anchor will endeavor to protect all
parties against defects and deficiencies in the work of the contractor(s) but cannot guarantee the
contractors performance and shall not be responsible for construction means, methods,
techniques, sequences of procedures, or for safety precautions and programs in connection with
the work performed by the construction contractor or any subcontractors.
Estimated Fee .
A detailed breakdown of labor and a fee estimates by task is provided in the accompanying
budget spreadsheet. Note that labor hour breakdowns by subtask are included in the spreadsheet.
However, we have only used the subtask designation to explain the basis for our budget
estimates, and have anticipated that we would track and bill costs at the Task level, not at the
subtask level.
We trust that this proposed scope and cost estimate is sufficient for your needs. If you have any
question regarding this scope, please do not hesitate to contact Ed Berschinski.
Exhibit B-6
Summa..ry of Costs
City of Tukwila
City Supplement Six
Interurban Ave. Water Main Replacement
Staff TVlle Rate Hours Total
Office
Senior Project Manager $63.1 0 59 $ -3,723
Project Assistant $20.48 20 $ 410
Total Rours 79
Total Labor (DSC) $ 4,133
Office OR @ 171.86% x DSC $ 7.1 02
Subtotal Office Labor $11,234
Fee @ 15% of Office Labor subtotal $ 1.685
Total Office Labor $12,919
Field
Senior Inspector $38.71 360 $13,936 .
Field OR @ 140.0% $19.510
Subtotal Field Labor $33,446
Fee @15% ofField Labor subtotal $ 5.017
Total Field Labor $38,463
Total Labor $ 51,382
Total Expenses $ 2,596
Total Project $ 53,978