HomeMy WebLinkAboutCOW 2010-11-22 Item 4D - Contract Supplement #11 - Tukwila Urban Center Access (Klickitat) Design with HNTB for $107,764 COUNCIL AGENDA SYNOPSIS
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CAS NUMBER. 10-135 I ORIGINAL AGENDA DATE: NOVEMBER 22, 2010
AGENDA ITEM TITLE Tukwila Urban Center Access (Klickitat) Project
Design Supplement No. 11 with HNTB
CATEGORY Discusston Motion 1 1 Resolution U Ordinance n BzdAward n Public Hearing 1 1 Other
Mtg Date 11/22/10 Mtg Date 12/06/10 Mtg Date Mtg Date Mtg Date Mtg Date Mtg Date
I SPONSOR 1 1 Council Mayor I 1 Adm Svcs 1 1 DCD 1 'Finance n Fire 1 'Legal P&R LI Police PlV
SPONSOR'S The design of the Tukwila Urban Center Access (Klickitat) Project has a number of
SUMMARY outstanding issues requiring this additional Supplement No. 11 with HNTB. This
supplement will design WSDOT's requirement of a monotube sign bridge on Southcenter
Parkway and design of a PSE and Qwest utility duct bank to avoid major utility conflicts.
Council is being asked to approve Supplement No. 11 for $107,764.00 with HNTB.
REVIEWED BY n COW Mtg. n CA &P Cmte 1 1 F &S Cmte Transportation Cmte
1 1 Utilities Cmte 1 Arts Comm. 1 1 Parks Comm. 1 Planning Comm.
DATE: 11/15/10
RECOMMENDATIONS:
SPONSOR /ADMIN. Public Works
COMMITTEE Unanimous Approval; Forward to Committee of the Whole
COST, IMP FUND S
EXPENDITURE REQUIRED AMOUNT BUDGETED APPROPRIATION REQUIRED
$107,764.00 $19,763,000.00
Fund Source: 104 ARTERIAL STREETS (PAGE 15, 2011 PROPOSED CIP)
Comments
MTG. DA I RECORD OF COUNCIL. ACTION
11/22/10
12/06/10
MTG. DATE ATTACHMENTS
11/22/10 Informational Memorandum dated 11/8/10
Project Schedule
HNTB Supplement No. 11
Minutes from the Transportation Committee meeting of 11/15/10
12/06/10
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City of Tukwila
b Jim Haggerton, Mayor
906 INFORMATIONAL MEMORANDUM
TO: Mayor Haggerton
Transportation Committee
FROM: Public Works Director 1
Ari
DATE: November 8, 2010
SUBJECT: Tukwila Urban Center Access (Klickitat) Proiect
Project No. 84 -RW19, Contract No. 05 -071
Supplemental Agreement No. 11
ISSUE
Approve HNTB Supplement No. 11 for additional design scope in order to meet WSDOT requirements and minor utility design adjustments
for the Tukwila Urban Center Access (Klickitat) Project.
BACKGROUND
The design of the Tukwila Urban Center Access Project halted at the 100% shelf -ready design in May of 2007. At the time it was shelved,
there were a number of outstanding issues requiring resolution before the project design efforts could resume. Those issues included:
WSDOT approvals, design of the buttonhook ramp, right of way (ROW) acquisition, property coordination and associated design efforts,
construction phasing and formation of the Local Improvement District.
Supplemental Agreements #8 and #9 were developed to complete the design based on the new WSDOT and Federal Highways
Administration (FHWA) requirements. Supplemental Agreement #10 was a simple time extension. Even after execution of Supplemental
Agreement #9, WSDOT continued to place new requirements on this project beyond the scope of work developed. After extensive
negotiations, WSDOT and FHWA have given the necessary approvals and permits allowing the project to go to ad, but with the understanding
that two late- emerging requirements would be completed concurrent with the ad period and early construction. The two requirements are to
design and construct a monotube sign bridge on Southcenter Parkway between the Nordstrom signal and Klickitat Drive and provide Public
Interest Findings (PIF) for the project file for materials which are either sole source or have less than 3 brand names identified.
Puget Sound Energy (PSE) and Qwest have a major shared utility duct bank on the east side of Southcenter Parkway, south of Strander
Boulevard, which is encased in concrete. Early coordination with PSE and Qwest was somewhat successful but as the project neared the ad
date of September 30, 2010, details on the utility duct bank were not provided to the design team in a timely manner. The Plans,
Specifications and Estimate (PS &E) documents for the project identified the potential major utility conflicts. Unfortunately there was
insufficient time to modify them prior to the September 30 ad date
DISCUSSION
Supplemental Agreement #11 includes design for the sign bridge on Southcenter Parkway and re- design for the storm drainage to avoid the
duct bank. Scope and budget is also included for the PIF's. WSDOT will need to review and approve the sign bridge design but will not be
reviewing or approving the rest of the work. The budget reflects the anticipated level of WSDOT coordination. Funding for Supplemental
Agreement #11 will come from the federal construction funds recently obligated The work will be issued as a change order to the contractor
Minimal impacts to the construction cost are anticipated
Phase Estimated Low Bidder 1 Fund Source Available
Supplemental Agreement #11 Design 107,764 107,764 Federal Grants 3,250,000
Construction (Engineer's Estimate) 15,365,000 10,880,180 TIB Grant 1 3,398,716
Contingency (10 %/20 Incentive ($250k) 1,786,500 2,426,036 1 City Funds 31,000
Construction Management (15 %120 2,304,750 1 2,176,036 j LID f 8,910,300
Total $19,564,014 $15,590,016 1 Total 1 $15,590,016
RECOMMENDATION
Approve Supplemental Agreement #11 with HNTB for final design and PS &E work in the amount of $107,764.00 and consider this item at the
November 22, 2010 Committee of the Whole meeting and subsequent December 6, 2010 Regular Meeting.
Attachments: Project Schedule
HNTB Supplemental Agreement #11
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IPW Eng1PROJECTSIA- RW RS Projects TUC Access (Klickitat)1INFORMATION MEMO Supplement #11 Sign Bridge, Utility Conflicts, PIFs 11- 8- 10.doc
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Tukwila Urban Center Access (Klickitat) Project Schedule
Done Date Description
5/7/07 Environmental Approval: ECS Accepted by FHWA
5/24/07 Design Substantial Completion: 100% Shelf -Ready Plans completed
7/16/09 Right -of -Way: Possession and Use Agreement from Legacy Partners
8/17/09 Transportation Committee: LID schedule and steps
8/24/09 Committee of the Whole: LID Schedule and Process
8/25/09 WSDOT ROW certification, limited access revision, channelization plans
8/28/09 Open House: For property owners, businesses and tenants
9/3/09 Open House: For property owners, businesses and tenants
9/4/09 Notification to Property Owners For Public Hearing on Resolution to Form LID
9/8/09 Transportation Committee: Resolution of Intent to Form LID
1 9/14/09 Committee of the Whole: Resolution of Intent to Form LID
9/21/09 Regular Council. Public Hearing Adoption of Resolution of Intent to Form LID 1
1 10/2/09 Notification to Property Owners For Public Hearing on Ordinance to Form LID I
10/5/09 Transportation Committee: Revised Resolution of Intent to Form LID
COW Regular Council. Public Hearing Adoption of Resolution of Intent to
10/26/09 Form LID (revised)
11/2/09 Transportation Committee: Revised Ordinance to Form LID
11/9/09 Committee of the Whole: Ordinance to Form LID
11/16/09 Regular Council: Public Hearing Adoption of Ordinance Forming LID #33
2/12/10 WSDOT: Submit for Channelization Plan approval
2/22/10 Right -of -Way: Recorded acquisition and easements from Doubletree Legacy
3/5/10 WSDOT: Comments on Channelization Plan
9/22/10 Finalize PS &E Documents
8/6/10 WSDOT: ROW Certification Process (Partially complete 7/8/10)
9/10/10 WSDOT: Channelization Plan Approval
9/13/10 WSDOT: Project Analysis (deviations) Approval Process
8/4/10 WSDOT: Updated Storm Water Report Approval Process (pending any design
changes made to gain Chan Plan approval)
9/22/10 WSDOT: 100% PS &E Approval Process
9/30/10 10/26/10 Advertise for Construction Bid: 3 week time period (required by federal funds) I I
11/4/10 Bids Due with Bid Opening
11/15/10- 11/22/10 Transportation Committee, City Council (C.O.W. and Regular): Award of Contract j
11/23/10 or later Notice to Proceed to successful bidder
Nov. -Dec. 2010 Pre construction work of project (no substantial roadway work included)
January 2011 Construction of project begins
November 2011 Completion of construction, roadway open to traffic
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Adak
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21 Department of Transportation
Organization and Address Phone
Supplemental Agreement
City of Tukwila
Number 11 Public Works Department
6300 Southcenter Blvd., Suite #100
Original Agreement Number Tukwila, WA 98188
05 -071 206 431 -3665
Project Number Execution Date Completion Date
84 -RW19 March 31, 2011
Project Title New Maximum Amount Payable
Klickitat/Southcenter Parkway Access $4,067,978
Improvement Project
Description of Work
Change Order Design Services
The Local Agency of Tukwila desires to supplement the agreement entered into with HNTB Corporation and
executed on April 6, 2005 and identified as Agreement No 05 -071 All provisions in the Agreement remain in
effect except as expressly modified by this supplement. The changes to the Agreement are described as follows
Section 11, SCOPE OF WORK, shall be amended as follows.
The scope of work for this project is supplemented as detailed in the attached Exhibit A, and by
this reference made part of the Agreement.
11
Section IV, TIME FOR BEGINNING AND COMPLETION, shall be amended as follows
All work under this Agreement shall be completed by the date shown in the heading of this
Supplemental Agreement Number 11 under Completion Date.
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Section V, PAYMENT, shall be amended as follows:
Compensation due to Consultant for work performed or services rendered for this project is
supplemented as detailed in the attached Exhibit B, and by this reference made part of this
Agreement.
Contract Document Amount Management Maximum Amount
Authorized Reserve Fund Payable
Original Agreement $1,168,322 $50,000 $1,218,322
Supplement No. 1 $1,956,680 $0 $3,175,002
Supplement No. 2 $17,200 $0 $3,192,202
Supplement No. 3 $0 $0 $3,192,202
Supplement No. 4 $14,759 $0 $3,206,961
Supplement No. 5 $63,350 $0 $3,270,311
Supplement No. 6 $4,500 $0 $3,274,811
Supplement No. 7 $4,200 $0 $3,279,011
Supplement No. 8 $147,387 $0 $3,426,398
Supplement No. 9 $533,816 $0 $3,960,214
Supplement No. 11 $107,764 $0 $4,067,978
TOTAL $4,017,978 $50,000 $4,067,978
Page 1 of 2
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If you concur with this Supplemental Agreement Number 11 and agree to the changes as stated above, please
sign in the appropriate spaces below and return to this office for final action.
By HNTB Corporation By: City of Tukwila
Daniel H. Dixon, Vice President Approving Authority Signature
Date Date
DOT Form 140 -063 EF
Revised 9/2005
Page 2 of 2
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Exhibit A
Scope of Work
Contract 05071
Klickitat /Southcenter Parkway
Urban Access Improvement Project
Supplemental Agreement No. 11
Change Order Design /Proprietary Item
Memorandums
September 2010
CrINTB
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Tukwila Urban Access Improvement Project
05 -071, Supplement No. 11 Page i
TABLE OF CONTENTS
I. INTRODUCTION 1
II. PROJECT SCHEDULE 1
III. WORK TASKS 1
TASK 22 SIGN BRIDGE 1
Task 22.1 Project Administration 1
Task 22.2 Illumination PS &E Revisions 2
Task 22.3 Sign Bridge PS &E 2
Task 22.4 Ductbank Preservation PS &E Revisions 3
Task 22.5 Miscellaneous PS &E Revisions 4
Task 22.6 Supplemental Geotechnical Memorandum 4
TASK 23 PROPRIETARY ITEM MEMOS 5
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05 -071, Supplement No. 11 Page 1
1 INTRODUCTION
This supplemental agreement includes the following services 1) determination of type, size and
location of a new sign bridge on Southcenter Parkway at the north button hook off ramp, 2)
redesign elements of the project to avoid conflict with the existing PSE and Qwest duct banks, 3)
preparation of revised drawings and specifications to the PS &E suitable for use as a change order
for the new sign bridge and duct bank redesign, and 4) preparation of Public Interest Findings/
Proprietary Item memos for Sole Source Items.
II. PROJECT SCHEDULE
The Project is on Advertisement as of September 30, 2010. Consultant shall begin services
included in this supplemental agreement upon notice -to- proceed from Agency. Consultant shall
submit the draft deliverables identified in tasks 22.2, 22.3, 22.4, 22.5, and 22.6 within three (3)
weeks after the notice to proceed is issued. It is anticipated that all services shall be complete by
January 10, 2010. If the schedule is extended due to reasons beyond the Consultant's control
(such as WSDOT reviews), it shall be considered Extra Work.
III. WORK TASKS
TASK 22 SIGN BRIDGE
Task 22.1 Project Administration
Subconsultant Management
Consultant shall prepare and execute subconsultant supplemental agreements.
Consultant shall provide direction to Subconsultants, including conducting project
coordination meetings as required with appropriate task leaders.
Budget Management Invoicing
Consultant shall actively manage, update, and control budget.
Consultant shall complete monthly Job Progress Input reports.
Consultant shall produce monthly invoices.
Communicate Progress
Consultant shall conduct ongoing, proactive, and responsive communications with
Agency staff involved in the direction and execution of the Project.
Consultant shall produce a monthly progress report to be submitted with the monthly
invoices.
Quality Management
Consultant shall conduct monthly quality assurance review meetings "Project Review
Meetings which shall include a review of the project status with the pnncipal -in-
charge, project manager, project administrator, and other key staff as required.
Consultant shall be responsible for checking and coordinating all design revisions and
computations, specifications, estimates, and other deliverables identified in this Scope of
Work.
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05 -071, Supplement No. 11 Page 2
Task 22.2 Illumination PS &E Revisions
Consultant shall revise the illumination PS &E to accommodate a new sign bridge at the north
button hook ramp. This task will include the following:
Relocate Pole 30.
Relocate power for lighting, sign lighting and ITS elements.
Coordination with Puget Sound Energy for revised loads if necessary.
Review lighting calculations with the AGI32 program to determine if continuous lighting
is maintained after modifying location of Pole 30.
Review and revise voltage drop and load calculations as required.
Design will be prepared to meet WSDOT standards as modified by the City of Tukwila,
NEC, IES standards.
Deliverables:
Revised Illumination Plans, Specifications and Estimate (electronic .pdf file format and
one (1) original stamped/signed 11" x 17" hard copy).
Task 22.3 Sign Bridge PS &E
Consultant shall prepare the PS &E for a new sign bridge that crosses over Southcenter Parkway
at approximate Station 19 +50.
At 90% design completion, Consultant shall submit the plans, specifications and structural
calculations to the Agency and WSDOT for review. Consultant shall address and incorporate the
review comments into the final Sign Bridge package. Consultant shall conduct one site visit and
identify potential utility conflicts and notify the Agency of findings.
The following new plan sheets will be nrenared:
Sign Bridge Layout (Elevation, Camber Diagram, General Notes)
Sign Bridge Details 1 (Structural steel)
Sign Bridge Details 2 (Structural steel)
Sign Bridge Foundation Details 1(Shaft)
Sign Bridge Foundations Details 2 (Miscellaneous shaft and details)
Assumptions:
The new sign bridge will span the entire width of southbound Southcenter Parkway and
will have two foundations, on the west side of Southcenter Parkway and another in the
proposed median of Southcenter Parkway.
The sign bridge will be mounted on a separate foundation and will not be mounted on
barrier. Sign bridge foundations will be drilled shafts "behind" traffic barriers and
guardrail such that integral foundation and traffic barrier details are not used
No additional field investigation shall be required
The sign bndge will be a WSDOT standard structural steel monotube sign structure
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05 -071, Supplement No 11 Page 3
o Sign bridge posts will be less than 30 feet tall
One round of review comments on 90% plans, specifications, and structural calculations
will be addressed to complete the final Change Order package
o The sign bridge will be designed per the WSDOT Bridge Design Manual (March 2010),
which uses the AASHTO Standard Specifications for the Design of Structural Supports
for Highway Signs, Luminaires and Traffic Signals. Fourth Edition dated 2001, with
Interims through 2006. Construction will be in accordance with the WSDOT Standard
Specifications for Road, Bridge and Municipal Construction (2010) and associated
WSDOT Special Provisions.
Deliverables:
90% Sign Bridge Plans, Specifications, and Estimate (electronic .pdf file format)
Breakdown of Lump Sum Quantities for sign structure (electronic .pdf file format)
o Sign structural calculations (electronic .pdf file format)
o Final Sign Bridge Plans, Specifications, and Estimate (electronic .pdf file format and one
(1) original stamped /signed 11" x 17" hard copy)
Task 22.4 Ductbank Preservation PS &E Revisions
Consultant shall revise the PS &E to avoid conflict with the PSE and Qwest duct banks and the
City -owned fiber optic line on Southcenter Parkway (Sta. 5 +00 to 8 +00). The Consultant shall
revise the PS &E to avoid the PSE duct bank at Strander Boulevard (Sta. 31 +90 to 33 +00) This
includes coordinating with the private utility companies, potholing and surveying at conflict
locations, updating the basemap, identifying the feasibility of redesigning elements to avoid
conflict with the duct banks, and revising the following design elements• drainage, roadway
grading, retaining wall, and associated specifications and estimate.
Once pothole data has been collected and analyzed, the Consultant shall analyze the PS &E
revisions assumed below for feasibility and cost effectiveness. Should the assumed PS &E
revisions not adequately address the utility conflicts, not be feasible or cost effective, work on
this scope item (22.4) will be stopped until the matter can be further discussed with the Agency.
Assumvtions:
Potholing and survey at up to five (5) areas.
The base map survey will be revised to show the actual PSE and Qwest duct bank width.
The feasibility analysis is limited to identifying the most cost effective approach to avoid
conflict with the PSE duct banks and make recommendations to the City.
Coordination will continue with PSE and Qwest.
Design revisions are limited to the following:
o Roadway grading revise roadway profile of Doubletree entrance to relocate low
point of curb returns to allow for moving drainage structures 38 and 39a.
o Drainage move drainage. structures 38 and 39a, add shallow inlets at structures
35 and 35a and relocate the CB Types 2's, move underdrain from Wall 4, move
structures 86, 87, 88 (stormwater vault), and 89.
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05 -071, Supplement No. 11 Page 4
o Retaining Wall 6 review and modify shoring specifications, if needed, for
construction of Wall 6 adjacent to the proposed stormwater vault and existing
PSE duct bank.
o Retaining Wall 5c footing will be revised to avoid conflict with the Qwest duct
bank.
Deliverables:
Drainage, Roadway Grading, and Wall Revised Plans, Specifications, and Estimate (electronic
.pdf file format and one (1) original stamped/signed 11" x 17" hard copy)
Task 22.5 Miscellaneous PS &E Revisions
Consultant shall revise the associated PS &E as needed to accommodate the effects of the
illumination and sign bridge design changes. This includes revising the following design
elements: realignment of median curb, roadway sections, signal conduit, drainage, temporary
erosion and sediment control, site preparation, landscaping, architectural treatments, and
associated specifications and estimate.
Assumptions:
Design revisions outside of the construction limits of the new sign bridge and associated
revised illumination is not included in this scope of work.
Deliverables:
Sign Bridge Miscellaneous Revised Plans, Specifications, and Estimate (electronic .pdf
file format and one (1) original stamped/signed 11" x 17" hard copy)
Task 22.6 Supplemental Geotechnical Memorandum
Consultant shall review the project geotechnical data and report, and prepare geotechnical
recommendations for the design of the new sign bridge foundations. This scope of work includes
the following tasks:
Review boring logs previously completed near the new sign bndge foundation locations
(GeoEngineers borings B -9 and B -10).
Based on the existing data, evaluate subsurface conditions and develop soil design
parameters for the sign bridge foundations.
Present recommendations in a supplemental memorandum.
Assumptions:
Geotechnical recommendations will be in accordance with Chapter 17 of the WSDOT
Geotechnical Design Manual (GDM issued January 2010)
Deliverables:
Supplemental Geotechnical Memorandum (electronic .pdf file format)
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05 -071, Supplement No. 11 Page 5
TASK 23 PROPRIETARY ITEM MEMOS
CONSULTANT shall prepare up to ten (10) Proprietary Item Memos to address the Public
Interest Finding (PIF) as required in the WSDOT Local City Guidelines (LAG) Manual Section
44.55. Consultant shall prepare Proprietary Item Memos for the items listed below; any
additional memos will be considered extra work and shall require a supplemental agreement.
Propnetary Item Memos will be prepared to address the following items:
o Clow Medallion hydrants
o Sherwin Williams Chrome Yellow Paint
o Electronic Ball Markers
o Bio- Barrier by Fiberweb
o PROSPECT Tree grates by Urban Accessones
o EAS -60 two part epoxy
o Pelco Spectra IV Television Cameras
o liens Video Detection System
o RZ -4 Advanced Video Detection Cameras
o Vantage LAM (Lens Adjustment Module)
Assumptions:
The Proprietary Item Memos will not require review and/or approval by WSDOT.
The Proprietary Item Memos will require one review by the Agency. Consultant shall
address one (1) round of consolidated review comments and shall submit a final memo
for inclusion in the Agency's Project file
Each Proprietary Item Memo will be hmited to two pages in length.
Deliverables:
One (1) draft and one (1) final Proprietary Item Memo for each of the following items
(electronic MS Word format):
o Clow Medallion hydrants
o Sherwin Williams Chrome Yellow Paint
o Electronic Ball Markers
o Bio Barrier by Fiberweb
o PROSPECT Tree grates by Urban Accessories
o EAS -60 two part epoxy
o Pelco Spectra IV Television Cameras
o Iteris Video Detection System
o RZ -4 Advanced Video Detection Cameras
o Vantage LAM (Lens Adjustment Module)
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HNTB Corporation
Consultant Fee Determination
Summary Sheet (Lump Sum)
Tukwila Urban Center Access Project: Klickitat/Southcenter Parkway
Supplement No. 11 Change Order Design /Proprietary Item Memos
LABOR COSTS
Staff Classification Hours Rate Total Cost
Principal 2 $277.52 $555
Project Manager 40 $226.36 $9,054
Sr. Structural Engineer 2 $191.79 $384
Sr. Architectural Manager 2 $183.38 $367
Senior Project Engineer 100 $170 60 $17,060
Project Engineer 28 $137.63 $3,854
Design Engineer /Traffic Engineer 110 $101.62 $11,178
Landscape Architect 4 $108.86 $435
Jr. Engineer /Jr. Landscape Architect 0 $73.54 $0
Sr. CAD Technician 2 $116.93 $234
CAD Technician 42 $101 85 $4,278
Sr Project Administrator 38 $119 37 $4,536
Sr. Administrative Assistant 9 $70.55 $635
Total Hours 379
i TOTAL LABOR COSTS $52,569!
REIMBURSEABLE COSTS
Local Travel (Mileage /Parking): $50
Reproduction: $200
Courier /Express Mail: $50
Other: $50
TOTAL REIMBURSEABLE COSTS $350
SUBCONSULTANT COSTS
1 HDR Engineering, Inc. $31,388!
1 PACE Engineers, Inc. $21,215!
1 GeoEngineers, Inc. $2,242!
1 TOTAL FEE $107,764!
05 -071, Supplement No. 11 HNTB Corporation
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WIEA y
City of Tukwila
u j? 2 Transportation Committee
TRANSPORTATION COMMITTEE
Meeting Minutes
November 15, 2010 5:00 p.m. Conference Room 1
PRESENT
Councilmembers. Verna Seal, Committee Chair Chair; Joan Hernandez and De'Sean Quinn
Staff: Bob Giberson, Frank Iriarte, Robin Tischmack, Gail Labanara, Pat Brodin, Cyndy Knighton,
Shawn Hunstock, Jack Pace, Steve Lancaster and Kimberly Matej
Guests: Brent Carson, Gordon Derr, LLP; and Shelia Malbrain, resident
CALL TO ORDER: The meeting was called to order at 4:58 p.m.
I. PRESENTATIONS
No presentations.
II. BUSINESS AGENDA
A. Tukwila Urban Center Access Klickitat) Proiect Bid Award
Staff is seeking Council approval to award a bid to Atkinson Construction in the amount of $10,880,180 for
the Tukwila Urban Center Access (Klickitat) Project. The intent of this project is to improve traffic flow by
constructing an underpass for the southbound lane on Southcenter Parkway. Out of seven submitted bids,
Atkinson Construction has been identified as the lowest responsible bidder. Both the Transportation
Improvement Board (TIB) and Washington State Department of Transportation (WSDOT) have reviewed
the bid tabulation and have authorized the City to proceed with the bid award.
A favorable bidding climate has resulted in a bid below the engineer's estimate, and as such, staff
recommends increasing the project contingency as well as estimated construction management costs. Even
with implementation of these staff recommendations, the bid award still totals almost $4 million less than
the engineer's estimate Any project cost savings will be reflected in the final costs of the LID as determined
and calculated after project completion and closeout. However, the favorable bidding climate also affects
the amount of the TIB grant funds received by the City. These awarded funds are not fixed monies and will
be reduced in relation to the low bid award; conversely, in the event of overruns, TIB grant funds will be
adjusted and /or increased as necessary.
Additionally, the City will be implementing an incentive clause in the construction contract which awards a
payment not to exceed $250,000 total for project completion in advance of the holiday moratorium which is
November 15, 2011 There will also be penalty assessments if the project is not complete within the
specified time period. UNANIMOUS APPROVAL. FORWARD TO NOVEMBER 22 COW FOR
DISCUSSION AND SPECIAL MEETING IMMEDIATELY FOLLOWING FOR APPROVAL AS
APPROPRIATE.
B. Tukwila Urban Center Access (Klickitatl. Supplement No. 11 with HNTB
Staff is seeking Council approval for Supplement No 11 with HNTB in the amount of $107,764. This
supplement will cover additional design changes required by WSDOT beyond the scope of work developed.
Specifically, this supplement addresses design for a sign bridge and re- design of a stoini drain to avoid
utility conflicts with a PSE utility duct bank and Qwest fiber optic lines. Funds for the supplement will be
taken from obligated federal construction funds. UNANIMOUS APPROVAL. FORWARD TO
NOVEMBER 22 COW FOR DISCUSSION
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