HomeMy WebLinkAboutTrans 2007-06-11 Item 3B - Agreement - Pedestrian Bridge Design with KPFFTo: Mayor Mullet
From: Public Works Directo
Date: June 7, 2007
Subject: Pedestrian Bridge over Green River Proiect No. 05 -RWO3
Consultant Selection
ISSUE
Update Mayor and Transportation Committee on the design consultant selection process for the
Pedestrian Bridge project.
BACKGROUND
In late 2005, Tukwila received a $200,000 grant for design for the Pedestrian Bridge over Green
River from the Transportation Improvement Board's Statewide Enhancement fund. The
Pedestrian Bridge project was identified through the Comprehensive Plan Update completed in
2005 and the work being done for the TUC Subarea Plan as well as Sound Transit's Tukwila
Station project. The funds have already been obligated and are available for expenditure.
The grant funds are not adequate to fully design the project but they are enough to do what is
called a "Type, Size, and Location" report. This TS &L report is required of any bridge project
and is the first step in designing the right bridge. Additional funds from the TOD grant are being
made available for this project to ensure that planning and preliminary design work is done to
connect the TOD area, and specifically the Tukwila Station project, with the Pedestrian Bridge
and the rest of the TUC area.
ANALYSIS
In November 2006, four consultant teams were interviewed in a competitive process. The teams
interviewed were KPFF, Arai Jackson, HNTB, and ABKJ. The review panel was Cyndy
Knighton, Senior Engineer; Robin Tischmak, Senior Engineer; Jill Mosqueda, Development
Engineer; and Lynn Miranda, Senior Planner.
The four consultant teams were scored by the selection panel and the panel consistently ranked
the KPFF team as the top choice. Reference checks were performed with no negative feedback.
Since then, staff and consultant have been negotiating the scope and fee. The fee amount is in
excess of the $200,000 grant funds and the additional monies will be transferred from the TOD
grant.
The actual contract is not attached to this memorandum. It is the standard WSDOT LAG
Manual contract form and is quite lengthy. Only the scope and fee is included at this time as it is
most pertinent.
RECOMMENDATION
(p: cyndy\pedestrian bridge\information memo consultant selection 6- 7.07.doe)
INFORMATION MEMO
Attachment III.B.
Approve the selection of KPFF as the design team and forward the contract for $239,756,82 to
Council for approval.
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PROJECT DESCRIPTION
Exhibit A -1
Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge
Type, Size And Location (TSL) Bridge Report
The Green River stands as a barrier between the City's urban center and the transportation
hub of the Sounder Commuter Rail /Amtrak Station. This project is a preliminary step in
defining the pedestrian corridor connecting these commuter hubs. This project shall
determine the type of structure and its location for crossing the Green River. The bridge is
to be a signature piece of the corridor and along with the associated trail provide a direct,
safe and enjoyable walking experience.
PROJECT OBJECTIVES
The overall objective of this project is to develop a connection from the intersection of
Baker Boulevard and Christensen Road to the Sound Transit property line of the Sounder
Commuter Rail /Amtrak Station. This project will take place in three phases, which include
the following:
o Type, Size and Location (TSL) Phase
o Plans, Specifications and Cost Estimate (PSE) Phase
o Construction Management Phase
This scope of work shall be for the TSL Phase, which includes surveying, bridge type and
size, project aesthetics, civil and structural engineering, trail alignment studies and
definition of permitting requirements to enable the bridge TSL to be determined.
During and /or at the conclusion of the TSL Phase, the City of Tukwila can exercise the
option to supplement KPFF's contract to include the following tasks:
PSE Phase
o Completion of 30 60 90% and final plans
o Contract Specifications
o Cost Estimate
o Permitting
Construction Management Phase
Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 2
PROJECT TEAM
The project team is made up of the following firms:
Owner
Prime Consultant
Structural Engineering
Civil Engineering
Urban Planning
Surveying
Bridge Architecture
Environmental Services
Geotechnical Engineering
SCOPE OF WORK
The following is a scope of work for the TSL phase of the project. In addition to the basic
scope of services, the Consultant has included additional services that can be performed at
the City's request.
TASK No. 1.0 PROJECT MANAGEMENT AND ADMINISTRATION
Task No. 1.01 Project Schedule
City of Tukwila
KPFF Consulting Engineers
KPFF Consulting Engineers
KPFF Consulting Engineers
KPG Inc.
KPG Inc.
LMN Architects
Landau Associates
Landau Associates
A project design schedule shall be created in Microsoft Project that spans from the
notice -to- proceed to the completion of the TSL documents. The schedule shall be
updated on a monthly basis.
Task No. 1.02 Subconsultant Agreements
KPFF shall prepare subconsultant contracts for KPG, Inc., Landau Associates, and
LMN Architects.
Task No. 1.03 Progress Reports
A progress report form shall be provided to each subconsultant. This form shall be
filled out on a monthly basis and submitted with the invoice for the work described in
the progress report. KPFF shall then compile the reports into a single document to
be submitted to the City with the associated monthly invoice.
Task No. 1.04 Invoices
Subconsultants are to prepare monthly invoices for work completed. KPFF shall
compile the invoices into a single document to be submitted to the City.
Task No. 1.05 Team Meetings
The project team shall meet to discuss project issues, schedule, progress, and
general coordination of effort as needed.
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Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 3
Deliverables
Project work plan
Project schedule with monthly updates
Monthly progress reports and invoices
Team meetings
Participation in project meetings (Task No. 10 11)
Participation in one additional project meeting to be determined
TASK 2.0 DESIGN CRITERIA DOCUMENT
KPFF shall prepare the design criteria based on contributions from the project team:
Minimum bridge /trail widths.
Horizontal geometry constraints (including minimum radii for curves) and
allowable design speeds for bicycles.
Maximum allowable vertical grades and rates of curvature for both bridge
structures and for access ramps.
Emergency access requirements.
Minimum lighting requirements.
Green River hydraulic opening requirements.
Requirements for stormwater detention and water quality.
Construction criteria within 100 -year flood plain.
Utility clearance requirements.
Structural loading conditions.
Allowable structural deflections and vibrations.
Physical /aesthetic impacts on adjacent uses,
Coordination with potential future vehicular bridge in similar area.
Deliverables
Draft Design Criteria Document
Final Design Criteria Document
Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 4
TASK 3.0 TOPOGRAPHIC AND BOUNDARY SURVEY
KPG shall provide the field survey and mapping necessary to prepare a project base
map. Anticipated tasks for the project are summarized below:
Task No. 3.01 Aerial Basemap for Identifying Alternatives
KPG shall create aerial basemaps for identifying viable alternatives.
These basemaps will include City of Tukwila GIS information and King County
parcel information. The project area will include Andover Park East (west
boundary), BNSF /East City limit line (east boundary), Longacres Way (north
boundary) and Strander Boulevard (south boundary).
Task No. 3.02 Field Surveying Services
KPG shall perform topographic surveying within the entire project corridor, which is
defined as Andover Park East (west boundary) to the BNSF /East City limit line (east
boundary). Horizontal and vertical control shall be established that is necessary for
the boundary and topographic survey of the site. The survey for the defined project
corridor shall include all areas required for future pathway connections and bridge
location.
All field topographic surveying shall be performed to achieve 1 -foot contour interval
accuracy, and shall include location of existing 6 inches plus caliper trees, streets,
curb and gutter, limits of paving, fences, above- and below ground utilities, drainage
features, existing shrub and lawn areas, and existing improvements within the
defined project corridor.
A separate cost for private utility locating services has been included that assumes
16 hours of underground utility sensing and locating.
The field survey includes surveying the banks of the Green River from 50 feet
upstream to 50 feet downstream. The river survey shall include top of bank on both
sides of the river and cross sections from top of bank to top of water at 25 -foot
intervals. Indicate limits of 100 -year flood plain, ordinary high waterline (OHWL)
flagged in advance on the bank by Landau Associates.
The survey crew shall use City provided Horizontal and Vertical control in the
project vicinity and all surveying and mapping shall be based on City Horizontal and
Vertical Datum.
Task No. 3.03 CAD Base Mapping Services
A base map at a scale to be selected by the project engineer shall be developed
detailing the items located in the above described field survey. The map shall
include positions of record and surveyed boundaries, as well as deeded and platted
right -of -way margins for the project area.
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Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 5
It is proposes to use KPG's existing layer standards and point codes for the survey.
Once drafted, field verified, and certified, KPG shall provide the project engineer
with two Xerox Bond copies of the topographic survey and one digital copy of
project survey files (AutoCAD, point files, field notes). Any as -built information
gathered during our research shall also be copied and submitted to the engineer
with the topographic mapping package. The deliverable submittal package shall
include detailed descriptions of point code and layering schema.
Task No. 3.04 Project Management and Quality Control
KPG has included time and expense for project meetings, management of
surveying and drafting efforts, professional review and quality control in our
proposal.
Deliverables
Aerial Project base map (two hardcopies, one electronic copy)
Survey Corridor Project base map
TASK 4.0 GEOTECHNICAL RESEARCH AND RECOMMENDATIONS
Landau Associates shall perform geotechnical engineering. The work is to review
existing subsurface soil and groundwater information. The existing information shall be
used to establish a basis for providing geotechnical engineering recommendations for
the design and construction of the bridge and ramp facilities. If the existing information
is inadequate to develop geotechnical recommendations subsurface exploration and
laboratory testing can be performed as additional services per Task No. 4.02.
The geotechnical work includes the following:
Task No. 4.01 Review Available Geologic and Subsurface Information
Review previous geotechnical studies, geologic maps, soil surveys, and other
available geotechnical information regarding subsurface soil and groundwater
conditions in the vicinity of the project.
Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 6
Task No. 4.02 Subsurface Explorations and Laboratory Testing
Subsurface exploration or testing will by performed as an additional services if
requested by the City.
If existing information is not adequate for establishing geotechnical parameters and
recommendations, field exploration can be performed as an additional service.
Landau Associates would complete a boring to a maximum depth of 100 ft below
the existing ground surface to characterize soil and groundwater conditions at the
proposed bridge locations. The boring will be drilled on the west side of the Green
River on the existing trail using a truck mounted drill rig and the mud rotary method.
Disturbed and relatively undisturbed soil samples will be obtained from the boring
on a 21/2 or 5 ft depth interval.
A representative of Landau Associates will mark the exploration location in the field
and complete an underground utility locate "Call Before You Dig prior to the start
of work. Where underground utilities conflict with proposed exploration location, the
exploration will be relocated and a recheck of utilities will be conducted. We will
prepare and submit a work plan for review by the City to handle safety issues on the
trail during the subsurface investigation.
Assumptions:
All drilling subcontractors, equipment subcontractors, laboratories, traffic
control personnel and other related subcontractor personnel will be selected,
hired and paid by the Consultant.
Cuttings from the boring will be placed in drums and disposed of at an off
site location by the drilling subcontractor.
Soil sampling will be in accordance with ASTM D1586 (Standard Penetration
Test procedure), ASTM D3550 (Ring -lined Barrel Sampling of Soil), and
ASTM 1587 (Thin Walled Tube Sampling of Soil).
Concrete pavement coring is not included in our budget.
The location and elevation of the boring will not be surveyed as part of this
task. A drawing showing the approximate location of the boring will be
provided to KPFF so that the survey crews may pick up the location.
The boring is located in a paved area and will be patched with concrete.
Budget for analytical testing of suspected contaminated soil samples, or
disposal of potentially contaminated soil encountered during drilling, is not
included in this task.
Field exploration will be performed during the daylight hours.
Soil samples will be disposed of 90 days after the date of the final report.
Laboratory testing will be accomplished to help determine soil classification and
pertinent engineering properties of soil. We have budgeted for 15 index tests (dry
unit weight, grain -size, Atterberg limit) and 5 moisture content determinations on
selected samples from the borings.
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Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 7
Task No. 4.03 Provide Geotechnical Design Recommendations
The following recommendations are made from interpreting existing data only.
Deliverables
Describe anticipated site conditions based on available data and conditions
observed in the boring. A geologic description of the area shall be provided
based on published information and experience in the area.
Provide recommendations for earthwork and site preparation including
suitability of on -site soils for reuse in ramp fills, placement and compaction of
structural fill, and mitigation of unsuitable soil conditions.
Provide recommendations for retaining walls for the ramp fills, including
MSE walls, conventional concrete walls, geotextile walls, and others as
appropriate. This shall include anticipated allowable earth pressures, soil
friction, and footing support.
Evaluate the stability of the riverbanks and provide recommended
stabilization measures, if necessary.
Evaluate estimated settlement of ramp fills and recommend mitigation
measures, as appropriate.
Conceptual and feasible foundation types for the substructure of the new
bridge.
Geotechnical design criteria for the bridge, including seismic design
requirements and liquefaction hazard analysis (if applicable).
Constructability issues and concerns.
Draft Geotechnical Technical Memorandum (six hardcopies, one electronic copy)
Final Geotechnical Technical Memorandum (six hardcopies, one electronic copy)
Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 8
TASK 5.0 HYDRAULICS
The Corps of Engineers (COE) has recertified the Green River Levee. The
recertification is only for the west bank, so the 100 -year flood plain on the east side will
be estimated. The following is proposed for the hydraulic evaluation:
Task No. 5.01 Meet with Agencies
Meet with the Corps of Engineers and King County Surface Water Management to
obtain the best understanding of the ongoing studies and work along Green River.
Task No. 5.02 Establish 100 -year Floodplain
Based on existing COE data of the Green River, establish the current elevation of
the 100 -year floodplain.
Task No. 5.03 Establish Structural Clearance
Create a reasonably conservative margin above the floodplain level for all bridge
foundations.
Deliverables
Draft Hydraulic Technical Memorandum (six hardcopies, one electronic copy)
Final Hydraulic Technical Memorandum (six hardcopies, one electronic copy)
TASK 6.0 ENVIRONMENTAL SERVICES
Landau shall determine the required project permits, and document the processes and
timelines required for the anticipated permits. Landau shall also estimate the
boundaries of wetlands and shorelines on the project area and identify key
environmental issues. The project area will include Andover Park East (west
boundary), BNSF /East City limit line (east boundary), East Longacres Way (north
boundary), and Strander Boulevard (south boundary).
This work shall include the following:
Task No. 6.01 Data Collection
Collect available public domain information concerning wetlands, shorelines,
existing habitat data, soils surveys, species distribution data, and other pertinent
biological and historical /archeological information.
Task No. 6.02 Site Reconnaissance
Conduct a site reconnaissance to gain more specific understanding of the physical
and biological attributes of the project area. This reconnaissance shall be used to
better define the environmental permitting.
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Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 9
Task No. 6.03 Species, Habitat and Cultural /Historical Information
Obtain current species and habitat information from National Marine Fisheries
Service (NMFS), U.S. Fish and Wildlife Service (USFWS), and Washington
Department of Fish and Wildlife (WDFW) Priority Habitats and Species database,
and Washington Department of Natural Resources Heritage Data. Obtain list of
known cultural /historic sites from the State of Washington Department of
Archeology and Historic Preservation (DAHP). Review the City's draft Shoreline
Inventory and draft Shoreline Restoration Plan.
Task No. 6.04 Wetlands, Fish and Wildlife Habitat, Cultural /Historic Resources
Landau shall estimate the location of wetlands, fish and wildlife habitat, salmon
restoration sites, and cultural /historic resources in the project area using the
information from Tasks 6.01, 6.02, and 6.03.
Task No. 6.05 Environmental Permits and Environmental Documentation
Landau shall identify the permits and environmental documentation that is
anticipated for this project. A schedule for obtaining the identified permits and
completing the environmental documents shall be created. Opportunities to avoid
impacts and /or minimize impacts shall be evaluated during interaction with the
project team. A range of alternatives pursuant to and in the context of NEPA and
SEPA shall be developed along with their associated costs.
Deliverables
Draft Environmental Technical Memorandum (six hardcopies, one electronic
copy)
Final Environmental Technical Memorandum (six hardcopies, one electronic
copy)
Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 10
TASK 7.0 PROJECT WORKSHOPS
Task No. 7.01 Workshop No. 1 Identify Two to Three Viable Alternatives
KPFF with the assistance of the subconsultants shall hold a four -hour workshop
with City of Tukwila staff to discuss the trail alignment and bridge alternatives. In
preparation for the workshop, the following items will be addressed:
Bridge aesthetics options
Structural alternatives
Corridor alignment alternatives
Urban design themes
Aerial basemap
Permit requirements search
Basis of design documentation
Geotechnical memorandum
The topics for discussion during the workshop will include available right -of -way,
pedestrian and bicyclist experiences, construction costs, City property lines,
adjacent property lines, environmental considerations including wetlands, riparian
habitat, flood plains, topography, and trail geometrical constraints. A summary of
the workshop discussions shall be documented in the TSL report.
The goal of Workshop No. 1 is the selection of two to three bridge types and trail
alignments. These alternatives shall be further refined prior to Workshop No. 2.
Task No. 7.02 Workshop No. 2 Public Involvement
A public open house or one -on -one contacts will be used to provide project
information to and solicited input from affected property owners and the general
public. The project consultants will work with the City to develop the open house or
one -on -one contact format and materials.
Task No. 7.03 Workshop No. 3 Select Preferred Alternative
A third workshop shall be held with City staff to examine the cost/benefit of the
alternative designs. Trail alignments and bridge types shall be examined to
determine the best combination of alignment and type of structure. Drawings and
schematic renderings shall be prepared to assist in visualizing the various options.
Evaluation matrices shall be examined that rate the alternatives against the project
goals.
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Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 11
The end of Workshop No. 3 should leave the City with a reasonable idea of the
preferred alternative. The preferred alternative shall then be incorporated into the
TSL Report.
Deliverables
Workshop materials
Workshop meeting minutes (six hardcopies, one electronic copy)
Attending 3 workshops
TASK 8.0 CIVIL ENGINEERING
KPFF shall perform the civil engineering support work necessary to complete the
Design Criteria and TSL Report.
Task No. 8.01 Support for Pedestrian Trail Route Assessment
This work consists of assisting with the assessment and evaluation of the
pedestrian trail alignment concepts, including participation in the project meetings
described in Task No. 10 and 11.
Task No. 8.02 General Plans and Profiles
The Civil portion of the TSL report shall layout the preferred concept alignment
including general plan and profile of the bridge and street connection. Profile shall
be generated from terrain model information provided within Task 3. Drawings will
show essential clearances. Written descriptions of the alignment and associated
benefits and complications shall be integrated into the TSL Report.
Task No. 8.03 Concept Utility Relocation Plans
The Civil portion of the TSL report shall document the preferred concept alignment
and shall include concept utility relocation plans for all utilities shown and identified
within Task 3.
Task No. 8.04 Earthwork Assessment
The Civil work includes identifying all volumetric changes within the floodplain based
upon the preferred concept alignment. Cut and Fill boundaries will be shown on the
General Plan and Profiles, and Typical Sections will be shown on a separate plan.
Task No. 8.05 Stormwater Improvements
The Civil work includes identifying concept conveyance, treatment, and detention
systems for stormwater that would need to be constructed based upon the preferred
concept alignment. Stormwater facilities will be designed in accordance with the
current City guidelines.
Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 12
Task No. 8.06 Cost Estimate
The Civil work includes identifying quantities of proposed civil road and site work,
and assessing costs for said work for the preferred concept alignment. Costs shall
include other associated items such as administration, design and construction
management.
Deliverables
Participation in project meetings (Task No. 10 11)
Civil sections of the TSL Report
Stormwater conveyance and treatment concepts
Cost Estimate for civil components of preferred alternative
Assumptions
Traffic and Accident Data for SR 181 (West Valley Highway) and Christensen
Road will be provided by others.
TASK 9.0 STRUCTURAL ENGINEERING
KPFF shall perform the structural engineering work.
Task No. 9.01 Bridge Alternative Analysis
Once the trail alignment has been determined, the bridge alternatives shall be
developed. The member types and sizes shall be determined for discussion in the
workshops and inclusion in the TSL report. Conceptual level structural analysis
shall establish the member types and depth, railing types, types of foundations,
abutment types and sizes, depths of footings and estimated numbers of piles (if
piles are required). This work will be done in coordination with the work done under
Task 10.
Task No. 9.02 Bridge Cost Analysis
Cost Estimate: Program costs including administration, design and construction
costs shall be estimated for the proposed structures.
Funding Sources: As part of the bridge alternative analysis KPFF will assist the City
in completing the documentation necessary for seeking additional funding.
Task No. 9.03 Bridge Conceptual Drawings
Conceptual plan drawings shall show the plan, elevation and typical section for each
bridge alternative. The drawings will be supplemented as necessary to define any
unique features being implemented.
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Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 13
Task No. 9.04 Bridge Sections for TSL Report
The criteria, constraints and procedures used in determining the structural
alternatives will be included in the bridge sections of the TSL Report. Advantages
and disadvantages will be outlined for each alternative including cost and
constructability.
Deliverables
Bridge type alternatives
Participation in project meetings (Task No. 10 11)
Structural sections of the TSL Report
Bridge TSL drawings
Cost estimate for structural components
TASK 10.0 BRIDGE AESTHETICS COLLABORATION
LMN will be providing architectural collaboration through the project alternative analysis.
They will assist in creating conceptual bridge forms. LMN along with KPFF will prepare
computer generated renderings and /or hand drawings of a maximum of three preferred
aesthetic design concepts.
A four -hour bridge aesthetic meeting will be held to develop aesthetic design concepts
to be presented in Workshop No.1. These early conceptual designs will be used to
show the range of options and also stimulate ideas and discussion during the initial
workshop.
LMN shall create larger scale and more refined renderings of the project alternatives
being moved forward from Workshop No.1. These drawings will then be used during
Workshop No. 2 to inform the public of the alternatives being considered and during
Workshop No. 3 to assist in the preferred alternative selection. After the preferred
alternative is selected, LMN will create final renderings and one physical model.
LMN as an additional service to the City can produce renderings for more than the three
prescribed alternatives and can construct physical models for project alternatives in
addition to the preferred alternative.
Deliverables
Bridge altemative renderings (Assume 3 bridge renderings)
Physical model of preferred bridge alternative
Participation in project meetings (Task No. 10 11)
Participation in Workshop #1 and #3 (Task No. 7.01 7.03)
Architectural treatments
Cost estimate for architectural treatments
Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 14
TASK 11.0 —URBAN DESIGN AND WAYFINDING
KPG shall perform the work integrating this project with the Tukwila Urban Center
vision. KPG shall lead the urban design and trail alignment options through the project
alternative analysis. Urban design and trail alignment alternatives shall include the
following components:
Bridge Approaches
Wayfinding
Trail Alignment Alternatives
Landscape
Identify Pathway (Tukwila Urban Center) Character
Pedestrian Safety
Assist with Pathway Design Parameters
Identify adjacent roadway crossings at West Valley Highway and Christensen
A four -hour corridor project meeting will be held to develop conceptual ideas for the
urban design to be presented in Workshop No.1. These early conceptual designs will
be used to show the range of options and also stimulate ideas and discussion during
the initial workshop.
Deliverables
Alternative trail alignment renderings
Draft Technical Memorandum on evaluation of concept alignments
Final Technical Memorandum on evaluation of concept alignments
Participation in project meetings (Task No. 10 11)
Participation in Workshop #1 and #3 (Task No. 7.01 7.03)
Pathway sections
Urban design construction materials
Cost estimate for trail alignment alternatives
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Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 15
TASK 12.0 TYPE, SIZE AND LOCATION (TSL) REPORT
The TSL report shall describe the project, the proposed structure, and give reasons why
the bridge type, size, and location were selected.
The report shall include the following items:
Cover, Title Sheet, and Index
Executive Summary
Introduction
Project Description
Design Criteria
Conceptual Studies
o Aesthetics
o Site constraints
o Regulatory constraints
o Construction requirements
o Foundations
o Hydraulics
o Urban design
o Structure types
o Approach styles
o Maintenance
Project alternatives
Cost estimates
Appendices
o Photographs
o Workshop Meeting Minutes
o Technical Memorandums
Deliverables
Draft TSL Report (six hardcopies, one electronic copy)
Final TSL Report (six hardcopies, one electronic copy)
Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 16
SCHEDULE
It is anticipated that this proposed work should be completed by March 31, 2008.
ASSUMPTIONS
The scope of work for obtaining permits, right -of -way acquisition, right -of -way plans,
environmental assessment, and construction document preparation shall be proposed
and negotiated after the TSL phase of work is complete.
The City of Tukwila shall provide the following:
o AU support files including aerial contours, mapping, photography, and any GIS
information that is available for this project site.
o Current City Standard Plans.
TASK 13.0 PLANS, SPECIFICATIONS AND ESTIMATED COSTS (PSE) PHASE
The PSE Phase shall take the preferred alternative selected in the TSL Study through final
design and construction documentation. The PSE Phase will include the completion of the
design calculations, contract plans, contract specification and the engineer's estimated
construction costs. The scope and fee for this task will be determined at a later date.
TASK 14.0 GEOTECHNICAL ANALYSIS
This task will include the completion of all field exploration and laboratory testing needed to
finalize the geotechnical recommendations for the project. Tasks are expected to include
field borings, laboratory testing, and foundation type recommendations. The scope and fee
for this task will be determined at a later date.
TASK 15.0 HYDRAULIC AND SCOUR ANALYSIS
This task shall cover the investigation of the hydraulics and scour associated with
constructing a bridge over the Green River. This study involves performing a hydraulic
analysis, determining the bridge hydraulic opening, calculating scour depths, evaluating
abutment and bank protection measures, and preparing documentation to meet the needs
and requirements of the project. The scope and fee for this task will be determined at a
later date.
TASK 16.0 ENVIRONMENTAL SERVICES
Environmental services will include the finalization of the list of permits required for the
project and the completion of these permits. The scope and fee for this task will be
determined at a later date.
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Exhibit A Scope of Work
Tukwila Urban Center, Pedestrian /Bicycle Bridge TSL Bridge Report
Page 17
TASK 17.0 RIGHT -OF-WAY SERVICES
This task will include the preparation of right -of -way plans and legal descriptions. It is
assumed at this time that the City would determine property values and conduct land
acquisition negotiations, as necessary. The scope and fee for this task will be determined
at a later date.
TASK 18.0 LAND SURVEYING
The survey will include locations of utilities, surface features, drainage corridors, and
roadway and bridge features. The survey will also include locating test pits and borings and
any wetland delineations. The scope and fee for this task will be determined at a later date.
TASK 19.0 CONSTRUCTION SUPPORT SERVICES
The project team can provide construction support to the City as the project design is
completed and the project goes to advertisement and then construction. Tasks could
include attending preconstruction meetings, answering contractors' requests for information
(RFI), submittal review and site visits. The scope and fee for this task will be determined at
a later date.
Exhibit E -1
Consultant Fee Determination Summary Sheet
(Lump Sum, Cost Plus Fixed Fee, Cost Per Unit of Work)
Project: Tukwila Urban Center, Pedestrian/Bicycle Bridge Type, Size And Location (TSL) Bridge Report
Direct Salary Cost (DSC):
Classification Man Hours Rate Cost
Principal 72.0 X 56.00 4,032.00
Project Manager 232.0 X 50.00 11,600.00
Senior Engineer II 392.0 X 47.00 18,424.00
Design Engineer II 184.0 X 35.00 6,440.00
Project Coordinator 12.0 X 30.00 360.00
CAD Drafter 272.0 X 30.00 8,160.00
Administration 11.0 X 20.00 220.00
X
X
Total DSC 49,236.00
Overhead (OH Cost including Salary Additives):
OH Rate x DSC of 1.2827 x 49,236.00 63,155.02
Fixed Fee (FF):
FF Rate x DSC of 0.30 x 49,236.00 14,770.80
Reimbursables:
Itemized 500.00
Subconsultant Costs (See Exhibit G):
112,095.00
Grand Total 239,756.82
Prepared By: KPFF Date: June 5, 2007
DOT Form 140 -089 EF Exhibit E -1
Revised 6/05
2cf
30
Exhibit G -1
Subconsultant Fee Determination Summary Sheet
Project: Tukwila Urban Center, Pedestrian/Bicycle Bridge Type, Size And Location (TSL) Bridge Report
Direct Salary Cost (DSC):
Classification Man Hours Rate Cost
Senior Designer 51.0 X 60.10 3,065.10
Project Surveyor 4.0 X 43.75 175.00
Designer Surveyor 183.0 X 38.46 7,038.18
2 Man Survey Crew 40.0 X 67.30 2,692.00
Technician 210.0 X 19.23 4,038.30
X
X
X
X
Total DSC 17,008.58
Overhead (OH Cost including Salary Additives):
OH Rate x DSC of 1.5677 x 17,008.58 26,664.35
Fixed Fee (FF):
FF Rate x DSC of 0.35 x 17,008.58 5,953.00
Reimbursables:
Itemized 1,940.00
Grand Total 51,565.93
Prepared By: KPG Date: June 5, 2007
DOT Form 140-089 EF Exhibit G -1
Revised 6/05
Exhibit G -1
Subconsultant Fee Determination Summary Sheet
Project: Tukwila Urban Center, Pedestrian/Bicycle Bridge Type, Size And Location (TSL) Bridge Report
Direct Salary Cost (DSC):
Classification Man Hours Rate Cost
Senior Associate 18.0 X 48.00 864.00
Senior Project 36.0 X 32.00 1,152.00
Project 66.0 X 27.00 1,782.00
Assistant 20.0 X 18.00 360.00
CAD 10.0 X 26.00 260.00
Project Coordinator 13.0 X 22.00 286.00
X
X
X
Total DSC 4,704.00
Overhead (OH Cost including Salary Additives):
OH Rate x DSC of 2.1113 x 4,704.00 9,931.56
Fixed Fee (FF):
FF Rate x DSC of 0.30 x 4,704.00 1,411.20
Reimbursables:
Itemized 800.00
Grand Total
Prepared By: Landau Associates Date: June 5, 2007
DOT Form 140 -089 EF Exhibit G -1
Revised 6/05
16,846.76
3/
32
Fixed Fee (FF):
FF Rate x DSC of
Reimbursables:
Itemized
Exhibit G -1
Subconsultant Fee Determination Summary Sheet
Project: Tukwila Urban Center, Pedestrian/Bicycle Bridge Type, Size And Location (TSL) Bridge Report
Direct Salary Cost (DSC):
Classification Man Hours Rate Cost
Partner 21.0 X 258.77 5,434.17
Project Manager 31.0 X 122.92 3,810.52
Project Designer 55.0 X 116.45 6,404.75
Project Architect 134.0 X 103.51 13,870.34
Intern 200.0 X 61.46 12,292.00
Administration 12.0 X 80.87 970.44
X
X
X
Overhead (OH Cost including Salary Additives):
OH Rate x DSC of
Total DSC 42,782.22
x 42,782.22
x 42,782.22
Grand Total
Prepared By: LMN Architects Date: June 5, 2007
DOT Form 140 -069 EF Exhibit G -1
Revised 6/05
0.00
0.00
900.00
43,682.22