AECOM Technical Services, Inc.- SW Arterial Consultant Supplemental Agreement No. 19 Copyrighted
December 18, 2017
City of Dubuque Action Items # 7.
ITEM TITLE: AECOM Technical Services, Inc.-SW Arterial Consultant
Supplemental Agreement No. 19
SUMMARY: City Manager recommending authorization to execute a
supplemental agreement with AECOM Technical Services,
Inc., which approves revisions to the original scope of
services to the Consultant Professional Services Contract
to perform final engineering design to complete the 4-lane
construction of the Southwest Arterial Project, subject to
the concurrence of the lowa Department of Transportation.
RESOLUTION Approving the Consultant Professional
Services - Supplemental Agreement No. 19 between the
City of Dubuque and AECOM Technical Services, Inc. to
perform final engineering design to complete the 4-lane
construction of the Southwest Arterial Project
SUGGESTED DISPOSITION: Suggested Disposition: Receive and File; Adopt
Resolution(s)
ATTACHMENTS:
Description Type
Southwest Arterial Supplemental Agreement with Staff Memo
AECON�NNM Memo
Staff Memo Staff Memo
Resolution Resolutions
Supplemental Agreement#19 Supporting Documentation
THE CTTY OF Dubuque
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TO: The Honorable Mayor and City Council Members
FROM: Michael C. Van Milligen, City Manager
SUBJECT: Southwest Arterial Project
Consultant Professional Services-Supplemental Agreement
Final Engineering Design Phase — Scope of Work Modifications
lowa DOT Project No. STP-U-2100 (634)-70-31
DATE: December 11, 2017
Assistant City Engineer Bob Schiesl recommends City Council authorization for the City
Manager to execute a supplemental agreement with AECOM Technical Services, Inc.
which approves revisions to the original scope of services to the Consultant
Professional Services Contract to perform final engineering design to complete the
4-lane construction of the Southwest Arterial Project, subject to the concurrence of the
lowa Department of Transportation.
In continuing the strong collaborative partnership between the lowa Department of
Transportation (lowa DOT), DMATS, Dubuque County and the City of Dubuque, in June
2017, Mayor Buol presented before the lowa DOT Commissioners to provide an update
on the continued development and advancement that is occurring on the Southwest
Arterial project. Specific emphasis was made to encourage commissioners to consider
allocating the additional $17.4 million dollars to complete the remaining 4-lane
construction, the potential cost savings that could be realized now, while seizing the
opportunity and capitalizing on the investment that is currently underway.
In effort to keep the project development on schedule while preparing to incorporate the
remaining 4-lane construction phases should the additional funding be approved in the
upcoming (June 2018) lowa 5-Year Transportation Improvement Program, both the City
and the lowa DOT have agreed that AECOM should immediately proceed with
completing the final engineering design for the remaining (2) bridges and the remaining
2-lane paving.
Remaining Construction Estimated Cost Funding Anticipated
Year Bid Lettin
Bridge at Middle Interchange $ 2.1 Million FY 19 Sept / Oct 2018
EB Bridge over Catfish Creek $ 5.0 Million FY 19 Sept / Oct 2018
Pave Remaining EB 2-Lanes $ 9.0 Million FY 19 December 2018
Total Estimated Cost: $ 16.1 Million
With both the City and lowa DOT agreeing to allocate funding now to complete final
engineering design, this will allow the remaining 2 bridges and the remaining 2-lane
paving to be designed over the next 12 months. The lowa DOT already has $47 million
programmed for 7 bridges projects that will bid in December 2017. With allocating an
additional $7.1 million dollars in FY19 to construct the remaining 2 bridges, contractor
efficiencies will be realized with (7) other bridges under construction within the corridor,
thus correlating to very competitive bids and potential cost savings. The lowa DOT
already has $29.7 million dollars programmed in FY19 to begin highway paving. With
allocating an additional $9 million dollars in FY19 to construct the remaining east bound
2-lane highway paving, contractor efficiencies will be realized with combining all 4-Lane
paving projects together, thus correlating to very competitive bids and potential cost
savings.
I concur with the recommendation and respectfully request Mayor and City Council
approval.
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Mic ael C. Van Milligen �� �
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Attachment
cc: Crenna Brumwell, City Attorney
Teri Goodmann, Assistant City Manager
Cori Burbach, Assistant City Manager
Gus Psihoyos, City Engineer
Robert Schiesl Assistant City Engineer
2
THE CTTY OF Dubuque
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DUB E 'il��i;'
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2013 2017
TO: Michael C. Van Milligen, City Manager
Gus Psihoyos, City Engineer
FROM: Robert Schiesl, Assistant City Engineer
SUBJECT: Southwest Arterial Project
Consultant Professional Services - Supplemental Agreement
Final Engineering Design Phase - Scope of Work Modifications
lowa DOT Project No. STP-U-2100 (634)--70-31
DATE: December 13, 2017
INTRODUCTION
The enclosed resolution authorizes the City Manager to execute a supplemental
agreement with AECOM Technical Services, Inc. (AECOM) which approves revisions to
the original scope of services to the Consultant Professional Services Contract to
perform final engineering design to complete the 4-lane construction of the Southwest
Arterial Project.
BACKGROUND
On March 2, 2009, the City Council approved (Res. 87-09) the selection of AECOM
(Waterloo, lowa) to provide the final engineering design for the Southwest Arterial as a
"grade four lanes/pave two lanes" project.
Per the terms of the Consultant Professional Services contract and the conditional
requirements of the federal aid funding agreement, if the Consultant is directed to
perform work beyond the scope of said contract, which constitutes "Extra Work", the
Consultant shall prepare a Supplemental Agreement. Unless written approval for "Extra
Work" has been secured in advance of performing said work from the City, the lowa
DOT and the FHWA, said work will be ineligible for federal aid participation.
The Consultant Professional Services - Supplemental Agreement authorizes AECOM to
provide the revised scope of services to complete the final engineering design for the 4-
lane construction of the Southwest Arterial Project in accordance with lowa DOT and
FHWA procedures and requirements.
DISCUSSION
In continuing the strong collaborative partnership between the lowa Department of
Transportation (lowa DOT), DMATS, Dubuque County and the City of Dubuque, in June
2017, Mayor Buol presented before the lowa DOT Commissioners to provide an update
on the continued development and advancement that is occurring on the Southwest
Arterial project. Specific emphasis was made to encourage commissioners to consider
allocating the additional $17.4 million dollars to complete the remaining 4-lane
construction, the potential cost savings that could be realized now, while seizing the
opportunity and capitalizing on the investment that is currently underway.
In effort to keep the project development on schedule while preparing to incorporate the
remaining 4-lane construction phases should the additional funding be approved in the
upcoming (June 2018) lowa 5-Year Transportation Improvement Program, both the City
and the lowa DOT have agreed that AECOM should immediately proceed with
completing the final engineering design for the remaining (2) bridges and the remaining
2-lane paving.
Remaining Construction Estimated Cost Funding Anticipated
Year Bid Lettin
Bridge at Middle Interchange $ 2.1 Million FY 19 Sept / Oct 2018
EB Bridge over Catfish Creek $ 5.0 Million FY 19 Sept / Oct 2018
Pave Remaining EB 2-Lanes $ 9.0 Million FY 19 December 2018
Total Estimated Cost: $ 16.1 Million
With both the City and lowa DOT agreeing to allocate funding now to complete final
engineering design, this will allow the remaining 2 bridges and the remaining 2-lane
paving to be designed over the next 12 months. The lowa DOT already has $47 million
programmed for 7 bridges projects that will bid in December 2017. With allocating an
additional $7.1 million dollars in FY19 to construct the remaining 2 bridges, contractor
efficiencies will be realized with (7) other bridges under construction within the corridor,
thus correlating to very competitive bids and potential cost savings. The lowa DOT
already has $29.7 million dollars programmed in FY19 to begin highway paving. With
allocating an additional $9 million dollars in FY19 to construct the remaining east bound
2-lane highway paving, contractor efficiencies will be realized with combining all 4-Lane
paving projects together, thus correlating to very competitive bids and potential cost
savings.
SUPPLEMENTAL AGREEMENT
The Consultant Professional Services - Supplemental Agreement includes revisions to
the original scope of services to reflect the remaining anticipated level of effort required
to complete the final engineering design for the 4-lane construction of the Southwest
Arterial Project.
The original scope of services needs to be revised to reflect the following task
modifications:
• Design middle interchange between North Cascade Road and English Mill
Road.
• Design bridge over the Southwest Arterial for the North Cascade Road and
English Mill Road interchange.
• Prepare grading plans for the middle interchange North Cascade Road
connector.
• Prepare grading plans for the middle interchange English Mill Road
connector.
• Design Eastbound bridge over Catfish Creek
• Four-lane median barrier and drainage system between Catfish Creek and
U.S. 151/61 .
• Modify Southwest Arterial paving project from U.S. 20 Interchange to
Catfish Creek to include adding the eastbound lanes which will result in a
complete four-lane project.
• Modify Southwest Arterial paving project from Catfish Creek to Olde
Davenport Road to include adding the eastbound lanes which will result in a
complete four-lane project.
RECOMMENDATION
I recommend that the City Council authorize the City Manager to execute the Consultant
Professional Services - Supplemental Agreement with AECOM Technical Services, Inc.
to pertorm final engineering design to complete the 4-lane construction of the Southwest
Arterial Project, subject to the concurrence of the lowa Department of Transportation.
BUDGETIMPACT
The estimated professional services fee for the proposed final design and revisions to
the original scope of services is as follows:
Description Amount
Supplemental Agreement No. 19 - Scope of Services Revisions $ 1 ,177,580
Total Additional Project Cost "" S 1.177.580
"" Final authorized cost is subject to change based on the lowa DOT pre-audit
of Supplemental Agreement No. 19 which is currently underway.
The project funding summary is as follows:
CIP Fundinq Source Amount
3001287 City - DMATS STBG Funds $ 777,580
3001287 lowa DOT - Primary Road Funds 400,000
Project Funding 1.177.580
The City has agreed to allocate DMATS Federal STBG Funds and the lowa DOT has
committed Primary Road Funds towards the final engineering design costs to complete
the 4-lane construction plans. The state Primary Road Funds will also provide the
required federal match thus eliminating the need for a City or Dubuque County local
match.
ACTION TO BE TAKEN
The City Council is requested to authorize the City Manager to execute the Consultant
Professional Services - Supplemental Agreement with AECOM Technical Services, Inc.
to pertorm final engineering design to complete the 4-lane construction of the Southwest
Arterial Project, subject to the concurrence of the lowa Department of Transportation
through adoption of the enclosed resolution.
cc: Jenny Larson, Alexis Steger, Budget Office
Kent Ellis, lowa DOT
Doug Schindel, AECOM
F:\PROJECTS\SOUTHW EST ARTERIAL\CONTRACT-AECOM FE\SA#19
RESOLUTION NO. -17
RESOLUTION APPROVING THE CONSULTANT PROFESSIONAL SERVICES -
SUPPLEMENTAL AGREEMENT NO. 19 BETWEEN THE CITY OF DUBUQUE AND
AECOM TECHNICAL SERVICES, WC. TO PERFORM FINAL ENGINEERING
DESIGN TO COMPLETE THE 4-LANE CONSTRUCTION OF THE SOUTHWEST
ARTERIAL PROJECT
Whereas, the City of Dubuque is proceeding with the Southwest Arterial Project,
from U.S. Highway 20 to U.S. Highway 61/151 , in Dubuque, lowa; and
Whereas, in effort to keep the project development on schedule while preparing
to incorporate the remaining 4-lane construction phases should the additional funding
be approved in the upcoming lowa 5-Year Transportation Improvement Program, both
the City and the lowa DOT have agreed that AECOM should immediately proceed with
completing the final engineering design for the remaining (2) bridges and the remaining
2-lane paving; and
Whereas, the Consultant Professional Services - Supplemental Agreement No.
19 includes revisions to the original scope of services to reflect the remaining
anticipated level of effort required to complete the final engineering design for the 4-lane
construction of the Southwest Arterial Project.
NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY
OF DUBUQUE, IOWA:
Section 1 . That said Consultant Professional Services - Supplemental
Agreement No. 19 between the City of Dubuque and AECOM Technical Services, Inc.
to pertorm final engineering design to complete the 4-lane construction of the Southwest
Arterial Project is hereby approved, subject to the concurrence of the lowa Department
of Transportation.
Section 2. That the City Manager be authorized and directed to execute three
copies of said Consultant Professional Services - Supplemental Agreement No. 19 with
AECOM Technical Services, Inc. to pertorm final engineering design to complete the 4-
lane construction of the Southwest Arterial Project.
Passed, approved and adopted this 18th day of December 2017.
Roy D. Buol, Mayor
Attest:
Kevin Firnstahl, CMC, City Clerk
AECOM 319-232-6531 tel
501 Sycamore Street 319-232-0271 fax
Suite 222
Waterloo, Iowa 50703
www.aecom.com
IDOT Project No. STP-U-2100(634)--70-31
SOUTHWEST ARTERIAL
FROM SEIPPEL ROAD TO OLDE DAVENPORT ROAD
DUBUQUE, IOWA
SUPPLEMENTAL AGREEMENT NO. 19
WHEREAS, a Professional Services Agreement was entered into by the City of Dubuque, Iowa (Owner),
and AECOM Technical Services, Inc. (Consultant), of Waterloo, Iowa, dated May 8, 2009, for the
preparation of final design, plans, specifications and estimates, as well as right-of-way property
acquisition, final soils investigation, archaeological and cultural resources Phase III mitigation, public
involvement, agency coordination and construction-phase services for the Dubuque Southwest Arterial
which includes a new 4-lane freeway between Seippel Road and Olde Davenport Road in Dubuque,
Iowa, in accordance with the preliminary plans completed in March 2008; and
WHEREAS, the Owner and Consultant modified the original Scope of Services to include a Value
Engineering Workshop as part of Task No. 3 (Initial Value Engineering Review) in the original
agreement on July 27, 2009, said document included as Attachment C; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 1 dated August 27,
2009, for the preparation of final design, plan, specifications and estimates, right-of-way property
acquisition, final soils investigation, archaeological and cultural resources Phase III mitigation, public
involvement and agency coordination for the portion of the project not included in the previous
agreement; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 2 dated October 21,
2009, for supplemental Phase 1 archaeological investigation of the Oberbroeckling property in Dubuque
County, Iowa; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 3 dated March 10,
2010, to include revisions in the previous Scope of Services based on recent changes in the design
concept as a result of a Value Engineering Study of the project and the Owner’s desire to extend the
recreational trail beyond the previous limits; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 4 dated August 24,
2010, to include engineering services during the construction phase of the North Cascade Road portion
of the project; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 5 dated
September 27, 2010, to include revisions in the previous Scope of Services based on recent changes in
the design concept as a result of ongoing review and value engineering activities; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 6 dated October 19,
2010, to include construction staking for the North Cascade Road portion of the project; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 7 dated March 4,
2011, to include revisions in the previous Scope of Services based on recent changes in the design
concept as a result of ongoing review, the public informational meeting and value engineering activities;
and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 8 dated February 28,
2011, to include engineering services during construction phase of the North Cascade Road Bridge
portion of the project; and
Page 2
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 9 dated July 1, 2011,
to include roundabout intersection peer review and design revisions and the preparation of legal plats
and descriptions for temporary construction easements, and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 10 dated
September 12, 2011, to increase the hours for Construction Observation estimated for the North
Cascade Road Bridge portion of the project authorized in Supplemental Agreement No. 8; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 11 dated July 23,
2012, to amend the previous agreements to include design revisions that have been requested by the
City since the original Scope of Services was prepared and the shifting of certain activities among firms
on the Design Team; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 12 dated January 3,
2013, to modify the construction engineering scope for the North Cascade Road project; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 13 dated May 9,
2014, to add property acquisition services to the Scope of Services, which services will be completed by
JCG Land Services, Inc.; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 14 dated
November 20, 2014, to include additional design elements and other design revisions that were
requested by the City since the previous Scope of Services was prepared; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 15 dated
November 23, 2015, in the form of an updated Standard Consultant Contract to provide for additional
design services that were requested beyond the Scope of Services of previous agreements; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 16 dated May 26,
2016, to include additional design elements related to new storm water retention requirements that have
been requested by the City since the previous Scope of Services was prepared; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 17 dated
September 12, 2016, to include additional design elements that were requested by the City since the
previous Scope of Services was prepared; and
WHEREAS, the Owner and Consultant entered into Supplemental Agreement No. 18 dated April 18,
2017, to include additional design elements, including changes related to three-lane design of Seippel
Road west of the proposed US 20 interchange, modifications of bridges at US61/151 and over Granger
Creek from PPCB to CWPG bridges, separating the east grading project into two phases, and additional
design elements that have been requested by the City since the previous Scope of Services was
prepared.
WHEREAS, the Owner and Consultant now desire to amend the previous agreements to include
additional design elements modifying the previous design scope included in the grade four lanes/pave
two lanes project and add new services for the design of the Pave-Four Lanes Project.
NOW THEREFORE, it is mutually agreed to amend the original Professional Services Agreement as
follows:
I. SCOPE OF SERVICES/EXTRA WORK
The services to be provided for the project under this Agreement will include additional activities
that have been requested by the City and which are beyond the scope of the existing
agreements.
Page 3
The scope of services will include several activities to modify the previous design scope and
add new services to complete the remaining four-lane design elements for the complete “pave
four lanes” project. A portion of these services will be completed by WHKS, MSA, RDG and
Terracon, and are described elsewhere in this scope.
The major elements of the “pave four lanes” project include the following:
• New diamond interchange ramps west of N Cascade Road
• Removal of temporary at-grade connection grading west of N Cascade Road and
replacement with new road to overpass the SW Arterial
• New bridge over the SW Arterial for the N Cascade Road/English Mill Road
Interchange (by WHKS)
• Eastbound bridge over Catfish Creek
• Median barrier and drainage system between Catfish Creek and U.S. 151/61
• Removal of grading transitions designed at both ends of the project and replacement
with four-lane connections
• Paving of eastbound lanes between U.S. 20 and U.S. 151/61
Assuming a Notice to Proceed is provided, it is anticipated that the “pave four lanes” project will
include the following project packages:
• A bridge project for the bridge over the SW Arterial for the N Cascade Road/English
Mill Road Interchange, which will be completed by WHKS.
• A bridge project for the eastbound bridge over Catfish Creek.
• The current SW Arterial paving project from U.S. 20 Interchange to Catfish Creek
(NHSX-032-1(26)--3H-31) would be modified to include adding the eastbound lanes
and paving the English Mill and North Cascade Connector Roads, which will result in a
complete four-lane project. This modification will be accomplished either by
incorporating the pave four plans into the current set of grade four/pave two plans or by
providing a separate standalone set of plans for the paving of the eastbound lanes.
• The current SW Arterial paving project from Catfish Creek to Olde Davenport Road
(NHSX-032-1(43)--3H-31) would be modified to include adding the eastbound lanes,
which will result in a complete four-lane project. This modification will be accomplished
either by incorporating the pave four plans into the current set of grade four/pave two
plans or by providing a separate standalone set of plans for the paving of the
eastbound lanes.
The extent of these tasks is to complete a set of final construction plans which comply with
current design standards and specifications. Letting schedules for the paving projects are
anticipated to remain in the December 2018 letting while the remaining two bridge projects are
anticipated to be let in September or October of 2018.
Based on the timing of the Notice to Proceed, the tasks are broken out into the following three
task groups. For simplicity of this agreement, it is assumed that all of the final design tasks
noted under Task Group 2 will need to be completed if Task Group 3 is provided a Notice to
Proceed. Hours will not be incurred by the Consultant under Task Group 2 for providing two
sets of grade four/pave four plans if Task Group 3 is provided a Notice to Proceed. If Task
Group 3 is provided a Notice to Proceed, the final design work for Task Group 2 will still be
performed under Task Group 2, and an additional set of pave 2 eastbound plans will be
provided as part of Task Group 3.
Task Group 1. These tasks include work required to be completed to allow the project to
remain on the current schedule for the “pave four lanes” project. It is assumed the Notice to
Page 4
Proceed would be provided by April of 2018. The tasks included in this group include the final
design of eastbound bridge over Catfish Creek, final design of the bridge over the SW Arterial
for the N Cascade Road/English Mill Road Interchange and associated English Mill Road
Connection, and the preliminary design for the “pave four lanes” project. This work will be
authorized to proceed upon execution of Supplemental Agreement No. 19.
Task Group 2. These tasks include the additional effort required to complete a set of final
construction plans for the “pave four lanes” project, including the final design of the paving of
the eastbound lanes.
These tasks represent the additional activities required to produce a complete set of
construction plans for the “pave four lanes” project. It is assumed that this project will include
the elements described under the “grade four lanes/pave two lanes” project and that this new
design will complete the remaining elements to achieve a complete four-lane freeway from U.S.
20 to U.S. 151/61.
The tasks and associated hours in this task group include the work necessary to design the
“pave four lanes” project and incorporate the design into the “grade four/pave two lanes” project
currently under contract. Task Group 2 will require a Notice to Proceed by the Owner before
work proceeds.
Task Group 3. These tasks include the additional work required to complete a set of plans that
would include only the paving of the eastbound lanes for completion of the “pave four lanes”
project. Task Group 3 would require a Notice to Proceed by the Owner before work proceeds.
A. AECOM Scope of Services
The AECOM portion of the “pave four lanes” project includes the following tasks:
Task Group 1
Task 1 - Design of Eastbound Bridge Over Catfish Creek. This task includes the
design of a two-lane, five-span, 623’x40’ prestressed concrete beam bridge over
Catfish Creek in accordance with the previously-approved TS&L drawing for the bridge.
It is anticipated that the bridge will include standard Iowa DOT prestressed beams with
custom Tee piers and abutments, and that the railings and end treatments will be in
accordance with the conceptual enhancement drawings previously prepared by RDG
Planning and Design. Included in this task are updating the TS&L as needed, final
bridge design, bridge approach design, bridge end-drain design and guardrail design.
The eastbound bridge over Catfish Creek will not include a recreational trail crossing or
lighting. It will include beam staining.
a. Bridge Design
b. Bridge Approaches and End-Drain Design
c. Guardrail Design
Task 2 - Road Plan Set Preparation for Bridge Plans. This task consists of
miscellaneous tasks necessary to develop a set of road plans for the eastbound bridge
over Catfish Creek project which is not included in other tasks in this scope. This task
includes the following subtasks:
a. Typical Sections and Detail Sheets (B-Series Sheets)
b. Miscellaneous Tabulations and General Notes (C-Series Sheets)
c. Miscellaneous Sheets and Plan Assembly
Page 5
Task 3 - Box Culvert Designs. This task includes the design of a 6’ x 6’ RCB under
Ramp A and a 6’ x 6’ RCB under Ramp D of the N Cascade Road/English Mill Road
Interchange. TS&Ls will be developed and submitted to the Iowa DOT for approval.
The task also includes the 100% unapproved submittal and the final plan submittal to
be included with Project NHSX-032-1(26)--3H-31. The design will include plan sheets
for both precast and cast-in-place options.
Task 4 - Preliminary Design for “Pave Four Lanes” Project. This task consists of
preliminary design for paving the remaining eastbound lane roadway elements to result
in a complete four-lane project.
a. Preliminary Grading and Drainage Design for 4-Lane Construction (Typical
Section and Plan View Modifications)
• Modify Shoulder Grading for 4-Lane Construction
• Modify Transition and Bridge Areas
• Eliminate Turn Lanes at N Cascade Road Connector
• Alignment Modifications of N Cascade Road Connector
b. Preliminary Paving Design Plans for 4-Lane Construction
c. Preliminary Design of Median Barrier W est of Military Road to U.S. 151/61
d. Preliminary Median Drainage Structure Design
Task Group 2
Task 5 - Grading and Drainage Design for 4-Lane Construction. This task includes the
final grading and drainage design for new roadway elements and modifications to the
“grade four lanes/pave two lanes” project to accommodate the full four-lane paving
project. The design will include modifying the median-side shoulder to a 6’ width
modifying the grading near the bridge and the transition areas to accommodate the
four-lane paving and modifying the grading to eliminate the left-turn lane for the at-
grade intersection at N Cascade Road. The grading design for these elements will
include the geometric layouts and cross sections.
a. Modify Shoulder Grading for 4-Lane Construction
b. Modify Transition and Bridge Areas for 4-Lane Construction
c. Modify Grading to Eliminate Turn lanes at N Cascade Road Connector
d. Modify Grading of N Cascade Road Connector
Task 6 - Paving Design for 4-Lane Construction. This task consists of the final design
for paving the eastbound lane roadway elements to result in a complete four-lane
project. The final design includes the geometric design for the pavement, final profiles,
superelevation and transition areas, jointing pattern and details. Roadway elements
included in this task are the eastbound lanes and ramps at the N Cascade
Road/English Mill Road Interchange. Tabulations of pavement quantities are included
in this task. The pavement thickness design is not included in this task but will be
provided by Iowa DOT.
a. Eastbound Lanes
b. Add Paving for Four Ramps at N Cascade Road/English Mill Road Interchange
c. Tabulations and Quantities
Task 7 - Design of Median Barrier. This task includes the final design of a raised
concrete barrier median from a point west of Military Road to U.S. 151/61 in
accordance with the preliminary plans. It is anticipated that the barrier median will
consist of a standard “New Jersey” shape.
Page 6
Task 8 - Design of Median Drainage Structures. This task includes the final design of
storm intake structures and outlet pipes associated with the raised concrete median
barrier. The determination of intake types, spacing and construction details are
included in this task.
Task 9 - Signing and Pavement Markings Design. This task consists of the conceptual
and final design for roadway signing and pavement markings to accommodate the four-
lane paving project. New Type B signing will be included at the N Cascade
Road/English Mill Road Interchange, and the Type B signing at the U.S. 20 and U.S.
151/61 interchanges will be included to accommodate the four-lane traffic. Type A
standard signing will be provided for the remainder of the SW Arterial and will consist
of typical roadside signing (speed limits, curves, etc.) and roadside delineators.
Pavement markings are also included in this task.
a. Type B Signing for N Cascade Road/English Mill Road Interchange
b. Modify Type B Signing for U.S. 20 and U.S. 151/61 Interchange
c. Type A Signing and Pavement Markings
Task 10 - Lighting Design at N Cascade Road/English Mill Road Interchange. This
task consists of designing a standard lighting system at the N Cascade Road/English
Mill Road Interchange. It is anticipated that the lighting design will include standard
poles/luminaires at the roundabout intersections only, estimated to be approximately
eight units per intersection. It is not anticipated that the ramp terminals on the SW
Arterial, or any of the mainline or side roads, will be lighted. The lighting design will
include the lighting units, wiring and control cabinet. Lighting design will include conflict
locations per Iowa DOT policy and standards.
Task 11 - Subdrainage Design. This task includes the design of a subdrainage system
for the new eastbound lanes and the ramps at the N Cascade Road/English Mill Road
Interchange. It is anticipated that standard Iowa DOT bid items and details will be used
for the design.
Task 12 - Erosion Control Plans. This task includes the design of a temporary and final
erosion control plan for the four-lane paving project. The temporary erosion control
plan will address any previously-constructed areas disturbed by the construction and
will include the construction plan layout, details and standard bid items. The final
erosion control plan will include seeding of the disturbed areas.
Task 13 - Presentation Materials. This task includes preparation of drawings and
exhibits not required for the construction plan set but which may be requested by the
City for use in presentations or meetings. The extent of this task is represented by the
estimated staff-hours included in the appendix.
Task 14 - Construction Cost Estimate. This task includes preparation of an Engineer’s
Opinion of Probable Construction Cost based on typical bid prices at the time the
design is completed.
Task 15 - Quality Control Reviews. This task includes in-house quality control reviews
by senior professionals who have not been responsible for the original design. The
quality control reviews will be completed and documented before key submittals are
made to the City.
Task 16 - Submittals and Coordination. This task includes intermediate submittals as
required by Iowa DOT and associated coordination with the Iowa DOT, such as
exchange of information and responses to intermediate requests.
Page 7
Task 17 - N Cascade Road/English Mill Road Interchange Design Survey. This task
includes a field survey of the current as-constructed grading limits for the N Cascade
Road/English Mill Road Interchange to determine accurate earthwork volumes.
Task 18 - Construction Staging. This task includes developing staging plans to allow
bridge contractors access during 4-lane pave operations.
Task 19 - Additional Project Meetings and Coordination. This task includes the
additional meetings, conference calls, web meetings and other coordination associated
with the scope and schedule modifications in Task Group 2 of this supplemental
agreement.
Task 20 - Additional Project Administration. This task includes the additional in-house
administrative activities and project team coordination between consultants which are
associated with the revised Scope of Services and schedule modifications in Task
Group 2 of this supplemental agreement.
Task Group 3
Task 21 - Additional Plan Set Preparation for Stand-Alone Paving Plans for Eastbound
Lanes. The tasks shown below are associated with producing a stand-alone two-lane
(eastbound) paving plan set suitable for an Iowa DOT letting. The plan set will be
provided in both 11”x17” paper format, as well as the raw electronic CAD files that can
be manipulated by the Owner. The two-lane paving project will extend from the U.S. 20
interchange to the U.S. 61/151 interchange. To complete the stand-alone paving plan
set for eastbound lanes, final design work will be completed under Task Group 2. The
tasks below include the additional work that is needed to produce a separate
standalone Pave 2 eastbound lane project. It is assumed the westbound lanes are
under head-to-head traffic as a result of the Grade 4/Pave 2 projects:
a. Typical Sections and Details (B-Series Sheets). This task includes the
additional time to create an additional set of B-Sheets for the paving project.
The typical cross sections will indicate two eastbound lanes of paving.
b. Tabulations and Quantities (C-Series Sheets). This task includes the
additional time to develop quantities and tabulations for the two-lane paving
project. This task includes the measurement and calculations for quantities
needed for the two eastbound lanes of paving. Also included in this task is the
tabulation work for the stand-alone paving plans for the eastbound lanes.
c. Signing and Pavement Markings. Develop quantity notes and signing plans
that modify the existing pavement markings and signing on the westbound
lanes for future westbound traffic. Pavement marking removal quantities, sign
removals and new signing on westbound lanes is part of this task.
d. Construction Staging. Prepare staging plan for the stand-alone pave two lanes
project. Paving of the eastbound lanes will be completed while traffic is on the
westbound lanes. Additional staging notes and details will be included for the
N Cascade Connector Road.
e. Submittals. This task includes submittals to the Owner for the two-lane paving
project.
Page 8
B. WHKS Scope of Services - Task Group 1
The work to be completed under this supplemental agreement will include design for
paving the connector road between North Cascade Road and English Mill Road and
the N Cascade Road/English Mill Road Interchange Bridge over the Southwest Arterial.
The scope of services is modified to include the following tasks, which were not
included in the original scope or previous supplemental agreements.
English Mill - North Cascade Connector Road Tasks
WHKS is already under contract to complete the design, preparation of the grading
construction plan set and engineer’s opinion of construction costs from Sta. 1500+00 to
Sta. 1532+50. Starting with the preliminary design work initiated by AECOM, the work
tasks in this supplement will extend the grading design approximately from
Sta. 1532+50 to Sta. 1565+48 and complete the paving design approximately from Sta.
1500+00 to Sta. 1565+48. AECOM will design the interchange ramps up to the
locations where the ramp typical sections begin to vary for the roundabout geometry. It
is assumed that this work will produce construction plans that will not be let
independently of other SW Arterial construction packages, and that AECOM will
integrate plan sheets, details, tabulations, notes and quantities related to the work
designed by WHKS, into NHSX-032-1(26)--3H-31, a grading and paving set of plans
anticipated to be scheduled for letting in December 2018.
The final plans will be prepared on 11"x17" sheets at a scale of 1"=200'. The following
work tasks will be required:
Task 1 - Typical Sections and Details (B-Series Sheets). Typical cross sections and
road design details will be developed in accordance with Iowa DOT standards for the
Connector Road and the roundabouts. The typical sections will include pavement
typical section details.
Task 2 - Bid Items and General Notes (C-Series Sheets). Plan sheets will be prepared
to include the following:
1) Bid Item and Quantity Listing
2) Estimate Reference Information
3) General Notes
4) AECOM to integrate Bid Items and Notes into the plans
Grading and paving bid items and general notes will be developed by this supplement.
Task 3 - Tabulations and Quantities (C-Series Sheets). Detailed tabulations will
include the additional grading and paving bid items in accordance with Iowa DOT
standards. Final bid quantities will be calculated and tabulated. AECOM will integrate
WHKS Tabulations and Quantities into the plans. Terracon to provide the CS sheet for
the project. WHKS will provide the edge drain design layout and tabulation.
Task 4 - Plan and Profile Sheets (D-, E-, F and - K-Series Sheets). This task consists
of preparing the final plan and profile sheets (E sheets) for the paving from Sta.
1500+00 to Sta. 1532+50 and also includes the grading and paving for the roadway
segment from Sta. 1532+50 to Sta. 1565+48. No D, F or K sheets are anticipated. D
and K sheets will be developed by AECOM.
Page 9
Task 5 - Geometric Layout Sheets (G-Series Sheets). This task includes the
geometric layout sheets, including centerline layouts and tabulations of geometric curve
data and superelevation data. The alignment over the SW Arterial will be based on the
TS&L developed by AECOM. Detailed geometric data for the two ramp roundabouts
will be developed in plan view and tabulations.
Task 6 - Intersection Details (L-Series Sheets). This task includes preparation of
detailed final intersection plans, including:
1) Two (2) roundabout ramp intersections
2) English Mill Road Intersection
Jointing, edge profiles and staking details will be developed for the project.
Task 7 - Drainage and Culvert Design - (M-Series Sheets). This task includes the final;
design of the storm sewer systems at the roundabouts and tabulation of crossroad pipe
culvert drainage structures. The final drainage area maps and 1"=20' scale layouts for
each culvert are included in this Scope. The following subtasks are included:
1) Crossroad Pipe Culvert Design, Pink Sheets, and Culvert Plats-Assume two
(2) culverts
2) Storm Sewer System design at each of the two roundabouts
3) Tabulation of “Drainage Structures by Road Contractor”
4) Tabulation of Storm Sewers
5) Entrance pipe design
It is assumed that no water or sanitary sewer design will be included. Conduit will be
placed along connector road between N Cascade and English Mill, and across bridge.
Task 8 - Soils Sheets (Q-Series Sheets). The soil profile base sheets (Q-series
sheets) from Sta. 1532+50 to Sta. 1565+48 will be developed by WHKS and completed
by Terracon Consultants. The calculation and tabulation of storage for ditches, silt
basins and erosion control.
Task 9 - Sidewalk Sheets (S-Series Sheets). The sidewalk sheets (S-series sheets)
will be developed for the project at transition or crossing locations to accommodate for
future bike/pedestrian trail.
Task 10 - Soils and Earthwork Design (T-Series Sheets). This task includes the final
determination of earthwork quantities and design requirements, including cut and fill
volumes from Sta. 1532+50 to Sta. 1565+48. The geotechnical design for this project
will be completed by Terracon Consultants. The tabulation of earthwork quantities is
included in this task. It is assumed that the existing ground model will be provided to
WHKS by AECOM. AECOM will incorporate the WHKS design volumes into the final T
sheets for the project and generate the subgrade models for the contractor’s use
during bidding and construction.
Task 11 - Detail Sheets (U-Series Sheets). It is anticipated that two (2) U- sheets will
be developed by WHKS to detail the paved, raised medians associated with the
roundabouts.
Task 12 - Cross Section Sheets. Cross sections sheets will be designed and
developed for all affected roadways. Create the Geopak design model in compliance
with IDOT requirements for the use of Corridor Modeler.
Page 10
Design and Removal of Erosion Control
This task consists of the design and review of the appropriate type of temporary
sediment control devices to be used for storm water retention, the storage calculations,
and the quantities for all items and tabulations. Design is required for drainage basins
and silt basins. Silt basins will be required for storm water detention to meet the
storage requirements. Earthwork will need to be calculated and tabulated for filling the
temporary silt basins.
SW Arterial Bridge Tasks
English Mill Road/North Cascade Road Connector over SWA Bridge. This bridge will
be a non-skewed, two-span PPCB bridge as detailed in the AECOM TSL dated June,
2011. The TSL MicroStation file will be provided to WHKS by AECOM. Aesthetics will
be similar to the aesthetics on English Mill Road in accordance with the conceptual
enhancement drawings previously prepared by RDG Planning and Design. The
abutment foundations will be founded on H-piles and the pier footing will be founded on
H-piles or spread footings. Work tasks include:
1) The TSL will be reviewed by WHKS with minor updates included in this task.
Revise bridge configuration/geometry.
2) Prepare and submit new TS&L.
3) Design and prepare plans for 40’ wide, 2 span PPCB bridge.
Miscellaneous Task Items
1) Project Administration/Project Management.
2) Quality Assurance/Quality Control.
3) Bi-weekly meetings and attending PMT meetings.
4) Coordination with MSA (formerly Ourston Roundabouts) for additional
roundabout documentation and advanced signage for the roundabouts.
5) Coordination with AECOM for the exchange of plans and plan data for the
development of the letting set.
6) Cost estimates and quantities updates.
C. Terracon Scope of Services - Task Group 1
The tasks for Terracon include additional work required for the addition of the North
Cascade Road Interchange Bridge, the eastbound bridge over Catfish Creek and for
box culverts under Ramps A and D of the North Cascade Road Interchange as
described below:
Item Description
Location Southwest Arterial at the proposed North Cascade Connector Road
Interchange (Section 4, Table Mound Township) and Southwest
Arterial over Catfish Creek (Sections 2 and 3, Table Mound
Township) in Dubuque, Iowa.
Page 11
Proposed
structures
The project will include the construction of the following new
bridges:
N Cascade Road/English Mill Road Interchange over
Southwest Arterial will be a two-span, 242-foot prestressed
concrete beam bridge.
Eastbound Southwest Arterial over Catfish Creek will be a five-
span, 623- foot prestressed BTD beam bridge.
The project will also include two reinforced box culverts, one on
Ramp “A” and one on Ramp “D” of the N Cascade Road/English
Mill Road Interchange. We understand that TS&Ls are not yet
available for these culverts. For purposes of our proposal, we
have considered both culverts to be on the order of 6-foot by 6-foot
by 300-foot long boxes.
Foundations
We anticipate the N Cascade Road/English Mill Road
Interchange Bridge will be supported on driven steel piles
extending to bedrock.
We anticipate the Eastbound Southwest Arterial Bridge will be
supported by steel piles driven to bedrock at the abutments
and piers 2 and 3. At piers 1 and 4, the bridge may be
supported on spread footings bearing on limestone bedrock.
Grading
The N Cascade Road/English Mill Road Interchange Bridge
will have fills of about 20 to 35 feet at the abutments.
The Eastbound Southwest Arterial Bridge will have fills of
about 5 to 20 feet at the abutments.
We have considered fills on the order of 30 feet for the box
culverts on Ramps A and D.
Terracon’s scope of services will generally follow the Iowa Department of
Transportation’s (Iowa DOT) Design Manual: Chapter 200 - Geotechnical Design,
dated May 19, 2015. The following describes Terracon’s Scope of Services:
Field Exploration
The following estimate of borings and testing is based on the information identified
above. The actual number and depth of borings and tests may need to be revised
based on more detailed design information, on input from the design team, or field
conditions.
The proposed field exploration program includes the following:
Determination of proposed boring locations
Work and sampling plan preparation
Contacts for utility locations
Supervision of drilling operations
Three borings for the N Cascade Road/English Mill Road Interchange Bridge
to depths of about 50 feet
Six borings for the Eastbound Southwest Arterial Bridge over Catfish Creek to
depths of 20 to 40 feet
Page 12
Three borings for the Ramp A culvert to depths of about 30 feet
Three borings for the Ramp D culvert to depths of about 30 feet
We understand the Southwest Arterial is under construction at the locations of the
proposed structures, therefore CARS511 notification and DOT Right-of-Way permit is
not required. We request contact information for the prime contractor to coordinate
our field work.
Thin-walled tube samples and/or split-barrel samples will be obtained from the
borings. If we encounter subsurface conditions that merit revisions to the boring
and/or sampling programs described above, we will contact you and obtain your
approval prior to performing additional services that would increase our fee.
If safety allows, the boreholes will be left open for about 1 to 2 days after completion of
drilling so delayed water levels can be observed. Additional boreholes may be
required solely to obtain water level information at critical locations (e.g., bridges)
when the boreholes can be safely left open. The client should understand that some
settlement of the borehole backfill might occur. No future maintenance or filling the
holes is included in our fee.
Terracon will take reasonable efforts to reduce damage to the property. We have not
budgeted to restore the site beyond backfilling our boreholes. If there are any
restrictions or special requirements regarding this site or exploration, these should be
known prior to commencing or field work.
Our fee is based on the site being accessible to our ATV track-mounted drilling
equipment and Terracon personnel staking the borings using a hand-held GPS
device.
Laboratory Testing
The samples will be tested in our laboratory to determine select engineering
properties. Testing will be performed under the direction of a geotechnical engineer
and may include:
Test assignments
Moisture content
Dry unit weight
Unconfined compression
Consolidated-undrained (CU) triaxial tests
One-dimensional consolidation tests
Rock unconfined compressive strength tests on rock core samples (includes
water content and density tests)
Supervision of laboratory testing
Engineering review of laboratory test results
Engineering Analysis and Design
Settlem ent analyses at up to 6 locations
Stability analyses at up to 6 locations
Remedial design to address settlement and/or stability concerns using simple
remedial designs limited to core-outs and/or stability berms at 2 locations
Computer generated boring logs for all structure borings
Symbolized results of the drilling and testing in IDOT format added to digital
drawings to create soil plan-and-profile sheet (SPS sheets) for the following:
Page 13
o SWA Bridge over Catfish Creek (2 sheets)
o N Cascade Road/English Mill Road Interchange (1 sheet)
o Ramp A culvert (1 sheet)
o Ramp D culvert (1 sheet)
Supplemental Reports of Structure Soundings for bridges and culverts (18
total)
One preliminary and one final S4 submittal per bridge and culvert (4 structures
total) containing:
o stability and settlement summaries
o soil remediation description (if any)
o Structural Resistance Level, geotechnical Resistance Factor, and
general pile driving considerations for driven piles (for bridges)
o LRFD spread footing recommendations (for bridges)
Schedule
Terracon will have all work completed by January 15, 2018, to ensure that project
letting remains on schedule.
D. RDG Planning and Design Scope of Services - Task Group 1
The revised tasks for RDG consist of additional bridge enhancement design related to
full build-out of the Southwest Arterial Project, including paving of all four lanes and
construction of the N Cascade Road/English Mill Road Interchange and connector
roads. These modifications result in enhancement design for the N Cascade
Road/English Mill Road Interchange Bridge over the Southwest Arterial and the East
Bound Southwest Arterial Bridge over Catfish Creek.
RDG’s scope is further described as follows:
Task 1 - Additional Bridge Enhancement Design. This task includes the final
enhancement design for the N Cascade Road/English Mill Road Interchange Bridge
over the Southwest Arterial and the East Bound Southwest Arterial Bridge over Catfish
Creek, including, plans, special provisions and estimate reference information for
Check Plans, and Final Plan submittals.
a. N Cascade Road/English Mill Road Interchange Bridge over the Southwest
Arterial enhancement design will be based on design concepts similar to the
overpass bridges at English Mill Road and North Cascade Road, including
concrete form liner and coloring on piers, pier caps, pier risers, abutments,
abutment wings, abutment risers, and concrete barriers. Color will also be
added to the edge of bridge deck and outside face of concrete beams.
b. East Bound Southwest Arterial Bridge over Catfish Creek enhancement design
will be based on previously prepared design concepts for the West Bound
Southwest Arterial Bridge over Catfish Creek including form liner and color on
abutment risers, color on the outside face of concrete beams, and aesthetic
recommendations on traffic barrier rails.
Task 2 - Additional Bridge Lighting Design. This task includes photometric lighting
evaluation to confirm light pole blister locations. Conduit and anchor bolt design is not
included.
a. N Cascade Road/English Mill Road Interchange Bridge over the Southwest
Arterial preliminary bridge blister layout drawings.
Page 14
b. East Bound Southwest Arterial Bridge over Catfish Creek preliminary bridge
blister layout drawings.
Task 3 - Additional Meetings. This task includes additional meetings and coordination
attributed to the N Cascade Road/English Mill Road Interchange Bridge over the
Southwest Arterial and the East Bound Southwest Arterial Bridge over Catfish Creek.
Meetings are to be held via teleconference.
Task 4 - Project Administration. This task includes Quality Control Review for Bridge
Enhancements of the N Cascade Road/English Mill Road Interchange Bridge over the
Southwest Arterial and the East Bound Southwest Arterial Bridge over Catfish Creek.
E. MSA Professional Services Scope of Services - Task Group 2
MSA previously completed the horizontal design for the N Cascade Road/English Mill
Road Interchange in 2012 and supplied that to AECOM (as Ourston Roundabout
Engineering). Due to the amount of time that has passed since that design was
completed, MSA will review the geometrics completed at that time and then provide
design review for other roundabout-related items. Since MSA is a new company to be
included in the engineering contract with different direct and indirect costs, their costs
are to be segregated from Ourston Roundabout Engineering’s costs.
MSA proposes to undertake the following tasks:
Final Horizontal Geometry
• MSA will review the previously completed horizontal geometrics and provide
documentation updates, if necessary.
Design Support
• MSA will provide design review and recommendations on the following items
relating to the roundabout intersections to AECOM for their final plan
preparation:
o Permanent Signing
o Pavement Marking
o Vertical Geometrics
o Landscaping
o Lighting
o Construction Staging (If Necessary)
Project Deliverables
Deliverables for the roundabout and approaches will include:
• Updated Horizontal Design Files, If Necessary
• Updated Roundabout Design Documentation Sheets if Changes are Made
• Plan Sheet Mark-Ups
Page 15
II. TIME OF BEGINNING AND COMPLETION
The work shall be completed in accordance with the schedule defined in Supplemental
Agreement No. 15, which was extended to December 31, 2018. Terracon was authorized to
begin their portion of work under this Supplemental Agreement No. 19 on November 3, 2017,
based on the attached early Notice to Proceed approval.
III. COMPENSATION
The consultant shall be reimbursed for actual costs incurred in accordance with Article 3 of the
original agreement.
The Estimated Actual Cost, Fixed Fee, Contingency and Maximum Amount Payable for this
supplemental agreement, as stated below and as shown in Attachment A, are to be integrated
with those covered under the original agreement and Supplemental Agreement Nos. 1, 2, 3, 5,
7, 9, 11, 13, 14, 15, 16, 17 and 18.
Base Value Eng.
Agreement Modification S.A. No. 1 S.A. No. 2
Estimated Actual Costs $391,700.00 $56,200.00 $7,978,200.00 $19,900.00
Fixed Fee 22,500.00 5,200.00 427,000.00 0.00
Contingency 38,400.00 5,500.00 761,900.00 2,000.00
Maximum Amount Payable $452,600.00 $66,900.00 $9,167,100.00 $21,900.00
S.A. No. 3 S.A. No. 5 S.A. No. 7 S.A. No. 9
Estimated Actual Costs $175,200.00 $233,600.00 $334,600.00 $114,800.00
Fixed Fee 14,000.00 28,400.00 11,000.00 5,300.00
Contingency (2,400.00) 0.00 0.00 6,600.00
Maximum Amount Payable $186,800.00 $262,000.00 $345,600.00 $126,700.00
S.A. No. 11 S.A. No. 13 S.A. No. 14 S.A. No. 15
Estimated Actual Costs $323,500.00 $129,740.00 $651,340.00 $1,345,600.00
Fixed Fee 3,200.00 0.00 24,100.00 53,800.00
Contingency (151,900.00) 10,000.00 (113,000.00) (377,800.00)
Maximum Amount Payable $174,800.00 $139,740.00 $562,440.00 $1,021,600.00
S.A. No. 16 S.A. No. 17 S.A. No. 18 S.A. No. 19
Estimated Actual Costs $99,600.00 $102,450.00 $329,430.00 $1,083,780.00
Fixed Fee 7,200.00 5,800.00 23,800.00 93,800.00
Contingency 0.00 0.00 (7,500.00) 0.00
Maximum Amount Payable $106,800.00 $108,250.00 $345,730.00 $1,177,580.00
Total Amount
Estimated Actual Costs $13,369,640.00
Fixed Fee 725,100.00
Contingency 171,800.00
Maximum Amount Payable $14,266,540.00
IV. In other aspects, the obligations of the Owner and Consultant shall remain as specified in the
Professional Services Agreement dated May 8, 2009, and subsequent amendments.
Attachment C-1
Southwest Arterial Final Design
City of Dubuque, Iowa
Supplemental Agreement No. 19
COST ANALYSIS
I. Direct Labor Cost (AECOM Technical Services)
Category Hours Rate/Hour Amount
Senior Professional 322 $82.30 $26,500.60
Project Professional 1,512 $59.10 $89,359.20
Staff Professional 1,780 $46.70 $83,126.00
Professional 748 $35.80 $26,778.40
CADD Operator II 1,108 $33.90 $37,561.20
CADD Operator I 1,152 $26.80 $30,873.60
Senior Technician 40 $35.60 $1,424.00
Technician 40 $26.50 $1,060.00
Project Support 332 $31.00 $10,292.00 $306,975.00
7034
II. Payroll Burden and Overhead Provisional Costs 135.09% $414,692.53
III. Direct Project Expenses
Category Units Rate/Unit Amount
Mileage 2500 0.535 1,337.50
Per Diem 0 50.00 0.00
Lodging 0 90.00 0.00
B/W Copies 10000 0.06 600.00
Color Copies 10000 0.22 2,200.00
EDM Equipment 20 12.50 250.00
GPS Equipment 20 25.00 500.00
Miscellaneous, Other 2,000.00
$6,887.50
IV. AECOM Estimated Actual Costs $728,555.03
Rounded $728,600.00
V. Subcontract Expense
WHKS & Co. $277,580.00
Terracon $55,900.00
RDG $11,300.00
MSA $10,400.00
$355,180.00
VI. Estimated Actual Costs $1,083,780.00
VII. Fixed Fee $93,800.00
VIII. Contingency $0.00
IX. Maximum Amount Payable $1,177,580.00
Attachment C-1
Southwest Arterial Final Design
City of Dubuque, Iowa
Supplemental Agreement No. 19
COST ANALYSIS
The following bridge tasks will be tracked separately by costs as indicated in staff hour estimates.
In addition, an attachment to the invoices will be provided for the two bridges tracking progress:
Costs
1 Design of Eastbound Bridge Over Catfish Creek $292,500
2 Design of N Cascade Road Interchange Bridge (WHKS) $132,800
Hours and Tasks associated with Task Groups 2 and 3 will require Notice to
Proceed before beginning work.
As indicated in the Scope of Services, Task Groups 2 and 3 include Final Design
Tasks for the Four Lane Pave Project and Involve Scope Items for AECOM and MSA.
Group 2 Tasks Costs
AECOM $375,700
MSA $10,400
$386,100
Group 3 Tasks (Separate 2 Lane Pave Set)
AECOM $59,700
Attachment C-1
Senior Project Staff CADD Op CADD Op Senior Project
Description of Work Prof Prof Prof Prof II I Technician Technician Support Total
Group 1 Tasks
1 Design of Eastbound Bridge Over Catfish Creek
a. Bridge Design 140 800 400 200 240 400 80 2,260
b. Bridge Approaches and End-Drain Design 2 8 16 16 16 58
c. Guardrail Design 16 16 12 44
2 Construction Plan Set Preparation for Bridge Plans
a. Typical Sections and Detail Sheets 2 4 20 16 24 66
b. Miscellaneous Tabulations and General Notes 16 16 16 16 64
c. Miscellaneous Sheets and Plan Assembly 4 24 12 8 48
3 Box Culvert Designs 60 120 120 60 360
4 Preliminary Design for Pave Four Lanes Project
a Preliminary Grading and Drainage Design 6 30 18 16 16 86
b Preliminary Paving Design Plans for 4-Lane Construction 18 30 32 44 40 164
c Preliminary Design of Median Barrier 4 4 4 12
d Preliminary Design of Median Drainage Structures 16 4 20
Group 2 Tasks
5 Grading and Drainage Design for 4-Lane Construction
a. Modify Shoulder Grading for 4-Lane Construction 14 60 28 22 22 146
b. Modify Transition and Bridge Areas for 4-Lane Construction 6 20 14 14 14 68
c. Modify Grading to Eliminate Turn Lanes at N C. Conn. Road 6 20 14 14 14 68
d. Modify Grading of North Cascade Road Connector 14 14 14 14 56
6 Paving Design for 4-Lane Construction
a. Eastbound Lanes 34 64 64 120 120 402
b. Add Paving for 4 Ramps at N Cascade Road Interchange 18 30 32 12 16 108
c. Tabulations and Quantities 18 20 32 40 24 134
7 Design of Median Barrier 41212 20 48
8 Design of Median Drainage Structures 4 64 4 12 84
9 Signing and Pavement Markings Design
a. Type B Signing for N Cascade Interchange 6 36 28 48 24 142
b. Modify Type B Signing for U.S. 20 and U.S. 151/61 Interchanges 2 8 16 8 16 50
c. Type A Signing and Pavement Markings 2 8 80 80 40 40 250
10 Lighting Design at N Cascade Interchange 2 40 20 32 94
11 Subdrainage Design 16 60 60 40 40 216
12 Erosion Control Plans 32 80 80 80 40 312
13 Presentation Materials 40 40 20 40 40 20 200
14 Construction Cost Estimates 2 16 32 8 16 74
15 Quality Control Reviews 60 60 20 140
16 Submittals and DOT Coordination 16 40 40 24 40 160
17 N Cascade Road/English Mill Road Interchange Design Survey 16 40 40 96
18 Construction Staging 40 40 20 24 24 148
19 Additional Project Meetings and Coordination 40 40 20 80 180
20 Additional Project Administration 40 40 80 160
Group 3 Tasks
21 Additional Plan Set Preparation for Stand Alone Paving Plans for Eastbound Lanes
a Typical Sections and Details (B-series Sheets) 4 24 24 24 8 84
b Tabulations and Quantities (C-Series Sheets) 40 200 8 8 16 272
c Signing and Pavement Markings 4 24 12 12 52
d Construction Staging 8 40 8 12 68
e Submittals 484 8 8 840
TOTAL HOURS 322 1,512 1,780 748 1,108 1,152 40 40 332 7,034
Southwest Arterial Final Design
City of Dubuque, Iowa
Supplemental Agreement No. 19
Staff Hour Estimate
SOUTHWEST ARTERIAL CORRIDOR
WHKS & Co. COST ANALYSIS
CONSULTANT DESIGN COST WORKSHEET
Supplemental Agreement No. 19
I. Direct Labor Cost
Category Hours Rate/Hour Amount
Project Manager 126 70.35$ 8,864.10$
Structural Engineer 1 534 45.69$ 24,398.46$
Structural Engineer 2 251 36.20$ 9,086.20$
Roadway Engineer 1 396 33.50$ 13,266.00$
Roadway Engineer 2 320 64.74$ 20,716.80$
Structural Technician 508 28.80$ 14,630.40$
Roadway Technician 436 22.00$ 9,592.00$
Survey Technician 0 23.58$ -$
Land Surveyor 0 41.02$ -$
Total 2,571 100,553.96$
(Rounded) 100,560$
II. Payroll Burden and Overhead Costs (Rounded) 146.37%147,190$
III. Direct Project Expenses (Rounded)
Mileage @ $0.535 per mile miles -$
Meals
Lodging nights @ $91.00
Miscellaneous - Postage, Printing, Reproduction, Telephone, etc. 100$
Permit Fees
Total 100$
IV. Estimated Actual Costs (Rounded) (I+II+III)247,850$
V. Fixed Fee (Rounded) 12% x (I+II)29,730$
VI. Contingency (Rounded) 0.00% 0 % x (I+II+III)-$
VII. Maximum Amount Payable (Rounded) (IV+V+VI) 277,580$
H:\Data\OperationsManager\2017 Contract Budgets\SA19 SWA\DubSWArtSANo 19 DECRevision.xlsx
12/13/2017
Supplemental Agreement No. 19
Project Structural Structural Roadway Roadway Structural Roadway Survey Land
Description of Work Manager Engineer 1 Engineer 2 Engineer 1 Engineer 2 Technician Technician Technician Surveyor Total
Added / Modified Tasks
Connector Rd
Mill Rd and Task 1-Typical Sections and Details 12 6 20 38
N. Cascade Rd Task 2-Bid Items and General Notes 20 48 68
Task 3-Tabulations and Quantities 40 24 48 112
Task 4-Plan and Profile Sheets 40 24 60 124
Task 5-Geometric Layout Sheets 64 10
Task 6-Intersection Detail Sheets 40 48 80 168
Task 7-Drainage and Culvert Design 40 10 40 90
Task 8-Soils Sheets 12 2 822
Task 9-Sidewalk Sheets 12 2 20 34
Task 10-Soils and Earthwork Design Sheets 80 40 80 200
Task 11-Detail Sheets 64 12 22
Task 12-Cross Section Sheets 60 60 60 180
English Mill Road /
North Cascade Rd Task 1 534 251 508 1293
Bridge over SWA
Temporary Sediment 22416850
and Erosion Control
Devices for Storm
Water Retention
Miscellaneous Task Items
Project Administration 120 24 144
Cost Estimates 448 16
Subtotal 126 534 251 396 320 508 436 2571
TOTAL HOURS 126 534 251 396 320 508 436 2,571
SW Arterial, Dubuque IA
Staff Hour Estimate
H:\Data\OperationsManager\2017 Contract Budgets\SA19 SWA\DubSWArtSANo 19 DECRevision.xlsx
03/28/2014
Attachment A
I. Direct Labor Cost
Category Hours Rate/Hour Amount
Technician 150 $17.46 $2,619.00
Senior Technician 25 $21.92 $548.00
Driller (2 drill staff per rig crew) 160 $26.33 $4,212.80
CAD Drafter 55 $22.23 $1,222.65
Administration/Secretary 5 $20.47 $102.35
Field / Data Coordinator 32 $27.27 $872.64
Project Engineer 110 $36.53 $4,018.30
Senior Project Manager 15 $43.89 $658.35
Principal Engineer 5 $57.47 $287.35
$14,541.44
557
II. Payroll Burden and Overhead Costs 187.06% $27,201.22
III. Direct Project Expenses
Category Units Rate/Unit Amount
Drill Rig (Hours) 80 $72.45 $5,796.00
Mileage 250 $0.535 $133.75
Subtotal $5,929.75
IV. Estimated Direct Third Party Expenses
Crop Damage At Cost $0.00
Meals & Accommodations 14 $140.00 $1,960.00
Misc. Supplies At Cost $100.00
Traffic Control At Cost $0.00
Subtotal $2,060.00
V. Estimated Actual Costs $49,732.41
Rounded $49,700.00
VI. Fixed Fee (I + II + III) $6,200.00
VII. Contingency $0.00
VIII. Maximum Amount Payable $55,900.00
Terracon Consultants
Southwest Arterial Final Design
Seippel Road to Olde Davenport Road
City of Dubuque, Iowa
Supplemental Agreement No. 19
Staff Hour & Cost Estimate
Attachment A
Description of Work P2-1 P1-1 LA2 ILA1 EE LD-1 LD-2 Artist Total
Modified Tasks
Task 1 - Additional Bridge Enhancement Design
a. Connector Road Interchange Bridge over SWA 3.00 32.00 35.00
b. East Bound SWA Catfish Creek Bridge 3.00 24.00 27.00
Task 2 - Additional Bridge Lighting Design
a. Develop Revised or Additional Enhancement Concepts 1.00 2.00 4.00 7.00
b. Preliminary Lighting Design 1.00 2.00 4.00 7.00
Task 3 - Meetings
a. Project Meetings (10 Total Teleconferences) 2.00 15.00 1.00 18.00
Task 4 - Project Administration
a. Quality Control for Bridge Enhancements 8.00 2.00 1.00 11.00
TOTAL HOURS 16.00 75.00 0.00 0.00 0.00 6.00 8.00 0.00 105.00
Direct Labor Plus OH $2,172.80 $6,106.50 $0.00 $0.00 $0.00 $782.64 $566.48 $0.00 $9,628.42
Total Labor and OH
Direct Expense Costs
Per Diem $0.00
Lodging $0.00
Printing $500.00
Miscellaneous $0.00
Total Estimated Costs
Estimated Costs Rounded
Fixed Fee
Subtotal $11,300.00
Contingency
Maximum Amount Payable
$1,150.00
Southwest Arterial Final Design
Seippel Road to Olde Davenport Road
City of Dubuque, Iowa
Staff Hour Estimate & Cost Estimate
RDG Planning & Design
$9,628.42
$500.00
$10,128.42
$10,150.00
$11,300.00
Southwest Arterial Final Design
City of Dubuque, Iowa
I. Direct Labor Cost
Category Hours Rate/Hour Amount
Project Manager 32 $49.38 $1,580.16
Project Engineer 48 $35.00 $1,680.00
Design Engineer 8 $26.61 $212.88 $3,473.04
88
II. Payroll Burden and Overhead Provisional Costs 167.07% $5,802.41
III. Direct Project Expenses
Category Units Rate/Unit Amount
Mileage 0 0.535 0.00
$0.00
IV. Estimated Actual Costs $9,275.45
Rounded $9,300.00
V. Fixed Fee $1,100.00
VI. Contingency $0.00
VII. Maximum Amount Payable $10,400.00
Costs Incurred by MSA will be segregated from previous costs incurred by Ourston.
Supplemental Agreement No. 19
Staff Hour & Cost Estimate
MSA
From:Bob Schiesl
To:Schindel, Doug; Durbahn, Mark; Theresa Stromberg-Murphy
Subject:Fwd: AECOM SA 19 #08407 PC Review
Date:Friday, November 03, 2017 4:36:33 PM
Terracon is authorized to proceed
Robert Schiesl, P.E.
Assistant City Engineer
City of Dubuque, Iowa
City Hall, 50 W 13th Street
Dubuque, Iowa 52001
Phone: 563.589-4270
Email: bschiesl@cityofdubuque.org
Sent from my iPhone
Begin forwarded message:
From: "Ellis, Kent" <Kent.Ellis@iowadot.us>
Date: November 3, 2017 at 4:01:45 PM CDT
To: Bob Schiesl <Bschiesl@cityofdubuque.org>
Cc: "Yanna, Kenneth" <Kenneth.Yanna@iowadot.us>, "Heeren, Douglas"
<Douglas.Heeren@iowadot.us>
Subject: FW: AECOM SA 19 #08407 PC Review
Bob,
Attached is the Pre Contract Review from External Audits for the AECOM SA 19.
Please proceed to amend the draft agreement as discussed today with District staff.
You may now consider this as a concurrence to allow Terracon to begin their portion of
the agreement now.
I will now proceed with making the FHWA authorization request.
Thanks,
<image003.png>Kent L. Ellis, P.E.
Local Systems Engineer
District 6 Office
5455 Kirkwood Blvd. SW
Cedar Rapids, IA 52404
kent.ellis@iowadot.us
319-364-0235
From: Miller, Trisha
Sent: Friday, November 03, 2017 2:53 PM
To: Ellis, Kent <Kent.Ellis@iowadot.us>; Jacobs, Patricia <Patricia.Jacobs@iowadot.us>
Subject: AECOM SA 19 #08407 PC Review
Attached.
*PLEASE NOTE: OUR EMAIL DOMAIN HAS CHANGED. PLEASE UPDATE YOUR
RECORDS TO REFLECT THIS NEW EMAIL ADDRESS: trisha.miller@iowadot.us
Trisha Miller
Administrative Assistant External Audits
Iowa Department of Transportation
800 Lincoln Way
Ames, IA 50010
Phone: 515.239.1390
To comment on my service:
http://www.surveymonkey.com/s/OPFIN-Finance
Thank you for your time.
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<AECOM SA19 #08407.pdf>