HomeMy WebLinkAboutAdden 6AMENDMENT NO. 6 TO AGREEMENT FOR CEDAR RIVER 205
PROJECT LEVEE CERTIFICATION CAG-15-224
THIS AMENDMENT, dated for reference purposes only as April 26, 2022, is by and between the
City of Renton (the “City”), a Washington municipal corporation, and Tetra Tech, Inc.
(“Consultant”), a Washington Corporation. The City and the Consultant are referred to
collectively in this Amendment as the “Parties.” Once fully executed by the Parties, this
Amendment is effective as of the last date signed by both parties.
Whereas, the City engaged the services of the Consultant under Agreement CAG-15-224, dated
December 7, 2015, to provide necessary services for the Cedar River 205 Project levee
Certification (referred to herein as the “Agreement”);
Whereas, the Parties wish to amend the Agreement to change the scope of work, change the
time for performance, and change the compensation in order to address changes in the design,
additional design and actions required to meet the levee certification and accreditation
requirements, and construction support services.
NOW THEREFORE, It is mutually agreed upon that CAG-15-224 is amended as follows:
1. Scope of Work: Section 1, Scope of Work, is amended to add work as specified in Exhibit
A-6, which is attached and incorporated herein.
2.Time of Performance: Section 3, Time of Performance, is amended pursuant to the
schedule(s) set forth in Exhibit B-6. All Work shall be performed by no later than
December 31, 2024.
3.Compensation: Section 4, Compensation, is amended so that the maximum amount of
compensation payable to Consultant is increased by $337,210 from $1,327,694 to
$1,664,904, plus any applicable state and local sales taxes. The additional compensation
shall be paid based upon Work actually performed according to the rate(s) or amounts
specified in Exhibit C-6, which is attached and incorporated herein].
4.All terms of the Agreement not explicitly modified herein shall remain in full force and
effect and such terms shall apply to Work performed according to this Amendment as if
fully set forth herein.
CAG-15-224, Adden #6-22
PAGE 2 OF 2
IN WITNESS WHEREOF, the Parties have voluntarily entered into this Amendment as of the date
last signed by the Parties below.
CITY OF RENTON
By:_____________________________
CONSULTANT
By:____________________________
Armondo Pavone
Mayor
Kathy Cox-Czosnyka
Vice President, Tetra Tech Inc.
_____________________________
Date
_____________________________
Date
Attest
_____________________________
Jason A. Seth
City Clerk
Approved as to Legal Form
By: __________________________
Shane Maloney
Renton City Attorney
Contract Template Updated 06/17/2021
6/27/2022
Approved by Cheryl Beyer via 4/29/2022 email
C-1 April 2022
EXHIBIT A-6
CEDAR RIVER 205 PROJECT LEVEE CERTIFICATION
PHASE III - ENGINEERING DESIGN
AMENDMENT 6
SCOPE OF WORK
OVERVIEW
The following scope of work is an amendment to the Phase III Scope providing professional engineering
consulting services to design improvements and perform permitting necessary to certify the Cedar River
205 Levees in accordance with Federal Emergency Management Agency (FEMA) requirements as
codified in 44 CFR Section 65.10. The levee system is located between Lake Washington and
approximately the Williams Avenue South Bridge and is approximately 2.5 miles in length (1.25 miles on
each side of the river).
During the design and permitting phase of this project additional scope items were identified that will
require revisions to reports and associated designs for the project. The scope will be amended to add
the following activities.
x Boeing water lines – Shallow waterlines under the existing Levee near the Logan Avenue Bridge
required an MSE wall system to reduce loading above the waterlines. This required additional
analysis and design and a minor roadway shift. A monitoring during construction plan will also
be required.
x Uniform Report Stationing – The levee system has an inconsistent legacy stationing (location
reference) which required all associated report and plans to have a consistent reference and will
expedite both USACE and FEMA reviews. This will also benefit the Levee system by establishing
consistent stationing that did not previously exist.
x Airport Fence Up grades – In areas where the project is impacting fence, upgrades are identified
and shown in areas adjacent to the project.
x Additional Habitat Mitigation – The WDFW is requiring more vegetation mitigation than was
originally scoped.
x Senior Center Wall – Adjustments to a proposed floodwall to meet aesthetics and operational
needs of the facility.
To support the implementation of the project the following scope will be added to the project:
x Engineering During Construction – Support City of Renton staff during the construction of the
project.
x Establishment of Final Project Alignment Stationing – The post construction alignment of the
project will be documented and incorporated into the record drawings.
General Assumptions
1. CONSULTANT responsibility for any permit support is limited to scope as previously defined in Phase
III scope of work. CITY will finalize and submit all permit applications and pay all permit fees. If
additional support is requested by the City, Task 12 funds can be authorized by mutual agreement
between the City and consultant.
C-2 April 2022
2. Coordination of agency reviews will be handled by the CITY.
3. Document review and resolution of conflicting comments from CITY staff or stakeholders will be
managed by CITY.
4. In providing opinions of cost, financial analyses, economic feasibility projections, and schedules for
the Project, CONSULTANT has no control over cost or price of labor and materials; unknown or
latent conditions of existing equipment or structures that may affect operation or maintenance
costs; competitive bidding procedures and market conditions; time or quality of performance by
operating personnel or third parties; and other economic and operational factors that may
materially affect the ultimate Project cost or schedule. Therefore, CONSULTANT makes no warranty
that CITY’s actual Project costs, financial aspects, economic feasibility, or schedules will not vary
from CONSULTANT’s opinions, analyses, projections, or estimates. If CITY wishes greater assurance
as to any element of Project cost, feasibility, or schedule, CITY will employ an independent cost
estimator, contractor, or other appropriate advisor.
5. In soils, foundation, groundwater, and other subsurface investigations, the actual characteristics
may vary significantly between successive test points and sample intervals and at locations other
than where observations, exploration, and investigations have been made. Because of the inherent
uncertainties in subsurface evaluations, changed or unanticipated underground conditions may
occur that could affect total project cost and/or execution. These conditions and cost/execution
effects are not the responsibility of CONSULTANT.
6. The CONSULTANT’s development of construction schedules and/or sequencing is for the purpose of
estimating number of days to complete a project, and for identifying potential schedule and
coordination challenges and determining compliance with the construction contract. Neither that
activity nor review of and comment on Contractor submitted schedules will be considered as a
guarantee or confirmation that the Contractor will complete the work in accordance with the
contract for construction, or within the time period suggested in CONSULTANT-developed
schedules, as means and methods are the responsibility of the construction contractor.
7. The presence or duties of CONSULTANT’s personnel onsite, whether as onsite representatives or
otherwise, do not make CONSULTANT or CONSULTANT’s personnel in any way responsible for those
duties that belong to the CITY and/or other entities, including the construction contractor(s), and it
is understood that CONSULTANT will assume no responsibility for: proper construction means,
methods, techniques; or for the failure of any other entity to perform its work in accordance with
laws, contracts, regulations, or CITY’s expectations. CONSULTANT IS not responsible for the
construction contractor(s)’ actions relating to health and safety, or for the construction
contractor(s)’ failure to maintain a safe worksite.
8. The CONSULTANT’s review of all shop drawings, samples and submittals will be for general
conformance with the design concept and general compliance with the requirements of the contract
for construction. Such review will not relieve the Contractor from its responsibility for performance
in accordance with the contract for construction, nor is such review a guarantee that the work
covered by the shop drawings, samples and submittals is free of errors, inconsistencies or omissions.
9. The CONSULTANT will not, except as part of Additional Services, undertake comprehensive and
detailed investigation or analysis of Contractor’s claims and disputes, nor participate in judicial or
alternative dispute resolution procedures for the claims or disputes.
10. The CITY will verify that the required permits, bonds and insurance have been obtained and
submitted by the contractor.
C-3 April 2022
PHASE III – Engineering Design, Permitting and Environmental
Compliance Scope of Work (Amendment 6)
PPHASE III – Engineering Design Amendment 6 Summary
The amendment covers additional scope and future services previously described in the project
overview section. These items were identified while developing the Phase III project. Task 13 has been
added to provide engineering support during Construction for the improvements. Construction is
anticipated to occur in 2023.
The additional scope impacts the following tasks:
Task 1. Project Management and Meetings – This task is being amended for additional PM time to
Manage and address new scope.
Task 7 75% Design – This task is being amended to add updates the 75% plans based upon City
comments and team input. A revised (updated) submittal will be created with design related revisions.
Addition of an inadvertent discovery plan will be included.
Task 9 Update CLOMR Submittals – This task is being amended to update reports for 408 submittals
focused on wall analysis, stability and updates related to project standard reference stationing. This will
also apply later to CLOMR submittal and allow for a final project stationing to be developed after
construction of the improvements.
Task 12 Contingency (Unforeseen Design/Permitting Changes) – Amend this task to provide budget for
unforeseen design or permitting Changes. One example of this is the USACE Requesting an EA review
and approval process for the project. This can also be used to provide additional field support or
analysis during the implementation of the project if requested by the City.
Task 13 Engineering Support During Construction – This is a new task to provide engineering support
during construction of the levee improvements and establish new project alignment and stationing.
The scope details are discussed below.
Task 1 - Project Management and Meetings (Amended Task)
Project management activities required for the completion of the Levee Improvement design
(henceforth referred to as “design”) are described below.
Subtask 1.1 – General Management (Amended Subtask)
The CONSULTANT will prepare and submit an updated project schedule to the CITY that details activities
and clearly defines the critical path work elements. It will also include identification of potential the time
frames associated with uncertainties connected with approvals of permits and other submittals by
agencies. The CITY will provide direction on the durations for review periods to incorporate in the
schedule. The schedule will be used to determine what tasks will go forward while submittal approvals
are awaiting. Risks associated with going forward with certain tasks or subtasks prior to receipt of permit
approval will also be identified and discussed to help inform scheduling decisions. The schedule will be
updated monthly or as needed.
Additional project management activities will involve; team management, invoicing and budget
monitoring.
C-4 April 2022
Subtask 1.2 – Coordination Meetings (Amended Subtask)
Two additional coordination meetings with the client will be held during Phase III. Each will be a 1-hour
via Teams meeting. The first will be a kickoff meeting, the second will occur after submittal of updated
75% PS&E. Up to five staff from the consultant team may attend each meeting: the PM, the lead
Geotechnical Engineer, the lead Hydraulic Engineer, the lead Landscape Architect, and the Lead
Environmental Scientist (permitting).
Subtask 1.3 – Monthly 30 Minute Phone Call (Amended Subtask)
Monthly 30-minute calls to discuss project progress will be held between the Renton PM and the Tetra
Tech PM. Eight (8) additional meetings are assumed for the duration of Phase III. Task leaders will attend
those meetings when there are specific issues that need to be discussed in detail for their task. Prior to
these meetings, internal staff progress and coordination meetings will be conducted.
Subtask 1.5 – QA/QC (New Subtask)
The Project team will coordinate and perform QA/QC on the updated 75% deliverables and report
updates. Comments will be documented and saved in a QA/QC folder.
Task 1 - Assumptions
x Coordination meetings are 1-hour duration.
x Monthly progress meetings are 30-minute duration Phone Call.
x Additional project design execution period is approximately 8 months (including FEMA and ESA
review periods).
x Support during project constriction is approximately 6 Months
Task 1 - Deliverables
x Notes actions and comments identified during coordination meetings with the City of Renton.
x Notes and Actions Identified during 30-minute Phone Calls.
x Schedule Updates.
x Monthly progress reports
x Monthly invoices
TTask 7 – 75% Design (Amended Task)
Task 7 will be supplemented to address changes to the design associated with the following items:
x Mechanically Stabilized Earth (MSE) wall design and alignment change at Logan Avenue Bridge.
x Roadway adjustments to East Perimeter Drive including the analysis of turning movements to
reduce impacts to the Boeing Water System. This includes paving, traffic signage, pavement
stripping and drainage and utility cover adjustments.
x Changing the Wall design at the Senior Center to meet additional aesthetic needs for wall
treatment and geometry changes.
x Modification of Wall system to a berm next to the Renton stadium Parking lot, which was
coordinated with the Lake Washington Bike trail.
x Additional Plan Sheets (8) will be created to address the vegetation mitigation and restoration
requirements due to WDFW permitting comments.
C-5 April 2022
Comments from the City on the 75% design plans along with increased level of detail will be
incorporated into the updated 75% design level plans. The specifications and cost estimate will also be
updated to include an inadvertent discovery plan (IDP).
Subtask 7.5 – Update 75% Landscape Design (New Subtask)
Multiple landscape areas were identified as part of the mitigation plan associated with the project
improvements. Landscape design will be updated to incorporate comments from the 75% design level
plans and will consist of the following items:
x Visit Site to Review Existing Irrigation systems.
x Update Landscape Planting Plans—Updates to these plans will include updates based upon
project design changes for the 75% plan set. These plans will also include graphic locations of
areas to be planted. Additional Plan Sheets (8) will be created to address the vegetation
mitigation and restoration requirements due to WDFW permitting comments (See attachment
1).
x Update Irrigation Plans - (TBD based on whether temporary or permanent irrigation is deemed
appropriate).
x Update Landscape Architectural Specifications - Draft specifications in WSDOT/APWA format.
x Update Construction Cost Estimate - Updated Estimate from 75% submittal.
Subtask 7.6 – Update 75% Civil Design (New Subtask)
Civil engineering design will be updated to incorporate comments from the 75% design level plans and
additional details. This effort will consist of the following items:
x Update Erosion Control Plans – These plans will implement erosion control features and BMP’s
for the project.
x Update Site Plans--These plans will include the locations of new or improved floodwalls, fill
areas and grading listed above.
x Update Civil Details-- Sections and details for constructing fill areas and floodwalls.
x Update Civil Specifications – Draft specifications in WSDOT/APWA format.
x Update Construction Cost Estimate-- Updated Estimate from 75% submittal.
x Incorporate Inadvertent Discovery Plan (IDP) into Specification
Subtask 7.7 – Update 75% Structural Design (New Subtask)
Structural design will be updated to incorporate comments from the 75% design level plans and will
consist of the following items:
x Update Construction Details-- Typical sections and details for constructing the floodwalls.
x Update Construction Specifications--This task includes draft technical construction
specifications.
x Update Construction Cost Estimate-- Updated Estimate from 75% submittal.
Subtask 7.8 – Update 75% Geotechnical Design (New Subtask)
Geotechnical aspect of review comments on the 75% design of the retaining walls (new and modified),
modified levee sections, modified floodwall sections, and roadways/pavement sections. This task
C-6 April 2022
provides geotechnical support for the updated 75% design and the USACE Section 408 Submittal and
includes the following items:
x Review project plans and specifications developed or advanced by the project team.
x Revise slope stability analyses to include comparison of existing conditions to proposed
conditions. Revisions will also include presenting multiple analysis methods including circular
and block failure analyses with optimized and non-optimized failure surfaces.
x Update Consolidate analysis of modified areas into document for USACE Section 408 submittal.
x Provide geotechnical input WSDOT/APWA format to draft plans and specifications associated
with MSE wall near the Logan Ave Bridge.
Task 7 - Assumptions
x Slope stability analyses can be performed and submitted in Slope/W. Local USACE District
(Seattle) review or a national USACE Risk Management Center review will not require different
analysis tools or methods.
Task 7 - Deliverables
x Updated 75% Plans in PDF and AutoCAD formats, Draft Specifications, and Updated Cost
Estimate.
x Updated Geotechnical Levee Analysis Report.
x Inadvertent Discovery Plan (IDP) Attachment for Specifications
TTask 9 – Update CLOMR Submittal and Prepare USACE Section 408 Submittal (Amended
Task)
The body of the certification report summarizes the results of the technical analyses and the report
attachments include the supporting information. Under this task, a new CLOMR submittal will be
developed. The new submittal will be an update of the material in the original (Phase II) April 2018
CLOMR submitted to FEMA in April 2018. The material will be updated to reflect the 75% design of the
modifications identified in Phase II and document compliance with ESA. The following CLOMR Submittal
items will be updated from the Phase II work previously completed for the project or added based on
the current permitting effort conducted under Tasks 4 and 5. The USACE Section 408 submittal will also
be compiled as part of this Task.
The Project (USACE) did not have a standard set of stationing for the project. The Reports previously
produced for the project contained more than one alignment. In order to clarify the location of
modifications to the Levee system and help the USACE review the proposed modifications. The Tetra
Tech team will update the report alignments. This updated alignment effort was not previously scoped
and will be used as the Basis for establishing a constructed alignment once the improvements are
constructed.
Subtask 9.5 – Update Report Alignments to Record Drawing Standard for USACE Section 408
Submittal (New Subtask)
The project team will modify the engineering materials developed for the FEMA CLOMR submittal to fit
the requirements of the USACE Section 408 submittal. The technical appendices from the CLOMR
C-7 April 2022
submittal will serve as discipline reports and a basis of design report will be developed from the
certification report
Task 9 – Updated Appendices May Include:
x As-builts of the original Section 205 project (from Phase II submittal).
x Plans of Improvements (updated to reflect 75% submittal).
x Updated MT-2 Forms (updated to reflect 75% design and environmental compliance).
x Updated Previous Inspection Reports (Updated from Phase II submittal if more recent USACE
inspections available).
x Updated Operations & Maintenance Manual and Emergency Preparedness Plan (from Phase II
Submittal with minor updates to reflect proposed improvements including new closures).
x Updated Hydrologic/Hydraulic Reports (R&U analysis updated from Phase II to reflect design
height of levees and floodwalls).
x Updated Geotechnical Report (Updated per Task 3 of this scope of work).
Task 9 - Assumptions:
x Inspection Reports will not be Updated (A separate alignment and stationing is currently a
different standard for this Report)
Task 9 - Deliverables:
x Updated applicable reports:
1. CEDAR RIVER CERTIFICATION REPORT
2. ATTACHMENT A Hydrology
3. ATTACHMENT B: Riverine Hydraulics and Freeboard
4. ATTACHMENT D: Work maps
5. ATTACHMENT F: Updated Operations and Maintenance Manual
6. ATTACHMENT H: Embankment Protection
7. ATTACHMENT I: Levee System Stability and Certification Report
8. ATTACHMENT J: Structural Assessment Report
9. ATTACHMENT L: Contract Plans
10. ATTACHMENT M: Biological Assessment
11. EXHIBIT 1: MT-2 Forms
12. Cultural Resources Report
13. Hazardous Materials Report
TTask 12 Contingency (Unforeseen Design/Permitting Changes) (Amended Task)
This task was created to provide a pool of hours to cover unforeseen design changes and permitting
needs that come up as the project is executed. The funds under this task may be distributed to any of
the Tetra Tech team members as determined appropriate by the City and Tetra Tech to perform the
unforeseen work.
Task 12— Assumptions
x Funds in this task will be allocated to the appropriate Tetra Tech team members when
unforeseen work is identified.
x When the need for conducting work covered by this task arises, Tetra Tech will prepare a scope
of work and cost estimate and submit it to the City's Project Manager for approval.
Task 12- Deliverables
C-8 April 2022
x To be determined and identified in the scope of work for each unforeseen work effort.
TTASK 13 Support During Construction and Record Drawings (New Task)
Task 13.1 Support During Construction
The CONSULTANT shall provide support during construction including responding to City
and Contractor Submittals, RFI’s and Questions.
Task 13.1.1 Kickoff meeting
The CONSULTANT will attend a kickoff meeting with the City and Construction Contractor
Assumptions:
x City will Lead Kickoff Meeting
x Up to Four (4) Consultant Team Members will attend
Deliverables:
x Notes with Action Items
Task 13.1.2 Submittal Reviews
The CONSULTANT will review submittals and RFI’s for the project.
x Civil/Structural (6 submittals, 6 RFI's, 3 Resubmittals)
x Geotechnical (3 submittals, 3 RFI's, 2 Resubmittals)
x Landscaping (3 submittals, 3 RFI's, 2 Resubmittals)
x Environmental Compliance (3 RFI's)
Assumptions:
x The number of submittals, resubmittals and RFI are described above.
Deliverables:
x Up to 12 submittals and 7 resubmittals
x Up to 15 RFI’s
Task 13.1.3 Field Visits
The CONSULTANT will provide site visits to observe project progress and answer City
questions. The following design disciplines are anticipated to perform these visits.
x Civil/Structural
x Geotechnical
x Landscaping
x Environmental Compliance
C-9 April 2022
Assumptions
x Six site visits per Discipline (24 Total)
x City is the Inspection Lead
x All communications with Contractor will go through City staff.
Deliverables:
x Notes and communication back to the City.
x Photos
Task 13.1.4 Record Drawings
The CONSULTANT will incorporate Contractor provided Markups into record drawings for
the project.
Assumptions
x All communications with Contractor will go through City staff.
x Consultant will not stamp Record Drawings
x Consultant will not be liable for inaccurate information provided by City and City’s
contactor.
Deliverables:
x Draft Record Drawings
x Final Record Drawings
Task 13.1.5 High Point Survey
The CONSULTANT will incorporate Contractor provided high point survey and stationing
Markups into record drawings for the project.
Assumptions
x All communications with Contractor will go through City staff.
x Consultant will not stamp Record Drawings
x Consultant will not be liable for inaccurate information provided by City and City’s
contactor.
x High Point Survey is Required by USACE and or FEMA for 205/408,
CLOMAR/LOMAR process.
Deliverables:
x Draft Record Drawings with High Point and Stationing
x Final Record Drawings with High Point and Stationing
Task 13.1.6 Mitigation Compliance
The CONSULTANT will document mitigation compliance at the conclusion of construction
activities and prepare a permit compliance report addressing compensatory riparian planting
mitigation completed for the project, for submission to regulatory agencies.
C-10 April 2022
Assumptions
x 1 (one) site visit to verify extents of planting installation, establish monitoring
stations and gather initial monitoring data.
x Permits have not yet been obtained for the project; mitigation compliance
requirements are assumed to be consistent with the Riparian Mitigation Plan
submitted, including post-construction monitoring requirements specified therein.
x Mitigation Compliance Report will be submitted to Washington State Department of
Fish & Wildlife and/or City of Renton Planning Department, as required, to
document compliance with the Hydraulic Project Approval (HPA) permit and City of
Renton Shoreline Substantial Development Permit, including Critical Areas
approval. A permit from the U.S. Army Corps of Engineers for Section 404 of the
Clean Water Act is not anticipated at this time, which could have increased
mitigation compliance and monitoring requirements.
x Post-construction mitigation monitoring for 5 years is anticipated to be required and
is not included at this time.
Deliverables:
x Draft Mitigation Compliance Report
x Final Mitigation Compliance Report
C-11 April 2022
EXHIBIT B-6
CEDAR RIVER 205 PROJECT LEVEE CERTIFICATION
SCHEDULE
,' 7DVN1DPH 'XUDWLRQ 6WDUW )LQLVKĞĚĂƌZŝǀĞƌϮϬϱWƌŽũĞĐƚ>ĞǀĞĞƐĞƌƚŝĨŝĐĂƚŝŽŶϭϮϳϯĚĂLJƐ͍dŚƵϬϴͬϬϴͬϭϵDŽŶϬϲͬϮϰͬϮϰϭ͘ϬWƌŽũĞĐƚDĂŶĂŐĞŵĞŶƚĂŶĚDĞĞƚŝŶŐƐϭϮϮϱĚĂLJƐdŚƵϬϴͬϬϴͬϭϵtĞĚϬϰͬϭϳͬϮϰϭ͘ϭ'ĞŶĞƌĂůDĂŶĂŐĞŵĞŶƚϭϮϯϯĚĂLJƐdŚƵϬϴͬϬϴͬϭϵDŽŶϬϰͬϮϵͬϮϰϭ͘ϮŽŽƌĚŝŶĂƚŝŽŶDĞĞƚŝŶŐƐϭϮϯϯĚĂLJƐdŚƵϬϴͬϬϴͬϭϵDŽŶϬϰͬϮϵͬϮϰϭ͘ϯŝͲtĞĞŬůLJϯϬDŝŶWŚŽŶĞĂůůϭϮϯϯĚĂLJƐdŚƵϬϴͬϬϴͬϭϵDŽŶϬϰͬϮϵͬϮϰϭ͘ϰ^ŝƚĞsŝƐŝƚĂŶĚ<ŝĐŬŽĨĨϮϬĚĂLJƐdŚƵϬϴͬϬϴͬϭϵtĞĚϬϵͬϬϰͬϭϵϮ͘ϬdŽƉŽŐƌĂƉŚŝĐ^ƵƌǀĞLJϮϭϮĚĂLJƐdŚƵϬϴͬϬϴͬϭϵ&ƌŝϬϱͬϮϵͬϮϬϯ͘Ϭ'ĞŽƚĞĐŚŶŝĐĂů^ƵƉƉŽƌƚϯϬйĞƐŝŐŶϯϳϳĚĂLJƐdƵĞϭϭͬϮϲͬϭϵtĞĚϬϱͬϬϱͬϮϭϯ͘ϭZĞǀŝƐĞĂŶĚĞǀĞůŽƉĞƐŝŐŶƌŽƐƐƐĞĐƚŝŽŶƐϭϱĚĂLJƐdƵĞϭϭͬϮϲͬϭϵDŽŶϭϮͬϭϲͬϭϵϯ͘ϮĞƌƚŝĨŝĐĂƚŝŽŶZĞƉŽƌƚZĞǀŝƐŝŽŶƐĂŶĚDdͲϮ&ŽƌŵƐϮϬĚĂLJƐdŚƵϬϰͬϬϴͬϮϭtĞĚϬϱͬϬϱͬϮϭϯ͘ϯZŽĂĚǁĂLJZĞƚĂŝŶŝŶŐtĂůůĞƐŝŐŶĂŶĚŽŶƚƌƵĐƚŝŽŶZĞĐŽŵŵĞŶĚĂƚŝŽŶƐϭϱĚĂLJƐdƵĞϭϮͬϭϳͬϭϵDŽŶϬϭͬϬϲͬϮϬϯ͘ϰ'ĞŽƚĞĐŚŶŝĐĂů^ƉĞĐŝĨŝĐĂƚŝŽŶƐϭϬĚĂLJƐdƵĞϬϭͬϬϳͬϮϬDŽŶϬϭͬϮϬͬϮϬϰ͘Ϭ ŶǀŝƌŽŶŵĞŶƚĂůWĞƌŵŝƚƚŝŶŐϴϵϯĚĂLJƐdŚƵϬϴͬϬϴͬϭϵDŽŶϬϭͬϬϵͬϮϯϰ͘ϭ&ŝĞůĚtŽƌŬϯϱĚĂLJƐdŚƵϬϴͬϬϴͬϭϵtĞĚϬϵͬϮϱͬϭϵϰ͘ϮƌŝƚŝĐĂůƌĞĂƐZĞƉŽƌƚ;ďĂƐĞůŝŶĞͿϱϬĚĂLJƐdŚƵϬϵͬϮϲͬϭϵtĞĚϭϮͬϬϰͬϭϵ ,ĂďŝƚĂƚDŝƚŝŐĂƚŝŽŶWůĂŶϭϴϬĚĂLJƐdŚƵϬϲͬϮϱͬϮϬtĞĚϬϯͬϬϯͬϮϭϰ͘ϯƵůƚƵƌĂůZĞƐŽƵƌĐĞ/ŶǀĞƐƚŝŐĂƚŝŽŶϱϬĚĂLJƐdŚƵϬϵͬϮϲͬϭϵtĞĚϭϮͬϬϰͬϭϵϰ͘ϰ^ WŚĞĐŬůŝƐƚϴϱĚĂLJƐdƵĞϬϴͬϬϵͬϮϮDŽŶϭϮͬϬϱͬϮϮƌĂĨƚ^ WϮϬĚĂLJƐdƵĞϬϴͬϬϵͬϮϮDŽŶϬϵͬϬϱͬϮϮŝƚLJZĞǀŝĞǁϭϬĚĂLJƐdƵĞϬϵͬϬϲͬϮϮDŽŶϬϵͬϭϵͬϮϮ&ŝŶĂůĨŽƌŝƚLJhƐĞϭϬĚĂLJƐdƵĞϬϵͬϮϬͬϮϮDŽŶϭϬͬϬϯͬϮϮŝƚLJ^ WWƌŽĐĞƐƐͬŶŽƚŝĨŝĐĂƚŝŽŶϰϱĚĂLJƐdƵĞϭϬͬϬϰͬϮϮDŽŶϭϮͬϬϱͬϮϮϰ͘ϱ,LJĚƌĂƵůŝĐWƌŽũĞĐƚƉƉƌŽǀĂůϰϬĚĂLJƐdƵĞϬϵͬϬϲͬϮϮDŽŶϭϬͬϯϭͬϮϮƌĂĨƚƉƉůŝĐĂƚŝŽŶϮϬĚĂLJƐdƵĞϬϵͬϬϲͬϮϮDŽŶϭϬͬϬϯͬϮϮŝƚLJZĞǀŝĞǁϭϬĚĂLJƐdƵĞϭϬͬϬϰͬϮϮDŽŶϭϬͬϭϳͬϮϮ &ŝŶĂůŝnjĞϭϬĚĂLJƐdƵĞϭϬͬϭϴͬϮϮDŽŶϭϬͬϯϭͬϮϮϰ͘ϲ^ƵďŵŝƚƚŽt&tĂŶĚŽŽƌĚŝŶĂƚŝŽŶ,WϰϱĚĂLJƐdƵĞϭϭͬϬϭͬϮϮDŽŶϬϭͬϬϮͬϮϯ,W/ƐƐƵĞĚďLJt&tϱĚĂLJƐdƵĞϬϭͬϬϯͬϮϯDŽŶϬϭͬϬϵͬϮϯϱ͘Ϭ ^ŽŵƉůŝĂŶĐĞϴϬϯĚĂLJƐdŚƵϬϴͬϬϴͬϭϵDŽŶϬϵͬϬϱͬϮϮϱ͘ϭE WŽŽƌĚŝŶĂƚŝŽŶĂŶĚ<ŝĐŬŽĨĨDĞĞƚŝŶŐϴϬϯĚĂLJƐdŚƵϬϴͬϬϴͬϭϵDŽŶϬϵͬϬϱͬϮϮϱ͘ϮŝŽůŽŐŝĐĂůƐƐĞƐƐŵĞŶƚZĞƉŽƌƚϮϵϬĚĂLJƐdŚƵϬϲͬϮϱͬϮϬtĞĚϬϴͬϬϰͬϮϭϱ͘ϯ ŶĚĂŶŐĞƌĞĚ^ƉĞĐŝĞƐĐƚŽŽĚŝŶĂƚŝŽŶ Ɛƚ;ŽƌƉƐǁŝƚŚED&^ͿϭϮϬĚĂLJƐdƵĞϬϯͬϮϮͬϮϮDŽŶϬϵͬϬϱͬϮϮϱ͘ϰ,ĂnjĂƌĚŽƵƐDĂƚĞƌŝĂůƐ/ŶǀĞƐƚŝŐĂƚŝŽŶϭϰϬĚĂLJƐdŚƵϬϲͬϮϱͬϮϬtĞĚϬϭͬϬϲͬϮϭϲ͘ϬϯϬйĞƐŝŐŶϭϯϳĚĂLJƐdƵĞϭϮͬϭϳͬϭϵtĞĚϬϲͬϮϰͬϮϬϳ͘ϬϳϱйĞƐŝŐŶϲϰϱĚĂLJƐdƵĞϬϰͬϭϰͬϮϬDŽŶϭϬͬϬϯͬϮϮϳ͘ϮŝǀŝůĚĞƐŝŐŶϮϯϬĚĂLJƐdƵĞϬϰͬϭϰͬϮϬDŽŶϬϯͬϬϭͬϮϭϳ͘ϭ>ĂŶĚƐĐĂƉĞĞƐŝŐŶϮϯϬĚĂLJƐdƵĞϬϰͬϭϰͬϮϬDŽŶϬϯͬϬϭͬϮϭ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
,' 7DVN1DPH 'XUDWLRQ 6WDUW )LQLVKϳ͘ϯ^ƚƌƵĐƚƵƌĂůĞƐŝŐŶϮϯϬĚĂLJƐdƵĞϬϰͬϭϰͬϮϬDŽŶϬϯͬϬϭͬϮϭϳ͘ϰ'ĞŽƚĞĐŚŶŝĐĂůĞƐŝŐŶϮϯϬĚĂLJƐdƵĞϬϰͬϭϰͬϮϬDŽŶϬϯͬϬϭͬϮϭŝƚLJZĞǀŝĞǁ;ŽĞŝŶŐ͕ŝƌƉŽƌƚ͕^ĞŶŝŽƌĞŶƚĞƌ͕DŝƚŝŐĂƚŝŽŶƉůĂŶͿϴϬĚĂLJƐdƵĞϬϯͬϬϮͬϮϭDŽŶϬϲͬϮϭͬϮϭWƌŽũĞĐƚŵĞŶĚŵĞŶƚϲϬĚĂLJƐdƵĞϬϯͬϭϱͬϮϮDŽŶϬϲͬϬϲͬϮϮϳϱйhƉĚĂƚĞϳϬĚĂLJƐdƵĞϬϲͬϬϳͬϮϮDŽŶϬϵͬϭϮͬϮϮ ŝƚLJZĞǀŝĞǁϭϱĚĂLJƐdƵĞϬϵͬϭϯͬϮϮDŽŶϭϬͬϬϯͬϮϮϴ͘ϬϭϬϬйĞƐŝŐŶͲ/ŵƉƌŽǀĞŵĞŶƚϱϬĚĂLJƐdƵĞϬϭͬϭϬͬϮϯDŽŶϬϯͬϮϬͬϮϯϴ͘ϭ>ĂŶĚƐĐĂƉĞĞƐŝŐŶϰϬĚĂLJƐdƵĞϬϭͬϭϬͬϮϯDŽŶϬϯͬϬϲͬϮϯϴ͘ϮŝǀŝůĞƐŝŐŶϰϬĚĂLJƐdƵĞϬϭͬϭϬͬϮϯDŽŶϬϯͬϬϲͬϮϯϴ͘ϯ^ƚƌƵĐƚƵƌĂůĞƐŝŐŶϰϬĚĂLJƐdƵĞϬϭͬϭϬͬϮϯDŽŶϬϯͬϬϲͬϮϯϴ͘ϯ'ĞŽƚĞĐŚŶŝĐĂůĞƐŝŐŶϰϬĚĂLJƐdƵĞϬϭͬϭϬͬϮϯDŽŶϬϯͬϬϲͬϮϯŝƚLJZĞǀŝĞǁϭϬĚĂLJƐdƵĞϬϯͬϬϳͬϮϯDŽŶϬϯͬϮϬͬϮϯϵ͘ϬhƉĚĂƚĞ>KDZ^ƵďŵŝƚƚĂůĂŶĚWƌĞƉĂƌĞh^ ^ĞĐƚŝŽŶϰϬϴ^ƵďŵŝƚƚĂůϮϱϱĚĂLJƐdƵĞϬϲͬϮϮͬϮϭDŽŶϬϲͬϭϯͬϮϮϵ͘ϭhƉĚĂƚĞ^ƚƌƵĐƚƵƌĂůƚƚĂĐŚŵĞŶƚϰϬĚĂLJƐdƵĞϬϲͬϮϮͬϮϭDŽŶϬϴͬϭϲͬϮϭϵ͘ϮhƉĚĂƚĞ,LJĚƌĂƵůŝĐ ǀĂůƵĂƚŝŽŶϭϰϵĚĂLJƐdƵĞϬϲͬϮϮͬϮϭ&ƌŝϭϭͬϬϰͬϮϮ ϵ͘ϯhƉĚĂƚĞKǀĞƌĂůůĞƌƚŝĨŝĐĂƚŝŽŶZĞƉŽƌƚϰϬĚĂLJƐdƵĞϬϲͬϮϮͬϮϭDŽŶϬϴͬϭϲͬϮϭϵ͘ϰͲŽŵƉŝůĞh^ ^ĞĐƚŝŽŶϰϬϴ^ƵďŵŝƚƚĂůϭϬĚĂLJƐdƵĞϬϴͬϬϯͬϮϭDŽŶϬϴͬϭϲͬϮϭϵ͘ϱZĞƉŽƌƚhƉĚĂƚĞƐĨŽƌůŝŐŶŵĞŶƚƐϭϱϬĚĂLJƐdƵĞϬϴͬϭϳͬϮϭDŽŶϬϯͬϭϰͬϮϮŝƚLJZĞǀŝĞǁƐϱĚĂLJƐdƵĞϬϯͬϭϱͬϮϮDŽŶϬϯͬϮϭͬϮϮh^ ZĞǀŝĞǁ;ϵϬĚĂLJƐĂƐƐƵŵĞĚͿϰϬϴ^ƵďŵŝƚƚĂůϲϬĚĂLJƐdƵĞϬϯͬϮϮͬϮϮDŽŶϬϲͬϭϯͬϮϮdĂƐŬϭϬͲZĞƐƉŽŶĚƚŽ& DŽŵŵĞŶƚƐϴϬĚĂLJƐdƵĞϬϵͬϬϲͬϮϮDŽŶϭϮͬϮϲͬϮϮϭϬ͘ϭ& DŽŵŵĞŶƚZĞƐƉŽŶƐĞƐ;ƵƉƚŽϭϮϬĚĂLJƐĂƐƐƵŵĞĚͿϴϬĚĂLJƐdƵĞϬϵͬϬϲͬϮϮDŽŶϭϮͬϮϲͬϮϮdĂƐŬϭϭŽŶƐƚƌƵĐƚŝŽŶŝĚĚŝŶŐ^ƵƉƉŽƌƚϮϬĚĂLJƐdƵĞϬϯͬϮϭͬϮϯDŽŶϬϰͬϭϳͬϮϯϭϭ͘ϭŽŶƐƚƌƵĐƚŝŽŶŝĚĚŝŶŐ^ƵƉƉŽƌƚϮϬĚĂLJƐdƵĞϬϯͬϮϭͬϮϯDŽŶϬϰͬϭϳͬϮϯdĂƐŬϭϮĚĚŝƚŝŽŶĂůtŽƌŬϭϬϵϱĚĂLJƐ͍dƵĞϬϰͬϭϰͬϮϬDŽŶϬϲͬϮϰͬϮϰdĂƐŬϭϯ^ƵƉƉŽƌƚƵƌŝŶŐŽŶƐƚƌƵĐƚŝŽŶĂŶĚZĞĐŽƌĚƌĂǁŝŶƐϯϬϱĚĂLJƐdƵĞϬϰͬϮϱͬϮϯDŽŶϬϲͬϮϰͬϮϰ^ƵƉƉŽƌƚƵƌŝŶŐŽŶƐƚƌƵĐƚŝŽŶϮϲϱĚĂLJƐdƵĞϬϰͬϮϱͬϮϯDŽŶϬϰͬϮϵͬϮϰZĞĐŽƌĚƌĂǁŝŶŐƐĂŶĚ,ŝŐŚWŽŝŶƚ^ƵƌǀĞLJϰϬĚĂLJƐdƵĞϬϰͬϯϬͬϮϰDŽŶϬϲͬϮϰͬϮϰWƌŽũĞĐƚŽŶƐƚƌƵĐƚŝŽŶϮϳϬĚĂLJƐdƵĞϬϰͬϭϴͬϮϯDŽŶϬϰͬϮϵͬϮϰZĞǀŝĞǁŝĚƐĂŶĚǁĂƌĚϰϬĚĂLJƐdƵĞϬϰͬϭϴͬϮϯDŽŶϬϲͬϭϮͬϮϯŽŶƐƚƌƵĐƚŝŽŶϮϯϬĚĂLJƐdƵĞϬϲͬϭϯͬϮϯDŽŶϬϰͬϮϵͬϮϰ >ĞǀĞĞĂŶĚtĂůůtŽƌŬDŝƐĐϭϮϬĚĂLJƐdƵĞϬϲͬϭϯͬϮϯDŽŶϭϭͬϮϳͬϮϯ ŽĞŝŶŐtĂƚĞƌ^LJƐƚĞŵKƵƚĂŐĞϮϭĚĂLJƐ^ƵŶϭϮͬϬϯͬϮϯ&ƌŝϭϮͬϮϵͬϮϯ >ŽŐĂŶǀĞͬ ͘WĞƌŝŵĞƚĞƌtĂůůϯϬĚĂLJƐdƵĞϭϭͬϮϴͬϮϯDŽŶϬϭͬϬϴͬϮϰ ůĞĂŶƵƉϮϬĚĂLJƐdƵĞϬϭͬϬϵͬϮϰDŽŶϬϮͬϬϱͬϮϰ sĞŐŝƚĂƚŝŽŶDŝƚŝŐĂƚŝŽŶͬZĞƐƚƌĂƚŝŽŶϲϬĚĂLJƐdƵĞϬϮͬϬϲͬϮϰDŽŶϬϰͬϮϵͬϮϰ ŽŶƐƚƌƵĐƚŝŽŶŽŵƉůĞƚĞϬĚĂLJƐDŽŶϬϰͬϮϵͬϮϰDŽŶϬϰͬϮϵͬϮϰ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
C-11 April 2022
EXHIBIT C-6
CEDAR RIVER 205 PROJECT LEVEE CERTIFICATION
FEE
C-2 April 2022
C-3 April 2022
C-4 April 2022
Attach 2-1 June 2019
ATTACHMENT 1
ANTICIPATED CEDAR RIVER 205 PROJECT LEVEE
CERTIFICATION
Additional Sheet List
Sheet List Number of
Sheets Description
Landscape Plans
Plans 6 Senior Center and Mitigation Areas
Details 2 Senior Center and Mitigation Areas
Total (Additional) 8