HomeMy WebLinkAboutR-2013-081 Levee Interior Drainage Analysis Agreement with Akel Engineering GroupRESOLUTION NO. R- 2013 -081
A RESOLUTION authorizing the City Manager to execute a Professional Services
Agreement with Akel Engineering Group in an amount not to
exceed $40,000 for an analysis of the Interior Drainage of Yakima
County Public Works Levee Protection of the Northern and
Eastern Portions of the City of Yakima
WHEREAS, the City of Yakima (City) owns and operates stormwater collection facilities
in accord with applicable Federal, State and Local regulations; and
WHEREAS, the Yakima County Public Services Division has requested an analysis of
the City's interior drainage system adjacent to the Yakima County (County) owned levees
protecting the northern and eastern edges of the City; and
WHEREAS, the County must develop and submit technical findings as part of a Levee
System Evaluation, including the City's interior drainage, with the Federal Emergency
Management Agency (FEMA) for levee certification; and
WHEREAS, successful completion of the Levee System Evaluation is necessary for the
levees to be accredited with the new FEMA Digital Flood Insurance Rate Maps; and
WHEREAS, the Army Corps of Engineers requires the County to complete this
evaluation by August 31, 2013; and
WHEREAS, the City desires to provide its interior drainage system information to the
County to assist with the evaluation of the County owned Levee System; and
WHEREAS, the State of Washington requires performance of these services by a
Professional Licensed Engineer, and,
WHEREAS, the City has completed the process of competitively selecting professional
engineering services by virtue of qualifications in compliance with applicable State requirements
for acquisition of professional services, and
WHEREAS, Akel Engineering Group, Inc. has been selected to provide professional
engineering services for the City's Stormwater Program by providing a hydrologic model and
technical findings of the City's interior drainage system, now therefore,
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF YAKIMA:
The City Manager is hereby authorized to execute the Professional Services Agreement
with Akel Engineering Group in the amount not to exceed Forty Thousand Dollars ($40,000) to
provide technical findings of the City's interior drainage to assist Yakima County's requirement
for levee certification, a copy of the Agreement with which Exhibit "A" and "B" are attached
hereto and by reference made a part hereof, now, therefore,
ADOPTED BY THE CITY COU
AK 1M1
2nd day of July, 2013.
_ v ' -v V
A T. * ` Micah Cawley,
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SonyNClaar Tee, City Cle*-- �Z
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CITY OF YAKIMA AND AKEL ENGINEERING GROUP
PROFESSIONAL SERVICES AGREEMENT
THIS PROFESSIONAL SERVICES AGREEMENT (hereinafter "Agreement ") is
made and entered into by and between the City of Yakima, a Washington municipal
corporation (hereinafter the "City "), and Akel Engineering Group, Inc., a company
licensed to do business in Washington (hereinafter the "Engineer ").
WHEREAS, the City desires to retain the Engineer to develop an analysis for the
interior drainage of Yakima County Public Works levee protecting the eastern portion of
the City; and
WHEREAS, the Engineer has the experience and expertise necessary to provide
such independent engineering services and is willing to provide the services in
accordance with the terms and conditions of this Agreement;
NOW, THEREFORE, in consideration of the mutual covenants, promises, and
agreements set forth herein, it is agreed by and between the City and the Engineer as
follows:
1. Scope of Services. The Engineer shall provide engineering services, referred to
as Basic Services, related to analysis and development of technical finding required for
Yakima County Levee certification. Such Basic Services are set forth and described as
Tasks 1 through 8 (with Task 8 being optional) in Exhibit A attached hereto and
incorporated herein by this reference. The scope of engineering services shall include
indentifying the source of flooding, extent of the floodwaters, determining the water
surface elevation of the base flood if the average flooding depth is greater than 1 foot,
evaluate the joint probability of interior and exterior flooding and evaluation of the
capacity of evacuation facilities along the levees. The City will direct the Engineer when
to proceed with the scope of work. In the event the city elects, in its sole discretion, to
accomplish Task 8, it will give separate written direction to the Engineer to proceed with
such work. The City's estimated date of completion is twelve (12) weeks from the date
of work start.
2. Additional Services.
a. The City and Engineer agree that not all services performed by the Engineer
can be defined in detail at the time this Agreement is executed and that Additional
Services not covered in Exhibit A may be needed during performance of the Agreement.
City may, at any time, by written order, direct Engineer to revise portions of Basic
Services previously completed in a satisfactory manner, delete portions of Basic
Services, suspend Basic Services, terminate Basic Services or request that Engineer
perform Additional Services beyond the scope of Basic Services. Such changes
hereinafter shall be referred to as "Additional Services ".
b. If such Additional Services cause an increase or decrease in Engineer's cost
of, or time required for, performance of any services under this Agreement, a contract
price and /or completion time adjustment pursuant to this Agreement may be made and
this Agreement may be modified in writing accordingly.
c. Compensation for each such request for Additional Services will be
negotiated by the City and the Engineer according to the provisions set forth in Section
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4. Engineer shall not perform any Additional Services until authorized by City in writing.
Once so authorized, such Additional Services shall be considered part of Basic Services.
If mutual agreement on compensation or time adjustment cannot be concluded,
Engineer is required to perform the Basic and Additional Services, reserving a right for
equitable adjustment; provided, that in no event shall any amount be allowed for
anticipated profit or unperformed Basic Services or Additional Services. If City and
Engineer cannot agree upon an equitable adjustment in the time for Additional Services
beyond the scope of Basic Services within thirty (30) days of the Engineer's written
request for equitable adjustment, performance of such Additional Services may be
suspended by Engineer until City and Engineer mutually agree upon the time
adjustment.
3. Term. The term of this Agreement shall commence upon execution hereof and
shall terminate at the time of completion of all services /tasks required hereunder unless
terminated sooner by either party in accordance with Section 20. The Engineer shall
provide such services as are described on executed task orders in accordance with the
time schedule set forth in Exhibit A. When directed by the City, the Engineer shall
proceed in a timely and diligent manner to provide all services required hereunder.
4. Consideration.
a. The City shall pay the Engineer for basic services described in Exhibit A, in
accordance with the payment schedule set forth in Exhibit B attached hereto and
incorporated herein by this reference, based on the Engineer's direct salaries plus Direct
Expenses, plus applicable sales, use, value added, business transfer, gross receipts or
other similar taxes. Direct salaries are the amount of wages or salaries paid Engineer's
employees for basic services directly performed and described in Exhibit A, exclusive of
all payroll related taxes, payments, premiums and benefits. Direct salaries may be
increased once on an annual basis. Unless the parties otherwise modify this Agreement
in writing, the total compensation paid to the Engineer for all services provided under this
Agreement shall not exceed Forty Thousand Dollars ($40,000).
b. Direct Expenses are those necessary costs and charges incurred for Basic
Services including, but not limited to: (1) the direct costs of transportation, meals and
lodging; (2) insurance, letters of credit, bonds, and equipment and supplies, specific to
the Basic Services and approved in advance by the City; and (3) Engineer's direct costs
for subcontracted professional services, laboratory tests, analysis, printing and
reproduction services, and CADD services.
c. Travel costs, including transportation, lodging, subsistence and incidental
expenses incurred by employees of the Engineer and each of the Sub - consultants in
connection with Basic Services, shall be subject to the following;
1) That a Maximum of U.S. INTERNAL REVENUE SERVICE allowed cents
per mile will be paid for the operation, maintenance and depreciation
costs of company or individually owned vehicles for that portion of time
they are used for Basic Services. The Engineer, whenever possible, will
use the least expensive form of ground transportation.
2) That reimbursement for meals inclusive of tips shall not exceed a
maximum of $40 per day per person. This rate may be adjusted on a
yearly basis
3) Those accommodations shall be at a reasonably priced hotel /motel.
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4) That air travel shall be by coach class, and shall be used only when
absolutely necessary.
d. Telephone charges, in -house computer charges, in -house reproduction
charges, first class postage, overnight mail and shipping and FAX charges are not
reimbursable Direct Expenses, but are considered fully reimbursed as a part of
Subsection 5.1 Direct Salary factor.
e. Professional Sub - Consultants. Professional Sub - consultants are those costs
for Engineering, management consulting, surveying, geotechnical services and similar
professional services approved in advance by the City. Reimbursement for Professional
Sub - consultants will be on the basis of 1.10 times the actual costs billed by the
Professional Sub - consultant for services provided to the City through this Agreement.
f. The Engineer shall submit to the City monthly invoices itemizing tasks
accomplished and percent completed to date. Upon receipt of said monthly invoice, the
City shall make payment to the Engineer within thirty (30) calendar days; provided,
however, that all payments are expressly conditioned upon the Engineer's performing
services that are satisfactory to the City.
g. The Engineer shall maintain adequate files and records to substantiate all
amounts itemized on the monthly invoices. In the event that either party exercises its
right to terminate this Agreement in accordance with Section 20, the Engineer shall be
compensated in accordance with the above terms for all satisfactory services provided to
the City up to the effective Agreement termination date.
5. Information Provided by the City. The Engineer shall provide guidance to the
City in determining the data required for purposes of the contemplated services. The
City agrees to use reasonable efforts to provide data and information specifically
requested by the Engineer.
6. Status of Engineer. The Engineer and the City understand and expressly agree
that the Engineer is an independent contractor in the performance of each and every
part of this Agreement. No officer, employee, volunteer and /or agent of Engineer shall
act on behalf of or represent him or herself as an agent or representative of the City.
The Engineer, as an independent contractor, assumes the entire responsibility for
carrying out and accomplishing the services required under this Agreement. The
Engineer expressly represents warrants and agrees that its status as an independent
contractor in the performance of the work and services required under this Agreement is
consistent with and meets the six -part independent contractor test set forth in
RCW 51.08.195. The Engineer and its officers, employees, volunteers, agents and /or
subcontractors shall make no claim of City employment nor shall claim against the City
any related employment benefits, social security, and /or retirement benefits. Nothing
contained herein shall be interpreted as creating a relationship of servant, employee,
partnership or agency between the Engineer and the City.
7. Inspection and Audit. The Engineer shall maintain books, accounts, records,
documents and other evidence pertaining to the costs and expenses allowable and
consideration paid under this Agreement in accordance with generally accepted
accounting practices. All such books of account and records required to be maintained
by this Agreement shall be subject to inspection and audit by representatives of the City
and /or the Washington State Auditor at all reasonable times and the Engineer shall
afford the proper facilities for such inspection and audit. Such books of account and
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records may be copied by representatives of the City and /or the Washington State
Auditor where necessary to conduct or document an audit. The Engineer shall preserve
and make available all such books of account and records for a period of three (3) years
after final payment under this Agreement.
8. Taxes and Assessments. The Engineer shall be solely responsible for
compensating its employees, agents, and /or subcontractors and for paying all related
taxes, deductions, and assessments, including but not limited to federal income tax,
FICA, social security tax, assessments for unemployment and industrial injury and other
deductions from income which may be required by law or assessed against either party
as a result of this Agreement. In the event the City is assessed a tax or assessment as
a result of this Agreement, the Engineer shall pay the same before it becomes due.
9. Nondiscrimination Provision. During the performance of this Agreement,
Engineer shall not discriminate in violation of any applicable federal, state and /or local
law or regulation on the basis of age, sex, race, creed, religion, color, national origin,
marital status, disability, honorably discharged veteran or military status, pregnancy,
sexual orientation and any other classification protected under federal, state, or local
law. This provision shall include but not be limited to the following: employment,
upgrading, demotion, transfer, recruitment, advertising, layoff or termination, rates of pay
or other forms of compensation, selection for training and the provision of services under
this Agreement.
10. The Americans with Disabilities Act. The Engineer shall comply with the
Americans with Disabilities Act of 1990, 42 U.S.C. § 12101 et seq. (ADA) and its
implementing regulations and Washington State's anti - discrimination law as contained in
RCW Chapter 49.60 and its implementing regulations with regard to the activities and
services provided pursuant to this Agreement. The ADA provides comprehensive civil
rights to individuals with disabilities in the area of employment, public accommodations,
public transportation, state and local government services and telecommunications
11. Compliance with Law. The Engineer agrees to perform those services under
and pursuant to this Agreement in full compliance with any and all applicable laws, rules,
and regulations adopted or promulgated by any governmental agency or regulatory
body, whether federal, state, local or otherwise.
12. No Conflict of Interest. The Engineer covenants that neither it nor its
employees have any interest and shall not hereafter acquire any interest, direct or
indirect, which would conflict in any manner or degree with the performance of this
Agreement. The Engineer further covenants that it will not hire anyone or any entity
having such a conflict of interest during the performance of this Agreement.
13. No Insurance. It is understood the City does not maintain liability insurance for
the Engineer and its officers, directors, employees and agents.
14. Indemnification.
a. The Engineer agrees to hold harmless and indemnify the City, its elected and
appointed officials, officers, employees, agents and volunteers from and against any
actions, claims, liability, damages, judgments, costs of defense and expenses (including
reasonable attorney's fees) if judged as damages which result from or arise out of the
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negligent acts, errors or emissions of the Engineer, its officers, agents, employees or
subcontractors in connection with or incidental to the performance or non - performance
of this Agreement.
b. The City agrees to hold harmless and indemnify the Engineer, its officers,
employees, and agents, from and against any and all suits, actions, claims, liability,
damages, judgments, costs of defense and expenses (including reasonable attorney's
fees) which result from or arise out of the negligence of the City, its officers, agents,
employees or subcontractors, in connection with or incidental to the performance or non-
performance of this Agreement.
c. In the event that both the Engineer and the City are negligent, each party
shall be liable for its contributory share of negligence for any resulting suits, actions,
claims, liability, damages, judgments, costs and expenses (including reasonable
attorney's fees).
d. The foregoing indemnity is specifically and expressly intended to constitute a
waiver of the Engineer's immunity under Washington's Industrial Insurance Act, RCW
Title 51, as respects the other party only, and only to the extent necessary to provide the
indemnified party with a full and complete indemnity of claims made by the Engineer's
employees. The parties acknowledge that these provisions were specifically negotiated
and agreed upon by them.
e. Nothing contained in this Section or this Agreement shall be construed to
create a liability or a right of indemnification in any third party.
f. This Section of the Agreement shall survive the term or expiration of this
Agreement and shall be binding on the parties to this Agreement.
15. Insurance Provided by Engineer.
a. Professional Liability Insurance. On or before the date this Agreement is fully
executed by the parties, the Engineer shall provide the City with a certificate of
insurance as evidence of professional liability coverage with a limit of at least One Million
Dollars ($1,000,000.00) for each wrongful act and an annual aggregate limit of at least
Two Million Dollars ($2,000,000.00). The certificate shall clearly state who the provider
is, the amount of coverage, the policy number, and when the policy and provisions
provided are in effect. The insurance shall be with an insurance company rated A -VII or
higher in Best's Guide. If the policy is on a claim made basis, the retroactive date of the
insurance policy shall be on or before the date this contract is executed by both parties
hereto, or shall provide full prior acts coverage. The insurance coverage or substantially
identical coverage sufficient to fully satisfy these requirements shall remain in effect
during the term of this Agreement and for a minimum of three (3) years following the
termination of this Agreement.
b. Commercial Liability Insurance On or before the date this Agreement is fully
executed by the parties, the Engineer shall provide the City with a certificate of
insurance as proof of commercial liability insurance with a minimum liability limit of One
Million Dollars ($1,000,000.00) per occurrence /aggregate limit bodily injury and property
damage. The certificate shall clearly state who the provider is, the amount of coverage,
the policy number, and when the policy and provisions provided are in effect. Said
policy shall be in effect for the duration of this Agreement. The policy shall name the
City, its elected officials, officers, agents, and employees as additional insured as to this
project only and shall contain a clause that the insurer will not cancel or reduce in limits
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the insurance without first giving the City thirty (30) calendar days' prior written notice.
The insurance shall be with an insurance company or a company rated A -VII or higher in
Best's Guide and admitted in the State of Washington.
c. Commercial Automobile Liability Insurance. On or before the date this
Agreement is fully executed by the parties, the Engineer shall provide the City with a
certificate of insurance as proof of commercial automobile liability insurance with a
minimum liability limit of One Million Dollars ($1,000,000.00) per occurrence /aggregate
limit bodily injury and property damage. The certificate shall clearly state who the
provider is, the amount of coverage, the policy number, and when the policy and
provisions provided are in effect. Said policy shall be in effect for the duration of this
Agreement. The policy shall name the City, its elected officials, officers, agents, and
employees as additional insured as to this project only and shall contain a clause that
the insurer will not cancel or reduce in limits the insurance without first giving the City
thirty (30) calendar days' prior written notice. The insurance shall be with an insurance
company or a company rated A -VII or higher in Best's Guide and admitted in the State of
Washington.
d. Insurance Provided by Subcontractors The Engineer shall ensure that all
subcontractors it utilizes for work/services required under this Agreement shall comply
with all of the above insurance requirements. However, professional liability will not be
required unless the subcontractor is involved in design or Engineering services.
16. Delegation of Professional Services. The services provided for herein shall be
performed by the Engineer and no person other than regular associates or employees of
the Engineer shall be engaged upon such work or services except upon written approval
of the City.
17. Assignment. This Agreement, or any interest herein or claim hereunder, shall
not be assigned or transferred in whole or in part by the Engineer to any other person or
entity without the prior written consent of the City. In the event that such prior written
consent to an assignment is granted, then the assignee shall assume all duties,
obligations and liabilities of the Engineer stated herein.
18. Waiver of Breach. A waiver by either party hereto of a breach by the other party
hereto of any covenant or condition of this Agreement shall not impair the right of the
party not in default to avail itself of any subsequent breach thereof. Leniency, delay or
failure of either party to insist upon strict performance of any agreement, covenant or
condition of this Agreement, or to exercise any right herein given in any one or more
instances, shall not be construed as a waiver or relinquishment of any such agreement,
covenant, condition or right.
19. Dispute Resolution. The parties shall strive to resolve all conflicts through
negotiation in good faith as the preferred approach to dispute resolution and may
consider mediation, or other form of dispute resolution, as a supplement or alternative
where mutually agreed to by the Parties in writing.
20. Termination. Either party may terminate
without cause, by providing the other party with
calendar days prior to the termination date.
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this Agreement at any time, with or
written notice of termination ten (10)
21. Severability. If any portion of this Agreement is changed per mutual agreement
or any portion is held invalid, the remainder of the Agreement shall remain in full force
and effect.
22. Notices. Unless stated otherwise herein, all notices and demands shall be in
writing and sent or hand delivered to the parties to their addresses as follows:
TO City: Shelley Willson, Utility Engineer
City of Yakima, Wastewater
2220 East Viola
Yakima, WA 98901
TO Engineer: Tony Akel, RE
Akel Engineering Group, Inc.
7433 North First St, Suite 103
Fresno, CA 93720
or to such other addresses as the parties may hereafter designate in writing. Notices
and /or demands shall be sent by registered or certified mail, postage prepaid or hand
delivered. Such notices shall be deemed effective when mailed or hand delivered at the
addresses specified above.
23. Third Parties. The City and the Engineer are the only parties to this Agreement
and are the only parties entitled to enforce its terms. Nothing in this Agreement gives, is
intended to give, or shall be construed to give or provide any right or benefit, whether
directly or indirectly or otherwise, to third persons.
24. Drafting of Agreement. Both the City and the Engineer have participated in the
drafting of this Agreement. As such, it is agreed by the parties that the general contract
rule of law that ambiguities within a contract shall be construed against the drafter of a
contract shall have no application to any legal proceeding, arbitration and /or action in
which this Agreement and its terms and conditions are being interpreted and /or
enforced.
25. Integration. This written document constitutes the entire Agreement between
the City and the Engineer. There are no other oral or written agreements between the
parties as to the subjects covered herein. No changes or additions to this Agreement
shall be valid or binding upon either party unless such change or addition be in writing
and executed by both parties.
26. Modification. Either party may request modifications to this Agreement but no
proposed modifications to this Agreement shall be valid or binding upon either party
unless such modification is in writing and executed by both parties.
27. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Washington.
28. Venue. The venue for any action to enforce or interpret this Agreement shall lie
in the Superior Court of Washington for Yakima County, Washington.
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28. Venue. The venue for any action to enforce or interpret this Agreement shall lie
in the Superior Court of Washington for Yakima County, Washington.
29. Counterparts. This Agreement may be executed in one or more counterparts,
each of which shall be deemed an original, but all of which shall constitute one and the
same Agreement.
CITY OF Y IM
By: G•
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Date: —1-9-(
City Mana?pf MA
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So 4a Claar Tee, City Clerk
City Contract No.
City Resolution No.
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City of Yakima and Akel Group Engineering
Professional Services Agreement
AKEL ENGINEERING GROUP, INC
By:
6/15-)/ 2e i3
EXHIBIT A
SCOPE OF WORK
TASK 1 — DATA COLLECTION AND ASSUMPTIONS
This task includes collecting information relevant to the analysis. Gate information is
needed for each gate through the levees to be evaluated. Gate information can be collected
using survey form to be supplied by Akel Engineering. Additionally, information is needed to
determine the performance of the lakes in and around the levee system. This information
can be collected using a second data collection form that will be provided by Akel
Engineering.
The following drainage basins, identified in the City of Yakima 2013 Stormwater Collection
System Master Plan, contribute flows impacting the levees:
Basin
Assumptions
Data Needs
Basin NA — Naches River at
• Outlet: elevation, size,
Bergland Lake.
and backflow preventer
• Typical and highest
observed water level
(historical data ?)
Basin YN — Boise Cascade
• Gate size verification
Ponds.
through levee
Basin YI — Willow /Fruitvale
• Pipes are undersized, and
• Pipe size verification and
Canal Storm Drain.
flow may backup before
if backflow preventer is
reaching the levee
present
Basin YG — Wal -Mart
• Chain of floodplains
• Outlet: elevation, size,
Drainage Ditch.
interconnected to
and backflow preventer
Buchanan Lake
• Typical and highest
• Pipes are undersized, and
observed water level
flow may backup before
(historical data ?)
reaching the levee
Basin YF — Buchanan Lake.
• Outflow from Lake flows
• Outlet: elevation, size,
south to levee end at Nob
and backflow preventer
Hill Blvd
Typical and highest
observed water level
(historical data ?)
Basin YB — Arboretum.
• Collects overflow from YG
• Outlet: elevation, size,
and YF
and backflow preventer
• Mapped as FEMA Zone
• Typical and highest
May 23, 2013
Page 2
TASK 2 — DEVELOP FLOOD RUNOFF HYDROGRAPHS
This task includes developing hydrologic models with boundary conditions at the outflow
control structures to meet the highest value generated by either of: 1) the summer
cloudburst, or 2) the winter storm with snowmelt. The existing hydrologic models developed
for the 2013 Stormwater Collection System Master Plan are considered suitable for this
evaluation and will be used with minor revisions.
Hydrographs will be generated from existing land use, and will be used for evaluating the
following:
• Existing stormwater collection system without improvements
• Stormwater collection system with the proposed master plan improvements.
TASK 3 — EVALUATE EXTENT OF FLOODING
This task consists of developing the 100 -year water surface elevation if the average depth of
flooding exceeds 1.0 feet. The existing available contour maps for the City of Yakima are
based on 2 -foot intervals, and will be used for this task. More accurate elevations may be
eventually required to determine actual flood risk to structures.
Extent of flooding will be evaluated, especially in the case of destructive flood levels, based
on the following:
1. An extent of flooding over 1 -foot map will be developed based on model
hydrographs at the levee.
2. Additional improvements may be recommended to mitigate the flooding.
TASK 4 — DETERMINE JOINT PROBABILITY OF FLOWS
This task includes determining a joint probability of critically high river flows and interior
flood events.
A 100 -year interior flood event would normally be independent of winter or spring snowmelt
flood flows on the Yakima and Naches Rivers. The most likely interior flood event would
result from summer cloudbursts. However, long periods of high flow on the Yakima River,
which would also cause flooding at the Naches River confluence, could occur at the same
time as an interior flood event, but with a low probability. The base flood interior design
storm recurrence will be adjusted if necessary.
River flows which would influence evacuation performance of the interior drainage facilities
will be determined.
AE
observed water level
(historical data?)
TASK 2 — DEVELOP FLOOD RUNOFF HYDROGRAPHS
This task includes developing hydrologic models with boundary conditions at the outflow
control structures to meet the highest value generated by either of: 1) the summer
cloudburst, or 2) the winter storm with snowmelt. The existing hydrologic models developed
for the 2013 Stormwater Collection System Master Plan are considered suitable for this
evaluation and will be used with minor revisions.
Hydrographs will be generated from existing land use, and will be used for evaluating the
following:
• Existing stormwater collection system without improvements
• Stormwater collection system with the proposed master plan improvements.
TASK 3 — EVALUATE EXTENT OF FLOODING
This task consists of developing the 100 -year water surface elevation if the average depth of
flooding exceeds 1.0 feet. The existing available contour maps for the City of Yakima are
based on 2 -foot intervals, and will be used for this task. More accurate elevations may be
eventually required to determine actual flood risk to structures.
Extent of flooding will be evaluated, especially in the case of destructive flood levels, based
on the following:
1. An extent of flooding over 1 -foot map will be developed based on model
hydrographs at the levee.
2. Additional improvements may be recommended to mitigate the flooding.
TASK 4 — DETERMINE JOINT PROBABILITY OF FLOWS
This task includes determining a joint probability of critically high river flows and interior
flood events.
A 100 -year interior flood event would normally be independent of winter or spring snowmelt
flood flows on the Yakima and Naches Rivers. The most likely interior flood event would
result from summer cloudbursts. However, long periods of high flow on the Yakima River,
which would also cause flooding at the Naches River confluence, could occur at the same
time as an interior flood event, but with a low probability. The base flood interior design
storm recurrence will be adjusted if necessary.
River flows which would influence evacuation performance of the interior drainage facilities
will be determined.
May 23, 2013
Page 3
TASK 5 — DETERMINE CAPACITY OF EVACUATION FACILITIES
This task consists of determining the capacity of available evacuation facilities. Information
needed to complete this task includes these facilities' elevations, sizes, and controls.
This task assumes City staff will provide the information on a form developed to assist staff
in collecting the information.
TASK 6 — MAP FLOODING ZONES
This task includes preparing the extent of the interior flooding over 1 -foot during the 100 -
year event, for the following conditions:
• Existing land use, existing facilities with no improvements, with evacuation gates
open.
• Existing land use, existing facilities with no improvements, with evacuation gates
closed.
• Existing land use, existing facilities with proposed master plan improvements, with
evacuation gates open.
• Existing land use, existing facilities with proposed master plan improvements, with
evacuation gates closed.
TASK 7 — PREPARE REPORT
This task includes developing a letter report documenting assumptions included in the
interior drainage evaluation of the Yakima County Public Works levee, and developing
exhibits showing the extent of flooding for the 100 -year water surface elevation.
TASK 8 — SITE INSPECTION AND VISUAL SURVEY (OPTIONAL)
This task includes performing a visual inspection of major stormwater runoff receiving water
bodies, particularly Rotary Lake, Bergland Lake, Boise - Cascade site, and Buchanan Lake.
These lakes were not inspected during the preparation of the master plan as they are part of
the floodplain management.
DELIVERABLES
• Mapping of extent of flooding of the 100 -year water surface elevation, if average is
above 1.0 feet
• Electronic Copy (PDF) of the Final Report
FEE ESTIMATE
The fee estimate includes the level of effort to complete the work tasks, and is attached to
this proposal.
May 23, 2013
Page 4
SCHEDULE
The Draft Report will be completed within 12 weeks from the notice to proceed. A Final
Report will be submitted within one week of receiving City review comments.
Should you need additional information, or have questions regarding this proposal, please
do not hesitate to call me.
May 23, 2013
Page 5
Exhibit BA
Hours
Costs
as
k* Task Description
0
CL
Total
No
n
Cost
•:
::
Task 1 Data Collection and
1
6
$758
$110
$879
Assumptions
Task 2 Develop Flood Runoff
2
$196
$2,640
$3,100
Hydrographs
Task 3 Evaluate Extent of
1
16
$1,738
$2,200
$4,158
Flooding
Task 4 Determine Joint
20
$1,960
$2,640
$4,864
Probability of Flows
Task 5 Determine Capacity of
1
24
$2,522
$2,090
$4,821
Evacuation Facilities
Task 6 Map Flooding Zones
1
4
60
$5,842
$5,842
Task 7 Prepare Report
4
24
8 4
$4,008
$1,000
$5,008
Task 8 Site Inspection and
Visual Survey (optional)
16
16
$4,288
$2,200 $2,100
$8,808
Total (Tasks 1 through
8
96
68
4
$17,024
$9,680
$1,000
$28,672
7)
Total (Tasks 1 though
24
112
68
4
$21,312
$11,880
$3,100
$37,480
7, plus Task 8)
BUSINESS OF THE CITY COUNCIL
YAKIMA, WASHINGTON
AGENDA STATEMENT
Item No.5
For Meeting of: 7/2/2013
ITEM TITLE: Resolution authorizing a Professional Services Agreement
with Akel Engineering Group in an amount not to exceed
$40,000 for an analysis of the Interior Drainage of Yakima
County Public Works Levee Protection of the Northern and
Eastern Portions of the City of Yakima.
SUBMITTED BY: Debbie Cook, Utilities & Engineering Director
Scott Schafer, Wastewater Division Manager
Shelley Willson, Wastewater Utility Engineer
SUMMARY EXPLANATION:
Yakima County Public Services Division has requested an analysis of the City of Yakima's
(City's) interior drainage system adjacent to the Yakima County (County) owned levees that
protect the northern and eastern edges of the City. Levee certification with the Federal
Emergency Management Agency (FEMA) requires the County to develop and submit technical
findings, including the interior drainage of the City as required in accordance with 44 CFR
Section 65.10. If approved by FEMA, the levees will be accredited on the new FEMA Digital
Flood Insurance Rate Maps (DFIRMS).
The Army Corps of Engineers notified the County that such levee certification will be deemed
invalid without completion of this analysis by August 31, 2013. In May 2013, the County
requested for the City to provide the analysis of its interior drainage system as part of the
required technical findings by the August deadline. This places a time constriction on the City to
provide such data.
Currently, Akel Engineering Group is completing a Comprehensive Stormwater Capacity
Analysis for the City. Akel Engineering Group will use this information to develop the required
hydrologic model and provide the technical findings of the City's interior drainage system
necessary to respond to the County's request. It will take 12 weeks to complete such work. The
terms of the Agreement would be in an amount not to exceed $40,000. (See attached
Agreement with Exhibit "A" and "B ")
Exhibit "A" of the Agreement describes the Scope of Work in more detail.
Exhibit "B" of the Agreement describes the Schedule of Rates.
Resolution: X
Other (Specify):
Contract: X
Ordinance:
Contract Term:
Start Date: July 2013 End Date: September 2013
Item Budgeted: Yes Amount: $40,000
Funding Source/Fiscal Impact: Stormwater Capital Fund 442
Strategic Priority: Public Safety
Insurance Required? Yes
Mail to: Tony Akel, P.E., Akel Engineering Group, Inc., 7433 North First
St., Suite 103, Fresno, CA. 93720
Phone:
APPROVED FOR
SUBMITTAL: City Manager
RECOMMENDATION:
Staff respectfully requests City Council approve the Resolution authorizing the City Manager to
execute the accompanying contract.
IMMEM
Resolution Abel Interior Drainage
Abel Agreement - City Interior Drainage
Exhibit A & B - Akel - City Interior Drainage