HomeMy WebLinkAbout1992-04-14; City Council; 11635; APPROVAL OF A CONSULTANT AGREEMENT FOR BUENA VISTA CREEK CHANNEL REPAIRS PROJECT NO. 3385r -
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PROJECT NO. 3385 CITY MG~
APPROVAL OF A CONSULTANT AGREEMENT FOR BUENA VISTA CREEK CHANNEL REPAIRS CITY ATT+ MTG. 4/14/92
ENG DEPT.
RECOMMENDED ACTION:
Adopt Resolution No.92-1OL approving a consultant agreement for Buena Vista Creek Channel Repairs, Project No. 3385.
ITEM EXPLANAT ION :
Buena Vista Creek Channel is a concrete-lined trapezoidal channel located near the northern City boundary, beginning just east of El Camino Real and extending west to its terminus at Buena Vista Lagoon. The Buena Vista Creek Channel Repairs project is limited to the portion of the channel north of Haymar Drive, beginning at the El Camino Real bridge structure easterly to the point where the channel transitions from a natural dirt channel to a concrete-1 ined structure.
At the transition area, the concrete channel begins with a cutoff wall that was constructed to direct stream flows to the top of the channel. The cutoff wall, which is approximately four (4) feet deep, has been undermined causing flow to be directed under the channel surface. This misguided flow has scoured material out from under the channel resulting in the lifting of several large concrete sections (30' x 50') a distance ranging from two (2) to four (4) inches.
Staff has performed a surface investigation of the channel site and recommends that rock armor be placed in front of the existing cutoff wall and lengthening a 30 foot long portion of the cutoff wall from four (4) to eight (8) feet. Additional subsurface investigations will be required to determine the total extent of undermining and to what extent that buried utilities in the vicinity have been affected. Also, there is concern about degradation of soils under the channel lining around the bridge abutments and columns at El Camino Real.
This project will provide for further channel analysis, design of a new cutoff
wall, and methods for filling the voids and stabilizing the channel Recommendations will be provided for more extensive channel improvements, if warranted.
Ten (10) consulting engineering firms were recently solicited for this project, anc' four (4) proposals were received. Following a review of all four (4) proposals, the firm of Woodward-Clyde Consultants was selected as the best qualifiec engineering firm for this project.
The scope of work outlined in the attached consultant agreement between the Citj and Woodward-Clyde Consultants identifies the following tasks:
0 Review plans, perform field surveys, and evaluate the concrete channel, tht sewer pipe line, and other existing structures.
Evaluate channel hydraulics. Based upon City provided data for the 100-yea) frequency storm flows, determine the design velocities and prepare thc design of a new cutoff wall.
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Perform a minimum of six (6) core samples to evaluate the soil propertie
and extent of soil loss under the concrete channel and in the vicinity o the existing underground sewer pipe line.
0 Perform soil sampling directly upstream of the cutoff wall and determin
requirements for stabilizing the soft/hard channel transition.
Prepare plans, specifications, and cost estimates for the installation of new cutoff wall, filling of void areas under the concrete channel
stabilization of the softjhayd channel transition, and stabilization of thl concrete channel slabs in the existing displaced condition.
Prepare a separate report addressing the displaced concrete channel slabs Include copies of as-built plans, summary of existing slab conditions, an1 recommendations for future repairs to correct slab a1 ignment. Asses whether the displaced slabs affect the structural integrity of the channel Provide estimates for recommended future repairs.
Staff recommends approval of the attached consultant agreement between the City an1 Woodward-Clyde Consultants. Completion of the channel analysis and design plan will require approximately fifteen (15) weeks. As an interim measure, the Cit. recently placed rock materials in the area of the exposed cutoff wall to preven further soil degradation.
FISCAL IMPACT:
The attached consultant agreement provides for a lump sum fee of $28,788 for al;
necessary engineering and design services. The City Council has previouslj appropriated $50,000 of General Capital Construction funds for this project in tht 1991-92 Capital Improvement Program and no additional appropriations are necessarj at this time.
The $50,000 appropriation is intended only for the design portion of this project Following the outcome of this contract, additional funds will be required tc construct and implement the repairs necessary to stabil ize the channel.
EXHIBITS :
1. Location map.
2. Resolution No.%&-ica_ approving a consultant agreement for Buena Vist
3.
Creek Channel Repairs, Project No. 3385.
Consultant Agreement with Woodward-Clyde Consultants.
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r LOCATION MAP
UNLINED CHANNE ONCRETE LINE
PROJECT SITE
.I\ \ vIcm MAP
N. T. E.
t
PROJECT NAME EXHlB
1 BUENA VISTA CREEK CHANNEL REPAIRS
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AGREEMENT FOR
DESIGN SERVICES FOR
BUENA VISTA CREEK CHANNEL REPAIRS
THIS AGREEMENT, made and entered into as of the /d 35 day of
, 19EA by and between the CITY OF CARLSBAD, a
municipal corporation, hereinafter referred to as "City", and WOODiVARD-CLYDE
CONSULTANTS, hereinafter referred to as "Consultant".
I
RECITALS
City requires the services of a civil engineering consultant to provide the
necessary testing and design services for preparation of plans, specifications, and
recommendations for the Buena Vista Creek Channel Repair Project; and Consultant
possesses the necessary skills and qualifications to provide the services required by
the City;
NOW, THEREFORE, in consideration of these recitals and the mutual
covenants contained herein, City and Consultant agree as follows:
1. CONSULTANT'S OBLIGATIONS .
0 Review plans, perform field surveys, and evaluate the concrete
channel, the sewer pipeline, and other existing structures.
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e Evaluate channel hydraulics. Based upon City-p;ovided data for the
100-year frequency storm flows, determine the design velocities and
prepare the design of a new cutoff wall.
0 Perform a minimum of six (6) core samples to evaluate the soil
properties and extent of soil loss under the concrete channel lining
and in the vicinity of the existing underground sewer pipeline. Core
samples may be taken through the existing weep holes in the concrete
channel. The location of all core sampling holes shall be reviewed by
the City prior to commencement of testing.
e Perform soil sampling directly upstream of the cutoff wall and
determine requirements for stabilizing the soft to hard channel
transition.
Prepare plans, specifications, and cost estimates for the installation of
a new cutoff wall, filling of void areas under the concrete channel,
stabilization of the soft/hard channel transition, and stabilization of
the concrete channel slabs in the existing displaced condition. The
displaced slabs must be able to resist hydraulic forces and
maintenance vehicle loading forces.
e Prepare a separate report addressing the displaced concrete channel
slabs. Include copies of as-built plans, a summary of existing slab
conditions, and recommendations for future repairs to correct slab
alignment. Assess whether the displaced slabs affect the structural
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integrity of the channel. Provide estimates for recom,iended future
repairs.
To perform these services, the work shall be divided into the five (5) tasks
as outlined below:
Task 1 - Channel Hydraulics and Erosion Study
The channel hydraulics and erosion study task will evaluate the current
channel conditions and problems associated with the creek flows and sediment
transport. Subtasks include:
0 Review of existing Buena Vista Sediment Control Study prepared by
June Applegate, P.E.;
e Development of 4 to 5 cross sections for hydraulic evaluation;
Test boings and soil sampling to a depth of IO to 15 feet upstream
of the existing cutoff wall;
0 Hydraulic evaluation of the creek; and
Erosion analysis at the cutoff wall.
Existing reports and data pertaining to the creek will be reviewed to
determine the range and maximum flows experienced within the chamel at the El
Camino Real crossing. Four to five cross sections will be surveyed for a HEC-2
hydraulic analysis to estimate creek velocities which have caused the undercutting
of the cutoff wall. Soil samples will be collected from the center of the creek under
the cutoff wall, and from the other areas upstream of the lined section. Mechanical
analysis and plasticity index tests will be performed, and, subsequent grain size
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distribution curves will be prepared from laboratory analyses of these soil samples
for use in the channel erosion analysis. Analysis of possible improvements such as
vegetation and/or sediment removal in the unlined channel section will also be
provided to show the impacts that the current unlined creek conditions have on
scour, at the transition with the lined section.
Task 2 - Evaluate the Extent of Piping - and Remedial Alternatives
This task will address the extent of the soil loss under the downstream
sections of the channel lining and evaluate the impacts to the underground utilities
and the El Camino Real bridge crossing. The following will be performed:
0 Perform a field investigation using soil sampling; and
Prepare a plan for remedial action.
Soil sampling will be performed by manually collecting soil samples through
the existing weep holes and beneath the voids, in order to evaluate soil properties,
the extent of soft soils and degree of disturbance. However, if the weep holes are
not in convenient locations for representative sampling or not large enough, coring
through the existing slab of the river channel will be required. The extent of voids
may be evaluated by probing through the newly cored holes or the existing weep
holes.
Since the extent of piping will be evaluated during the course of
investigation, it is not possible to predict the number of locations that will require
testing or sampling. It is anticipated that a total of six (6) to ten (10) tests or
sample is a reasonable estimate for this project.
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Remedial action will consist of a grouting program if voids are encountered
beneath the lining below the bridge. Estimated quantities and costs for remedial
improvement would be provided. However, if it is found that there has not been
any substantial flow underneath the section of channel lining beneath the bridge,
an alternative of no action exists.
Task 3 - Channel Lining - Stability and Cutoff Wall Design -
The channel lining analysis and cutoff wall design task will include analysis
of the existing cutoff wall and the structural stability of the adjacent reinforced
concrete lining which has been damaged due to the loss of foundation soils.
Subtasks include:
0 Review of existing CALTRANS as-built plans;
Reinforced concrete lining stability analysis; 0
0 Cutoff wall design;
b
0 Construction alternatives.
The existing cutoff wall has been undermined by the recent flows. Loss of
soils at the transition with the unlined channel has resulted in undercutting of the
cutoff wall and flow beneath the channel lining. A recommended design for both
the cutoff wall and the associated subgrade will be provided.
Cost estimates of the new structure; and
With the loss of soils beneath the lining, structural stability of the lining has
been compromised. Analysis of the stability of the lining will be performed. Based
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on the conclusions of this analysis, recommendations for design of a new lining
section will be made.
The design for the cutoff wall and the structural stability analysis of the
concrete lining will both be based on data and information provided by the field
investigation and laboratory testing program of Tasks 1 and 2.
Task 4 - Preparation of Plans and Specifications
This task will include the preparation of a bid-ready :;et of plans,
specifications, and cost estimate for:
e Installation of a new cutoff wall.
e Filling of the void area under the concrete channel.
Stabilization of the soft/hard channel transition.
Stabilization of the concrete channel slabs in the existing displaced
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condition.
Plans will be in ink on D-size mylar sheets. Specifications will be provided
on computer disk readable by Wordperfect, Version 5.1. Modifications to the latest
edition of the Standard Specifications for Public Works Construction will be
provided as necessary to address specific requirements for the work.
Task 5 - ReDort
A separate report will be prepared to address the displaced concrete slabs.
The report will include copies of as-built plans, a summary of existing slab
conditions, and recommendations for future repairs to correct slab alignment. An
assessment will be provided to determine whether the displaced slabs affect the
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structural integrity of the channel, and estimates will be provided for recommended
future repairs.
2. CITY OBLIGATIONS
The City shall provide blank mylar plan and plan/profile standard drawing
sheets and "boilerplate" standard contract documents, bond forms, and general
provisions on computer disk compatible with Wordperfect. The location of test hole
openings in the channel lining will be provided by the City.
3. PROGRESS AND COMPLETION
The work under this contract will begin within ten (10) days after receipt
of notification to proceed by the City and be completed within seventy-five (75)
calendar days of that date in accordance with the Consultant's "Proposal for
Engineering Services", attached hereto as Exhibit "A", dated January 16, 1992.
Extensions of time may be granted if requested by the Consultant and agreed to in
writing by the City Project Manager. The City Project Manager will give allowance
for documented and substantiated unforeseeable and unavoidable delays not caused
by a lack of foresight on the part of the Consultant, or delays caused by City
inaction or other agencies' lack of timely action. Exhibit "A" is hereby incorporated
and made a part of this agreement.
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4. FEES TO BE PAID TO CONSULTANT
The lump sum fee payable according to Paragraph 6, "Payment of Fees," shall
be $28,788 in accordance with the Consultant's "Fee Schedule", attached hereto as
Exhibit "B". No other compensation for services will be allowed except those items
covered by supplemental agreements per Paragraph 7, "Changes in Work." Exhibit
"B" is hereby incorporated and made a part of this agreement.
5. DURATION OF CONTRACT
This agreement shall extend for a period of one (1) year from date thereof.
The contract may be extended for one (1) additional one (1) year period or parts
thereof, based upon satisfactory performance and the City's needs.
6. PAYMENT OF FEES
Payment of fees shall be monthly based upon percentage of completion of the
work. A sum of $2,000 shall be retained until construction documents are approved
by the City Engineer.
7. FINAL SUBMISSIONS
Within fifteen (15) days of completion and approval of the plans and
specifications, the Consultant shall deliver to the City the following items:
e Original mylars at scale of the drawings reproducible on standard 24"
by 36" sheets. Blank mylars will be provided by the City.
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0 All final engineering certifications and documents. The plans shall be
signed by a Registered Civil Engineer and/or Registered Landscape
Architect, as appropriate.
0 Modifications to the latest edition of the Standard Specifications for
Public Works Construction, as related to this project, provided on
computer disk and compatible with Wordperfect Version 5.1.
One (1) copy of all soils reports, boring logs, lab and field results, and 0
field survey notes.
8. CHANGESIN WORK
If, in the course of the contract, changes seem merited by the Consultant or the
City, and informal consultations with the other party indicate that a change in the
conditions of the contract is warranted, the Consultant or the City may request a
change in contract. Such changes shall be processed by the City in the following
manner: A letter outlining the required changes shall be forwarded to the City by
Consultant to inform them of the proposed changes along with a statement of
estimated changes in charges or time schedule. A supplemental agreement shall be
prepared by the City and approved by the City according to the procedures
described in Carlsbad Municipal Code Section 3.28.1 72. Such supplemental
agreement shall not render ineffective or invalidate unaffected portions of the
agreement.
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9. COVENANTS AGAINST CONTINGENT FEES
The Consultant warrants that their firm has not employed or retained any
company or person, other a bona fide employee working for the Consultant, to
solicit or secure this agreement, and that Consultant has not paid or agreed to pay
any company or person, other than a bona fide employee, any fee, commission,
percentage, brokerage fee, gift, or any other consideration contingent upon, or
resulting from, the award or making of this agreement. For breach or violation of
this warranty, the City shall have the right to annul this agreement without liability,
or, in its discretion, to deduct from the agreement price or consideration, or
otherwise recover, the full amount of such fee, commission, percentage, brokerage
fees, gift, or contingent fee.
10. NONDISCRIMINATION CLAUSE
The Consultant shall comply with the state and federal laws regarding
nondiscrimination.
11. TERMINATION OF CONTRACT
In the event of the Consultant’s failure to prosecute, deliver, or perform the
work as provided for in this contract, the City may terminate this contract for
nonperformance by notifying the Consultant by certified mail of the termination of
the Consultant. The Consultant, thereupon, has five (5) working days to deliver
said documents owned by the City and all work in progress to the City Project
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Manager. The City Project Manager shall make a determination of fact based upon
the documents delivered to City of the percentage of work which the Consultant has
performed which is usable and of worth to the City in having the contract
completed. Based upon that finding as reported to the City Manager, the Manager
shall determine the final payment of the contract.
12. DISPUTES
If a dispute should arise regarding the performance of work under this
agreement, the following procedure shall be used to resolve any question of fact or
interpretationnot otherwise settled by agreement between parties. Such questions,
if they become identified as a part of a dispute among persons operating under the
provisions of this contract, shall be reduced to writing by the principal of the
Consultant or the City Project Manager. A copy of such documented dispute shall
be forwarded to both parties involved along with recommended methods of
resolution which would be of benefit to both parties. The City Project Manager
or principal receiving the letter shall reply to the letter along with a recommended
method of resolution wirhin ten (10) days. If the resolution thus obtained is
unsatisfactory to the aggrieved party, a letter outlining the dispute shall be
forwarded to the City Council for their resolution through the Office of the City
Manager. The City Council may then opt to consider the directed solution to the
problem. In such cases, the action of the City Council shall be binding upon the
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parties involved, although nothing in this procedure shall prohibit the parties
seeking remedies available to them at law.
13. SUSPENSION OR TERMINATION OF SERVICES
This agreement may be terminated by either party upon tendering thirty (30)
days written notice to the other party. In the event of such suspension or
termination, upon request of the City, the Consultant shall assemble the work
product and put same in order for proper filing and closing and deliver said product
to City. In the event of termination, the Consultant shall be paid for work
performed to .the termination date; however, the total shall not exceed the lump
sum fee payable under paragraph 4. The City shall make the final determination
as to the portions of tasks completed and the compensation to be made.
14. STATUS OF THE CONSULTANT
The Consultant shall perform the services provided for herein in Consultant‘s
own way as an independent contractor and in pursuit of Consultant’s independent
calling, and not as an employee of the City. Consultant shall be under control of
the City only as to the result to be accomplished, but shall consult with the City as
provided for in the request for proposal.
The Consultant is an independent contractor of the City. The payment made to
the Consultant pursuant to the contract shall be the full and complete compensation
to which the Consultant is entitled. The City shall not make any federal or state tax
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. withholdings on behalf of the Consultant. The City shall not be required to pay any
workers’ compensation insurance on behalf of the Consultant. The Consultant
agrees to indemnify the City for any tax, retirement contribution, social security,
overtime payment, or workers’ cornpensation payment which the City may be
required to make on behalf of the Consultant or any employee of the Consultant for
work done under this agreement.
The Consultant shall be aware of the requirements of the Immigration Reform
and Control Act of 1986 and shall comply with those requirements, including, but
not limited to, verifying the eligibility for employment of all agents, employees,
subcontractors and consultants that are included in this agreement.
15. CONFORMITY TO LEGAL REQUIREMENTS
The Consultant shall cause all drawings and specifications to conform to all
applicable requirements of law: federal, state and local. Consultant shall provide
all necessary supporting documents, to be filed with any agencies whose approval
is necessary.
The City will provide copies of the approved plans to any other agencies.
16. OWNERSHIP OF DOCUMENTS
All plans, studies, sketches, drawings, reports, and specifications as herein
required are the property of the City, whether the work for which they are made be
executed or not. In the event this contract is terminated, all documents, plans,
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f specifications, drawings, reports, and studies shall be delivered forthwith to the City.
Consultant shall have the right to make one (1) copy of the plans for his/her
records.
17. REPRODUCTION RIGHTS
The Consultant agrees that all copyrights which arise from creation of the
work pursuant to this contract shall be vested in City and hereby agrees to
relinquish all claims to such copyrights in favor of City.
18. HOLD HARMLESS AGREEMENT
The City, its officers, and employees shall not be liable for any claims,
liabilities, penalties, fines, or any damage to goods, properties, or effects of any
person whatever, nor for personal injuries or death caused by, or resulting from, any
intentional or negligent acts, errors or omissions of Consultant or Consultant’s
agents, employees, or representatives. Consultant agrees to defend, indemnify, and
save free and harmless the City and its officers and employees against any of the
foregoing claims, liabilities, penalties or fines, including liabilities or claims by
reason of alleged defects in any plans and specifications, and any cost, expense or
attorney’s fees which are incurred by the City on account of any of the foregoing.
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19. ASSIGNMENT OF CONTRACX
The Consultant shall not assign this contract or any part thereof or any monies
due thereunder without the prior written consent of the City.
.20. SUBCONTRACTING
If the Consultant shall subcontract any of the work to be performed under this
contract by the Consultant, Consultant shall be fully responsible to the City for the
acts and omissions of Consultant’s subcontractor and of the persons either directly
or indirectly employed by the subcontractor, as Consultant is for the acts and
omissions of persons directly employed by consultant. Nothing contained in this
contract shall create any contractual relationship between any subcontractor of
Consultant and the City. The Consultant shall bind every subcontractor and every
subcontractor of a subcontractor by the terms of this contract applicable to
Consultant’s work unless specifically noted to the contrary in the subcontract in
question approved in writing by the City. c
21. PROHIBITJZD INTEREST
No official of the City who is authorized in such capacity on behalf of the City
to negotiate, make, accept, or approve, or take part in negotiating, making,
accepting, or approving of this agreement, shall become directly or indirectly
interested personally in this contract or in any part thereof. No officer or employee
of the City who is authorized in such capacity and on behalf of the City to exercise
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any executive, supervisory, or similar functions in connection with the performance
of this contract shall become directly or indirectly interested personally in this
contract or any part thereof.
22. VERBAL AGREEMENT OR CONVERSATION
No verbal agreement or conversation with any officer, agent, or employee of
the City, either before, during or after the execution of this contract, shall affect or
modify any of the terms or obligations herein contained nor entitle the Consultant
to any additional payment whatsoever under the terms of this contract.
23. SUCCESSORS OR ASSIGNS
Subject to the provisions of Paragraph 18, "Hold Harmless Agreement," all
terms, conditions, and provisions hereof shall insure to and shall bind each of the
parties hereto, and each of their respective heirs, executors, administrators,
successors, and assigns.
24. EFFECTIVEDATE
This agreement shall be effective on and from the day and year first above
written.
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25. CONFLICI' OF INTEREST
The Consultant shall file a Conflict of Interest Statement with the City Clerk in
accordance with the requirements of the City of Carlsbad Conflict of Interest Code.
The Consultant shall report investments or interests in real property.
26. INSURANCE
The Consultant shall obtain and maintain policies of general liability insurance,
automobile liability insurance, and a combined policy of worker's compensation and
employers liability insurance from an insurance company authorized to do business
in the State of California which meets the requirements of City Council Resolution
No. 91-403 in an insurable amount of not less than one million dollars
($1,000,000) each, unless a lower amount is approved by the City Attorney or the
City Manager. This insurance shall be in force during the life of this agreement and
shall not be canceled without thirty (30) days prior written notice to the City sent
by certified mail.
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The city shd be named as an additional insured On these policies. The
Consultant sh& furnish certificates of insurance to the city before COrnmencement
of work.
Executed by Consultant this IfG day of h -1
19,&*
CONSULTANT: CITY OF CARLSBAD, a municipal
cornoration of the State of California c Ex ER AI, 4 CKiVO WLEDGMENT
wpersonally known to me
Proved to me on the basis of satisfactory evidence
to be the person(9whose namew & -
wlthln Instrument, and acknowledged that subscribed to the
executed It
L?r . - *-
(President or vice-president and secretary or assistant secretary must si@ for
corporations, If only one officer signs, the corporation must attach a resolution
certified by the secretary or assistant secretary under Corporate seal empowering
that officer to bind the corporation.)
APPROVED AS TO FORM: WOODWARD-CLYDE CONSULTANTS
By :
RONALD R. BALL
Acting City Attorney
David T. Dircick (print nm.e here) BY cl-b e. =mse#
secretary Deputy City Attorney cf,,f, 9 2.
(title and organization of
Rev. 2/3/92 signatory) 18
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The City shall be named as an additional insured on these policies. The
Consultant shall furnish certificates of insurance to the City before commencement
of work.
Executed by Consultant this /PG day of L >
1 Spa;.
CONSULTANT: CITY OF CARLSBAD, a municipal
corporation of the State of California
WOODWARD-CLYDE CONSULTANTS
By:
Scott S. Moorehouse ATTEST:
(print name here)
Vice President ,.*
(title and organization of signatory)
ALETHA L. RAUTENKRANZ 1
City Clerk
(Proper notarial acknowledgment of execution by CONSULTANT must be attached.)
(President or vice-president and secretary or assistant secretary must sign for
corporations. If only one officer signs, the corporation must attach a resolution
certified by the secretary or assistant secretary under corporate seal empowering
that officer to bind the corporation.)
APPROVED AS TO FORM: WOODWARD-CLYDE CONSULTANTS
By :
RONALD R. BALL (si@ here) '"-
Acting City Attorney
David T. Dilrick
(print name here) BY a-s-. R.G,
Deputy city Attorney 4. f f. 7 2 * Secretary
(title and organization of
signatory) 18 Rev. 2/3/92
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Woodward=Clyde Consultan
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PROPOSAL FOR ENGINEERING SERVICES
BUENA VISTA CREEK CHANNEL REPAIRS
Prepared for:
City of Carlsbad
Municipal Project Division
a* a Woodward yde w
Consultants
Engineering 8 sciences applied to the earth 8 its environment
January 16, 1992
Reference No. 9051262P
Mr. Kenneth W. Quon, Project Manager
City of Carlsbad
Municipal Projects Division
2075 Las Palmas Drive
Carlsbad, CA 92009-4859
PROPOSAL FOR ENGINEERING SERVICES BUENA VISTA CREEK CHANNEL REPAIRS
Dear Ken: ’
In response to your telephone call on January 14, 1992, Woodward-Clyde Consultants
(Woodward-Clyde) is pleased to submit three copies of our revised proposal for Engineering
Services for Buena Vista Creek Channel Repairs. This proposal was originally submitted
to the City of Carlsbad on July 9, 1991.
Based on our telephone conversation we revised the schedule and updated the cost estimate
which is based on our 1992 Schedule of Fees and Charges. The scope of work for the
proposal is unchanged.
We look forward to working with you on this project. If you have any questions regarding this proposal, please give us a call.
Very truly yours,
WOODWARD-CLYDE CONSULTANTS -= + ++ ULu
John H. Egan
Vice President Director, Water Resources
Man Dadkhah, Ph.D., P.E.
ME/AD/lag (B/9051262n
1550 Hotel Circle North San Diego, California 92108
(619) 294-9400 Fax (619) 293-7920
0
Woodward-Clyde Consultar
* Reference No. 905 1262P
TABLE OF COW
Section
1.0 PROJECT BACKGROUND
2.0 SCOPE OF WORK
3.0 QUALIFICATIONS AND EXPERIENCE
3.1 PROFESSIONAL DISCIPLINES AND SERVICES
3.2 EXPERIENCE
4.0 PROJECTTEAM
5.0 SCHEDULE’
LTST OF APPENDIXES
APPENDIX A 254 FORM
dad 1
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Reference No. 905 1262P WoodwardGIyde Consultar
1.0
PROJECT BACKGROUND
Based on the City of Carlsbad's (City) request for proposal, we understand that the project
is to repair the Buena Vista Creek channel upstream of the El Camino Real bridge crossing.
We understand that the City plans to make the necessary repairs to the channel lining and
to mitigate the contributing factors to the scour and transport of the soils underlying the
channel lining. The City has conducted interim improvements to reduce the loss of soil and
damage to the channel. It is our desire to provide the City with a basis for construction of
permanent channel improvements.
Based on'a site visit performed in August of 1990, it appeared that sediment had been
deposited in the unlined reaches of the channel upstream of the damaged section, resulting
in increased localized flow velocities. Additionally, there was considerable vegetative
growth in the unlined channel area further reducing the channel capacity. Increased
concentrated channel velocities at the transition to the lined channel area appeared to have
contributed to the scour of soils at the upstream cutoff wall. The scour of soils below the
depth of the cutoff wall resulted in flow beneath the channel lining. This underflow resulted
in the piping of soils from under the concrete lining, as evidenced by settlement of and
damage to the concrete, with voids visible through some of the concrete weep holes.
The extent of the piping is currently unknown; also unknown is the extent that buried utilities
in the vicinity have been affected. Buried conduits provide excellent vehicles for subsurface
flow and can experience erosion loss of the soils disturbed during the construction process.
This erosion can result in differential settlement with structural damage to the pipe.
For preparation of this proposal, we have been provided with copies of Caltrans' as-built
plans for the El Camino Real overcrossing at the Buena Vista Creek Channel, and a sediment
control study entitled "Buena Vista Lagoon and Watershed Sediment Control Study,"
prepared by June Applegate, P.E.
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2.0
SCOPE OF WORK
The City has requested performance of the following services for this project:
Review plans, perform field surveys, and evaluate the concrete channel, the sewer
pipeline, and other existing structures.
Evaluate channel hydraulics. Based upon City-provided data for the 100-year
frequency storm flows, determine the design velocities and prepare the design of a
new cutoff wall.
Perform a minimum of six (6) core samples to evaluate the soil properties and extent
of soil loss under the concrete channel lining and in the vicinity of the existing
underground sewer pipeline. Core samples may be taken through the existing weep
holes in the concrete channel. The location of all core sampling holes shall be
reviewed by the City prior to commencement of testing.
Perform soil sampling directly upstream of the cutoff wall and determine
requirements for stabilizing the soft to hard channel transition.
Prepare plans, specifications, and cost estimates for the installation of a new cutoff
wall, filling of void areas under the concrete channel, stabilization of the soft/hard
channel transition, and stabilization of the concrete channel slabs in the existing
displaced condition. The displaced slabs must be able to resist hydraulic forces and
maintenance vehicle loading forces.
Prepare a separate report addressing the displaced concrete channel slabs. Include
copies of as-built plans, a summary of existing slab conditions, and recommendations
for future repairs to correct slab alignment. Assess whether the displaced slabs affect
the structural integrity of the channel. Provide estimates for recommended future
repairs.
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To perform these services we have divided the work into five tasks, as outlined below.
Task 1 - Channel Hvdraulics and Erosion Study
The channel hydraulics and erosion study task will evaluate the current channel conditions
and problems associated with the creek flows and sediment transport. Subtasks include:
Review of existing Buena Vista Sediment Control Study prepared by June Applegate,
P.E.;
Development of 4 to 5 cross sections for hydraulic evaluation;
Test borings and soil sampling to a depth of 10 to 15 feet upstream of the existing
cutoff wall;
Hydraulic evaluation of the creek; and
Erosion analysis at the cutoff wall.
Existing reports and data pertaining to the creek will be reviewed to determine the range of
flows and maximum flows experienced within the channel at the El Camino Real crossing.
Four to five cross-sections will be surveyed for a HEC-2 hydraulic analysis to estimate creek
velocities which have caused the undermining of the cutoff wall. Soil samples will be
collected from the center of the creek under the cutoff wall, and from other areas upstream
of the lined section. Mechanical analysis and plasticity index tests will be performed, and
subsequently grain size distribution curves will be prepared from laboratory analyses of these
soil samples for use in the channel erosion analysis. Analysis of possible improvements,
such as vegetation and/or sediment removal in the unlined channel section, will also be
provided to show the impacts that the current unlined creek conditions have on scour at the
transition with the lined section.
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Task 2 - Evaluate the Extent of Piping and Remedial Alternatives
This task will address the extent of the soil loss under the downstream sections of the
channel lining and evaluate the impacts to the underground utilities and the El Camino Real
bridge crossing. We propose to perform the following:
Perform a field investigation using nondestructive testing or soil sampling, and
Prepare a plan for remedial action.
Nondestructive testing is a field investigation method based on wave emission through the
soil mass and recording of the pertinent wave velocity. The density of the underlying layer
can thus be determined and the likely presence of voids may be detected. This method of
testing requires the placement of the testing equipment at the slab surface but does not allow
for v;sual contact with the layer in question, since the technique does not include soil
sampling. This method is usually more expensive than the conventional method of soil
sampling.
Soil sampling may be performed by manually collecting soil samples through the existing
weep holes and beneath the voids, in order to evaluate soil properties, the extent of soft soils
and degree of disturbance. It is a relatively inexpensive and easy method to apply.
However, if the weep holes are not in convenient locations for representative sampling or
not large enough, coring through the existing slab of the river channel will be required. The
extent of voids may be evaluated by probing through the newly cored holes or the existing
weep holes.
Since the extent of piping will be evaluated during the course of investigation, it is not
possible to predict the number of locations that will require testing or sampling. We
anticipate, however that a total of six (6) to ten (10) tests or sample is a reasonable estimate
for this project.
Remedial action will consist of a grouting program if voids are encountered beneath the
lining below the bridge. Estimated quantities and costs for remedial improvement would be
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provided. However, if it is fund that there has not been any substantial flow underneath the
section of channel lining beneath the bridge, an alternative of no action exists.
Task 3 - Channel Linin? Stabilitv and Cutoff Wall Design
The channel lining analysis and cutoff wall design task will include analysis of the existing
cutoff wall and the structural stability of the adjacent reinforced concrete lining which has
been damaged due to the loss of underlying foundation soils. Subtasks include:
Review of existing Caltrans as-built plans;
Reinforced concrete lining stability analysis;
Cutoff wall design;
Cost estimates of the new construction; and
Construction alternatives.
The existing cutoff wall has been undermined by channel flows. Loss of soils at the
transition with the uniined channel has resulted in undermining of the cutoff wall and flow
beneath the channel lining. A recommended design for both the cutoff wall and the
associated lining subgrade will be provided.
With the loss of soils beneath the lining, structural stability of the lining has been
compromised. Analysis of the stability of the lining will be performed. Based on the
conclusions of this analysis, recommendations for design of a new lining section will be
made.
The design for the cutoff wall and the structural stability analysis of the concrete lining will
both be based on data and information provided by the field investigation and laboratory
testing program proposed in Tasks 1 and 2.
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An estimate of materials and construction costs will be provided in this task for the
recommended improvements.
Task 4 - Preparation of Plans and SDecifications
This task will include preparation of plans, specifications and cost estimate for:
Installation of a new cutoff wall,
Filling of the void area under the concrete channel,
Stabilization of the softlhard channel transition, and
Stabilization of the concrete channel slabs in the existing displaced condition.
Task 5 - Rmrt
A separate report will be prepared to address the displaced concrete slabs. The rept will
include copies of as-built plans, a summary of existing slab conditions, and recommendations
for future repairs to correct slab alignment. We will assess whether the displaced slabs
affect the structural integrity of the channel, and provide estimates for recommended future
repairs.
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3.0
QUALIFICATIONS AND EXPERIENCE
Woodward-Clyde Consultants is a nationwide firm of over 1,500 professional and support
staff providing consulting services in engineering, the earth sciences, and the environmental
sciences since 1950. Our hydrologists, geologists, engineers, and environmental scientists
can provide the necessary expertise to address multidisciplinary issues associated with water
resources. The San Diego office of Woodward-Clyde Consultants was established in 1959
and has a staff of about 90. We have participated in a variety of hydrologic, hydraulics, and
water resources studies throughout San Diego County. Recognizing the varied needs of our
clients, we develop flexible and creative approaches to water resources issues.
Among the qualifications of Woodward-Clyde Consultants in water resources are the
following:
Ranked number 25 among the major architect-engineer firms on the Engineering;
News Record’s list of the Top 500 Design firms.
Annual revenues of over $100 million for professional services.
Professional staff in disciplines including:
civil engineering hydrology
economics meteorology
environmental chemistry risk assessment
g=lOgY geochemistry
geophysics -land planning
hydrogeology
Our clients include municipal water districts, local governments, land developers, and the
federal government. Woodward-Clyde Consultants’ water resources work has focused on
responding to concerns regarding increasing regulatory involvement.
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3.1 PROFESSIONAL DISCIPLINES AND SERVICES
Water Resources: hydrology, hydrogeology, geomorphology, sediment transport,
engineering, water quality.
Services: dams and reservoirs, water supply, hydropower, conveyance systems, flood
control and drainage, water quality and sedimentation.
geotechnical and civil engineering, hydraulics, environmental chemistry, environmental
Engineering: geotechnical, environmental, foundation, civil, structural, arctic, earthquake,
chemical and process, water resources, mining, coastal and ocean.
Services: soil analysis and testing, waste management facility design, construction
consultation;, tunnels and shafts, mine development and design, stabilization studies,
instrumentation, foundation analysis and design, field measurements, rock engineering design
and consultation, earth and rockfill dam design, concrete dam design, pile driving analysis,
pavement management, pavement systems design, water resources development.
Environmental Sciences: ecology/biology, air quality/meteorology, urbdregional
planning, oceanography, cultural resources, chemistry/toxicology, industrial hygiene.
Services: regulatory compliance, comprehensive baseline studies, air and water quality
studies, public scoping meeting planning, oil spill contingency planning, fish hatchery studies
and systems design, transportation systems planning, noise assessment, land
use/socioeconomics, health risk assessment.
Waste Management:
toxicology, geology, geophysics, civil engineering, landfill engineering.
hydrogeology, hydrology, chemical and process engineering,
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Services: site assessments and investigation, remedial design and implementation, waste
water treatment system design, CERCLNSARA compliance, RCRA and Community Right-
to-Know permitting, decision and risk analysis, groundwater and contaminant modeling,
planning, monitoring system design and installation, environmental audit, underground
vadose zone studies, endangerment assessment, contingency and emergency response
storage tank programs.
Earth Sciences: geology, seismology, geochemistry, geophysics, hydrogeology , hydrology.
Services: seismo-tectonic evaluations, post-earthquake investigation, geologic hazards
evaluation, earthquake contingency planning, geologic hazards evaluation, site
characterization, geochemical analyses, hazardous waste assessments, nuclear repository
studies, geophysical surveys, remote sensing.
Technical and Laboratory Services: microearthquake surveys, subsurface radar surveys,
soiVrock evaluation and testing, biochemical analysis and testing, research and development,
geologic testing, geophysical testing systems, California State certified laboratory for analysis
of water, soil and hazardous waste.
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3.2 EXPERIENCE
PROJECT CLIENT PROJECT DESCRIPTION Location
FARMINGTON CANAL STOCKTON EAST WATER
S tockton , California
GUAJOME MARSH
HYDROLOGY ASSESSMENT
COUN+Y OF SAN DIEGO PARKS
AND RECREATION San Diego, California
SOUTH CHOLLAS LANDFILL
CLOSURE PLAN CITY OF SAN DIEGO specifications. San Diego, California
HYDRAULIC EVALUATION HALEY TRUST PROPERTY
City of Poway
Poway, California
GEOTECHNICAL AND HYDRAULIC EVALUATION FOR NEW NORTH RIVER ROAD
ASSESSMENT DISTRICT MORGAN OCEANSIDE COMMERCIAL Oceanside, California
GOODWIN TUNNEL PROJECT
STOCKTON EAST WATER
DISTRICT
Design of 33-mile conveyance system to deliver
water from Goodwin Reservoir to water treatment
DISTRICT plant.
Water and sediment analysis for fresh water marsh, study included recommendation for
sediment controls.
Hydrological and hydraulic analysis for closure plan, study included design plans and
Hydraulic analysis designed to investigate and evaluate possible channel design alternatives to reduce channel erosion.
Evaluation of proposed project site, regarding
geologic, soils, impacts to river hydraulics. Project included grading and revetment design.
Design plans and specifications for tunnel-canal
transitions structure, creek diversion structure anc lined channel for conveyance of 200 cfs water
S tockton , California supply -
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PROJECT
CLIENT PROJECT DESCRIPTION
Location
HAZARD CHANNEL
TRAMMEL CROW COMPANY San Diego, California
Hydraulic analyses for proposed tributary channel flowing into San Diego River, including evaluation of impacts to San Diego River flood stages.
Evaluation of dam breach and effects on actual
storm hydrograph, and estimation of lake
LAKE VAL SERENO
LAKE VAL SERIN0 HOMEOWNERS ASSOCIATION siltation.
San Diego, California
UPPER 'SAN DIEGO WER MASTER PLAN
COUNTY OF SAN DIEGO San Diego, California
Development of flood protection and sediment
management plan, hydraulic analysis, and design of flood protection works for 16-mile reach of
San Diego River; including evaluation of effects
of sand mining.
Erosion and sedimentation study of watershed,
including evaluation of sediment sources and design of alternative erosion control treatments.
TECOLOTE CANYON NATURAL PARK CITY OF SAN DIEGO San Diego, CaIifornia
ROSE AND SAN CLEMEN'TE CANYON WATERSHEDS CITY OF SAN DIEGO San Diego, California
PADRE SEWER CROSSING PADRE MUNICIPAL WATER DISTRICI' San Diego, California
ACCESS ROAD EROSION Erosion study for 300 miles of access roads and
STUDIES transmission line; evaluation of the effectiveness
SAN DIEGO GAS AND ELECTRIC of alternative erosion control techniques, COMPANY cost-benefit analyses, construction specifications.
San Diego, California
Evaluation of erosion and sedimentation problems, and development of recommendations for erosion
control measures.
Evaluation of causes of streambed degradation and development of recommendations for stabilization
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REFERENCES
Project: Guajome Marsh Hydrology Assessment
Client: County of San Diego
Parks and Recreation
5201 Ruffin Road
Contact: Dr. Susan Hector
Phone: (619) 697-3030
San Diego, California
Project: South Chollas Landfill Closure Plan Client: City of San Diego Waste Management Department 4950 Murphy Canyon Road San Diego, California Contact: ,Mr. Mike Thompson Phone: (619) 492-5020
Project: Hydraulic Evaluation
Contact: City of Poway 13050 Community Road
Poway, California 92064 Contact: Mr. Gordon Dobler Phone: (619) 748-6600
Project: Goodwin Tunnel Project Client: Stockton East Water District
P. 0. Box 5157 Stockton, California 95205
Contact: Mr. Ed Steffani
Phone: (209) 948-0333
Project: €"adre Sewer Crossing
Client: Padre Dam Municipal Water District
P. 0. Box 70
Santee, California
Contact: Gale Ruffin
Phone: (619) 448-3 11 1
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4.0 PROJECT TEAM
Woodward-Clyde has assembled a project team composed of selected management and
technical staff that has specific expertise in hydraulics, erosion control and sediment transport, and civil engineering. Our key professionals selected for this project ar as follows:
1. Mr. James Cavallin, with more than 20 years experience, is an expert in soil and foundation engineering, He has designed several hydraulic structures including dams, channels, and reservoirs. He will be a technical advisor for this project.
2. Ms. Carol Forrest is a Vice President and Senior Associate with Woodward-Clyde, and has more than 14 years of experience in hydrology, hydraulics and sediment transport. She has experience in the evaluation of watershed characteristics, storm runoff, river and channel hydraulics, and sediment yield. She has experience in the
design of project plans and specifications for streambank stabilization; creek and gully
restoration: channels: weirs: and other hydraulic structures. Ms. Forrest will be the Responsible Professional for this project.
3. Dr. ArsaIan Dadkhah has 15 years of experience in the areas of hydrology/hydraulics
and water resources. He has been involved in the planning, design, and construction of various water resources and flood control projects. Dr. Dadkhah has designed
several hydraulic structures, recent work includes a diversion structure for Stockton
East Water District and a flood control channel for Haley Trust Property, City of Poway. He will be Project Manager for this project.
4. Mr. David Cline has 11 years of engineering experience. He has been involved in
design and construction of several engineering projects. As a project engineer he will be responsible to coordinate the efforts on the hydraulic and erosion study and preparation of plans and specifications for this project.
Complete resumes for the project team members follow.
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MOI ARZAMENDI geotechnicd and coastal engineering
EDUCATION
Ohio State University: M.S., Civil Engineering, 1985 Ohio State University: B.S., Civil Engineering, 1983
REGISTRATION
Civil Engineer, No. 43782, 1989
Special Inspector, Pile Driving, City of San Diego, 1986
PROFESSIONAL HISTORY
Woodward-Clyde Consultants, San Diego, Geotechnical/Coastal Engineer, 1985-present Ohio State University, Structural Materials Research Assistant, 1985 Ohio State University, Soils Laboratory Research Assistant, 1984-1985 Ohio State University, Steel Design Teaching Assistant, 1983 Mason, Sandefur & devertevil, Inc., Materials Laboratory Technician, 1980-1983
REPRESENTATIVE EXPERIENCE
Mr. Arzamendi has experience in geotechnical and coastal engineering, laboratory testing,
computer programming/analysis, and related field practice. His responsibility has included
engineering analysis of earth slopes, buried structures, geotextile walls, coastal revetments
and seawalls, liquefaction potential, response spectra, settlements, foundations, pavements,
compacted fills, and other various types of soil-structure interaction problems. In addition,
materials including soils, concrete/cement, and asphalt. Mr. Arzamendi has also had field experience in compaction grouting, pile driving, soil sampling, site reconnaissance, earthwork, and foundation excavation observations.
Highlighting his professional and academic accomplishments are:
his experience includes an extensive background in laboratory testing of civil engineering
Geotechnical investigation for the Point Lorna Wastewater Treatment Plant Outfall
Extension, San Diego, California. Project included a major field investigation usirg
submersible cone penetrometer and vibracore equipment, laboratory testing of seafloor sediments, analyses of seismically and wave induced liquefaction potential, dredging characteristics, seafloor stability, bearing pressures and settlements.
Geotechnical investigation for the Batiquitos Lagoon enhancement project, Carlsbad,
California. Investigation included assessment of lagoon dredging characteristics,
dredge material proposal, sedimentation settling, beach nourishment, slope stability, bridge foundation analyses, and seismic design considerations.
Geotechnical investigations for the Clean Water Program New Facilities and Pipelines including: North City Reclamation Plant, North City Sludge Processing Plant, Santee
Reclamation Plant, Mission Valley Sludge Pipeline, and Santee Sludge Pipeline.
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Geotechnid/coastal investigation and design for Carlsbad Boulevard Shore Protection
at Agua Hedionda Lagoon, Carlsbad, California. Project includes design of a cantilever steel sheet pile wall to resist forces related to coastal erosion and earth stability.
Geotechnical investigation for the proposed Roger-Moms Plaza in downtown San
Diego, California. Included evaluation of foundation systems for multi-function high-rise tower (500 feet), pavillion, underground parhg structure, shored
excavations, and seismic design considerations.
Geotechnical investigation for the proposed Alga Road School located in Carlsbad,
California, including subsurface investigation, slope stability, effects of deep fills, and foundation analyses.
Geotechnical investigations and engineering analysis for several projects for the
University of California - San Diego including medical center improvements and
additions, the International relations and Pacific Studies Studies Campus, Third
College Residence Halls, and student services building.
Geotechnical investigations and engineering analysis for several projects for the San
Diego Gas and Electric Company including slope stabiIity analyses for the new South
Bay Service Center, earthwork at the Encina Power Plant, the downtown Substation "B," the gas compressor station in Morena, California, and the Dana Point Substation
in Orange County, California.
Geotechnical investigation for the Point Loma Waste-Water Treatment Facility
Proposed Sedimentation Basins No.9 and 10, including subsurface investigation,
foundation and slope stability analyses.
Thesis research for Master of Science degree encompassed experimental research in fracture mechanics, strength and fracture toughness testing of a Macro Defect Free
Cement. This research was awarded the American Concrete Institute Award of
Academic Excellence in 1985.
HONORS
American Concrete Institute Award of Academic Excellence, 1985
Charles B. Smith Award, Structural Engineering, Ohio State University, 1983
AFFILIATIONS American Concrete Institute
Structural Engineers Association of California
Amencan Shore and Beach Preservation Association Amencan Society of Civil Engineers
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JAMES E. CAVALLIN
EDUCATION
San Diego State University: M.S., Civil Engineering, 1970
San Diego State University: B.S., Civil Engineering, 1965
Oregon State University: B.S., Forest Engineering, 1957
REGISTRATION
Geotechnical Engineer: California, 1987
Civil Engineer: California, 1967
Land Surveyor: Oregon, 1960
PROFESSIONAL HISTORY
Woodward-Clyde Consultants, Senior Engineer to Associate, 1965-present
Private Land Surveyor, 1962-1965
Hines Lumber Company, Field Engineer, 1957-1962
REPRESENTATIVE EXPERIENCE
Mr. Cavallin has experience in soil and foundation engineering for a variety of commercial
land development, high rise, and waterfront construction projects, with a particularly
extensive record of work on hydraulic structures, earth and rockfill dams and reservoirs.
His responsibility has encompassed the initial field investigation and design phases to final
construction, including preparation of specifications and bid proposal documents.
His experience includes that of Supervising Soils Laboratory Engineer for the San Diego
office soil laboratory for the last ten years and the establishment of field sails laboratories
for large construction projects in this country and overseas.
Features of some interesting projects he has participated in are testing of various types of
clay soil and membrane liners for containment of brine and the testing design and
construction of hydraulic asphalt concrete for reservoir linings to store potable water and
waste water With pH range of 3 to 10.
Design of proposed HDPE lining system for a large blowdown water evaporation
pond at Palo Verde Nuclear Station in Arizona; a multi-layer system with internal
drain to collect leakage.
Design and construction of brine storage and solar evaporation ponds at Trona
California using a combination of compacted and natural claybeds and butyl rubber
membrane perimeter cutoffs; five ponds totallying 100 acres.
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Design and construction of a soil cement lined reservoir, Borrego Springs, California.
Seismic stability analyses of an existing Chollas Dam and design and preparation of
plans and specifications for modification to the dam embankment to increase stability.
Engineering studies of an existing watershed, Patagonia dam and spillway and design
of modifications to pass a larger flood done for Arizona Department of Water
Resources.
Design and construction inspection of hydraulic asphalt concrete lining for reservoirs
at Mono and Pala Mesa for the Rainbow Municipal Water District and at South Bay
and Encina Power Plans for San Diego Gas & Electric.
Preliminary geotechnical evaluation of dam and reservoir sites for Eastside reservoir
project for Metropolitan Water District of Southern California; field reconnaissance
of dam sites and rating of the sites in accordance with developed criteria; conceptual
design of an asphalt concrete upstream facing for a dam at one of the sites.
AFFLIATIONS
American Society of Civil Engineers
Society of American Military Engineers
International Society for Soil Mechanics and Foundation Engineering U.S. Committee on Large Dams
Structural Engineers Association of San Diego
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DAVID Id CLINE hydrology
hydraulics
database management
civil engineering
EDUCATION
University of Utah: B.S., Civil Engineering, 1988
REGISTRATION
Engineer-In-Training , #UT1007909990, 1988
American Concrete Institute, Grade 1
Nuclear Testing Equipment
PROFESSIONAL HISTORY
Woodward-Clyde Consultants, Assistant Project Engineer, 1988-present Bingham. Engineering, Staff Engineer, 1987-1988
PRC Engineering, Designer, Technician, 1985-1987
J.J. Johnson & Associates, Surveyor, Designer, 1979-1985
REPRESENTATIVE EXPERIENCE
Mr. Cline has been involved in the study, design and construction of engineering projects
for the last 11 years. As task leader on several large Environmental studies, his primary
responsibilities have included management and development of Data Base Management
Systems (DBMS). In the growing field of Geographical Information Systems (GIS) Mr.
Cline has been involved in all aspects of cartographic and digital information development.
Project application has included system software involving all areas of CAD from Macintosh
based drafting software to PC based Autocad software to Muti user GIS systems such as
ARC/INFO. With his work in hydrologic and environmental areas he has an understanding for the various applications involving resource management and its related disciplines.
San Diego Gas & Electric Combined Cycle Power Plant Notice of Intent Report.
Task leader for lOOK dollar graphical output involving approximately 400 figures.
Figures were developed using Autocad, Macintosh and Board Drafting. Data
collection incorporated various formats including Arc Info files, Digital Line Graph
files and USGS top0 maps.
City of Phoenix Stormwater Runoff NPDES permit. Developed graphical and
relational database formats for NPDES application requirements. Graphical output
was developed using Autocad with output to Arc Info files. Relational Database files
were developed using Oracle and Lotus 123.
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@ West Desert Pumping Project, Utah State Division of Water Resources, Utah -
Pumping of 600,OOO acre-feet from Great Salt Lake to west desert of Utah to create
evaporation of excess flood waters. Assisted design and supervised construction of
7-mile earthen containment dike and 1,000-foot adjustable - level overflow device.
Crew chief for 20-mile level loop survey.
Little Dell Reservoir, Salt Lake City Municipal Corporation, Utah - Assisted design
of 30,000 acre-feet reservoir for large metropolitan water supply and flood control.
Managed materials testing for earth embankment dam.
Deer Valley Ski Resort, Park City, Utah - Participated in design and surveyed
construction of 2,000-unit planned community and ski resort. Included were extensive
erosion control, road and utility layout and McHenry Canyon Detention structure.
Haley Trust Property, City of Poway, Poway California - Hydraulic evaluation of
Poway Creek. Analyses included hydraulic modeling using US. Army Corps HEC-2
program.
Alton Coal Project, Utah International, Kanab, Utah - Feasibility study for coal slurry
line from southern Utah to Nevada Power, Las Vegas. Field technician for large
scale groundwater modeling study. Monthly monitoring of 45 wells, depths up to
2,000 feet.
Park City Master Water Plan, Park City Municipal Corporation, Park City, Utah -
Drafted master water plan and assisted study of expansion alternative in high growth
area.
Chevron Chemical Phosphorus Plant, Chevron Chemical, Salt Lake City, Utah -
Field technician for groundwater and tailing pond Closure of fertilizer plant.
monitoring and analysis.
HONORS
Graduated with Special Citation in Civil Engineering 1988
Letter of Commendation - American Society of Civil Engineers - National Headquarters
President - Student Chapter - American Society of Civil Engineers
AFFILIATIONS
American Society of Civil Engineers
Water Pollution Control Federation
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ARSALANDADKHAH hydrolhgy
hydraulics
sediment transport
civil engineering
EDUCATION
Utah State University: Ph.D., Civil and Environmental Engineering (Hydrology and Water
Utah State University: M.S., Civil and Environmental Engineering (Hydraulics), 1981
College of Science and Technology, Tehran, Iran: B.S., Mechanical Engineering, 1967
REGISTRATION
Civil Engineer: Utah, California, Arizona
PROFESSIONAL HISTORY
Woodward-Clyde Consultants, Senior Project Engineer, 1987-present
James M. Montgomery Consulting Engineers, Inc., Salt Lake City, Pasadena, 1984-1987
Tehran Regional Water Board, 1969-1978
REPRESENTATniE EXPERIENCE
Dr. Dadkhah" has 15 years engineering experience with emphasis in hydrology and
hydraulics. He has been involved in the planning, design and construction of various water
resources projects. Dr. Dadkhah has a strong background in computer modeling and is
familiar with most of the existing hydrologic, hydraulic and groundwater models. Recent
projects include the following:
Resources), 1984
Guajome Marsh hydrology assessment, Oceanside, California. The study includes
water and sediment analyses for Guajome Marsh, evaluation of runoff entering into
the marsh, evaluation of the erosion in the marsh watershed, and estimate the annual
sediment entering the marsh. The project also includes development of alternatives
to control the sediment.
Evaluation of Hydrologic and Hydraulic characterization of City of Phoenix, Arizona,
for NPDB municipal stormwater permit. Analyses included estimating representative
storm, evaluating existing control structures, and discharge characterization.
Developed a sampling program for Part I1 of NPDES permit.
Hydraulic modeling of Atlas-Coalinga site in Fresno County, California using the
SEDIMOT II computer program. The objective of the study was to determine the
relative contributions of asbestos particles from the asbestos mine sites to the
California Aqueduct.
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Design of hydraulic structures for Stockton East Water District, Stockton, California.
The design involved the modification of an existing dam, including the addition of
flow measuring structures and a division structure containing two large, remote
controlled, radial gates among others.
Design of a permeable weir for the City of Santa Barbara, California. The purpose
of the weir was to reduce sediment transport into Gibraltar reservoir and create
upstream habitat for endangered bird species.
Groundwater study to evaluate the capacity and response of the groundwater formation
at Unisys Corporation Facility, Carlsbad, California with respect to reinjected
groundwater aquifer, simulation of discharge and recharge wells, and providing
recommendations regarding well locations and recharge rates.
Hydrologic study to evaluate Probable Maximum Precipitation and watershed
evaluation to estimate the Probable Maximum Flood for 14 dam sites in Western
Riverside County in construction with the Eastside Reservoir Project, for the
Metropolitan Water District of Southern California. The study also included
assessment of flood control capability and determination of the spillway size required
for each dam site.
Involvement in dam break analyses and inundation studies for Bishop Creek Intake
No. 2 and Balsam Meadow Dam in California.
Developed storm drain master plans for the Cities of West Jordon and West Valley
in Salt Lake County, Utah, utilizing the HEC-1 computer model. Project engineer for storm drain master plan for the City of Visalia, California.
Prepared a water master plan for the City of West Jordan, Utah. The work required
an analysis of the existing water distribution system and development of a distribution
master plan for the projected ultimate city development.
prepared a sewer system master plan for Central Davis Sewer District. The project
required analysis of the existing sewer collection systems for the Cities of Farmington,
Keysville and Fruitheight and preparation of a master plan to meet the future
requirements of the three cities.
Conducted a flood insurance study for several creeks in Shasta County, California,
and Clark County Nevada according to Federal Emergency Management Agency
(FEMA) guidelines.
Provided a hydrologic study for Sespe Creek, California, Utilized HEC-4 and HEC-5
to perform an analysis of proposed reservoir systems for the purpose of determining
potential water supply availability.
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ARSALANDADKHAH Page 3
Responsible for predesigning the dikes around the Great Salt Lake for the Great Salt
Lake Diking Feasibility Study and the Farmington Bay Area Perimeter Diking
Alternative Study. Utilized the HEC-2 model to simulate backwater effects in several
rivers and canals draining into the lake.
Responsible for implementation of various municipal water supply and distribuQQn
system projects for Tehran Regional Water Board. Projects included construction of
a six-mile long, 48-inch diameter steel pipeline for Tehran Pars Water Supply Project;
construction of 40 des of water distribution system piping, including pipes up to 28
inches in diameter, in Tehran Pars; and construction of a 24-inch collection system
and transmission lines, totaling 20 miles in length, for the Kan Well Field.
Dr. Dadkhah served as a research assistant the Utah Water Research Lab during his Ph.D.
program at Utah State University. He participated in a detailed research study involving
seepage and heat loss between solar ponds and groundwater. Dr.Dadkhah developed two
computer codes using finite difference techniques to simulate both seepage and heat transfer
from the Solar pond to the underlying groundwater.
AFFILIATIONS
American Society of Civil Engineers
American Public Works Association
PUBLICATIONS AND PRESENTATIONS
Dadkhah, Arsalan, "Friction Characteristics of Very Rough Corrugated Pipes," 1981, M.S.
Amkcan Water Resources Association
Thesis, Utah State University, Logan, Utah.
Dadkhah, Arsalan, "Heat Transfer From a Solar Pond Through Saturated Groundwater
Flow," 1985, Ph.D. Dissertation, Utah State University, Logan, Utah.
Dadkhah, ArsaIan, J.P. Riley, and J.C. Batty, "Heat Transfer from a Solar Pond through
Groundwater Flow," Paper Presented at Solar Engineering Seminar, March, 1987,
Honolulu, Hawaii.
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CAROL L. FORREST hydrology sedimentation erosion control
civil engineering
EDUCATION
San Diego State University: M.S., Civil Engineering, 1982
San Diego State University: B.S., Civil Engineering, 1977
University of California, Berkeley: B.A., Anthropology, 1971
REGISTRATION
Civil Engineer: California, 1980
Civil Engineer: Arizona, 1985
Geotechnical Engineer: California, 1987
PROFESSIONAL HISTORY
Woodward-Clyde Consultants, Vice PresidenVSenior Associate, 1977-present
Scripps Institution of Oceanography, La Jolla, California, 1973-1975
REPRESENTATIVE EXPERIENCE
Ms. Forrest specializes in surface water hydrology and hydraulics, and has over thirteen
years of varied experience in this field. With a background in both geotechnical engineering
and hydraulics, she has a multidisciplinary approach toward evaluating erosion and
sedimentation problems and the cost effectiveness of various mitigation measures. Such
problems include the potential for flooding, stream erosion and sedimentation, hillside
erosion and stability, the impacts of structures on surface water, and watershed management.
She is currently President of the International Erosion Control Association and is serving on
following:
Phoenix NPDES Stormwater Permit, City of Phoenix, Arizona - Project manager for
appkation to the EPA for large municipal stormwater permit. Water quality analyses
requiring facility wide descriptive analyses, field screening and sampling program,
discharge characterization and existing control structures.
the Mayor of San Diego's Land Development Advisory Board. Recent projects include the
Fannington Canal, Stockton East Water District, Stockton, California - Hydraulic
design for a new water conveyance system, including: design of modifications to an
existing dam, design of a flow diversion structure, design of gaging stations and
low-water crossings, evaluation of existing creek capacity.
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Gibraltar Dam, City of Santa Barbara, California - Design of a large permeable weir
structure to trap sediment and elevate critical habitat for an endangered bird species
sediment yield; evaluation of offsite habitat mitigation areas.
above the inundation limits of a dam raise. Evaluation of watershed hydrology and
Atlas-Coalinga, Fresno County, California - Hydraulic modeling of watershed areas
to show relative contributions of asbestos particles to downstream towns and the
California aqueduct. Sources include asbestos mines and tailings as well as undisturbed asbestos-rich soils.
Yuma Crossing Park, City of Yuma, Arizona - Hydraulic feasibility study to evaluate
several alternative methods of increasing the water depth of the Colorado River
through Yuma; evaluated the impacts of the alternatives on the hydraulic regime,
sedimentation, flooding, and other environmental concerns.
Tecolote Canyon Natural Park, City of San Diego, California - Erosion study to
evaluate present and potential sources of erosion; alternative design recommendations;
cost-benefit analyses; public council meetings. Development of construction plans and
specifications for erosion control in 30 areas of watershed; design of access road and
bicycle path system; overall watershed management plan.
Hazard Channel, Mission Valley, San Diego - Hydraulic analyses for proposed
configurations, lining treatments, and box culvert designs at road crossings; evaluation
of impacts of flood stages in San Diego River on channel hydraulics.
tributary channel flowing into San Diego' River: evaluation of alternative channel
Ms. Forrest has been responsible for numerous hydrologic studies for analysis of storm
drains, open channels, natural streams, and rivers. She has made many public presentations
and has worked with citizen groups, public agencies, and task forces. She has prepared
feasibility studies as well as plans and specifications for construction.
Ms. Forrest has also performed evaluations and design of surface drainage facilities and
remedial action plans for several municipal and hazardous waste landfill projects. The
projects include:
South Chollas Landfill - Preparation of closure plan for municipal landfill.
Willw Landfill - Preparation of remedial action plan for removal of hazardous waste
from a Caltrans-owned site in Los Angeles to a Class I disposal site.
19th Avenue Landfill - Review and evaluation of remedial action plan for landfill
located on the banks of the Salt River in Phoenix, Arizona.
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West Iblhmar Landfill - Evaluation of design of surface drainage facilities and leachate dams for new municipal landfill in San Diego, California.
Sander Project - Investigation of gas migration potential for proposed trash-to-energy
plant to be located adjacent to an existing landfill in San Diego, California.
Ms. Forrest has worked with computer programs such as HEC-1, HEC-2, HEC-6, Fluvial,
and Sedimot II. She has taught university-level laboratory courses in soil mechanics,
evaluating the properties and strength characteristics of soils, and has been active in technical
programs with engineering societies.
HONORS
Graduated with Distinction in Civil Engineering, 1977
San Diego Rock Producers Scholarship, 1977
Chi Epsilon, Honorary Civil Engineering Fraternity
Tau Beta Pi, Honorary Engineering Fraternity
Outstanding Young Woman of America, 1981
Woodward-Clyde's Innovative Practice Award, 1986
AFFILIATIONS
American Society of Civil Engineers
Society of Women Engineers
S.D.S.U. Engineering Council Outreach Committee
International Society for Soil Mechanics and Foundation Engineering
American Shore and Beach Preservation Association
Soil and Water Conservation Society
Society for Marketing Professional Services
International Erosion Control Association
City of San Diego Land Development Advisory Board
California Watershed Management Council
PUBLICATIONS AND PRESENTATIONS
"The Liquefaction Potential of Harbor Island," Misters Thesis, Department of Civil
Engineering, SDSU, 1982.
"Sediment Yield - Predicting Rainfall Erosion Losses," Research Paper, Department of Civil
Engineering, SDSU, 1982.
"Erosion Control CostIE3enefit Studies for Transmission Line Access Roads," proceedings
of International Erosion Control Association Conference XV, 1984.
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"New Treatments Help Control Erosion, " Landscape Architect and Specifier News, November 1987.
"Treatments for Soil Erosion," Land and Water Magazine, January 1988.
"Preventing Soil Erosion," Grounds Maintenance Magazine, February 1988.
"Erosion Control Workshop, " ASCE AMF Seminar, October 1988.
"Liquefaction Risk Analysis for a Harbor Fill," Marine Geotechnology, 1989.
"Erosion Control: The United States Perspective, " Proceedings of European Conference,
International Erosion Control Association, London, April 1989.
"Erosion Control in the United States Today: An Overview," Proceedings of International
Erosion Control Conference XXI, 1990.
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PATRICIA M. MURRAY civil engineering
water resources
environmental engineering
EDUCATION
Villanova University: B.S., Civil Engineering, 1989
PROFESSIONAL HISTORY
Woodward-Clyde Consultants, San Diego, California, Senior Staff Engineer, 1989-present
REPRESENTATIVE EXPERIENCE
Involved in various tasks for the City of Phoenix’ submittal of the Part I Application to the
U.S. EPA for a National Pollutant Discharge Elimination System Permit for stormwater.
Tasks include:
Mapping and development of data base to describe existing stormwater facilities and
other facilities,
Developing discharge characterization data base and conduct receiving water
assessment,
Conducting field screening analysis to identify illicit discharges and illegal
connections,
Developing illicit discharge and illegal connection elimination program,
Developing representative sampling plan, and
Describing existing stormwater management program.
Involved in a landfill closure plan for the Marine Corps Air Ground Combat Center Landfd
#2 in Twentynine Palms, California. Preparation of this closure plan included conducting
the Hydrologic Evaluation of Landfill Performance (HELP) Computer Model to estimate the
amount of percolation into the landfill. Preparation also included using the U.S. Army
Corps of Engineer’s HEC-1 computer model to estimate the runoff in the study arm. the
results of the HEC-1 analysis were used in developing the drainage and erosion control plan.
Responsible for overall coordination of the closure plan report. This involved coordinating
with the geologists, geotechnical engineers, and other civil engineers involved in the project.
Performed an environmental audit and prepared the report for a surface preparation and
coating facility servicing U.S. Navy vessels. The environmental audit assessed the facility’s
compliance with various environmental regulatory schemes.
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PATRICIA M. MURRAY Page 2
Prepared a Hazardous Materials Business Plan for the University of San Diego for submittal
to the County of San Diego Hazardous Materials Management Division. Preparation of the
Hazardous Materials Business Plan included conducting a chemical inventory of the entire
university, coordinating with various county regulatory personnel and completing the necessary forms to be included in the plan.
AFFILIATIONS
American Society of Civil Engineers
Society of Women Engineers
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WoodwardGlyde Consultar Reference No. 905 1262P
5.0 SCHEDULE
The proposed schedule for completion of the project is attached. We anticipate the work
outlined herein to take approximately ten (10) weeks.
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APPENDIX A
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Cost Estimate
A breakdown of cost estimate based.on the project scope of work, by staff level, required
hours and billing rate, is presented in the attached table. We anticipate the total cost of this
project will be $28,788 (with the core sampling option to evaluate the extent of voids) or
$37,716 (to include nondestructive testing option).
COST ESTIMATE BY TASK
- Note: Numbers in parenthesis indicate the hours and cost associated with the nondestructive testing optic
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1. RESOLUTION NO. 92-102
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
CARLSBAD, CALIFORNIA, APPROVING A CONSULTANT AGREEMENT FOR BUENA VISTA CHANNEL REPAIRS, PROJECT NO. 3385
WHEREAS, the City Council of the City of Carlsbad requires
services of a professional engineering consultant to provide analysis and des
services for repairs to Buena Vista Channel; and
WHEREAS, a scope of work and consultant agreement has been prep;
for said services; and
WHEREAS, the City Council hereby finds it necessary, desirable,
in the public interest to approve said agreement.
NOW, THEREFORE, BE, IT RESOLVED by the City Council of the Citj
Carlsbad, California, as follows:
1. That the above recitations are true and correct.
2. That the consultant agreement between Woodward-Clyde Consultants
the City of Carlsbad is hereby approved and the Mayor and City Clerk are he1
authorized and directed to execute said agreement.
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3. Following the Mayor’s signature of said agreement, the City Clerk
the City of Carlsbad is hereby authorized and directed to forward copies of s
agreement to David K. Cline, Woodward-Clyde Consultants, 1550 Hotel Circle Nor
San Diego, California, 92108, and the engineering department for their file
PASSED, APPROVED AND ADOPTED at a regular meeting of the Carls
City Council held on the 14th day of April , 1992 by the follow
vote, to wit:
AYES: Council Members Lewis, Kulchin, Larson, Stanton and Nygaard
NOES: None
ABSENT: None
ATTEST :
ALETHA L. RAUTENKRANZ, City Clerk