Loading...
HomeMy WebLinkAbout1992-04-14; City Council; 11635; APPROVAL OF A CONSULTANT AGREEMENT FOR BUENA VISTA CREEK CHANNEL REPAIRS PROJECT NO. 3385r - -1 + 0 W & pt II a Q: z 0 F* 0 a 9l 0 z 3 0 0 I -I Cly(.OF CARLSBAD - AGEW BILL +s. AB # I/, 6 3 5 TITTE: DEPT! HD. ! 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. 2 e Page 2 of Agenda Bill No. 11, h ? 6 ? 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. * 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 + . - e e . 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. 1 Rev. 2/3/92 I - e e 1. 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 2 Rev. 2/3/92 I - 0 0 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 3 Rev. 2/3/92 , I 0 e . 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. 4 Rev, 2/3/92 0 0 * 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 Rev. 2/3/92 5 .. 0 0 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 e 0 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 > 6 Rev. 213192 0 e 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. 7 Rev. 2/3/92 . 0 0 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. Rev. 2/3/92 8 0 0 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. 9 Rev. 2/3/92 0 e 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 10 Rev. 2/3/92 0 0 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 11 Rev. 2/3/92 0 a 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 12 Rev. 2/3/92 0 0 . 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, 13 Rev. 2/3/92 - c q q 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. 14 Rev. 2/3/92 e e 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 15 Rev. 213192 0 0 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. 16 Rev. 2/3/92 0 0 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. .... .... .... .... .... .... .... 17 Rev. 213192 0 0 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 * e 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 e Woodward=Clyde Consultan 0 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 0 0 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. dad 1-1 0 Woodward=Clyde Consultan 0 Reference No. 905 1262P 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. dad 2- 1 0 Woodward-Clyde Consultan 0 Reference No. 905 1262P 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. dad 2-2 e Woodward=Clyde Consultar * Reference No. 905 1262P 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 dad 2-3 0 Woodward=Clyde Consultan Reference No. 905 ? ~62P 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. dad 2-4 c 0 0 Woodward-Clyde Consultan Reference No. 905 1262P 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. dad 2-5 - 0 0 Reference No. 905 1262P WoodwardGlyde Consultan 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. dad 3- 1 .. 0 0 Reference No. 905 1262P Woodward=Clyde Consultan 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, dad 3-2 e Woodward-Clyde Consultani 0 Reference No. 905 1262P 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. dad 3-3 - 0 0 Woodward-Clyde Consultan Reference No. 905 1262P 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 - dad 3-4 Woodward-Clyde Consultani 0 Reference No. 905 1262P 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 dad 3-5 0. Woodward=Clyde Consultani 0 Reference No. 905 1262P 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 dad 3-6 0 Woodward-Clyde Consuitan Reference No. 9051 9 62P 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. dad 4- 1 e e Woodward-Clyde Consultar 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. ARZAhENDI-MI 4/91-139 e 0 Woodward=Clyde Consultan MOI ARZAME;NDI Page 2 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 ARUMENDIM1 4191-139 * w Woodward-Clyde Consultan 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. CAVALLIN-JE3 4191-1 IO a Woodward-Clyde Consultan 0 JAMES E. CAVALLIN page 2 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 CAVAUIN-IE3 4/91-1 IO 0 WoodwardGlyde Consultan! ,- 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. CLINEDK2 4/91-250 0 Woodward=Clyde Consultan 0 DAVID K. CLINE page 2 @ 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 CLINE-DIU 4/91 -250 0 rn Woodward=Clyde Consultai 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. DADKHAH-Al4191-028 0 m WoodwardGlyde Consultan 1 ARSALAN DADKHAH Page 2 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. DADKHAH-A14l91-028 w Woodward-Clyde Consultar a 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. DADKlUH-A14/91-m8 0 0 Woodward=Clyde Consultan 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. FORR€ST-CI2 4/91U?2 0 Woodward-Clyde Consultar 0 CAROL L. FORREST Page 2 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. FORREST-CL2 419140'2 0 WoodwardmClyde Consultan 0 CAROL L. FORREST Page 3 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. FORRESTcL2 4191-002 m Woodward-Clyde Consultan 0 CAROL L. FORREST Page 4 "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. FORREST-CL2 4/91a Woodward-Clyde Consultan 0 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. MURRAY-PMl 4/91-22] - 0 0 Woodward- Clyde Consultan 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 MURRAY-I'M1 4/91-221 - 0 e 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. dad 5- 1 " -, .--.- I/; ' 8: , , 1 'X1 ' : .(. I- --l 0 0 .- Reference No. 905 1262P Woodward-Clyde Consultan b APPENDIX A 254 FORM dad c I"- -. -. %wEiim~~~~ iamms2%H 3539%32233 553s h e 0 -. ul 8.;; .- aa 32 Q a$q$SqgqzE$ Z& 4 u= d-;q;g~agzdz 2% a2 slayssap: s-4 m- - b Om LZ P w d Eg!SESB33$i 2- mawmmi3 eg 00 nnnnhnnnn a Y) Pa 3 !i ocrcJs&rnm*mg; 32 Ob 2 2 G qqa 4 8 w-4-3 c: qqq3 w d s? *. 4 % fi 0, So% bz Sa~p3p~~ z h gE eae*cJmwg 323 ~~856660 ddl=rtWsms 40 %z E;rGhnnnnnn GO f & In a9 -0 1 02 &G*&gW~d Ki f 3s ii. %vJ - 0 2.g E2 486pK5pqz + r( d~ -8 g0.1 t !? .- 8 -E 0 *9 0 0 rnb0db-I m* 2 i= 20 sL2sG%g&%g a A g 5% nnn-nn-nnsd 5 .r" &-u L z z 83 E qzgzg f $ P 0 .L v) Y VI w L.5 2 0- LI v) d LL 0 tr dmm-?wmbmrnd 20 0 Q - n q -3 -z ;rj g - GZ.+ $54 3 g b\ c.l % 5 s 2 5 5 : 8 A% U 8 8 3 3 d 8 d 2 p3 CI g: &a GC ut=. - v) 4 ). 8 r -s* (ra 71 3s una- Q a 2 O 8 L.0 2 .e 0 2.2 CI .- P s $e 3 54 ZB 3 3 324 0 9 I S3=wbas qg 333 'd ;*;;a a*a z8ig:z*sg., ME ggcp 3" y&mg:g?;P I 54a Baa 8g 8 8; I 4 38 I 9 15 &I q &I 8 Z$ =+ 3 a- 8.; oE 44 .$ sq g8 BB s4 X (r p$E 0*%G 2pg b 3 @j4 14 PI a$d d * o~nsne ,z=0q 02'0 8 aa 3ag a@; 88 i a 0 3 .I d Y m 0 I E E \ 3 -0 , V c1 Y z # gs 0 'J 3 H 8 t-h a .Y 3 k 35 zz 'iu a0 9% 02 ,si !i.r;.8 zr" $46 s3 uu xu 22 gU g irl py kj&I 0 & 0 a u -0 9 d 0 8 0 s 0 2 L2 0 34 g 2s a I ‘h .- -2 E d s !! % 3 3 F e4 8 v) v) I P II 3 3 4 s 3 5 3 % o\ m 3 3 s 8 8 8 g 5: R w 3 us I I 3 3 8 s s 3 3 % o\ 8 OI 3 s 3 3 s s 4 8 .. 0 CI a" " r( CJ g888- v) 5 3 2 8 0 r( a e WoodwardlCly 9 e -s 2- Consultants U 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 Cm51262P 1 \ A,. .-i -* P c 2 3 4 5 6 7 8 9. 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 W 0 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. /// /// /// /// /// /// /// /// /// /// /// /// ha 1, 9 i -# r c 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 * w 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