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Home My WebLink AboutCSA-1CITY OF SEBASTIAN, FLORIDA WORK AUTHORIZATION CONSULTANT SERVICE AGREEMENT (CSA) Dredging & Marine Consultants 200 S. Indian River Drive Suite 305 Ft. Pierce, FL 34950 Work Authorization No.: CSA #1 Project Identification: Proposal for Preliminary Design and Permitting Services Earth Embankment Design specifications Southern Drainage Canal and Waterway System Sebastian, Indian River County, Florida IT IS AGREED that DMC will undertake the following work in accordance with the provisions of the DMC Master Agreement entitled Non -Exclusive Continuing Professional Services Agreement for Engineering Dated July 12, 2017. Description of Assignment: See Attached Proposal — 17 August 2017 Work Scope: See Attached Proposal — 17 August 2017 Basis of Compensation/Period of Services: Sec Attached Proposal — 17 August 2017 DNIC Gf/1/Vb Name/Title: ��t^tG' �'^ Attest: Helie A1'illianu. Al?.IC itc Clel;k CITY OF SEBASTIAN Joe Griflin City Manager Approved as to Form and Content for Reliance by the City of Sebastian Only: C(U14 ynthia V. Flail Interim Cite Attorney Dmdg.9 A h ,i comwi ms DMC ENGINEERS • SCIENTISTS August 17, 2017 DMC Proposal No. 17-137-01 Mr. Joe Griffin, City Manager City of Sebastian 1225 Main Street Sebastian, Florida 32958 Re: Proposal for Preliminary Engineering Design and Permitting Services Earth Embankment Design Specifications Southern Drainage Canal and Waterway System Sebastian, Indian River County, Florida Dear Mr. Griffin: Dredging & Marine Consultants, LLC (DMC) is pleased to submit this proposal to provide preliminary engineering design and permitting services for the above referenced project. It is our understanding that the City of Sebastian desires general design specifications and typical cross sections for earth embankment canal slope repairs, for future canal slope repairs to be performed on as -needed basis, along the 6.5± miles of existing canals within the Southern Drainage Canal and Waterway System, as shown in Figure 1 on the following page. In addition, we further understand that the City also desires general engineering comments and recommendations for any anticipated changes to the stormwater drainage and canal conveyances of the overall drainage canal system with the proposed earth embankment canal slope repairs; input from the St. Johns River Water Management District (SJRWMD) for any mitigation measures that may be required; input from SJRWMD regarding a "Conceptual Master Permit' to expedite the permitting process when specific canal slope repairs will be needed; and anticipated cost estimates for the repair activities. SCOPE OF SERVICES As requested, the scope of our work for this preliminary phase of the project will be performed utilizing the limited geotechnical and survey information presented in the 2015 Seawall Assessment report and from any other readily -available sources. We note that complete engineering evaluations of the stormwater drainage, slope stability and seepage analyses, and the engineering design with associated cost estimates of the subject canal slope repairs will require a thorough topographic survey with detailed cross sections of the canals at 100± foot intervals, and geotechnical soil borings performed to depths of 20 to 30 feet along the top of bank of the canals at maximum 1,000 foot intervals. DMC will assist with the following services as indicated in the tasks shown below. Task 1: Site Reconnaissance and Review of Background Information • DMC will review the 2015 Seawall Assessment report and associated geotechnical and survey information provided by the City. • DMC will also review all additional information provided by the City (i.e., surveys, right-of- way limits, stormwater drainage maps and water control structure elevations). In addition, we will review any geotechnical and/or survey information available from other sources (e.g., USDA SCS Soil Survey for Indian River County). 200 South Indian River Drive, Suite 305 • Fort Pierce, Florida 34950 • Phone: 772-801-5561 • Fax: 772-801-5561 www.dmces.com Earth Embankment Design Specifications City of Sebastian Southern Drainage Canal and Waterway System DMC Proposal No. 17-137-01 Page 2 DMC will perform a site reconnaissance of the Southern Drainage Canal and Waterway System to further investigate the existing conditions of the subject canal slopes. As shown in Figure 1 below, it is our understanding that the subject site consists of the following: 1. The Elkcam Waterway, from Clearbrook Street to Barber Street 2. The George Street Canal, from the Elkcam Waterway to the South Collier Canal 3. The Schumann Waterway, from the Elkcam Waterway to Laurel Reserve Drive 4. The South Collier Canal, from Sebastian Boulevard to South Easy Street Figure 1. Subject 6.5t miles of canals within the Southern Drainage Canal and Waterway System. AM :.cmunana ENGINEERS Earth Embankment Design Specifications City of Sebastian Southern Drainage Canal and Waterway System DMC Proposal No. 17-137-01 Task 2: Preliminary Engineering Design Services Page 3 • DMC will generate the typical cross sections and general specifications for the earth embankment canal slope repairs, will submit them for City review at the 30%, 60% and 90% completion stages, and will be finalized based on the City's comments. • DMC will provide preliminary engineering comments and recommendations regarding the stormwater drainage and canal conveyance of the system associated with the earth embankment canal slope repairs and new canal cross-section geometries, under the assumption that all the subject canal slopes were to be repaired at the same time. • DMC will provide one general cost estimate for each typical cross section provided. Task 3: Permitting Services • DMC will conduct meetings with the St. Johns River Water Management District (SJRWMD) to review the typical cross sections and general specifications for the earth embankment canal slope repairs. In addition, we will discuss with SJRWMD any mitigation measures that may be required, and the process for obtaining a "Master Permit" to expedite the permitting process when specific canal slope repairs are needed. DMC staff will submit complete environmental resource permit (ERP) applications to all necessary agencies, and will respond to any requests for additional information (RAls) until the permits are issued. Please note that any permit fees will be the City's responsibility. FEE ESTIMATE Our fees associated with the aforementioned tasks are summarized below and are itemized in the attached Fee Estimate Breakdown. Additional services (e.g., assistance with securing potential grants from funding agencies) can be quoted upon request. Task 1: Site Reconnaissance and Review of Background Information........... $ 14,820.00 Task 2: Preliminary Engineering Design Services.... Task 3: Permitting Services* ...................................... Total Estimated Fees .................. * Does not include any permit fees. $ 23,920.00 $ 20,140.00- $ 58,880.00* • me" con ft ENGINEERS Earth Embankment Design Specifications City of Sebastian Southern Drainage Canal and Waterway System DMC Proposal No. 17-137-01 AUTHORIZATION Page 4 We appreciate your consideration and look forward to working with you on this project. Please contact us if any questions arise or if we may be of service in any way. Respectfully, Dredging & Marine Consultants, LLC Will B. Cornelius II, P.E. Geotechnical Engineer / Manager Attachment: Fee Estimate Breakdown (>OdWV sMO Com~h DMC ENGINEERS • SCIErMSTS Dredging a Marine Consultants DMC ENGINEERS • SCIENTISTS Fee Estimate Breakdown Client: City of Sebastian Project Name: Preliminary Engineering Design and Permitting Services Earth Embankment Design Specifications DMC Project Manager: Will B. Cornelius ll, P.E. Task Descriptions: Task 1: Site Reconnaissance and Review of Background Information Task 2: Preliminary Engineering Design Services Task 3: Permitting Services Date: August 17, 2017 Table A: DMC Labor Rate Task 1 Task 2 Task 3 • Total Hours Cost Hours Principal $ 150.00 8 8 8 24 $ 3,600.00 Senior Civil Engineer $ 140.00 16 24 12 52 $ 7,280.00 Chief Ecologist $ 135.00 16 8 24 48 $ 6,480.00 Geotechnical Engineer/ PM $ 120.00 24 48 24 96 $ 11,520.00 Engineering Professional $ 105.001 24 60 48 132 $ 13,860.00 Environmental Professional $ 95.00 24 20 40 84 $ 7,980.00 CADD Technician $ 75.00 8 40 16 64 $ 4,800.00 Admin $ 55.00 8 24 20 52 $ 2,860.00 Boat (per day) $ 250.00 2 0 0 2 $ 500.00 Total DMC Hours 130 232 192 554 Total DMC Labor Cost $ 14,820.00 $ 23,920.00 $ 20,140.00 $ 58,880.00 Note: Does not include any permit fees.