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HomeMy WebLinkAboutPW 2017 Storm Damage Repair____________________________________________________________________________________ FOR CITY CLERK ONLY File No.: 4-3-655 Council Meeting: 07/17/2017 Disposition: Resolution 14364 Agenda Item No: 4.g Meeting Date: July 17, 2017 SAN RAFAEL CITY COUNCIL AGENDA REPORT Department: Public Works Prepared by: Bill Guerin, Director of Public Works (KM) City Manager Approval: ____ File No.: 16.11.46 TOPIC: 2017 STORM DAMAGE REPAIR SUBJECT: RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN RAFAEL AUTHORIZING THE CITY MANAGER TO EXECUTE A PROFESSIONAL SERVICES AGREEMENT WITH MILLER PACIFIC ENGINEERING GROUP FOR GEOTECHNICAL INVESTIGATION, SITE ANALYSES AND REPORTS ASSOCIATED WITH THE 2017 STORM DAMAGE SITES IN A TOTAL NOT-TO- EXCEED AMOUNT OF $70,108 RECOMMENDATION: Adopt the resolution. BACKGROUND: In January 2017, the City of San Rafael as well as other communities throughout California experienced a significant storm event and on February 14, 2017, the President declared a major disaster making federal disaster aid available to 34 counties including Marin. From January 3 to January 12, 2017 several ‘slipouts’ (landslides) occurred at the following locations which damaged the public roadway system: Location Description #70 Irwin Street Significant downhill slipout destabilized the roadway #80 Upper Toyon Significant downhill slipout destabilized the roadway #121 Irwin Street Damaged drainage system from significant uphill debris movement #76 D Street Uphill slipout and debris movement that affected the roadway and drainage systems #21 San Pablo Downhill slipout de-stabilizing the roadway. The City submitted the necessary paperwork to request public assistance from Federal Emergency Management Agency (FEMA) to support the repair of the roadways. In order to develop an engineering plan for each of these sites, a geotechnical report is needed which provides key details utilized in the design such as the location of the slide plane, active, passive and bearing loads to name a few. On June 1, 2017, the Department of Public Works sent out a Request for Proposals to 7 geotechnical firms and on June 15, 2017 received one proposal for the preparation of the associated soils reports. SAN RAFAEL CITY COUNCIL AGENDA REPORT / Page: 2 ANALYSIS: The proposal received was evaluated by City staff based on criteria specified in the RFP including, but not limited to; understanding of the work to be done, previous experience with similar projects, qualified personnel, and familiarity with City standards and the local area. Staff recommends Miller Pacific Engineering Group as the qualified consultant for this project. Miller Pacific Engineering Group has submitted a proposal to perform the geotechnical investigation for the 5 sites listed above for an amount not to exceed $70,108.00. PUBLIC OUTREACH: Several properties near the areas stated above have been severely impacted by the storm events of 2017. Public Works Staff has been in contact with these property owners throughout the process. Public Works will continue to coordinate the work with adjacent property owners with the intent to install repair measures before the winter rains arrive. FISCAL IMPACT: The City is pursuing federal and state disaster assistance for the above noted sites and has been working with FEMA to develop the information necessary to ensure reimbursement. Moving forward with the geotechnical engineering portion of the work presents some risk to the City since FEMA has not yet approved the full repair of these sites. The City needs to repair these sites as soon as possible to minimize additional damage to the roadway and the downhill properties. In order to not slow down the repair process staff is recommending funding the repairs from the Gas Tax Fund 206 and then seek reimbursement from Federal and State sources. Staff has discussed the timing approval with our FEMA representatives who have recommended that we proceed with protecting health and safety of our citizens regardless of the FEMA timeline for approval. The Public Assistance program through the FEMA provides for 75% of the cost of recovery from the Federal Government, 18.75% from the State Disaster Assistance Act and requires a local share of 6.25%. Public Works staff is working closely with FEMA representatives to develop the information necessary to seek funding in order to repair the noted permanent restoration sites. Based on preliminary estimates , the cost breakdown shown below represents the estimated expenses and the funds staff is seeking through Federal and State sources: ESTIMATED EXPENSES Location Preliminary Estimate Miller Pacific Contract 70 Irwin $700,000 $23,032 80 Upper Toyon $200,000 $14,022 121 Irwin $50,000 $10,516 76 D Street $400,000 $14,022 21 San Pablo $200,000 $10,516 Total $1,550,000 $70,108 The final cost of each project site is not known at this time. The table below shows estimated revenue from the federal and state disaster assistance program. There is approximately $96,880 needed in local funding to support these projects. Since these projects relate to the City’s roadway network, staff recommends supporting these projects with Gas Tax, fund 206. SAN RAFAEL CITY COUNCIL AGENDA REPORT / Page: 3 FUNDING SOURCES Project Funding Sources Allocation Federal Share (75%) $1,162,500 State Share (18.75%) $290,630 Local Share (6.25%) $96,880 Potential Total Available Funds $1,550,000 OPTIONS: 1. Accept a proposal from Miller Pacific Engineering Group and adopt the resolution authorizing the City Manager to sign a professional services agreement with Miller Pacific Engineering Group in an amount not to exceed $70,108. 2. Do not accept the proposal from Miller Pacific Engineer Group. This option may delay construction on these projects and jeopardize Federal and State reimbursement of repair costs. 3. Do not accept the proposal from Miller Pacific Engineering Group and provide further direction to staff. RECOMMEDED ACTION: Adopt the resolution. ATTACHMENTS: 1. Resolution. With Exhibit 1-Agreement for Professional Services 2. Exhibit A to Agreement for Professional Services– Proposal RESOLUTION NO. 14364 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN RAFAEL AUTHORIZING THE CITY MANAGER TO EXECUTE A PROFESSIONAL SERVICES AGREEMENT WITH MILLER PACIFIC ENGINEERING GROUP FOR GEOTECHNICAL INVESTIGATION, SITE ANALYSES, AND REPORTS ASSOCIATED WITH THE 2017 STORM DAMAGE SITES IN A TOTAL NOT-TO-EXCEED AMOUNT OF $70,108 ______________________________________________________________________________ WHEREAS, in January 2017 the City of San Rafael as well as other communities throughout the state of California experienced a significant storm event; and WHEREAS, on February 14, 2017 the President declared a major disaster making federal disaster aid available to 34 counties including Marin and the Cities within Marin; and WHEREAS, from January 3, 2017 to January 12, 2017 several downhill slides occurred at five locations within San Rafael; and WHEREAS, geotechnical investigations of these sites are needed to develop engineering data associated with the soil condition to support the design of the repairs at these five locations; and WHEREAS, on June 1, 2017 the Department of Public Works sent out a request for proposals to 7 geotechnical firms and on June 15, 2017, received one proposal for preparing soils reports for each of the five storm damage sites; and WHEREAS, the cost associated with preparation of these reports is partially reimbursable from the federal government, and State of California disaster assistance program; and WHEREAS, staff has reviewed the proposal from Miller Pacific Engineering Group and found it to be complete and within industry standards; NOW, THEREFORE, BE IT RESOLVED that the Council of the City of San Rafael hereby approves and authorizes the City Manager to execute a Professional Services Agreement between Miller Pacific Engineering Group and the City, in the form attached hereto as Exhibit “1” and incorporated herein by reference, subject to final approval as to form by the City Attorney, in an amount not to exceed $70,108. WHEREAS, funds in the total amount of $70,108 will be appropriated from the Gas Tax Fund (#206), BE IT FURTHER RESOLVED that the Director of Public Works is hereby authorized to take any and all such actions and make changes as may be necessary to accomplish the purpose of this resolution. I, ESTHER C. BEIRNE, Clerk of the City of San Rafael, hereby certify that the foregoing resolution was duly and regularly introduced and adopted at a regular meeting of the Council of said City on the 17th day of July 2017, by the following vote, to wit: AYES: COUNCILMEMBERS: Bushey, Colin, Gamblin, McCullough & Mayor Phillips NOES: COUNCILMEMBERS: None ABSENT: COUNCILMEMBERS: None ESTHER C. BEIRNE, City Clerk File No.: 16.11.46     PROPOSAL FOR THE Geotechnical Investigation, Site Analyses and Reports 2017 Storm Damage San Rafael, California City of San Rafael Department of Public Works 111 Morphew Street San Rafael, California 94901 June 15, 2017     Proposal for Geotechnical Investigation, Site Analyses and Reports Page 1  2017 Storm Damage Sites  San Rafael, CA       June 15, 2017 City of San Rafael Department of Public Works 111 Morphew Street San Rafael, California 94901 Attn: Mr. Kevin McGowen, P.E. Re: Executive Summary Proposal for Geotechnical Investigation and Analyses 2017 Storm Damage Sites San Rafael, California We are pleased to have the opportunity to submit our proposal to provide geologic and geotechnical engineering services for stabilization of five sites in San Rafael that were damaged during strong 2017 winter storms. As a local Marin County firm, the successful completion of this project is important to maintain our reputation in the community and professional relationships with the City of San Rafael. Having completed hundreds of projects in the San Rafael area, we are familiar with the site conditions in the vicinity of the project site and with the nuances of working within Marin County. We have previously worked with City of San Rafael on over 100 projects many of which relate to slope stabilization. Miller Pacific Engineering Group would perform the work from our Novato office. The attached proposal will demonstrate our qualifications to perform the work, summarize our proposed scope of services, and provide our fee estimate. We welcome discussions with the City to refine the scope and fee estimate as needed to meet the City’s goals and budgets. The following individual has the authority to negotiate and contractually bind Miller Pacific Engineering Group. We appreciate the opportunity to work with you on this exciting and important project. Sincerely, Scott Stephens, President Geotechnical Engineer No. 2398 (Expires 6/30/19) Proposal for Geotechnical Investigation, Site Analyses and Reports Page 2  2017 Storm Damage Sites  San Rafael, CA       1.0 INTRODUCTION We are pleased to respond to the City of San Rafael’s (City) request for proposal to perform geotechnical investigations to be used in the stabilization of five sites damaged during the 2017 winter storms. The sites requiring investigation include; 70 Irwin Street, 80 Upper Toyon, 121 Irwin Street, 76 D Street and 21 San Pablo in San Rafael, California. We have previously inspected the sites and provided geotechnical consultation for emergency “temporary” stabilization. The projects vary from relatively shallow smaller sloughs to moderately sized landslides 1.1 Project Objectives and Key Issues We have reviewed the materials in the Request for Proposal (RFP) and understand the project objective is to provide geotechnical investigation reports for use in designing and constructing long-term slope stabilization at the various project sites. The following is a brief summary of key issues pertaining to this project:  Evaluate the geologic and geotechnical site conditions (i.e., subsurface geology, groundwater, slope stability, settlement, and others) in order to develop alternative repair concepts and provide geotechnical design criteria for use in the engineering and analyses of the repairs.  Geotechnical exploration using equipment suitable for the site conditions and laboratory testing to determine the subsurface conditions and engineering properties of the on-site soil and bedrock. This data will be used to assess reuse for slope stabilization options.  Evaluation of commonly considered geologic and geotechnical hazards and mitigation measures consistent with the geology, soils, and seismicity section of California Environmental Quality Act (CEQA) 2.0 SCOPE OF WORK This section outlines our technical approach for key elements of the project and is organized by the tasks needed to complete the investigations as identified in the RFP. 2.1 Project Management and Coordination: Miller Pacific will attend project meetings or conferences as requested by the City for project updates and at select decision points. We will coordinate the work of subconsultants as needed. Per the RFP, we have planned for three meetings or progress phone calls with City staff. These meetings will provide an opportunity to discuss ongoing work, present findings, and solicit feedback. 2.2 Review Available Documents, Site Inspections and Exploration Plan: We will review available previous studies, topographic plans, our in-house materials, and other data relevant to the geotechnical investigation. The existing data will be complied and organized. We will perform site inspections to observe existing conditions. The site inspections shall include visual confirmation of existing structures and utilities, evaluation of access for exploration equipment, and Proposal for Geotechnical Investigation, Site Analyses and Reports Page 3  2017 Storm Damage Sites  San Rafael, CA       marking potential exploration locations for Underground Service Alert (USA) notification and utility clearance. The exploration locations will be adjusted to the extent possible to reduce site impacts. Deliverable: Site exploration plans showing proposed exploration locations, exploration types, depths, sample method and backfilling method. The subsurface exploration work plan will be issued as a draft. We will meet with the City to discuss the draft plan and incorporate any comments into a final plan. 2.3 Geotechnical Exploration and Testing: Following the review and evaluation of existing data, Miller Pacific Engineering Group will perform geotechnical exploration and laboratory testing that will include the following: 2.3.1 Exploration Permits, and USA Miller Pacific will obtain and pay for permits (encroachment and Marin County Environmental Health) necessary to perform the geotechnical explorations. We expect the City will obtain any required environmental permits, right of entry, cultural permits/clearances, or access permits. Miller Pacific will be responsible for contacting Underground Service Alert (USA) to locate utilities, and coordinating with utilities companies as needed to perform subsurface exploration for the project. Deliverable: Copies of all required drilling permits. 2.3.2 Geotechnical Exploration Miller Pacific will coordinate and oversee the approved field exploration in accordance with the standard of practice. All soil classification, sampling, and logging shall be performed in accordance with ASTM 2488 methods by geologists or engineers under supervision of MPEG’s Certified Engineering Geologist and California Geotechnical Engineer. We estimate two to three exploratory borings will be performed at each site to log subsurface conditions and obtain samples for laboratory testing. A combination of track and portable drill equipment will be used. Samples will be collected with the Modified California split spoon sampler and Standard Penetration test sampler, as appropriate for the soil types being samples. The depth of exploration is estimated to range from about 10 feet to 20 feet below existing grade. Soil cutting will be used to backfill boreholes or cuttings will be spread on-site if bore holes require grouting. 2.3.4 Laboratory Testing Geotechnical laboratory testing will be performed on select soil samples collected during the subsurface exploration program in order to aid in soil classification and development of engineering parameters for levee evaluation and design. The laboratory testing will include in situ moisture and density, grain-size distribution, Atterberg limits, corrosion, and unconfined compression strength tests. Deliverable: The results of the subsurface exploration and laboratory testing will be summarized in subsurface exploration appendices to be attached to the geotechnical reports. These appendices will include soil and rock classification charts, boring logs, and laboratory test results. Proposal for Geotechnical Investigation, Site Analyses and Reports Page 4  2017 Storm Damage Sites  San Rafael, CA       2.4 Geotechnical Analyses and Report: MPEG will analyze the data collected during the field exploration and laboratory testing program and perform analysis appropriate for the proposed project. The analyses are expected to include the following: 2.4.1 Geologic Hazards Evaluation We will evaluate geologic and geotechnical hazards commonly considered as part of the California Environmental Quality Act (CEQA) process. A full environmental review and impact report is beyond the currently proposed scope of services. We will help coordinate environmental review and documentation if required. 2.4.2 Geotechnical Analyses Engineering analyses of slope stability will be performed. These analyses may include static and pseudo- static (seismic) stability analyses using SLIDE (version 7.009) software that includes:  Geologic cross-section of the landslide and underlying soil and bedrock conditions. Estimate of engineering properties of the soil for use in the slope stability model.  Conduct two-dimensional static and pseudo-static slope stability analyses to estimate the improvement in factor of safety of different stabilization options.  Geotechnical analyses to develop recommendations and criteria (i.e., site grading, subsurface drainage, active pressures, allowable passive pressure, bearing capacities, tie-back friction, etc.) for design of the slope stabilization repairs. 2.4.3 Geotechnical Report Miller Pacific will prepare a Geotechnical Report for each site that provides interpretation of subsurface conditions based on information collected during exploration. We will summarize geologic hazards, geotechnical analyses procedures/ results, and provide geotechnical recommendations for the project. The report will include geotechnical tables, recommendations, design criteria, and figures summarizing the analyses outlined above. The report will also contain at least two alternatives for slope stabilization for each site and discussion of possible constructability issues. Deliverable: Draft and final geotechnical reports for each project site. MPEG will submit a draft report for City review. A meeting/teleconference with the City will be held to discuss any comments or questions. Final reports will be submitted once all comments have been adequately addressed, and will be signed by a Geotechnical Engineer (GE) with current license in the State of California. 2.5 Geotechnical Consultation and Plan Review: Following issuance of our geotechnical reports, we will be available to consult with the project team to respond to requests for information or answer any geotechnical questions that may arise during project design development. We should review the plans as they near completion in order to determine whether the intent of our geotechnical recommendations has been suitably incorporated. Proposal for Geotechnical Investigation, Site Analyses and Reports Page 5  2017 Storm Damage Sites  San Rafael, CA       Deliverable: Geotechnical plan review and letter providing geotechnical comments, or indicating plans are in conformance with intent of the geotechnical design. 2.6 Geotechnical Construction Support: As Geotechnical Engineer of Record for the project, we will respond to requests for information and review submittals as they relate to the geotechnical portions of the project. We would attend a pre- construction meeting and make intermittent site visits to confirm geotechnical conditions are as anticipated, or make recommended field modification if needed. Although not specifically discussed in the RFP, geotechnical inspection and testing of; site excavation, subsurface drainage, structure fill compaction, pier drilling/foundation excavations, concrete placement compressive strength testing, tieback load testing, and roadway baserock/asphalt compaction, will likely be required for complete geotechnical sign-off. The scope of this work will need to be developed once repair plans have been prepared. Deliverable: Geotechnical letter summarizing the results of our construction services and providing our opinion regarding the Contractor’s compliance with the project plans and specifications. 3.0 PROJECT SCHEDULE The anticipated project schedule following notice to proceed is summarized below. If the scope of the project is altered, we can revise and update the schedule to meet project milestones. Task 1: Subsurface Exploration Plan Two weeks Task 2: USA marking and permits Two weeks Task 3: Laboratory Testing Two weeks Task 3: Subsurface Exploration Two weeks Task 4: Engineering Analyses One week Task 5: Draft Reports Two weeks Task 6: Final Reports One week Most of the tasks need to occur sequentially, although some tasks may overlap a bit. Total estimated time to prepare and issue final reports is 10 to 12 weeks. 4.0 STATEMENT OF QUALIFICATIONS Specific Qualifications for this Project As a firm with over 25 years of experience in Marin County, Miller Pacific Engineering Group (MPEG) believe we offer a unique background and knowledge that can be applied to this project to meet the City’s objectives. MPEG has worked on numerous slope stabilization projects within Marin County and has applied innovation, creativity, and solutions oriented results to our clients’ needs. The following is a summary of our qualifications for this project.  The successful completion of the project is important to us in maintaining our professional relationships with the City of San Rafael and our reputation in the community. Our Novato location enables us to effectively plan and implement the investigation and preparation of geotechnical reports. Proposal for Geotechnical Investigation, Site Analyses and Reports Page 6  2017 Storm Damage Sites  San Rafael, CA        We have completed hundreds project within the San Rafael area of Marin County. We are very familiar with the local site conditions and nuances of working within Marin County.  Cost effective investigation and design. We are a local, small to medium sized firm that can easily adapt to changes in the design and thinking “outside the box”. 4.1 CONSULTANT TEAM Miller Pacific will provide a majority of the requested services in-house. We will utilize subconsultants for exploratory drilling and possibly specialized laboratory testing. Roles, responsibilities and descriptions are summarized below. Consultant Roles/Responsibilities Miller Pacific Engineering Group Project Management, Technical Coordination Evaluation of Subsurface Conditions Laboratory Testing Geologic and Geotechnical Analyses Geologic and Geotechnical Report Miller Pacific Engineering Group Miller Pacific Engineering Group (MPEG) provides clients with special services in the Geosciences by drawing on forty years of professional expertise in Geology, Civil and Geotechnical Engineering. The majority of our projects are in the Northern San Francisco Bay Area. With a home office in Novato and additional offices in Napa and Petaluma (including soil laboratory), the firm serves numerous public agencies and private clients. Their services span the range of Geotechnical Planning, Geological Hazards Analysis, Geotechnical Exploration and Testing, Foundation Engineering, Construction Monitoring, Geo-Civil Engineering and Distressed Property Evaluation. The firm’s resource library provides a wealth of background information on local geologic and soil conditions, and their project records document the constructability of their various geotechnical designs. MPEG is an employee- owned California Corporation and registered as a California Small Business (SBE) and Micro-Business. MPEG provides a variety of geotechnical and geologic services including: Geotechnical Engineering: Feasibility Studies, Geotechnical Investigations, Earthquake Engineering, Site Grading Criteria, Stability and Settlement Analyses, Foundation Design, Distressed Property Evaluation, Forensic Studies, and Expert Witness. Engineering Geology: Geologic Hazard Investigation, Fault and Seismicity Studies, Environmental Impact Assessment, Ground Water Studies, Geologic Resource Evaluation, Quarry Closure Reports. Geo/Civil Engineering: Landslide Mitigation Design, Embankment Design, Foundation Rehabilitation, Retaining Structures, Bridges, Shoreline Protection, Earth Dam Design, Design Plans and Specifications. Construction Monitoring and Testing: QA/QC geotechnical inspection and testing including site grading, foundations construction, subsurface drainage, pavement sections and concrete. More information is available at www.millerpac.com Proposal for Geotechnical Investigation, Site Analyses and Reports Page 7  2017 Storm Damage Sites  San Rafael, CA  Drilling Subconsultants Miller Pacific will utilize various drilling subconsultants based on site specific conditions and access. A combination of truck or track mounted, as well as, portable drilling equipment will be required for subsurface exploration. We would likely utilize DeNovo Drilling for the track and portable equipment, and Pearson drilling for truck mounted drilling. If required, specialized outside laboratory testing would likely be performed by Cooper Testing Lab. 4.2 Key Personnel The following provides an abbreviated summary of the key personnel for this project. The summary identifies the qualifications of the individual and the role they will have on the project. Full resumes are available upon request. Scott Stephens, Principal, Civil and Geotechnical Engineer (MPEG) – Scott is a California registered Civil and Geotechnical Engineer and will be the project manager for the geotechnical investigation. He has more than 25 years of experience including over 600 Geotechnical and Geo-Civil projects in Marin City that have addressed site grading, consolidation settlement and slope stability. Geotechnical services have included inspection, exploration, monitoring, stability analyses, expert testimony, repair plans and construction inspection, testing and project management. He serves as a Peer Reviewer for several local governmental agencies. He has conducted forensic investigations and has provided expert testimony on geotechnical issues including slope instability, retaining wall failure, foundation distress and groundwater seepage. Scott has provided geologic and geotechnical services including investigation, reports, repair plans and construction inspection for numerous slope stabilization projects. Project Role: Will be the overall project manager and primary contact for the City. Will direct work of the consultant team, supervise all geotechnical technical work and perform QA/QC final review to ensure the accuracy of final work products and that the City’s needs are met. Mike Jewett, Certified Engineering Geologist, Professional Geologist (MPEG) – Mike Jewett serves as Project Geologist on a variety of Geotechnical and Geo-Civil Projects. His experience is concentrated in the San Francisco Bay Area, primarily within Marin, Napa, Contra Costa, and San Francisco Counties. Mike has conducted dozens of geologic site evaluations for a variety of projects, including distressed properties, slope failures and pre-development feasibility studies. He has implemented and managed subsurface exploration and laboratory testing programs for numerous geologic and geotechnical investigations utilizing a wide array of specialized techniques and equipment, including auger, rotary- wash, and continuous core drilling, cone penetrometer test (CPT) explorations, slope inclinometer and monitoring well construction, installation of in-situ instrumentation, downhole geophysical logging, and in- situ hydraulic conductivity testing. He has performed geologic field mapping and complex geologic hazard evaluations for projects with acute seismic, liquefaction, settlement, coastal bluff erosion, slope- stability and groundwater concerns. Project Role: Will be the project geologist and responsible for the project subsurface exploration and geologic hazards evaluation. Ben Pappas, Senior Engineer, Civil and Geotechnical Engineer (MPEG) – Ben Pappas serves as a Senior Engineer on a variety of Geotechnical and Geo-Civil Projects and is a registered Civil and Geotechnical Engineer in the State of California. His experience is concentrated in the North and East Bay area, particularly Marin, Sonoma and Alameda Counties. Ben has extensive experience working with local City and School Districts and Colleges to improve their facilities. The projects Ben has been involved with required geotechnical services to comply with the current CBC and Division of State Proposal for Geotechnical Investigation, Site Analyses and Reports Page 8  2017 Storm Damage Sites  San Rafael, CA  Architects (DSA) requirements. For his projects, he has provided detailed seismic hazard analysis, liquefaction analysis, calculations for seismically induced settlement, slope stability (for both static and seismic conditions) and settlement analyses. Project Role: Ben will perform technical analyses to evaluate slope stability and develop geotechnical design criteria for the project. 4.3 Reference Projects The following provides an abbreviated summary of a few key projects with features similar to the proposed project. Marin County Public Works Landslide Investigation, Monitoring & Repair Marin County, California Over the past 20-years Miller Pacific has worked for the County of Marin as a sub-consultant on over 60 landslides which damaged County roads, parks and open space areas. Many of the projects involved emergency consultation, geotechnical investigation and preparation of complete design repair plans. We have prepared plans for soldier pile and lagging retaining walls, shotcrete and soil nail walls, tied back CIDH retaining walls, Geobrugg catchment walls, reinforced earth buttresses, and other types of repairs. For most of these projects we also performed construction observation and material testing services, working with County Resident Engineers or Construction Managers. A few of the projects are described below. The Crown Road at Idlewood Road was the large landslide that damaged County roads due to FEMA disaster events. We investigated the site with test borings and inclinometers that were used to determine the depth and rate of landslide movement (up to 45 feet below road grade) and to model geologic condition and perform slope stability analyses. The repair consisted of a 200-foot-long row of 3-foot diameter drilled piers, spaced 7-feet on center, along the edge of the road and a 125-foot-long row of 3- foot diameter drilled piers, spaced 7 feet on center, about 25 to 50 feet uphill from the lower row of piers. Both structures are laterally supported by up to 240 kip tiebacks consisting of double-corrosion protected bundled strands that are up to 110 feet in length. Miller Pacific Engineering Group provide geotechnical consultation, inspection and testing during construction. We are monitoring landslides with slope inclinometers for Marin County where slow, gradual movement has damaged roadways that have been maintained by asphalt concrete overlays. The landslides have all been investigated with test borings converted to inclinometers that extend well into bedrock below the depth of landslide movement. The monitoring is useful in determining the depth, magnitude and rate of slope movement. The monitoring is typically performed twice a year and is combined with site reconnaissance work to check for visual evidence of landslide activity. The County uses this information to determine which landslides are likely candidates for permanent repair and to prioritize the work. The exploration and monitoring data is also utilized for repair concepts, engineering analyses and development of repair plans and specifications. Proposal for Geotechnical Investigation, Site Analyses and Reports Page 9  2017 Storm Damage Sites  San Rafael, CA       MMWD Phoenix Lake Area Landslides Mount Tamalpais Watershed, CA Following heavy winter rains, Marin Municipal Water District engaged Miller Pacific to evaluate 4 landslides that damaged fire roads located within the District’s Mt Tamalpais watershed in the vicinity of Phoenix Lake. Our scope of services included geologic reconnaissance, geotechnical investigation with test borings, development of various stabilization options and preparation of complete repair plans. The sites were stabilized with drilled soldier pile and timber lagging retaining walls with one of the sites utilized tiebacks for increased lateral support. During construction, we observed excavation of landslide debris, soldier pile installation, tieback drilling, installation and load testing. Since 2009, we have monitored a large landslide located immediately downslope from the South Marin Line Fire Road, adjacent to the Bon Tempe Water Treatment Plant. In the late 1960s, the roughly 250- foot wide by 500-foot long landslide undermined part of a waste water recovery pond. In the late 1970s, horizontal drains were installed within the landslide and the pond was underpinned with drilled piers to improved slope stability. However, minor slope movement has continued. Miller Pacific performed a geotechnical evaluation of the landslide which included; review of historic aerial photographs, site reconnaissance of the landslide, and drilling a deep test boring located within the upper middle portion of the landslide. The boring was converted to a slope inclinometer which we continue to monitor to confirm the depth and rate of landslide movement. Woodside Terrace Landslide Fremont, California A large landslide developed on open space directly below and in the back yards of several homes. The subject of major litigation, Mr. Stephens performed a geotechnical forensic investigation and provided expert testimony. Primary causation factors were determined to be weak geologic bedrock layers and groundwater seepage. Following litigation, Mr. Stephens performed analyses to develop a landslide repair plan and provided construction management, inspection and testing. The repair included installation of drilled piers with tie-backs to support the landslide scarp and homes during excavation. The landslide was excavated below the failure plane and an extensive subsurface drainage system was installed to collect and convey groundwater. The landslide area was rebuilt with a reinforced earth buttress to restore conditions.   Proposal for Geotechnical Investigation, Site Analyses and Reports Page 10  2017 Storm Damage Sites  San Rafael, CA       Zone 7 Cope Lake Detention Basin Slope Stabilization Livermore, California Wave erosion along the shoreline, groundwater seepage from an upslope seasonal creek and non-engineered fill on the east slope of Cope Lake led to significant toe erosion and landslides that created over-steepened, unstable slopes and loss of the only vehicular access road around the lake. Miller Pacific conducted a geotechnical investigation to determine the slope instability causation factors and develop a geologic cross-section for use in stability analyses of various slope stability and repair options with rough cost estimates. The preferred stabilization option was a reinforced earth slope with subsurface drainage and erosion resistant facing in the lower slope elevations. Existing concrete and rock debris were utilized to stabilize soft keyway soils and create the rip-rap facing layer. Mr. Stephens worked with Zone 7 on the preferred mitigation by providing stability analyses, development of technical specifications, technical review of the contract document, and geotechnical consultation, inspection and testing during construction. Fair-Anselm Plaza Creek Bank Stabilization San Anselmo, California Fair-Anselm Plaza commercial development was originally constructed to overhang Corte Madera Creek. During high velocity storm water flows, the creek banks were eroding and sloughing which exposed the drilled pier foundation system and was causing the creek bank to encroach on the shallow foundations that support the structures. Miller Pacific conducted a subsurface exploration program, designed a bank stabilization system, and provided construction management and inspection services. Saturated and loose silt, sand and gravel deposits within the creek bed and banks made traditional drilled excavations unstable. We designed a reinforced shotcrete wall that was vertically and laterally supported with helical anchors. The helical anchors were screwed into the ground, eliminating the need for unsupported excavation and significantly reducing soil cuttings. The shotcrete wall was colored and textured to match the natural soils in the surrounding creek banks. Existing on-site rock slope protection was worked around and relocated to the base of the wall for scour protection. Phoenix Lake Dam Geotechnical Sensitivity Analysis Ross, California As part of the Flood Zone 9 Watershed Flood Damage Reduction and Creek Management Study, Miller Pacific has prepared a Preliminary Geotechnical Evaluation Report and a Geotechnical Sensitivity Analysis Report. The purpose of the preliminary studies was to evaluate geologic and geotechnical conditions for potential use of the dam and reservoir as a flood control detention basin. Our preliminary analyses were used to consider possible required remedial measures and conceptual cost estimates for inclusion in a grant application for funding. We reviewed background geotechnical and geologic information including geologic maps, geotechnical reports, exploratory boring logs, laboratory data, topographic mapping, and historic aerial photography. Miller Pacific performed site Proposal for Geotechnical Investigation, Site Analyses and Reports Page 11  2017 Storm Damage Sites  San Rafael, CA       reconnaissance for preliminary evaluation of site geologic conditions. Slope-stability analyses were performed using different assumed strength profiles for the dam. These analyses included static and pseudo-static (seismic) evaluation using ground accelerations consistent with DSOD criteria and for sudden drawdown conditions. Using the slope stability model, we evaluated different conceptual mitigation measures to improve stability and reduce seismic deformations. Potential dam improvements included; reconstruction of the down-stream buttress fill, adding internal drainage, foundation grouting and other ground improvement measures. 5.0 REFERENCES Miller Pacific Engineering Group has previously worked for the City of San Rafael on several different projects. In addition to working with City of San Rafael personnel, other firm references are listed below. Mr. Ernest Klock, Principal Civil Engineer Department of Public Works 3501 Civic Center Drive, Suite 304 San Rafael, CA 94903 Email: eklock@marinCity.org Phone: 415-499-6552 Mr. Drew McIntyre, Chief Engineer North Marin Water City 999 Rush Creek Place Novato, CA 94948 Email: dmcintyre@nmwd.com Phone: 415-897-4133 Mr. Julian Skinner City of Larkspur Public Works Director 400 Magnolia Larkspur, CA 94939 Email: pwdirector@cityoflarkspur.org Phone: 415-927-5020 6.0 AGREEMENT AND INSURANCE COVERAGE Miller Pacific Engineering Group has successfully negotiated agreements with the City of San Rafael for previous geotechnical projects. We currently have an on-call agreement with the City that could be used as the base agreement for this project. We have the insurance coverage required by the proposal. 7.0 COST PROPOSAL The anticipated project budget is attached in the separate sealed envelope. If requested, we may be able to alter the scope of services to meet schedule or budget requirements. Firm Personnel Classification Sr. Geotechnical Engineer (Scott Stephens, GE)Project Engineer (Ben Pappas, GE)Project Geologist (Mike Jewett, CEG)Staff Geologist/EngineerOutside ChargesHourly Rate $240 $195 $160 $100 Project Management and Coordination 1.10 Project Meeting (3) 12 12 $2,880 1.20 Subconsultant Coordination 4 4 $400 Subtotal 4 $3,280 Review Documents, Site Inspections and Exploration Plan 2.10 Compile Existing Data 2 6 8 $1,080 2.20 Site Inspection and field measurements 1 6 7 $840 2.30 USA Markings 12 3 $440 2.40 Exploration Plan 16 7 $840 Subtotal 25 $3,200 Geotechical Exploration & Labortory Testing 3.10 Encroachment and MCEH Permits 1 8 $1,500 9 $2,540 3.20 Secure and Schedule Exploration Equipment 2 2 $200 3.30 Subsurface Exploration 2 32 $9,853 34 $13,533 3.40 Laboratory Testing 2 16 $2,080 18 $4,160 3.50 Prepare Figures/Logs/Graphics 1 16 17 $1,840 3.60 Prepare Exploration and Lab Appendix 1 2 3 $440 Subtotal 83 $22,713 GEOTECHNICAL ANALYSIS AND REPORT 4.10 Geologic Hazards Evaluation 5105 20 $3,300 4.20 Slope-Stability Analyses 5555 20 $3,475 4.30 Geotechnical Evaluation and Analyses 55 5 15 $2,675 4.40 Prepare Figures/Graphics 515 20 $2,700 4.50 DRAFT Geotechnical Reports (5 sites)51055 25 $4,450 4.60 Project Conference / Response to Comments 4 4 $960 4.70 FINAL Geotechnical Reports (5 sites)2555 17 $2,755 Subtotal 121 $20,315 Geotechnical Consultation and Plan Review 5.10 Response to Geotechnical Design Questions 10 5 5 5 25 $4,675 5.20 Plan Review and Letter 5 5 10 20 $3,175 Subtotal 45 $7,850 Geotechnical Construction Support 6.10 RFIs and Submittal Reviews 210 10 22 $3,430 6.20 Pre-Con Meeting and Site Inspections 830 38 $4,920 6.30 Construction inpection letters (5 sites)10 20 30 $4,400 Subtotal 90 $12,750 90 45 30 215 Outside $21,600 $8,775 $4,800 $21,500 $13,433 All 5 Authorized Individual Authorization $21,032 $23,136 $14,022 $15,424 $10,516 $11,568 $14,022 $15,424 $10,516 $11,568 80 Upeer Toyon 121 Irwin Street 76 D Street 21 San Pablo Cost Breakdown per Individual Site 298 $70,108 70 Irwin Street TABLE 1: SAN RAFAEL 2017 STORM DAMAGE COST ESTIMATE Labor Hours by Sub-Task TOTAL CHARGESTOTAL HOURSWork ItemLABOR TOTALS (HOURS BY PERSONNEL) LABOR TOTALS (CHARGES BY PERSONNEL)TaskMiller Pacific Engineering Group PROJECT TOTAL STAFF REPORT APPROVAL ROUTING SLIP Staff Report Author: Kevin McGowan Date of Meeting: July 17, 2017 Department: Public Works Topic: 2017 Storm Damage Repair Subject: RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN RAFAEL AUTHORIZING THE CITY MANAGER TO EXECUTE A PROFESSIONAL SERVICES AGREEMENT WITH MILLER PACIFC ENGINEERING GROUP FOR GEOTECHNICAL INVESTIGATION, SITE ANALYSES AND REPORTS ASSOCIATED WITH THE 2017 STORM DAMAGE SITES IN A TOTAL NOT-TO-EXCEED AMOUNT OF $70,108. Type: (check all that apply) ☒ Consent Calendar ☐ Public Hearing ☐ Discussion Item ☐ Resolution ☐ Ordinance ☐ Professional Services Agreement ☐ Informational Report *If PSA, City Attorney approval is required prior to start of staff report approval process ☐ Was this agenda item publicly noticed? Due Date Responsibility Description Completed Date Initial / Comment PRELIMINARY REVIEW FRI, 6/30 Author Submit draft report to Director 6/30/2017 ☒ Prepared by KM MON, 7/3 Director Assistant City Manager Submit draft report to ACM Readiness review 6/30/2017 Click here to enter a date. ☒ BG ☒ WED, 7/5 City Attorney Finance Preliminary legal and financial impact review 7/5/2017 7/5/2017 ☒ LAG ☒ Vanb CONTENT REVIEW FRI, 7/7 Assistant City Manager Author Content review Revisions Click here to enter a date. Click here to enter a date. ☒ ☒ FINAL REVIEW MON, 7/10 City Attorney Finance Author Final legal review Final financial review Revisions / accept changes 7/12/2017 7/10/2017 Click here to enter a date. ☒ LAG ☒ Van ☒ KM TUES, 7/11 City Manager Final review and approval Click here to enter a date. ☒