Common use of Preliminary Engineering Clause in Contracts

Preliminary Engineering. Contractor will conduct technical studies necessary to design proposed new bridge and approach roadway. The County will provide all necessary land survey for the project. The following technical studies and memoranda are anticipated to be sufficient to address the design requirements. The contractor will complete the following: • Perform a differential level loop. The level loop will begin at an NGS first order benchmark and run NAVD88 elevations through various benchmarks. The level loop will close back on another NGS first order benchmark to confirm accurate elevations. • Establish a new benchmark near the current project benchmark. • Conduct a review of available data. • Conduct a field reconnaissance to assess the existing conditions. • Perform hydrologic analyses. • Perform a hydraulic analysis for the existing and proposed condition. • Prepare a Location Hydraulic Study Memorandum including the Caltrans standard Summary of Floodplain Encroachment Form. • Perform a creek geomorphology and a scour analysis. • Prepare a Water Quality Study Memo. • Prepare a Bridge Design Hydraulic Study Report. • Prepare a Preliminary Foundation Memorandum based on available subsurface data, as-built drawings, published geologic mapping and seismicity data, aerial photographs, preliminary project data and a site review. No subsurface exploration will be completed for the preparation of the Preliminary Foundation Memorandum. • Complete two deep foundation borings at the site, extended to a depth of approximately 50 feet below channel bottom, and two shallow boring, all within the existing roadway shoulders within County right of way. All permit application fees required by regulatory and resource agencies will be paid by the County. Drilling will be completed with a truck-mounted drill rig using auger and/or mud-rotary drilling methods and will not require diamond-bit core in hard rock. • Prepare a Foundation Report that summarizes the subsurface exploration, field and laboratory soils testing, “Log of Test Borings” drawing, seismic design criteria, liquefaction evaluation, corrosion evaluation, foundation recommendations, approach earthwork recommendations with pavement sections, and construction considerations. • Prepare preliminary (30%) roadway plans sufficient to identify the proposed roadway layout and profile, typical roadway sections, approach roadway limits and preliminary right of way impacts. A conceptual cost estimate will be prepared along with the roadway plans. • Prepare a Structure Type Selection Report.

Preliminary Engineering. Contractor will conduct technical studies necessary to design proposed new bridge and approach roadway. The County will provide all necessary land survey for the project. The following technical studies and memoranda are anticipated to be sufficient to address the design requirements. The contractor will complete the following: • Perform a differential level looptopographic survey of the surface evidence at the bridge and roadway, within 800 feet in either direction from the bridge, and creek cross sections. The level loop All permits or rights of entry necessary to complete the surveying or vegetative clearing will begin at an NGS first order benchmark and run NAVD88 elevations through various benchmarksbe provided by the County. The level loop Extensive brushing of vegetation will close back on another NGS first order benchmark be completed to confirm accurate elevationsfacilitate the survey. • Establish a new benchmark near the current project benchmarkPrepare base map which will include edge of paving, top of bank, toe of slope, fences, power poles, utility vaults, bridge features, property lines and easements. • Conduct a review of available data. • Conduct a field reconnaissance to assess the existing conditions. • Coordinate with FEMA for the background information of their published design peak discharges and coordinate with the County to confirm the design discharges. • Perform hydrologic analyses. • Perform a hydraulic analysis for the existing and proposed condition. • Prepare a Location Hydraulic Study Memorandum including the Caltrans standard Summary of Floodplain Encroachment Form. • Perform a creek geomorphology and a scour analysis. • Prepare a Water Quality Study Memo. • Prepare a Bridge Design Hydraulic Study Report. • Prepare a Preliminary Foundation Memorandum based on available subsurface data, as-built drawings, published geologic mapping and seismicity data, aerial photographs, preliminary project data and a site review. No subsurface exploration will be completed for the preparation of the Preliminary Foundation Memorandum. • Complete two deep foundation borings at the site, extended to a depth of approximately 50 feet below channel bottom, and two one shallow boring, all within the existing roadway shoulders within County right of way. All permit application fees required by regulatory and resource agencies will be paid by the County. Drilling will be completed with a truck-mounted drill rig using auger and/or mud-rotary drilling methods and will not require diamond-bit core in hard rock. • Prepare a Foundation Report that summarizes the subsurface exploration, field and laboratory soils testing, “Log of Test Borings” drawing, seismic design criteria, liquefaction evaluation, corrosion evaluation, foundation recommendations, approach earthwork recommendations with pavement sections, and construction considerations. • Prepare preliminary (30%) roadway plans sufficient to identify the proposed roadway layout and profile, typical roadway sections, approach roadway limits and preliminary right of way impacts. A conceptual cost estimate will be prepared along with the roadway plans. • Prepare a Structure Type Selection Report.. ENVIRONMENTAL CLEARANCE • Draft and Final Environmental Technical Studies as listed above • Administrative Draft IS/MND • Public Review Draft IS/MND • Final IS/MND PRELIMINARY ENGINEERING • Draft and Final Bridge Location Hydraulic Study Memo • Draft and Final Bridge Design Hydraulic Study Report • Draft and Final Water Quality Study Technical Memo • Preliminary Foundation Memorandum • Draft and Final Foundation Report • Structure Type Selection Report • 30% Roadway Plans PUBLIC OUTREACH. Contractor will plan, coordinate, and facilitate community workshops as necessary for the subject bridge project. The following items are anticipated to be sufficient to address the public outreach needs for the project. The Contractor will complete the following: • Prepare a community specific communications plan which will outline the outreach objectives, key stakeholder groups, communication tasks and timeline, as well as important messages. • Plan and facilitate up to two community workshops to communicate the goals of the bridge replacement project, the timing and impacts of the improvements, as well as environmental, safety and traffic benefits; and will develop the presentation material for the meetings. • Plan and facilitate up to two additional focused group meetings with the Point ▇▇▇▇▇ Station and Inverness Communities to further communicate the goals of the project and discuss community concerns. • Create one overview fact sheet to provide details about the project, including the general purpose, timeline, project impacts and benefits, as well as ways to get more information. • Create one project survey form to determine the community’s areas of greatest concern and receive general feedback on what the community would like to see incorporated into the project. • A direct mailing to all residents within the bridge/detour area explaining project objectives and impacts, as well as providing contact information for all inquiries and concerns will be sent. • Prepare presentation materials and hard costs associate with mailings for community workshops. It is assumed that there will be three mailings for the project, budgeted at $600/mailing. Up to two presentation boards will be prepared for each of the public meetings and a budgeted amount of $150/venue reservation, assuming two reservations, has been included. 60% DESIGN. Contractor will prepare engineering plans for the roadway approaches and bridge. Contractor will complete the following: • Prepare 60% Roadway and Structure Design Plans and Estimate. UTILITY COORDINATION. Contractor will coordinate with public and private suppliers of natural gas, power, water, storm drain, sewer and broadband as appropriate at the bridge site. Contractor will complete the following tasks. • Depict utilities on base topographic map • Prepare utility conflict maps and assist local service providers in locating areas for utility relocation • Circulate 60% and 95% plans, along with any associated legal descriptions, to utility companies to verify plan have incorporated their relocation needs • Prepare Report of Investigations, Notice to Owners and Utility Agreements as necessary PUBLIC OUTREACH • Communication Plan • Community Workshop Materials – meeting notification (electronic and local mailing), agenda, comment cards, sign-in sheets, and presentation boards. • Fact Sheet • Survey 60% DESIGN • Plans (60%) • Estimate (60%) UTILITY COORDINATION • Right of Way Certification and Data Sheets relating to utility relocations • Report of Investigation • Utility Conflict Maps • Notice to Owners • Utility Agreements

Preliminary Engineering. Contractor will conduct technical studies necessary to design proposed new bridge and approach roadway. The County will provide all necessary land survey for the project. The following technical studies and memoranda are anticipated to be sufficient to address the design requirements. The contractor will complete the following: •  Perform a differential level loop. The level loop will begin at an NGS first order benchmark and run NAVD88 elevations through various benchmarks. The level loop will close back on another NGS first order benchmark to confirm accurate elevations. •  Establish a new benchmark near the current project benchmark. •  Conduct a review of available data. •  Conduct a field reconnaissance to assess the existing conditions. •  Perform hydrologic analyses. •  Perform a hydraulic analysis for the existing and proposed condition. •  Prepare a Location Hydraulic Study Memorandum including the Caltrans standard Summary of Floodplain Encroachment Form. •  Perform a creek geomorphology and a scour analysis. •  Prepare a Water Quality Study Memo. •  Prepare a Bridge Design Hydraulic Study Report. •  Prepare a Preliminary Foundation Memorandum based on available subsurface data, as-as- built drawings, published geologic mapping and seismicity data, aerial photographs, preliminary project data and a site review. No subsurface exploration will be completed for the preparation of the Preliminary Foundation Memorandum. •  Complete two deep foundation borings at the site, extended to a depth of approximately 50 feet below channel bottom, and two shallow boring, all within the existing roadway shoulders within County right of way. All permit application fees required by regulatory and resource agencies will be paid by the County. Drilling will be completed with a truck-mounted drill rig using auger and/or mud-rotary drilling methods and will not require diamond-bit core in hard rock. •  Prepare a Foundation Report that summarizes the subsurface exploration, field and laboratory soils testing, “Log of Test Borings” drawing, seismic design criteria, liquefaction evaluation, corrosion evaluation, foundation recommendations, approach earthwork recommendations with pavement sections, and construction considerations. •  Prepare preliminary (30%) roadway plans sufficient to identify the proposed roadway layout and profile, typical roadway sections, approach roadway limits and preliminary right of way impacts. A conceptual cost estimate will be prepared along with the roadway plans. •  Prepare a Structure Type Selection Report.