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• Manufacturers Experience • Miami -Dade County Experience • Useful Lifespon • Constructability • Material Unit Cost • Installed Unit Cost per foot • Type of Connections to Existing Lines • Hydrogeological Condition As part of the evaluation of pipeline materials, soil corrosivity and cathodic protection must be considered. Soil resistivity readings will establish the level of cathodic protection necessary in order to protect the metal pipe. The evaluation of piping systems will consider both the capital cost of the corrosion protection system as well as its maintenance costs. Stray current testing along with pipeline alignment to assess the potential for interference from other sources of DC current will be performed. Any tunnel installation will consider appropriate method to cathodically protect the steel liner. Develop and Evaluate Alternative Alignments CES will evaluate alternative alignments taking into consideration preliminary design information for each alignment, including construction planning considerations, cost estimates, and implementation schedules. The CES Team will investigate multiple bid packages for the construction work to enhance cost, schedule, and community socio- economic benefits. For example, expediting specialty contracts for subaqueous and /or tunnel crossings may allow for early completion of the overall project schedule. In addition, creating smaller construction and /or supply packages could allow smaller local business entities the ability to participate in the project. Finding a way to foster local participation will typically enhance public acceptance of a project. Surveying, Mapping and Right -of- Way Support If required, CES can obtain digital orthophotographic map and a separate planimetric and topographic contour map (at one -foot intervals). Benchmarks for horizontal and vertical control can also be City of Sunny Isles Beach 46 Continuing Professional Services for Engineering .4. °C No. 1--1)7-02 August 12. 2014 provided. The Team will support the City's right -of -way department in the following specific activities: Estimating construction corridor widths, including the preparation of typical sections showing trench widths, temporary stockpile locations, construction equipment dimensions and operating criteria, temporary traffic control measures, and clearances between the various construction zones necessary to afford safe working conditions. • Identifying requirements for permanent access to the pipeline. • Using Assessor's Parcel Maps, documenting current land ownership along the alignment. • Preparing Metes and Bounds descriptions of required property for both permanent and temporary easements. Preliminary Geotechnical Investigation A preliminary geotechnical investigation, based on a desk -top literature review supported by field reconnaissance, will be conducted to assist in the establishment of preferred alignment corridors and facility sites. Geotechnical evaluations of soil and rock properties, groundwater, and potential geologic hazards at prospective sites will be summarized. Specific recommendations will be developed to facilitate engineering evaluations of alternative alignments and profiles including special considerations for pipeline trench stability, groundwater, tunneling and rock excavation. Conditions may differ substantially from those described above where pipelines cross developed areas. Local fill, imported material and disturbed formational materials probably are present due to earthwork performed for development. These conditions will be evaluated by a surface reconnaissance and subsurface exploration program during design. Thanks to our in -house materials testing lab, some limited geotechnical activities may be expedited to facilitate early decisions in the design analysis. Value Engineering Review Throughout the design effort, the CES Team will seek the means to provide the C� CU \A4i \�g_ut