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ISince the probable earthwork area could be more than 1 acre, the project may require the application to the FDEP for the Generic Permit for Stormwater Discharge, including the Ipreparation of Stormwater Management Pollution Prevention Plan for the construction stage. Establish Design Criteria/Evaluate Materials 1 We will prepare a summary of relevant technical criteria for the design and materials selection. Through material evaluations for many large diameter pipeline projects, the CES Team has developed a strong technical knowledge of the advantages and disadvantages of varying I pipeline materials. Our experience with pipeline projects has fostered an understanding of the key elements in selecting the best pipeline material and encouraging competition for cost benefits. We have developed a list of the 18 most important criterions in making a decision on Ipipeline material as shown below. These criterions will be used to ensure that the best pipeline material is selected for the project. I • Joint Flexibility • Available Manufacturers • Laying Length • Manufacturers Experience • Weight Per Length • Miami-Dade County Experience I • Joint Restraint • Useful Lifespan • Cathodic Protection • ▪ Constructability • Pipe Lining • Material Unit Cost I • Roughness Coefficien •t • Anticipated Pressure Installed Unit Cost per foot ▪ Type of Connections to Existing • Pressure Class Lines 1 • Hydrogeological Condition As pad of the evaluation of pipeline materials, soil corrosivity and cathodic protection must be O 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. I 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. IDevelop and Evaluate Alternative Alignments CES will evaluate alternative alignments taking into !1 .- 'V consideration preliminary design information for f � `# .• �• .� , ;',1 it's, 1 each alignment, including construction planning k Fi ' '" , Y.-1 -rC considerations, cost estimates, and �t v , -•.' . . �r�; implementation schedules. The CES Team will •' , r'ary' ` t" ' /a " , I investigate multiple bid packages for the / c Y ° ` ` , construction work to enhance cost, schedule, and ,. _-.. community socio-economic benefits. For example, _ _ ........-w4_11 `-"�' - `' '-.tsr , ,,, expediting specialty contracts for subaqueous \ •K: rte'.. ..- �,t) ,.; and/or tunnel crossings may allow for early • 4. \ h -'-Ar' ! `¢ e1 completion of the overall project schedule. In 4.; t° � •'t`^., 1- of t----, addition, creatingsmaller construction and/or v ` ,--tr.• r\ 1- . - I supply packages could allow smaller local business -, \7.-- t 4 A.: entities the ability to participate in the project. . ` fit C-` 11 . ' ^ ' ' Findinga wayto foster local ' participation will Itypically enhance public acceptance of a project. I BOW of Sunny Isles Beach Continuing Professional Architectural&Engineering Services RFO 12-04-02 I 26