The pipeline is owned and operated by the Sub-regional Operating Group (SROG) governed by an Intergovernmental Agreement between the cities of Glendale, Mesa, Phoenix, Scottsdale, and Tempe. The City of Phoenix completed the SROG Interceptor Capacity Improvement (SICI) Preliminary Design Report in 2018 for an alignment study and preparing preliminary design documents. The pipeline is operating at its capacity and anticipated future flows necessitate the construction to construct a parallel pipeline to relieve hydraulic conditions in a specific segment of the SRO. The preferred route starts at the intersection of West Lower Buckeye Road and South 47th Avenue, then west to the intersection of West Lower Buckeye Road and South 59th Avenue, and then south to near the intersection of West Broadway Road and South 59th Avenue. The proposed interceptor sewer will connect to the existing 87” stub out on the existing 47th Avenue Junction Structure. Consistent with the existing interceptor and in line with City of Phoenix collection system standards, the new pipeline is assumed to be Reinforced Concrete Pipe with Tlock corrosion protection lining. However, during the design alternate pipe materials may be recommended. SECTION II – SCOPE OF WORK The CMAR will begin with the firm in an agency support role for preconstruction services. The CMAR will assume the risk of delivering the project through a Guaranteed Maximum Price (GMP) contract. The CMAR will be responsible for construction means and methods and will be required to solicit bids from prequalified subcontractors to perform the work using the City’s subcontractor selection process. The CMAR may also compete to self-perform limited amounts of work. The GMP must be submitted in MAG or CSI format, or it will not be accepted. A. Preconstruction phase services by the CMAR may include the following: • provide detailed cost estimating and knowledge of marketplace conditions • provide project planning and scheduling • provide for construction phasing and scheduling that will minimize interruption to City operations • provide alternate systems evaluation and constructability studies • advise City on ways to gain efficiencies in project delivery • provide long-lead procurement studies and initiate procurement of long-lead items • assist in the permitting processes • participate with the City in a process to set a goal for local and SBE participation and implement the local and Small Business Enterprise (SBE) process • protect the City’s sensitivity to quality, safety, and environmental factors • advise City on choosing green building materials.
