 
          DOMINION BOULEVARD CORRIDOR STUDY  |  Chesapeake, Virginia
        
        
          112  |  Infrastructure Strategy
        
        
          Infrastructure Strategy  |  113
        
        
          Water System
        
        
          The existing water infrastructure through the Dominion Corridor generally follows the
        
        
          same alignment as the sewer system.  Based on City GIS (geographic information system)
        
        
          information, the majority of the transmission and distribution lines were installed in the
        
        
          2000’s and range in size between 4” – 24”.  The majority of the lines are comprised of
        
        
          ductile iron and PVC pipe with a few lines being comprised of cast iron pipe.  There is
        
        
          approximately 101,000 linear feet of active pipe within the Corridor.  Service is primarily
        
        
          confned to the same areas where sewer service is available.  There is an existing 8” line
        
        
          that serves a City training facility that runs down George Washington Highway and enters
        
        
          the Corridor along Number Ten Lane.  The remainder of the Corridor is served by private
        
        
          well systems, including the Airport.
        
        
          The major transmission mains currently serving the area within the Corridor are located
        
        
          along Dominion Boulevard and Cedar Road and range in size from 16” – 24”.  There is also
        
        
          a 16” and 12” transmission main loop that runs down Grassfeld Parkway from Dominion
        
        
          Boulevard and connects to Cedar Road at the Cahoon Parkway intersection.  A 16”
        
        
          transmission main extends south on Scenic Parkway from Dominion Blvd.
        
        
          
            CORRIDOR PLAN -
          
        
        
          PROGRAM PROJECTIONS
        
        
          
            Sewer System
          
        
        
          Based on the market research study performed by RCLCO, Areas 3, 4, 5 and 6 were
        
        
          determined to be able to support economic growth.
        
        
          Design Workshop provided Woolpert with Program Allocations which included square
        
        
          footage projections for Retail, Office and Industrial space and number of projected units for
        
        
          Residential space.  From these allocations, flows for each Area were generated using the
        
        
          guidelines and requirements set forth in the Regional Technical Standards (RTS).
        
        
          Chesapeake’s existing pump stations were used as a comparison point for projecting
        
        
          approximate pump station size throughout the Corridor.  The largest existing pump station
        
        
          within the Corridor is Pump Station 261, with capacity of 500,000 gallons per day (GPD).
        
        
          For this report, it was assumed that the flows produced by the projected development
        
        
          throughout the Corridor would be handled with new infrastructure and new pump stations.
        
        
          However, existing pump stations have some capacity for increased flow.  If pump stations
        
        
          similar in size to existing Pump Station 261 are built, then the flows generated by the
        
        
          Program Allocations may require construction of fve new pump stations in the targeted
        
        
          development areas.
        
        
          Through several internal discussions and close coordination with HRSD personnel,
        
        
          Chesapeake Utilities and HRSD have agreed upon the installation of a new HRSD Interceptor
        
        
          Force Main through the Dominion Corridor.  The conceptual alignment of the Interceptor
        
        
          Force Main will follow a primary right-of-way through the corridor.  The future Interceptor
        
        
          Force Main will connect to existing HRSD infrastructure at Cedar Road on the north western
        
        
          side of the Corridor and on Battlefeld Boulevard, east of the Corridor.  The connection east
        
        
          of the corridor will be made at either the Hillwell Road or Hillcrest Parkway intersection.
        
        
          The future alignment through the Corridor will depend on the magnitude of development
        
        
          and need for easements or right-of-way acquisition.  Alignment options can be seen
        
        
          on fgure 73.  In the past, flows have been modeled by HRSD to connect to the existing
        
        
          interceptor system at Hillwell Road.  HRSD’s main requirement is that the future interceptor
        
        
          
            Figure 78: Overall existing and proposed water
          
        
        
          
            system and main connections for the study area
          
        
        
          Proposed water transmission
        
        
          main
        
        
          Proposed intermediate water
        
        
          transmission main
        
        
          Proposed water main
        
        
          Existing water main
        
        
          Existing intermediate water
        
        
          transmission main
        
        
          Economic Development
        
        
          Catalyst Area -  proposed water
        
        
          transmission main
        
        
          Study area
        
        
          Economic Development
        
        
          Catalyst Area
        
        
          follows a designated transportation corridor that is wide enough to ultimately accommodate
        
        
          up to two HRSD pipelines.  Additionally, some portions of the HRSD system can be designated
        
        
          simply as transmission lines rather than as interceptors.  Transmission lines are pipelines that
        
        
          flow through an area but are not intended to provide service to the area through which they
        
        
          flow.
        
        
          Force main pipe sizes for the new pump stations within the Dominion Corridor were assumed
        
        
          to be the same size as equivalent existing pump stations.  When possible, these force mains
        
        
          will manifold together prior to connecting to the proposed HRSD Interceptor Force Main or
        
        
          an existing force main.  The exact location and size of future Pump Stations and Force Mains
        
        
          will be determined as development progresses throughout the Dominion Corridor.  For the
        
        
          purposes of this report, location, size, and length of all sanitary sewer infrastructure has been
        
        
          approximated based on the projected Program Allocations and preliminary layout of proposed
        
        
          development.