Dominion-Blvd-Corridor-Study-Approved - page 118-119

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.
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