Program Delivery Plan

SECTION 3. SOUTH BASIN PROJECTS
3.4 South Forced System Capacity Improvements Projects
3.4.1 SFL-C-0001 (Multiple PSs – Nicholson Drive – Brightside Drive)
Project Description
Purpose of the Project / Project Background
The project includes replacement of PS 236, PS 336, PS 311, PS 107, Booster Pump Station
(BPS) 505, and construction of new PS 503A and PS 236A. The new pump stations will work
in conjunction with forcemain upgrades in other South Forced Lower Basin projects to
alleviate chronic SSOs at and near these pump stations.
The upgrades will also allow the pump stations to handle future peak wet weather flows that
are predicted by the model to exceed the existing maximum capacities.
Location
The locations of the pump stations are shown in Table 3-16 and in Figure 3-29.
Scope
This project includes construction of the pump stations shown in Table 3-16. BPS 505 and PS
505A are related, in that PS 505A is an overflow pump station for BPS 505. BPS 505 is an existing
in-line booster pump station that will be converted to a wet well pump station, PS 505. Since
BPS 505 will be converted to a wet well, it is possible that rather than building two new pump
stations, PS 505 and PS 505A could share a divided wet well and pump in two directions, with
one piped to the existing forcemain (BPS 505) and one piped to the new forcemain that will
intersect with the PS 42 forcemain (PS 505A). The PS 42 forcemain is described in the Central
Consolidation PS 42 Forcemain Project, as described in Section 4 of this plan.
PS 236 and PS 236A will also share a divided wet well and pump in two direction, with one
piped to the existing forcemain from PS 236 (dry weather) and one piped to the new PS 236A
(wet weather).
TABLE 3-16
SFL-C-0001 (Multiple Pump Stations – Nicholson Drive – Brightside Drive) – Pump Station Information
Existing Max. Future Peak Wet Dry
Capacity Weather Flow Weather
(GPM)
(GPM) (GPM)
PS No.
PS 236
PS 336
PS 311
PS 107
BPS 505
PS 505A
PS 236A
Location
Brightside Road, near
Riverbend Road
Nicholson Road, near
Riverbend Road
Twelve Oaks Road, near
Riverbend Road
Brightside Road, near Earl
Gross
Intersection of Oleson Road
and Brightside Road
Intersection of Oleson Road
and Brightside Road
Brightside Road near
Riverbend Road
625 4,361 609
417 978 153
556 2,115 152
833 965 375
Comments
5,000 5,782 2,014 Will be converted from
in-line to wet well.
New 2,761 0 Overflow PS for BPS
505
New 699 0
Note: The existing maximum capacities for the PSs were obtained from the DPW Field Pump Station Maintenance
reference guide. The future peak wet weather flow was obtained from the BTRSSO hydraulic model.
Total Construction Bid Amount is $6,100,000.
Scheduled Design Appropriation Year was 2009.
Scheduled Construction Appropriation Year is 2011.
Design is on-going.
GNV31031158547.DOCX/103440004 3-69 JANUARY 2011
REV. 5