volume 1 - Halifax Regional Municipality

FINAL
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Wastewater Capital Program - Preferred Regional Servicing Strategy
Region
Capital Plan
Project No.
Area Project
ID
Combined
Project
Delivery
Implementation
Order
Project Description
System
HW
Project
Type
Project
Type
Diameter
(mm)
Length (m), Flow
(L/s), Volume
(m 3 )
Unit Rate
$/m, $/Lps, $/m 3
Base Cost
$M (2012)
Other Costs
(Crossings
etc.)
$M (2012)
Total Cost
$M (2012)
Year
Req'd
Period Req'd
Growth Areas
Serviced
Comment
West 32 HC1 2 Gravity sewer from Herring Cove diversion (top end) to Roaches Pond PS Herring Cove WW - TS WWM 1050 mm 3,531 $2,941 $10.38 $4.28 $23.46 2021 2021-2026
West 33 HC2 3
Gravity sewer from Princeton Rd (70m north of Roaches Pond PS) to Herring Cove
PS
Herring Cove WW - TS WWM 1050 mm 5,686 $2,941 $16.72 $2.47 $30.71 2026 2026-2031
West 34 HC3 HC4 4 Upgrade of Herring Cove SPS Herring Cove WW - Str WWPS-U N/A 1,800 $9,000 $16.20 $0.00 $25.92 2026 2026-2031
West 35 HC4 HC3 5 Forcemain from Herring Cove PS to Herring Cove WWTF Herring Cove WW - FM WWFM 1050 mm 632 $3,379 $2.13 $0.42 $4.09 2026 2026-2031
West 36 HC5 6 Upgrade of Herring Cove WWTF Herring Cove WW - TF WWTF-U N/A 53.55 MLD N/A $84.90 $0.00 $135.84 2031 2031-2036
23, 24, 25, 27, 28, 29, 30, 31,
32, 34, 37, 46, 51, 52
23, 24, 25, 27, 28, 29, 30, 31,
32, 34, 37, 46, 51, 52
23, 24, 25, 27, 28, 29, 30, 31,
32, 34, 37, 46, 51, 52
23, 24, 25, 27, 28, 29, 30, 31,
32, 34, 37, 46, 51, 52
23, 24, 25, 27, 28, 29, 30, 31,
32, 34, 37, 46, 51, 52
4 minor creek crossings, 1 road crossing (TBC)
3 minor creek crossings, 2 road crossings (opencut TBC)
Lump sum cost estimate - to be verified
1 minor creek crossing
West 37 HC6 1 I/I Reduction Program Herring Cove I/I $2.00 $0.00 $3.20 2013 2012-2016 allowance for study and implementation of recommendations
Central 11 MC1 1 I/I Reduction Program - manhole sealing Mill Cove MH N/A N/A N/A $0.03 $0.00 $0.05 2015 2012-2016 N/A
Based on the Sackville Area 5 I/I Study (CBCL, 2006) that
indicates that sealing of manholes could remove approx. 232 L/s,
which could result in a 61% reduction of the peak I/I component
Central 12 MC2 2
Storage Facility #1 at Glendale/Old Beaver Bank Road (upstream of Bedford
Sackville Trunk Sewer)
Mill Cove WW - Str SF-N N/A 6,000 $2,000 $12.00 $0.00 $19.20 2013 2012-2016 40, 42, 43, 44
Required to alleviate conveyance capacity in the upper 2/3 of the
Bedford Sackville trunk sewer
Central 13 MC3 8
Storage Facility #2 at Bedford Range Park (downstream of Bedford Sackville Trunk
Sewer)
Mill Cove WW - Str SF-N N/A 7,000 $2,000 $14.00 $0.00 $22.40 2021 2021-2026 39, 38
Required to reduce frequency of overflows at Fish Hatchery PS
and alleviate conveyance capacity in the lower Bedford Sackville
trunk sewer; limiting the pass forward flow to 900 L/s
Central 14 MC4 5
Localized improvments to Bedford Sackville Trunk Sewer sections - diameters range
between 525 mm and 1200 mm over 4.44 km.
Mill Cove WW - TS WWM Ranges 4,436 $2,428 $10.77 $0.00 $17.23 2019 2016-2021
Central 15 MC5 MC6 6 New wastewater pumping station at Mill Cove WWTF for diversion to Halifax Mill Cove WW - Str WWPS-N N/A 330 $6,000 $1.98 $0.00 $3.17 2019 2016-2021
Central 16 MC6 MC5 7 500mm Wastewater forcemain from Mill Cove WWTF to Mill Cove Diversion Sewer Mill Cove WW - FM WWFM 500 mm 1,139 $1,857 $2.11 $0.00 $3.38 2019 2016-2021
Central 17 MC7 4
Diversion Sewer from Mill Cove WWTF to Halifax, along Bedford waterfront to
Bedford Hwy tunnel
Mill Cove WW - CS WWM 600 mm 3,147 $1,060 $3.34 $0.45 $6.05 2016 2016-2021
Central 18 MC8 3 General I/I reduction program allowance Mill Cove I/I $1.00 $0.00 $1.60 2016 2016-2021
42, 40, 43, 44, 39, 38, 41 Assume twinning of existing trunk sewer to address existing
conveyance capacity limitations
42, 38, 39, 40, 41, 43, 44, 35 Sized to convey 330 L/s from existing service area from
Springfield, existing "peel off" area from Mill Cove, and future flows
from said growth areas
42, 38, 39, 40, 41, 43, 44, 35,
36, 37
42, 38, 39, 40, 41, 43, 44, 35,
36, 37
42, 38, 39, 40, 41, 43, 44, 35,
36, 37
Sized to convey 330 L/s from existing service area from
Springfield, existing "peel off" area from Mill Cove, and future flows
from said growth areas
Monitoring should be implemented now with prgrame for works
scheduled in 2016-2021 5yr period
Central 6 SP1 SP2 4 Springfield Lake forcemain pumping south Springfield WW - FM WWFM 200 mm 1,941 $788 $1.53 $0.00 $2.45 2026 2026-2031 42
Central 7 SP2 SP1 3
New wastewater pumping station at Springfield Lake WWTF to pump flows back to
Sackville Dr for diversion to Bedford Sackville Trunk Sewer
Springfield WW - Str WWPS-N N/A 53 $6,000 $0.32 $0.00 $0.51 2026 2026-2031 42
Central 8 SP3 2 Diversion Sewer from Springfield to Bedford Sackville Trunk Sewer Springfield WW - CS WWM 300 mm 896 $783 $0.70 $0.00 $1.12 2016 2016-2021 42
Central 9 SP4 5 Decommission Springfield WWTF Springfield WWTF-D N/A N/A N/A $2.00 $0.00 $3.20 2031 2026-2031 N/A Lump sum cost estimate - to be verified
Central 10 SP5 1
Separation/resewerage - New storm sewers for Springfield Lake Stormwater
Collection System
Springfield SW - Pipe SWM Ranges 6,714 $1,000 $6.71 $0.00 $10.74 2016 2012-2016 42 Revised unit cost of $1M / km provided by HW
GRAND TOTAL $365.92 $37.37 $645.26
*Sizing and capacities based on 2011 calibrated hydraulic model. More accurate flow monitoring and observed data required for detailed design purposes may produce differing sizing and capacity needs.
October 31 2012 Page 177 of 272
2012-09-25-RWWFP Preliminary Capital Program - FINALv3.xlsxCapital Program