massachusetts water resources · pdf file• cfrp installed from within pipe ... spool pipe...
TRANSCRIPT
![Page 1: Massachusetts Water Resources · PDF file• CFRP installed from within pipe ... spool pipe 1,400-ft from repair area • New chambers installed at access pits . 17" Beacon Street](https://reader031.vdocument.in/reader031/viewer/2022030506/5ab3e7527f8b9a7e1d8eb15a/html5/thumbnails/1.jpg)
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Massachusetts Water Resources Authority
Cover
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Field Operations Maintenance
5000
6000
7000
8000
9000
10000
11000
12000
13000
14000
15000
16000
Cre
w H
ours
Maintenance Backlog in Crew Hours
$0
$50,000
$100,000
$150,000
$200,000
$250,000
$300,000
$350,000
$400,000
$450,000
Ove
rtim
e ($
$)
Overtime Spending
FY16 OT Budget
OT Actual
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Operations Division Metering - Miles Surveyed for Leaks
134.93
0
20
40
60
80
100
120
140
160
180
200
J A S O N D J F M A M J
Monthly Cumulative Target
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Water Distribution System Valves
0
250
500
750
1000
1250
1500
July August September October November December January February March April May June
# of
val
ves
Main Line Valves Exercised
Target = 1,100 main line valves annually
0
100
200
300
400
500
600
July August September October November December January February March April May June
# of
Val
ves
Blow-Off Valves Exercised
Target = 500 blow off valves annually
Type of Valve Inventory # Operable Percentage
FY16 to Date FY16 Targets
Main Line Valves 2,159 96.30% 95%
Blow-Off Valves 1,317 94.30% 95%
Air Release Valves 1,380 92.80% 95%
Control Valves 49 100.00% 95%
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Massachusetts Water Resources Authority
MWRA Projects in Stoneham
May 11, 2016
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8
MWRA Projects In Stoneham
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9
Stoneham High School Parcel
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Massachusetts Water Resources Authority
Beacon Street Line: Water Pipeline Repair -
Brookline
Construction Contract 7458
May 11, 2016
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12
Beacon Street Line – Bid Tabulation
Contractor Bid Amount Engineer’s Estimate $1,475,000 R. Zoppo Corp. $1,566,178 P. Gioioso & Sons, Inc. $1,688,500 P. Caliacco Corp. $1,691,815 RJV Construction, Corp. $1,718,000
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13
Beacon Street Line - Brookline
• Constructed in the1870s, it is part of MWRA’s Boston Low Service System
• 48-inch diameter cast iron pipe
cement mortar lined in 2000 • A significant portion of it is located
underneath the MBTA’s Beacon Street Green Line tracks
• The Beacon Street Line water main provides important service to the Longwood Medical area
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14
Beacon Street Line - Brookline
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15
Beacon Street Line - Brookline
2013 Leak/CFRP Repair
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16
Beacon Street Line – Carbon-Fiber Reinforced-Polymer (CFRP) Installation
• CFRP installed from within pipe • Multiple layers of carbon fiber
mesh with a resin mixture forms high strength structural lining
• Primary access pit located at
previous cleaning & lining 8-ft spool pipe 1,400-ft from repair area
• New chambers installed at access pits
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17
Beacon Street Line - Brookline
Emergency Egress Pit / Ventilation Primary Access Pit for Labor and Materials
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Massachusetts Water Resources Authority
Southern Extra High Pipeline
Section 111 (Boston)
Construction Contract 6454
May 11, 2016
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20
Section 111 (Boston) – Bid Tabulation
Contractor Bid Amount
Engineers Es)mate $13,500,000 Baltazar Contractors Inc. $10,880,000* P. Gioioso and Sons, Inc. $11,770,000 RJV ConstrucEon Corp. $11,915,000 Fed. Corp. $12,837,560 Albanese Brothers Inc. $14,374,735 Revoli ConstrucEon Co., Inc. $14,608,000
* The contractor, Baltazar Contractors Inc., has requested to withdraw their bid due to a bid error.
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Southern Extra High Pipeline – Section 111 (Boston)
• 5.4 mile, 36 inch diameter • DCR Roadways • Dedham ResidenEal • Mother Brook Crossing • Walnut Street Bridge Crossing • MBTA Crossing • Route 95 Crossing
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Section 111 - Construction Sequencing
CONTRACT 645411,000’
Approx. $11.8MNTP 5/16
CONTRACT 750410,000’
Approx. $10.7MNTP 9/16
CONTRACT 75056,800’
Approx. $7.3MNTP 12/16
Contract 6454
Contract 7504
Contract 7505
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Massachusetts Water Resources Authority
Section 4 Webster Avenue Pipe and Utility Bridge Replacement
Somerville
Contract 7335, NEL Corporation
May 11, 2016
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Northern Low Service System
WEBSTER AVENUE WATER PIPE & UTILITY BRIDGE
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Redesign Drawing
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