HomeMy WebLinkAbout04.c. Receive an update on Ygnacio Valley Road Project (Walnut Creek Sewer Renovations, Phase 12, District Project 8435) Page 1 of 6
Item 4.c.
CENTRAL
CENTRAL CONTRA COSTA SANITARY DISTRICT Central Contra Costa Sanitary District
September 17, 2018
TO: ENGINEERING AND OPERATIONS COMMITTEE
FROM: DAMASIO ZEPEDAARAGON, ASSOCIATE ENGINEER
REVIEWED BY: SASHA MESTETSKY, SENIOR ENGINEER
EDGAR J. LOPEZ, CAPITAL PROJECTS DIVISION MANAGER
JEAN-MARC PETIT, DIRECTOR OF ENGINEERING AND TECHNICAL
SERVICES
SUBJECT: RECEIVE AN UPDATE ON YGNACIO VALLEY ROAD PROJECT (WALNUT
CREEK SEWER RENOVATIONS, PHASE 12, DISTRICT PROJECT 8435)
An update regarding the Ygnacio Valley Road Project will be discussed at the meeting.
GOAL TWO: Strive to Meet Regulatory Requirements
Strategy 2- Strive to minimize the number of sanitary sewer overflows
GOAL FIVE:Maintain a Reliable Infrastructure
Strategy 1 - Manage assets optimally throughout their lifecycle, Strategy 2- Facilitate long-term capital renewal and
replacement
ATTACHMENTS:
1. Presentation
September 17, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 34 of 42
Page 2 of 6
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YGNACIO VALLEY ROAD UPDATE
(WALNUT CREEK SEWER
RENOVATIONS, PHASE 12, DP 8435)
Engineering & Operations Committee
September 17, 2018
Damasio Zepeda Aragon
Capital Projects Associate Engineer
BACKGROUND
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September 17, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 35 of 42
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BACKGROUND
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PROJECT AND YGNACIO VALLEY
SITE DETAILS
• General Contractor: California Trenchless, Inc.
• Notice to Proceed on March 12, 2018
• Project Status: 94% complete
• Total of 8,367 feet completed, 543 feet remaining
•Ygnacio Valley Work:
• Replacement of 65 feet of deteriorated 10-inch sewer
• Work completed over the course of seven nights from
August 19 to August 29, 2018
•Agency Permits obtained:
• CalTrans
• City of Walnut Creek
CENTRALSAN
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September 17, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 36 of 42
Page 4 of 6
COORDINATION AND CHALLENGES
• Coordination with various
stakeholders
• Mandated night work + ,
• Due to high traffic on
Yg n aci o Valley Road and QN7PAL CONsPA COSTA &&arm
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• Congested utility area
•48-inch water line T Y
•48-inch storm drainCREEK TRENCHRE88c
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• High-voltage electric vaults
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• Fiber optic ducts
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CONSTRUCTION CONFLICTS
EXISTING SEWER ALIGNMENT AT&T VAULT CONFLICT
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September 17, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 37 of 42
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CONSTRUCTION PHOTOS
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September 17, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 38 of 42
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QUESTIONS
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September 17, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 39 of 42