Mill Creek / Peaks Branch / State Thomas Drainage...
Transcript of Mill Creek / Peaks Branch / State Thomas Drainage...
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Pre-Bid Meeting
July 25, 2017
Mill Creek / Peaks Branch / State ThomasDrainage Relief Tunnel
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Pre-Bid Meeting Agenda
• Introductions (City - TWM)
• Overview (City – TWM)
• Project Summary (Halff)
• Stormwater Management (City – SWM)
• Business Diversity Plan (City – OBD)
• Project Information (B&V)
• Questions
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Introductions
• City of Dallas - Trinity Watershed Management• Director – Sarah Standifer• Sr. Program Manager / Assistant Director (I) – J. Milton Brooks, P.E.• Project Manager – Jose Lopez, P.E.
• Construction Manager – Black & Veatch• Pre-Construction Manager – Ray Brainard, P.G.
• Construction Manager – Paul Smith, C.C.M.
• Project Manager – Eudomar Silva, P.E.
• Design Engineer - Halff / COWI• Project Manager – Todd Woodson, P.E.• Tunnel Design – Keith Gaspar, P.E.
MILL CREEK/PEAKS BRANCH/STATE THOMAS DRAINAGE RELIEF TUNNEL PROJECT 37/25/2017
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Introductory Notes
• Sign In Sheets• All Attendees must sign in
• Project Bid Documents• Obtain bid documents – call 214-948-4250
• Oak Cliff Municipal Center, Room 307, 320 E. Jefferson Boulevard, Dallas 75203
• Must be a registered plan holder to receive addenda• NCTCOG Standard Specifications for Public Works
Construction (Oct 2004 version)• 817-695-9140 or [email protected]
• Networking Opportunity - Immediately after pre-bid meeting
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Project Schedule
• Bids Due
• September 1, 2017, by 1:00 PM• City Hall 3FN• Business Development & Procurement Services
• Bids Opening
• September 1, 2017, at 2:00 PM• City Hall L2FN• Business Center
• Estimated Construction Award - Fall 2017
• Estimated Notice To Proceed - Late 2017
• Estimated Project Completion - 2022
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Mill Creek / Peaks Branch / State Thomas Watersheds
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Mill Creek / Peaks Branch /State Thomas Background
Flooding has occurred in the Mill Creek, Peaks Branch andState-Thomas areas for many years
• Mill Creek and Peaks Branch were originally naturalstreams draining into the Trinity River and White RockCreek
• In the early 1900s, the streams were enclosed inunderground systems
• Undersized drainage systems cause streets to flood
• Flood depths can be up to 10 feet high
• Approximately 3,800 properties are impacted by one footor more of flooding in the Mill Creek/Peaks Branch area
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Fair Park Flash FloodingMay 1995
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Photo shows cars that floated – Fair Park
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Flooding of IH-30 March 2006
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Baylor Hospital Area Flooding March 2006
Skillman near Oram
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Munger
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Peaks Branch Flooding March 2006
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Worth Street Flooding
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Mill Creek / Peaks Branch /State Thomas Background
Bond Programs in 2006 and 2012 provided fundingfor storm drainage relief systems for the Mill Creek,Peaks Branch and State-Thomas areas
• The 2006 Bond Program provided funding for separateconventional drainage improvement projects
• In 2008, Mill Creek and Peaks Branch drainage projectswere combined into one tunnel project
• In 2012, the State-Thomas relief drainage project wascombined with the Mill Creek / Peaks Branch tunnel
• The 2012 Bond Program provided additional funding forconstruction of the combined drainage tunnel
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Mill Creek/Peaks Branch/State Thomas Drainage Tunnel
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Project Summary• Tunnel Length – 5 miles• Tunnel Depth – 70 feet to 150 feet• Tunnel Sections –
• Excavated –• Circular - 32.5’ diameter Horseshoe - 38’ X 32.5’
• Finished –• Circular – 30’ diameter Horseshoe - 35.5’ X 30’
• Shafts – 7 Total, 12.5’ to 40’ finished diameter• Tunnel Lining – 15 inches thick
• Primarily non-reinforced cast-in-place concrete
• Tunnel Excavation – Approximately 1,100,000 CY• Dewatering Pump Station – 30,000 gpm• Tunnel Construction Medium – Austin Chalk
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Tunnel Profile
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Tunnel Sections
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Intake Site F
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Residential
FederalReserve
Bank
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Tunnel Lateral F
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Intake Site E
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Residential
Commercial
Residential
Commercial
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Tunnel Lateral E
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Intake Site D
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Site D - Surface Improvements
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Residential
Residential Park
School Shaft D
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Intake Site C
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Santa
Fe T
rail
Commercial
Commercial
IH 30
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Intake Site A
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Rail
Open Lots Open Lots
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Dewatering Pump Station
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Outfall Site O
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Outfall Shaft
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Tunnel Outfall Structure
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Outfall Site O
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Apartments
Residential
Outfall Shaft
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Right-of-Way Status
• Surface Properties • All Intake sites property acquired
• Property at Outfall site acquired
• Subsurface Easements • All private easements have been acquired
• Acquiring easements from public agencies
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Construction Site
Stormwater Pollution
Prevention
Mill Creek / Peaks Branch / State ThomasDrainage Relief Tunnel
City of Dallas
Trinity Watershed Management
Stormwater Management
Scott Morris
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Agenda
Introduction
Part I: What is Stormwater? Who is StormwaterManagement?
Part II: MS4 Permit/ TPDES Construction General Permit
Part III Stormwater Pollution Prevention Plans
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PART I
What Is Stormwater
&
Who Is Stormwater Management?
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WHAT IS STORMWATER?
• Stormwater is rain water runoff.
• Flows over:
• Streets
• Sidewalks
• Driveways
• Parking Lots
• Rooftops
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WHAT IS STORMWATER?
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Stormwater flows into
storm drain inlets, and
enters the storm
drainage system.
Storm drainage system
discharges directly into
local creeks, lakes, and
the Trinity River.
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Who is Stormwater Management
• Stormwater Management Division• Inspections of Construction sites/Industrial facilities
• Ensure compliance with federal, state and local regulations
• Educating the public• Pollution prevention related issues
• Water Sampling• To detect and correct water pollution in lakes, creeks and rivers
• CCTV (closed circuit television)• Inspects storm sewer system
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PART II
City of Dallas Municipal
Separate Storm Sewer System
(MS4 Permit)
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City of Dallas MS4 Permit
The City of Dallas holds a Municipal SeparateStorm Sewer System (MS4) Permit which allowsthe City of Dallas to discharge from its stormdrainage system directly into the Waters of theUnited States in accordance with therequirements set forth in the permit.
The MS4 Permit is issued by theTexas Commission on Environmental Quality
The City’s current permit is:TPDES Permit No. WQ0004396000 (issued on October 6, 2011)
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CGP Requirements
• TPDES Construction General Permit Number (CGP) TXR150000
• Covers all construction activity ≥ 1 acre
• Effective Date: March 5, 2013
• New General Permit is expected in 2018
• Permit renewal required
• SWP3 update necessary
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PART III
Stormwater Pollution Prevention Plans (SWP3)
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SWP3 Requirements
• SWP3 must be completed and implemented prior to any construction activity including• Clearing
• Grading
• Excavating
• Filling and Embankment
• Demolition
• Similar activities that disturb or expose soil including stockpiling fill material
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SWP3 Requirements
SWP3 Must Be…
• Prepared and implemented• Prior to sending in applications for CGP coverage
• Prior to commencing construction activities
• Prepared by licensed professional engineer
• Retained on-site
• Readily available for review
• Kept current
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Resources
• City of Dallas Stormwater Managementwww.wheredoesitgo.com
• City of Dallaswww.dallascityhall.com
• U. S. Environmental Protection Agency (EPA)www.epa.gov
• Texas Commission on Environmental Quality (TCEQ)www.tceq.com
• North Central Texas Council of Governments (NCTCOG)www.dfwinfo.com
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Stormwater Management
Mailing AddressCity of DallasStormwater Management 320 E. Jefferson Blvd., Rm. 108 Dallas, TX 75203
Websitewww.wheredoesitgo.com
ContactKevin Hurley214-948-4022
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City of DallasDiversity Plan
Lisa Alonzo214-243-2131
Mill Creek / Peaks Branch / State ThomasDrainage Relief Tunnel
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City of Dallas Diversity Plan
• Sets Minority/Women Business Enterprises goals (M/WBE)
• Construction – 25%
• Local / Non-local M/WBE participation
• Applies to all prime City contracts over $50,000
• Provides documentation to determine Diversity Plan
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Certification Requirements & Assistance
• M/WBE firms must be certified at time of Council award
• M/WBE Vendor List Development
• Trade and service
• Subcontracting scope
• Certification AssistanceLisa Alonzo214-243-2131
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Acceptable Certifications
• Interested minority and women owned business can pursue their certification by selecting any of the following agency websites:
• www.nctrca.org
• www.dfwmsdc.com
• www.wbcsouthwest.org
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City of Dallas Diversity Plan
• Business Inclusion & Development Forms
• Form 203 - Business Inclusion and Development Affidavit
• Form 204 - Ethnic Workforce Composition Report
• Form 213 - Schedule of Work & Actual Payment
• Form 214 - Subcontractor Intent
• Form 215 - B.I.D. Documentation Form
• Due dates for forms
• Form 203 - with bid
• Other Forms - when notified of Intent to Award
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City of Dallas Diversity Plan Importance of a Diverse Team
• City of Dallas explores ways to have greater participationamong MWBE’s on larger-scale projects
• Program focuses on providing opportunities for ready,willing and able MWBE’s
• Improve business management abilities
• Develop organization and professional skills
• Provide partnerships with established contractors that providesimilar services
• Effort furthers City’s commitment to assisting MWBE’s incompeting for future City of Dallas contracts
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Form 203
Form #1
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Form 204
Form #2
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Form 213
Form #3
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Form 214
Form#4
(Rev 5)
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Form 215
Form#5
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Form 215
Form#5
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Mill Creek / Peaks Branch / State ThomasDrainage Relief Tunnel
Project InformationSchedule Constraints
Construction Considerations
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Contract Considerations
• Escrow bid documents due within 3 days of notification of apparent low bid (A-46)
• Project does not include a Dispute Review Board
• GBR and DSC clauses are for shaft and tunnel work only - do not cover surface and near surface work (A-47)
• Site security requirements at Site O (A-61)
• Pre-construction property condition survey (01401)
• Contractor not responsible for building demolition
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Construction Considerations
• No blasting allowed
• Potentially gassy classification
• Muck main tunnel from Site O only
• Concrete lining of main tunnel only from Sites O and F
• Power at Site O (8,000 kVA – 3-phase 13.2kV) (A-33)
• Probe and grout (02950)
• Settlement monitoring at Woodall Rodgers Frwy bridge foundations and DART tunnels (02970)
• Required rest breaks per City ordinance
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Construction Considerations
• Core Viewing at Hensley Field (Directions Provided)• Today 1:00 PM until 5:00 PM• Tomorrow 9:00 AM until 5:00 PM
• Site Visits • On Your Own (Directions Provided)
• Partnering• Permits
• Stormwater• Building (for dewatering station building)• Street cut
• Geotechnical Engineering Studies for near surface work
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Schedule Constraints
• Muck Hauling (A-31)• Monday through Friday - 7:00 AM to 7:00 PM• Saturday - 8:00 AM to 7:00 PM• Sunday/Holidays – No hauling allowed
• Noise Ordinance Work Hours (A-31)• Sites O, C, F - Variance in place to allow work any day
without hour restrictions• Sites A, D, E - Variance in place to allow work Monday
through Saturday without hour restrictions. • Sites A, D, E - No Work on Sundays and Holidays• Must comply with noise ordinance requirements
• Failure may cause loss of 24-hour work variance
• Must comply with Section 01580 – Noise Abatement
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Schedule Constraints
• Site A
• Not available September 1 through November 1 each year for State Fair operations
• Commencement of work may not start between May 1 and November 1
• Site D
• Carroll Avenue improvements adjacent to Ignacio Zaragosa School conducted only during summer months
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Bid Submittal
• Must price all base bid schedules
• Must price all deductive bid alternatives
• Must acknowledge all addenda
• Submit all required Documents
• Bids Due September 1, 2017, by 1:00 PM
• Deliver sealed bids to:
Office of the Purchasing Agent of the City of Dallas, City Hall,
Room 3FN, 1500 Marilla Street, Dallas, TX
• Website Informationwww.dallascityhall.com/departments/trinitywatershedmanagement
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Questions
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Questions
• Send questions via email to –
Ray Brainard – Pre-Construction Manager
• Responses will be provided through addendum to all plan holders
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Networking Opportunity
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