COMPLEX PROJECTS – PART II · COMPLEX PROJECTS – PART II I-25/Arapahoe and E-470 Widening CMGC...
Transcript of COMPLEX PROJECTS – PART II · COMPLEX PROJECTS – PART II I-25/Arapahoe and E-470 Widening CMGC...
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COMPLEX PROJECTS – PART III-25/Arapahoe and E-470 Widening CMGC ProjectsKraemer North America, LLCTim Maloney and Mike McNish
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RMACES 2017 – Merging Talent with Technology to Improve Performance
Complex Projects – Overview
CMGC Delivery Method Introduction–What is CMGC?– Added value from early contractor involvement
I‐25/Arapahoe CMGC Project– Overview, status, benefits of CMGC delivery
E‐470 Widening CMGC Project– Overview, status, benefits of CMGC delivery
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RMACES 2017 – Merging Talent with Technology to Improve Performance
Introduction to CMGC
CMGC– Construction Manager/General Contractor
Involves a Contractor (or team) in Both the Design and Construction Phases of a Project
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RMACES 2017 – Merging Talent with Technology to Improve Performance
Introduction to CMGC
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RMACES 2017 – Merging Talent with Technology to Improve Performance
CMGC – Delivery Method
Owner Selection of CMGC Method– Project Delivery Selection Matrix (CDOT)
Not for Use on Every Project Unique Projects – Aspects Include:
–Major risk elements– Schedule, phasing complexity– Need early contractor input to mitigate risk
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RMACES 2017 – Merging Talent with Technology to Improve Performance
CMGC – Overview of Process Contractor Selected Early in Design Partnership with Owner, Designer “Project First” Approach for Decisions Collaboration, Communication, Cooperation Cost, Schedule, Risk Evaluated with Every
Design Decision Have “Sat at the Table” Throughout Design
Gives a Great Understanding of What We’re Building
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RMACES 2017 – Merging Talent with Technology to Improve Performance
CMGC – Contractor’s Role Early Estimate – Cost Model/Owner Budget Schedule Risk Identification and Mitigation Innovation Constructability Review Quantity Reconciliation Contract Language/Specification Review
– NOTE: ALL THESE APPLY TO BOTH PRIME AS CMGC AND SUBCONTRACTORS INVOLVED DURING PRECONSTRUCTION
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RMACES 2017 – Merging Talent with Technology to Improve Performance
CMGC – Added Value
Reduction of Risk for Owner, Contractor– Build schedule early– Phasing opportunities
Subcontractor Involvement Pavement Type Selection Cost Estimate Approach – Full Understanding
of Project Risk, Constraints, Schedule, Phasing Opportunities for Risk Pool/Risk Items
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RMACES 2017 – Merging Talent with Technology to Improve Performance
I-25 and Arapahoe Road Interchange
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RMACES 2017 – Merging Talent with Technology to Improve Performance
Project Overview
Scope: Reconstructed Existing Interchange Owner: CDOT Contract Value: $52MM Schedule:May 2016 to July 2016 Asphalt Paving by Brannan Sand and Gravel 77,000 Tons of Permanent Asphalt 14,000 Tons of Detour
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Project Challenges Traffic and
180,000+ Vehicles per Day
Tough Access Difficult Phasing Significant Grade
Changes on Arapahoeand I‐25
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Current Status
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RMACES 2017 – Merging Talent with Technology to Improve Performance
CMGC Benefits During Bid Multiple Plan Reviews as Designed Developed
– 30%, 60% and 90% Plans Met with General Contractor to Discuss Phasing
and Schedule Discuss Expected Productivity and Number of
Mobilizations Compared to Bid‐Build Projects Don’t Know the GC’s Phasing Minimal Time to Prepare Bid Low Bid and Not Best Value
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RMACES 2017 – Merging Talent with Technology to Improve Performance
November 2016
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RMACES 2017 – Merging Talent with Technology to Improve Performance
Difficult Access
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Asphalt Benefits to Phasing
Existing Concrete Interchange to New Asphalt
Variable Depth Asphalt Overlays
Accelerated Construction with Weekend Closures
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Reduced Risk for Asphalt Contractor
Detour Paving Paid by the Ton
Fully Understand Phasing and Mobilizations
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Thanks to Brannon Sand and Gravel
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Thanks to Brannan Sand and Gravel
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E-470 Widening Parker Rd to Quincy Ave
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RMACES 2017 – Merging Talent with Technology to Improve Performance
E-470 Widening Overview
Scope: Road Widening and overlay Owner: E‐470 Highway Authority Contract Value: $78MM Schedule:May 2016 to December 2017 Asphalt Paving by Martin Marietta Materials 125,000 Tons HMA 71,000 Ton SMA
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RMACES 2017 – Merging Talent with Technology to Improve Performance
Parker Road Interchange
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RMACES 2017 – Merging Talent with Technology to Improve Performance
CMGC Benefits Owner had Concerns with Budget
– Early asphalt quotes that gave confidence to construct full project limits
Production Paving Project– Efficiency to asphalt pavers would make project successful
– Focus on maximizing efficiency with quantities, access and areas of work
Multiple Contract Packages to Maximize Paving Season
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RMACES 2017 – Merging Talent with Technology to Improve Performance
Production Paving
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RMACES 2017 – Merging Talent with Technology to Improve Performance
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E-470 Project Challenges
Joint Detail with Old and New Pavement
Mill and Overlay with 2’ Wide Petrotec
Open SB 3rd Lane from Gartrell Rd to Parker Rd by Dec 2016
Smoothness and Risk Mitigation on Overlay
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Thank You Martin Marietta
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Thank You Martin Marietta
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QUESTIONS?