City of Longmont Larry Wyeno, P.E. · SMWSA – Renewable supply for SMWSA – Allows use of Denver...
Transcript of City of Longmont Larry Wyeno, P.E. · SMWSA – Renewable supply for SMWSA – Allows use of Denver...
City of LongmontLarry Wyeno, P.E.
Considering Alternative Delivery Factors considered
Legal Authority; State Law, Municipal Codes/Policies, Other
Complexity of ProjectObjectives/Goals; Budget, Schedule, Risk Internal Support, Knowledge and Experience Internal DB Team composition
DB Variations DB, DBO, DBOF Fixed Price DB Progressive DB Best Value DB
DB Projects WWTP Secondary Treatment
and Dewatering $33M WTP $42M WW Treatment Facility
Improvements $23M Pipeline $17M Anaerobic Digester &
Cogeneration $5M WTP & WWTP MCC
Improvements $1M
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Lessons Learned Paradigm Shift in
Thinking DBB to DB Internal Knowledge,
experience and support Internal DB team
composition Develop processes &
documents early Flexibility of DB
Eric Hecox
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Uses $800 million in existing infrastructure•Cost Recovery for Aurora’s Investments•Purchase of existing “Western Pipeline”
Construction of ~$100M of new infrastructure; in several phases
WISE Water Supply Benefits
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Aurora Water– Offset PWP costs (annual revenue of
$10M)– Continued use of PWP for drought
supply
SMWSA– Renewable supply for SMWSA– Allows use of Denver Basin aquifer for
drought supply
Denver Water– Drought and emergency supplies for
DenverOpens the door to regional cooperationTotal Affected Population = 2 million
Map of WISE System Components
D/B Contract Components
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Drivers for Fixed Price Design/Build Approach
1) Schedule – “Take-or-Pay” obligations in 2017
2) Early Price Certainty – 13 individual partners sharing in cost (10 South Metro, Denver Water, ECCV)
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D/B Team Selection Process
1) RFQ2) Short List3) RFP4) Selection5) Contract Negotiations6) Notice to Proceed
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Not as straight forward as planned
Approach to Selecting a Design-Builder for a Progressive
Design-Build Delivery Project
Jim Mallorey, P.E. - Metro Wastewater Reclamation District
Progressive Design-Build Selected for the Delivery of Five District Projects
Single contract/point of responsibilityNo forced relationship between
designer and contractorSchedule reductionRisk allocationOwner control of quality and designTransparency of costs + early cost
certainty
Design/Builder Procurement2-Step, Qualifications-Based Process
RFQ + RFP Shortlisted to 3 Teams Eligible to Propose Qualifications-Based Selection
(preconstruction-phase cost requested) Two (2) Confidential Meetings during
Proposal Period Basis of Design Provided
Basis for Proposer’s Technical Approach
Basis of Design Report (BDR) Establishes Design Definition
BDR Comprised of Technical Memorandums + General Drawings Constituting 10 to 15% design
Established “Boundary Conditions” and Guiding Principles District preferences Fixed vs. Open parameters
Hand-off Point to Design/Builder Basis for Evaluating Technical Proposals
Design/Builder design concepts and scope
Two-Phase Contractual Approach Outside legal consultant assisted District in preferred
contractual arrangement Engineers Joint Contract Documents Committee (EJCDC)
Two-Phase Contract1. Preliminary Services Agreement
Design deliverables (30/50/70/90%) Cost/risk model and cost proposal development Best Value Supplier/Subcontractor selection Permitting
2. Design/Build Agreement GMP-based; ability to convert to Stipulated Price Risk responsibility/assignment negotiated
District “Lessons Learned” and Best PracticesSpecify Designer- or Contractor-Led Design/Build Team
(if important)
Qualifications-Based Selection Invest in the project, not the procurement
Consider Asking for Design/Builder Fee or Indirect Costs Based on Percentage or Range (Must Be Prescriptive) General Conditions Design Services Engineering Services During Construction Fee
District “Lessons Learned” and Best Practices
Consider Benefits of Confidential Meetings Emphasize Dialogue/Conversation w/ Owner Use Meetings to Evaluate Team Chemistry Discuss Commercial Terms and Conditions Opportunity to Discuss Indirect Costs Discuss Self-Performance, Equipment Preferences
Bridging Documents Affirm the Need to Adhere to Basis of Design
District “Lessons Learned” andBest Practices
Two-Phase Contracting Approach Provided Flexibility Allowed Appropriate Risk Allocation First Phase Provides Added Leverage to Owners in
Negotiating Final Construction Cost; Provided “Off-Ramp” (if needed)
District “Lessons Learned” and Best Practices Include Relevant StakeholdersTake Time to Evaluate Organizational ImpactsEach Project Has Own “Personality”Owner Must Drive the DecisionLet Experts Facilitate the ProcessDon’t Underestimate Challenges with Implementing a
New Project Delivery Method Mental Business Processes