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Published byErnest Mosley Modified over 9 years ago
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Construction Manager at Risk Project Overview and Performance Jenica Keller, PE Assistant Chief of Project Management NDOT
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What is CMAR?
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Procurement Strategy Solicitation: RFP and Interview Evaluation & Selection process: – Qualification based – Best Value (qualification + Fee)
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GMP Partnering ICE 3 ICE 1 OPCC 2 OPCC 3 ICE 2 OPCC 1 CMAR Process
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NDOT Experience 4 projects – Diverging Diamond Interchange, pavement, structural and tunnel rehabilitation, ITS and bike path $1.5M to $31M Others under consideration
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Moana Lane Improved Efficiency & Safety … Same Footprint Location and Scope I-580 at Moana in Reno Construct DDI $7M
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Moana Lane Why CMAR? Adjacent local agency project High traffic volumes Subgrade issues
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Stateline to Stateline Bikeway Location and Scope US-50 near South Lake Tahoe Construct multi- use path $1.5M
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Stateline to Stateline Bikeway Why CMAR? Environmentally sensitive area Intense multi-agency coordination Very short construction season during peak tourist activity
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Carlin Tunnels Location and Scope I-80 at Carlin Rehabilitate pavement, structures, tunnels and lighting $31M
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Carlin Tunnels Why CMAR? State of the art LED Tunnel Lighting Environmentally sensitive area Unknown bridge deck conditions Tight working conditions Availability of labor/housing
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. Kingsbury Grade Location and Scope SR-207 near South Lake Tahoe Rehab pavement and drainage $15-18M
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Kingsbury Grade Why CMAR? Environmentally sensitive Very short construction season during peak tourist activity MOT and schedule Utilities Groundwater Stakeholders
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How are we doing? Innovation Budget Schedule Risk
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Program Performance - Innovation Multiple GMPs: – Early procurement of materials More scope for same budget Aggressive construction schedule/sequence More efficient methods
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Program Performance - Budget Average preconstruction cost relative to bid 1.8% CMAR 1.5% ICE Average difference in bid -2.8% CMAR/ICE 1.6% CMAR/Engineer Average savings from innovation 11.7%
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Program Performance – Schedule Contractor’s input improved the schedule by identifying multiple shifts, increased production rates, etc. This resulted in reducing overall construction duration.
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Program Performance – Risk Risks identified and mitigated during design CMAR owns quantity risk Average risk reserve budget relative to bid 2.5% CMAR 3-5% for DBB Trend shows risk reserves are adequate with budget remaining (NDOT retains) at closeout Budget related change orders = 0
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What lessons have we learned? Program Procurement Construction
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Lessons Learned - Program Designate an executive level champion Learn from others Ensure industry support Form an internal program team Evaluate each step along the way and adjust Known, fair and followed!
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Lessons Learned - Procurement Communicate project goals, evaluation criteria Past CMAR experience wasn’t required Consider a pre-proposal meeting Evaluation and Selection: multi-disciplinary team; E&S plan; orientation/training Allow industry/FHWA to observe Offer debrief meetings
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Lessons Learned - Construction Earlier communication and coordination leads to higher quality Overrun/Underrun Risk Easy to implement: not a significant culture change and minimal process changes required
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Conclusion CMAR has been successful NDOT will continue to use CMAR
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