module 3: design-build bidding, abc, and · 2016-08-14 · travis butz, pe, burgess & niple...
TRANSCRIPT
Travis Butz, PE, Burgess & Niple
Module 3: Design-Build Bidding, ABC, and Maintenance of Traffic
ABC-UTC In-Depth Web TrainingMilton Madison Bridge Replacement: the Mega-Lateral Slide
November 10, 2015COWI POWERPOINT
2
Existing Bridge
• 2012 Indiana & Kentucky Issue Request• Design Build Project• Replace Bridge at Same Location as Existing• Bridge Must Be Closed During Construction
Existing Bridge
Proposed Bridge
Bid Documents
240 vehicles per hour 5 AM to 9 PM
We’re gonna need a bigger boat!
240 Vehicles Per Hour
$$$
November 10, 2015
6
Bidding Formula
[A + B]
A = construction cost (including ferry)B = closure days x $25,000/day.
$25,000 x 365 = $ 9.1 Million
Bidding Phase
Sliding Idea
Buckland & Taylor
Burgess & Niple
Walsh
Bid Opening – September 22, 2010
› Five Contractors submitted bids
› Awarded to Walsh Construction:
› Cost to construct project $103 Million
› Length of bridge closure 10 days
› State’s Estimate $125 Million
Pier Retrofits
• Increase bending strength below river bottom
• Increase bending strength above river bottom
• Temporarily support temporary pier
• Support wider superstructure
Pier Strengthening
Construction Sequence – Temporary Piers
Existing Bridge
Temporary Pier
New Truss Span Floated in on Barges
New Truss Span Lifted by Strand Jacks
Sliding Girder Inserted
Truss Span Set Down on Sliding Girder
New Pier Cap
Completed New Spans Slid into Final Position
• The A + B bidding formula can be a great tool to encourage bidders to innovate.
• Maintaining traffic can be really complicated!
• Sliding small bridges is easier than sliding big bridges.
Lessons Learned:
Questions?
Thanks to the following for photos and other material included in this presentation :
• Walsh Construction• Charlie Gannon• Deborah Crawford (Milton Madison Facebook page)• Michael Baker, Inc.• Buckland and Taylor