Date and Time
Wednesday Oct 25, 2023
11:30 AM - 1:00 PM EDT
11:30 Registration & Lunch
12:00 Workshop Starts
1:00 Workshop ends
Worth 1 PDH
Location
McKimmon Center
1101 Gorman Street
Raleigh, NC 27606
Fees/Admission
Cost:
$45.00 (includes lunch)
for ACEC/NC Members & NCDOT Employees
$60.00 nonmember Price
Registration Details:
Registrations are due in the ACEC/NC Office by Friday, October 20th Please send a substitute if you register but are unable to attend*. Cancellations must be received by end of business on Friday, October 20th in order to receive a refund.
*No-shows will be charged full price.
Contact Information
Tammy Bromley
Send Email
Description
Lake Pontchartrain Causeway Safety Bay Project
Using the latest Accelerated Bridge Construction (ABC) practices, a $60-million project was completed in 2020 to install safety bays on America’s longest bridge, the Lake Pontchartrain Causeway in Louisiana. The project introduced six 1008’-long x 16’-wide safety (pullover) bays at six locations along both the northbound and southbound structures.
The improvements were the product of owner, designer and contractor collaboration under a CMAR (or CMGC) contract. With two lanes of traffic in each direction, no shoulders and over 40,000 vehicles a day, lane closures during construction were not feasible. Therefore, an all-precast solution was developed – cylinder piles, pile caps and composite girder/slab deck units – with only cap-to-existing cap and cap-to-pile connections being cast-in-place. All erection was performed using barge-mounted cranes and self-propelled modular transporters (SPMTs.)
Truly an innovative solution for the 21st century … or just history repeating itself? Comparing modern-day ABC with construction of the original historical bridge demonstrates that imitation (with a dose of innovation) is sometimes the best “new” solution.
SPEAKER BIO:
CHRISTOPHER D. WHITE, PE, is a Structures Senior Technical Advisor for Volkert, Inc., in Houston, TX. He received his BS and MS degrees in Civil Engineering from the University of Illinois at Urbana-Champaign and the University of Texas at Austin, respectively.
His major project resume includes: the Downtown San Antonio “Y” Projects in Texas; the Sunshine Skyway Bridge and Roosevelt Bridge in Florida; the “Big Dig” CA/T project in Boston; the Kentucky Lakes Arch Bridge and I-65 Louisville Downtown Cable-Stay Bridge in Kentucky; the Lake Pontchartrain Safety Bay Project in Louisiana; and international projects for the Trans Israel Highway and Panama Metro Line 2.
Mr. White is the Chairman of the PCI Committee on Bridges and serves on the ASBI Technology and Innovation Design Subcommittee and joint PTI/ASBI DC-40 Bridge Design Committee. He works closely with the AASHTO T-10 Committee on development of Section 5 of the AASHTO “LRFD Bridge Design Specifications.”
