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Published - June 24th, 2020

Mammoet completes installation of safety lanes on New Orleans Causeway

Mammoet completes installation of safety lanes on New Orleans Causeway

Mammoet completes installation of safety lanes on New Orleans Causeway (a raised road or track across water or low ground). 72 shoulder spans have been successfully set with minimal disruption to traffic.

Mammoet’s crews have successfully set the remaining 72 shoulder spans on the northbound lanes of the New Orleans Causeway in Louisiana by means of the Mammoet's Self-Propelled Modular Transporter (SPMT) atop a barge. The shoulders are located between the crossovers, giving motorists and first responders a safe place to pull over when there are breakdowns or accidents. All 180 spans of both the north- and southbound lanes were set without a single incident. This endeavour is considered the most significant improvement to the almost 39 kilometre long bridge since the second span was completed in 1969. To reduce the duration and quantity of traffic disruptions on this key bridge, each of the 26 meter long northbound spans were initially rough set approximately three feet from the final set location as a preparatory step to the lane closures. During these overnight lane closures, other contractors on the Boh Bros. Construction team would sawcut and remove the precast concrete guardrails from the existing bridge spans and coat the cut area with epoxy.