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Lake Pontchartrain Causeway Safety Bays CMAR
Project Information
- Project Location:
- LA
- Status:
- Completed - Jan 2019
- Structure Type:
- Bridge
References
- Client:
- Greater New Orleans Expressway Commission
Scope Of Work
The Greater New Orleans Expressway Commission (GNOEC) sought to improve the safety of the 23.83 mile Lake Pontchartrain Causeway Bridges by adding shoulders and emergency pullover areas on both spans.
The GNOEC chose a Construction Management at Risk (CMAR) delivery method for a solution to meet their stated goals of:
Increased emergency stopping areas
Cost effective solution
Least Impact to Commuters
Boh Bros.’ experience in the CMAR process facilitated concurrent design and construction of twelve (12) – 1,008-foot-long pullover lanes comprised of precast components which were fabricated offsite and subsequently transported and installed from the water, thereby drastically minimizing work zones on the bridge and traffic impacts.
Twelve (12) – 1,008-foot-long by 16-foot-wide safety shoulders, comprised of:
192 – 54” diameter Precast concrete spun cast cylinder piles, varying from 54’ – 104’ long
192 – Precast concrete caps, varying from 11’-15’ in length, 4.67’ wide, 3.58’ depth
216 – Type III Girders, 53’–8” long
144 – Type IV Girders, 83’-11” long
180 – Precast deck sections complete with barrier rails
Project Images
