Mandeville in St. Tammany Parish, Louisiana — The American South (West South Central)

Lake Pontchartrain Causeway Bridge

National Historic Civil Engineering Landmark

Photographed By Cajun Scrambler, November 10, 2016

1. Lake Pontchartrain Causeway Bridge Marker

Inscription. Click to hear the inscription.

The original 23.86 mile-long structure, which now carries the Southbound traffic, was designed by the firm of Palmer & Baker. When opened in 1956, the structure was the longest bridge in the world by more than 15 miles. In building the bridge, which took just fourteen months, assembly-line, mass-production methods were utilized for the first time in the construction of a bridge. It was designed to employ hundreds of identical, hollow concrete pilings, concrete caps, and pre-stressed deck sections manufactured at an on-shore facility and barged into place. Engineering News-Record acclaimed the project to be "a bold venture requiring unusual foresight, ingenuity and resourcefulness."

Opened: August 30, 1956 Dedicated: October 18, 2003

Erected 2013 by American Society of Civil Engineers.

Topics and series. This historical marker is listed in these topic lists: Bridges & Viaducts • Landmarks • Roads & Vehicles • Waterways & Vessels. In addition, it is included in the ASCE Civil Engineering Landmarks series list. A significant historical date for this entry is August 30, 1956.

Location.

Paid Advertisement

Click on the ad for more information.
Please report objectionable advertising to the Editor.

Click or scan to see
this page online

30° 21.91′ N, 90° 5.642′ W. Marker is in Mandeville, Louisiana, in St. Tammany Parish. Marker is on North Causeway Boulevard, on the right when traveling south. Located and mounted on the Causeway Toll Plaza building. Touch for map. Marker is at or near this postal address: 100 North Causeway Boulevard, Mandeville LA 70448, United States of America. Touch for directions.

Other nearby markers. At least 8 other markers are within 4 miles of this marker, measured as the crow flies. Lake Pontchartrain Causeway (here, next to this marker); Greater Mandeville Veterans Memorial (approx. one mile away); Our Lady Of The Lake Church (approx. 1.6 miles away); Battle of Lake Pontchartrain (approx. 2.3 miles away); Pottery Hill (approx. 2.7 miles away); Native Peoples (approx. 3.7 miles away); The Enslaved (approx. 3.8 miles away); Sugar Mill Operation (approx. 3.9 miles away). Touch for a list and map of all markers in Mandeville.

Photographed By Cajun Scrambler, November 10, 2016

2. Lake Pontchartrain Causeway Bridge Marker

Credits. This page was last revised on December 9, 2022. It was originally submitted on November 20, 2016, by Cajun Scrambler of Assumption, Louisiana. This page has been viewed 478 times since then and 66 times this year. Photos: 1, 2. submitted on November 20, 2016.