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Home/New Orleans/Cathedral Excavation
archaeology excavation trowel sign bricks cathedral

Cathedral Excavation

An ambitious plan to fully restore the aging St. Louis Cathedral in New Orleans is taking a first step forward with an excavation under the building’s foundation. The small excavations are unearthing several hundred year’s of history beneath the French Quarter landmark.

excavation under brick foundation with square hold, ladder and water at bottom of hole
A 6-foot-deep hole reveals the Cathedral’s brick foundation and the water table.

a sinking foundation uncovered

Architects and engineers needed to see the ground beneath the front towers of the building to determine why the Cathedral is sinking. The elevation of the interior floor is nearly 20 inches higher than the front entrance. Workers dug three holes, each five to six feet deep, inside the Cathedral.

crew pulls up stone slabs for excavation in front of cathedral
Removing stone walkway for excavation in front of St. Louis Cathedral.

And crews dug another hole outside the front entrance. The holes exposed a foundation constructed on tiered bricks columns that stand on top of wood blocks. The bottom of the hole filled with water when the excavation reached the area’s shallow water table. Cathedral architect Andre Villere explained, “We have seen a good example of what the foundation looks like and it does not appear to be failing in any way.”

man wearing cap, black shirt, tan pants with shovel taps brick foundation
Architect Kevin Morris checks Cathedral’s brick foundation 6-feet below ground.

cathedral excavation excites archaeologists

The excavation reveals a timeline of the Cathedral’s history that dates back 300 years. French settlers built the first church on the site near the Mississippi River in 1727. Archaeologists found numerous brass pins that they believe were used to hold stretched cloth over the church’s windows before glass was available in the new French colony. And as they sifted through the mud and clay beneath the ground, archaeologists and students from the University of New Orleans found pottery, some of it early colonial pieces from France, and other pieces of Native American pottery.

man and woman archaeologists at cathedral excavation
UNO archaeologists scraping away layers of earth in front of the Cathedral.
man and woman screening dirt at excavation inside cathedral
Students screening excavated soil looking for tiny artifacts.

UNO Archaeologist shows artifacts

Watch this ‘show and tell’ video of artifacts unearthed at St. Louis Cathedral.

Today’s catheral is third building on site.

A fire that swept through New Orleans on Good Friday, 1788, destroyed the original church on the Cathedral site. A second, larger church was completed in 1794. The excavation revealed the brick floor from the 1794 church about two feet below ground. “It’s always fun thinking that you’re stepping down onto a floor that someone hasn’t stepped on in 200 years,” commented UNO Archaeologist Dr. Ryan Gray.

square of red bricks in herringbone pattern excavated from cathedral floor
Brick floor from 1794 church discovered below St. Louis Cathedral

Workers also discovered a horizontal black line two feet down that appears to be the burned ash and debris from the 1788 fire. Gray said, “There is a sense that you can smell the smokiness of it”.

two men in jeans and yellow shirts dig hole
A dark line 2 feet below the ground appears to be ash from the 1788 fire that destroyed the church.

19th century expansion and collapse

Throughout the early 1800’s, the Cathedral was remodeled and bell towers added to the front facade. While the building was undergoing a major expansion in the 1850’s, the walls failed and caused a massive collapse. The present-day Cathedral is the result of the 1850’s reconstruction.

historical marker outside st. louis cathedral
Historical marker outside St. Louis Cathedral showing original 1727 church.

cathedral excavation featured on tv

Watch this Heart of Louisiana segment on the St. Louis Cathedral excavation.

fundraising to restore st. louis cathedral

The Catholic Community Foundation of New Orleans is attempting to raise the estimated $75 million needed to fully restore the French Quarter landmark. Gayle Benson, owner of the New Orleans Saints and Pelicans, is leading the effort, “I think people are starting to pay attention,” Benson said. She adds, “I feel very confident in the place where we are now”. Those interested in making donations to support the Cathedral restoration can do so through this website: Our City – Our Cathedral

gallery of artifacts from cathedral excavation

small blue bead held in tweezers
piece of green earthenware pottery in clear plastic bag in hand
small broken piece of multi-colored pottery in plastic bag.
small rusted pins in clear plastic bag with hand
black plastic gloves on hands holding broken piece of pottery
two pieces of etched brown pottery in hand wearing black glove
broken pieces of white clay pipe in hand wearing black glove
square yellowed piece of ivory with flower etching
small rusted piece of metal in hand wearing black glove
piece of a glass bottle
rusted piece of metal held in hand wearing black glove
tiny white bead in clear plastic bag with hand in black glove

Notre dame and its lessons for st. louis cathedral

In March, 2023, architects from St. Louis Cathedral in New Orleans visited the reconstruction site of Notre Dame in Paris which was damaged in a massive fire four years earlier. See what lessons were learned from Notre Dame and why St. Louis Cathedral is in need of major restoration. A look deep inside the New Orleans landmark shows signs of significant deterioration. Click here to learn more and view the documentary Saving St. Louis – A New Orleans Icon.

rooftop view of stone flying buttresses and scaffolding outside Notre Dame
Roof view of stone flying buttresses at rear exterior of Notre Dame

a world-class lesson in restoring a cathedral

Click here for a fascinating look inside Notre Dame and St. Louis Cathedrals.

Written by:
Dave McNamara
Published on:
February 19, 2024
Thoughts:
1 Comment

Categories: Featured, New Orleans

Reader Interactions

Comments

  1. Matthew H Constant

    February 22, 2024 at 3:30 pm

    Amazing at the many-faceted layers of historical significance in St. Louis Cathedral.
    It’s well worth preserving this jewel in the city’s history.

    Reply

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