Recrowning the Jewel of the French Quarter

Words: Precision masonry Inc.The St. Louis Cathedral in New Orleans, La., was built in 1793 and renovated in 1851. It is the oldest continuously operating cathedral in the United States. The cathedral’s hallmark three-spire image is ubiquitous and considered a symbol of New Orleans. Overlooking Jackson Square, it is often the backdrop for everything from live musical performances to films.

Following the major renovation in 1851, the cathedral’s original 1819 bell was incorporated into the new design.

However, after many years, one of St. Louis Cathedral’s famous three spires had structurally declined to the point of great concern. Affected in the deterioration was the housing of the original 1819 church bell. The pilasters on the spire were pulling away from the rest of the structure, contributing to a shifting masonry shell and exterior cracking.

Throughout any potential repair program, technicians would need to leave the appearance of this symbolic structure unaltered and normal operations undisturbed.

Masonry Solutions International (MSI) began by evaluating the spire and its pilasters to determine the extent of the separation and damage. MSI technicians used fiber-optic borescoping and ground-penetrating radar to non-destructively evaluate any underlying structural conditions.

Once a clear understanding of the situation was attained, MSI worked with the design team to develop a multi-pronged approach. The first phase of the program called for pinning the separating pilasters back to the main structure.

MSI designed, manufactured, and installed custom Gruenstark fabric anchorage that was both non-corrosive and non-epoxy based, tying the large stone pillars to the rear supports.

MSI laboratory engineers then developed a customized, compatible CIF, one that would match the characteristics of the spire’s masonry and promote long-term stability, breathability, and sympathetic performance.

Utilizing a low-pressure injection system, MSI techs then carefully injected the spire, immobilizing the masonry shell to prevent future cracking.

Throughout Masonry Solutions’ work, the church bells continued to ring out from St. Louis Cathedral, an outcome not possible with the alternatives originally considered.
Properties and Advantages of Brick Cavity Walls
June 2026

Many compound words are self-explanatory "descriptive names." Sunglasses are glasses that block the sun. A fireplace is a place to build a fire. A cavity wall is exactly that: a wall assembly that contains a cavity. Previously, this concept was used prim

Technical Talks
Read More
The “Small Job” Safety Trap: Why Safety Sometimes Fades When the Spotlight Disappears
June 2026

Before I was fortunate enough to lead Malta Dynamics, I spent a couple of years as a traveling salesman for the company. My territory covered the entire country (and some beyond), and in a typical year, I visited more than 100 jobsites across nearly every

Greg Brown
Safety Library
Read More
Supporting Mental Health in the Workplace
June 2026

As a business owner and leader, taking the mental health of your employees seriously and understanding how it can impact their work is essential. In fact, one in five adults experiences a mental health condition annually. Addressing mental health is more

Patrick Cunningham
MAP Partner
Read More
Bonding with Masonry 2026: Q2
June 2026

This issue’s questions come from a Mason Contractor and an Engineer. What questions do you have? Send them to info@masonrymagazine.com, attention Technical Talk.

David Biggs
Bonding with Masonry
Read More