After nearly two years of work, Superior Waterproofing & Restoration recently finished an exterior restoration of St. Louis Union Station. The $3 million project included 100,000 sq ft of stone facade and a 210-ft tall clock tower.

Local stone supplier, Architectural Stone, replaced the 9-ft clock tower crest. The monument features two bears holding the state seal, and wraps around the corner of the building. Its replacement required hand carving 45 individual pieces that had to be reassembled onsite. The original crest was deteriorated and patched and had to be replicated by looking at historic photos and consulting with historical experts over the course of six months.

The building's entire facade was tuckpointed, with 1-in. joints to ensure lasting performance. Contractors also spent thousands of hours cleaning and recreating ornamental features that had been worn away and severely stained over the past century.

[WEB EXTRA] For more details and photos, visit

Project Participants Project Participants

Owner: Park National Bank, Oak Park, Ill.

Property Manager: Jones Lang & LaSalle, St. Louis, Mo.

Masonry Contractor: Superior Waterproofing & Restoration Co., St. Louis, Mo.

Engineer: Walter P. Moore, Houston, Texas

Masonry Supplier: Architectural Stone, St. Louis, Mo.