Carnegie Museums Parking Garage

The Carnegie Museums Parking Garage required an engineering inspection of the structural and waterproofing system of the parking garage.

• O&S discovered failure of the waterproofing systems, namely failed joint sealant that has allowed for water seepage through the slab joints causing failure of embedded steel slab connections.
• Failure of waterproofing in landscaping planters has led to saturation to the concrete below, causing freeze-thaw and corrosion damage to the girders, columns, and floor slabs below. Efflorescence had developed in some locations.
• Metal support pans for the stairs had corroded significantly in certain locations and were becoming structurally unsound. Corrosion to these pans was causing the concrete tread to crack and spall.
• Limited budgets required the development and implementation of annually phased repair programs.