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Project Case Study
Pugh Street Municipal Parking Garage
Penn State University
The Pugh Street Municipal Parking Garage, situated on the campus of Penn
State University was in need of repair. Areas of the parking structure
had deteriorated so badly that sections of the Parking Garage had
to be closed. The foremost source of the severe deterioration was the
infiltration of water into the post tensioning cables. Restoration
of this project required the removal and replacement of the entire garage
façade as well as waterproofing the façade and parking deck
to protect the tendons. Our major battle was the repair of existing post
tension tendons that were cut under a previous repair contract to the
extent that we had to remove and replace the entire post tensioned parking
deck.
Nathan Contracting worked closely with the University as well as with
their engineer, Walker Parking Consultants to develop proper phasing of
the project since the areas to be repaired were scattered throughout the
garage and limited parking spaces were available throughout the construction
phase. Taking these two issues into consideration, we opted to modify
the specified latex concrete patching material and replaced it with a
rapid setting cement material. This modified concrete mix allowed areas
to be reopened to traffic without compromising the design strength thus
allowing the spall repairs to be completed in a continuous operation.
In order to properly mix the concrete, a mini-mobile latex mixing plant
was located in the basement of the garage.
The on site access of the mini-mobile latex mixing plant permitted us
to have a steady supply of material, when needed, which kept the project
moving at a steady pace.
This project was awarded the 2001
International Parking Award of Excellence presented by the International
Parking Institute.
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