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December 29, 2011 7:00 AM CST

Seating repair at University of Wisconsin-River Falls

Hardscaping case study

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UWRF limestone seating tiers in use after repair.

UWRF limestone seating tiers in use after repair.
A popular outdoor amphitheatre on the campus of the University of Wisconsin-River Falls (UWRF) got a new lease on life last year, when crumbling limestone seating tiers were replaced with Versa-Lok seat walls and integrated stairs.

Nothing beats sitting outside on a beautiful summer’s eve listening to music or enjoying a play. That’s what Dr. Melvin Wall envisioned for the campus of UWRF in the 1960s, after he and his wife toured Northern Italy and fell in love with an amphitheatre built in the Greco-Roman style. Wall, chairman of the university’s Plant and Earth Science Department and head of the Campus Planning Committee, took the idea to the administration and garnered the support of the president.

Wall proposed that an outdoor amphitheatre be built on the south end of the campus near South Fork, or “Pete’s Creek.” He enlisted the help of students, the administration and alumni, and a former student ponied up a $20,000 matching grant. Hundreds of students, faculty and friends of the university worked in mud to level the area and haul in large limestone blocks to create the seating tiers.

The Minnesota Orchestra performed at the dedication ceremony of the Melvin Wall Amphitheatre in 1972. Since, it has become a favorite gathering spot for UWRF students and area residents alike, hosting everything from commencement ceremonies to a popular weekly summer music series.

But the elements took their toll on the amphitheatre, according to Joe McIntosh, UWRF grounds supervisor.

Before
Before
“Over time, the limestone had kind of deteriorated, so we put in a proposal to have it redone,” McIntosh explains. “We looked at a couple of different types of natural stone and also the Versa-Lok product. The natural stone was out of our budget range, so we went with the Versa-Lok.”

The project began in Spring 2009 and was completed later that summer. The removal of the limestone blocks and installation of the new seat walls presented some challenges. Two massive oak trees shade the center of the facility and had to be preserved.

“We took some protective measures and tried to keep the contractors away from them as much as we could,” says McIntosh. “Then we gave them some product to enhance their root system. So far, they look pretty good.”

The seat walls were built using Versa-Lok’s Weathered Mosaic segmental retaining wall system, which employs three shapes of blocks in a four-unit panel to create a random-pattern appearance. The product’s weathered texture more closely resembles the natural limestone it replaced.

The long, arcing seat walls are more than 1,400 feet long and about 1.5 feet tall. Stairs are integrated into the seating tiers at several points. More than 3,000 square feet of Versa-Lok were used on the project.

The old limestone was put back into service after it was removed from the amphitheatre’s seating, says McIntosh.

“We saved most of it and have it stored,” he says. “We’ve been using it fairly steadily the past couple of years on some small landscaping projects around campus.” Some of it was even returned to the amphitheatre and used in the stair landings.

After
After
The Melvin Wall Amphitheatre rehabilitation project was completed in Fall 2009 and landscaping was finished the following year. Total project cost was around $150,000. It remains the only outdoor amphitheatre on any Wisconsin college campus and one of the few in the country located on a campus.

Design on this project was done by Cedar Corporation, the contractor was Pember Excavating, and the manufacturer was Willow Creek Concrete Products.

Originally published in Masonry magazine.


About the Author

Karl Bremer is a Communications Specialist for VERSA-LOK Retaining Wall Systems.

 

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