PROVO CITY CENTER LDS TEMPLE
Project Confirmation Number: 9817
Entry Category Historic Restoration:
Restoration implies returning a building to its original condition. Must be listed as historic or eligible for such status.
100 S University Ave
Provo, Utah 84601
Brief description of the project:
The Provo City Center LDS Temple was built from the burned-out shell of the historic Provo Stake Tabernacle, built in 1893. The conversion required rebuilding those portions of the original masonry damaged by the fire, strengthening the old masonry shell, rebuilding the roof, and replacing the historic center tower that was removed in 1915.
Size of Building:
Building: 93,000 sf, Total: 230,618 sf
Amount of Masonry Used (include all types and number of units):
This Masonry Restoration involved 100% mortar joint removal and replacement with a historic matching lime mortar. Thousands of damaged bricks were replaced in the exterior walls and the north, south and east gables were completely rebuilt. The top 12” to 24” of all exterior walls were mostly rebuilt, which included the decorative corbelling. A portion of the masonry was rebuilt at the northeast turret, which had been displaced due to twisting of structural beams when the roof collapsed during the fire. The masonry areas above the north, south and east entrances, had experienced excessive settling damage which required extensive rebuilding. Work also included replacing hundreds of stone units, including band courses, windowsills, and arch stones. Many other existing stone units were repaired in place using patching materials. New stone features including stone transoms were also added above windows, the stone niches which previously had been constructed using plaster, and also the massive “Holiness To The Lord” stone was added at the East gable. The entire building was chemically cleaned and then treated with a protective chemical sealer. Child Enterprises also installed new brick masonry throughout the temple site including new brick piers, signs, and masonry work at the new utility building.
Overall about 20,000 brick were used on the building. 7,000 brick were used to rebuild the north, south, and east gables and another 13,000 brick were used to replace deteriorated units and to rebuild areas at top of walls, and over entrances, and at other areas.
30,000 new custom matched brick were used to build the utility building, dumpster, and new fence piers.
30,000 CMU block were installed throughout the project including elevator shafts, gables, parking structure, utility building, dumpster, and piers.
Approximately 400 stone units were installed on the building including new elements and replacement units.
Total planter walls stone caps: 3,529 lf
Total stone cladding: 19,648 sf
Total solid stone entry stair treads: 587 lf
Total column caps: 71
Total entry pavers: 3214 sf
Project completion date: December 2015
Explain the project and its unique use of masonry materials and techniques:
During construction, the building’s 6.8-million-pound exterior was stabilized, and then placed on 40-foot-high stilts for months while workers excavated the ground underneath for two basement levels. The project’s groundwater table was approximately 14 feet below grade. The team excavated down to 25 feet below grade for over 150,000 square feet and 40 feet below grade for approximately 15,000 square feet. This required the use of an extremely complex shoring and de-watering system.
Much of the materials that went into the building were custom-made to match the original Tabernacle’s exterior and finishes. Finding stone and brick that matched the original materials also proved to be challenging. Stone was brought in from all over the world to achieve the historic look and feel envisioned by the Church.
To protect the exterior shell, two layers of brick were removed from the entire interior perimeter of the structure; the remaining three layers of brick were then secured with steel helical ties. For additional stabilization, shotcrete was applied to two layers of rebar that was erected around the interior perimeter of the structure. Sensors installed on the pilings, as well as laser surveying equipment, were used to monitor the building’s movement.
The building stood on 146 individual steel pipes that were nine inches in diameter and 90 feet in length. Smaller micropiles helped hold up the main foundation of the structure. The shoring system used for holding the building in place was one-of-a-kind, designed and built specifically for the PCCT project.
The state-of-the-art craftsmanship of the PCCT is unmatched. To maintain the structure’s Victorian look, crews salvaged and restored the original brick from the 1880s building, found other stockpiles of brick in the area that came from the same time period and sourced other brick that looked as if it was from the same era and made all of it appear as one consistent exterior.
From the pre-construction process to completion, there were many challenges. One of the most enjoyable parts of the design and creation were the stone-carved beehives on the columns. Each one was cut to the 6” thick radius cap that was laser templated, cut on a water jet and then finished with a “windswept/antique” finish to match the historic architecture. The radius entry stairs on the east and west side posed a challenge, but through good details, shop drawings and an eye to detail in the install, a great finish product was achieved.
The greatest challenge that we overcame was the color selection from the quarry. We worked hard to meet the expectations of the architect and the owner. Countless hours and effort where spent on this speciation. The result is a beautifully restored, authentic centerpiece for the entire community.
R J MASONRY
THE CHURCH OF JESUS CHRIST
OF LATTER-DAY SAINTS
ASH GROVE PACKAGING
DELTA STONE PRODUCTS
Click on photos below to enlarge.
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