University of Rochester Orthopaedics Clinic

Project Details:

Owner: University of Rochester Medical Center
General Contractor: LaChase Construction Service, LLC
Date of Work: May 2021 - June 2021
Engineer: Jensen/BRV Engineering, PLLC
Approximate Key Quantities:  Controlled Modulus Column (CMC)® rigid inclusions - 362 EA


Project Overview:

In 2019, the University of Rochester proposed the construction of the 330,000 sq-ft UR Medicine Orthopaedics & Physical Performance Center. The $240 million project would produce one of the largest and most comprehensive ambulatory orthopaedics facilities in the United States.
The new four-story building – with the potential to expand to seven stories – will be built at the Marketplace Mall in Henrietta, NY. The new center will be nearly three times the size of URMC’s largest orthopaedic outpatient facility at Clinton Crossings, which is 120,000 sq. ft and routinely sees 17,000 patients a month. The largest capital project in the university’s history, URMC is expanding to meet current and future patient demand for musculoskeletal services for patients of all ages. It has seen a 25 percent increase in orthopaedic surgery cases and a 60 percent increase in ambulatory visits over the past seven years.
Due to the loose nature of the soils at the site, Menard Group USA was contracted to provide ground improvement in a 42,000 sq-ft area to support the new building. The selected technique was Controlled Modulus Column (CMC)® rigid inclusions.

Ground Conditions:

The soils at the site consisted of historic fill underlain by 10 ft of medium dense silty sand. Below the medium dense silty sand was 20 ft of loose silty sand on top of bedrock. Given the high column loads, settlement in the loose silty sand would be above the allowable settlement criteria of 1/2 in without ground improvement.


Aggregate piers were considered for ground improvement. However, it was determined that CMCs would be more effective in supporting the buildings footings due to the required high bearing capacity. CMCs were also more cost-effective than driven piles.

A total of 362 CMCs were installed to an average depth of 23 ft and a maximum depth of 35 ft. Menard designed a layout of CMCs at each footing to support column loads up to 1,100 kips. Maximum design bearing pressures for the spread footings reached 7.5 ksf. The footings were designed to accommodate the possible future addition of three more stories. The design provided for less than a 1/2 in of post-construction settlement, meeting the performance criteria of the new orthopaedic center.

As part of a major expansion by URMC, Menard Group USA installed CMCs to support a four-story orthopaedic center that could expand to seven stories in the future.

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