Putney Garage
Putney Garage
Project Details:
Owner: Sauer Properties
General Contractor: L.F. Jennings
Date of Work: January 2020 - February 2020
Engineer: Froehling & Robertson, Inc.
Approximate Key Quantities: Controlled Modulus Columns (CMC)® - 290 EA.
Description:
Ground Conditions:
Solution:
In order to minimize settlement, Menard proposed CMC rigid inclusions. The existing asphalt parking lot served as the working platform. Menard anticipated having to predrill the upper parking lot surface pavement and underlying fills, but was able to avoid predrilling by using a very powerful Bauer BG 24 drill rig. The CMC elements reached an average depth of 58 ft and a maximum depth of 65 ft. To ensure that the tops of the CMC elements were at the required elevations for foundation construction, Menard used a mini excavator to cut off the tops of the elements.
The design provided a maximum of 1 in of post-construction settlement with a ½-in differential settlement, meeting the performance criteria for the parking garage.
To support the 790-space, five-story parking garage, Menard USA installed 289 CMCs to a maximum depth of 65 ft. All work was done in one continuous phase and met the client’s requirements for quality, schedule and safety.
