CADD files for an example boardwalk with composite decking over timber bents on helical piles. Boardwalk has wood railings. Boardwalk bents are fairly close together and not high off the ground. Helical pile head fixity is made rigid by larger multi-bolt caps. This is an older style boardwalk design preferred by some for its rustic look. Magnum K-braces (see Other Foundation Products) are recommended for improved lateral bracing and lateral performance (anti-sway) where boardwalk deck height exceeds 30-inches above ground. Where boardwalk heights exceed 60-inches above grade, Magnum helical anchors installed at a 45 deg angle with MHC1080 tie-back caps clipped to the center of bents are recommended every other bent for lateral stability. Vehicular loads used to design this boardwalk are unknown and structural members should be checked by the design professional for project specific load conditions. Nonetheless, this example provides a glimpse as to how many boardwalks across wetlands and shallow water are constructed.
The drawings and design(s) contained in these documents are based on a specific project, location, time, and soil profile for which they were prepared. Obviously, drawings and design requirements are highly dependent on project location, local practice, prevailing codes, and soil profile conditions. Some of the drawing examples are out of date and based on older codes and practices. These drawings and designs are examples intended to be used by design professionals for informational purposes only. Magnum Piering, Inc. makes no assertions as to the accuracy, completeness, compliance with any codes, or applicability of such information for any specific project or condition, nor do we purport the fitness of the designs shown for any intended purpose.
The Design Professional or Engineer of Record should use this information after some due diligence and edit and supplement them to suit any specific purpose. Design Professionals and Engineers are encouraged to contact Magnum Piering and Magnum Geo-Solutions with any questions about the example designs or to seek assistance with Magnum product selection and specification.
Copyright (C) 2017: The information contained in these downloadable documents is the intellectual property of Magnum Piering, Inc. and Magnum Geo-Solutions, LLC and is disclosed solely for use in developing, costing and installing a geo-structural solution using Magnum Piering products. Copying or distributing this information for any purpose, other than the intended use, without written consent of Magnum Piering, and specifically copying or distributing the information for specifying or marketing foundation products manufactured by others, is expressly forbidden.