Accelerated Bridge Construction – Geosynthetic Reinforced Soil – Integrated Bridge System (Team Page)

Overview of Innovation

This initiative is a continuation of EDC-2.  Instead of conventional bridge support technology, Geosynthetic Reinforced Soil (GRS) Integrated Bridge System (IBS) technology uses alternating layers of compacted granular fill material and fabric sheets of geotextile reinforcement to provide support for the bridge. GRS also provides a smooth transition from the bridge onto the roadway, and alleviates the "bump at the bridge" problem caused by uneven settlement between the bridge and approaching roadway. The technology offers unique advantages in the construction of small bridges, including:

  • Reduced construction time and cost, with costs reduced 25 to 60 percent from conventional construction methods.
  • Easy to build with common equipment and materials; easy to maintain because of fewer parts.
  • Flexible design that’s easily modified in the field for unforeseen site conditions, including unfavorable weather conditions.