NCMA > Welcome > 2009 Issues > September 2009 Issue

In the September 2009 Hardscape Issue:

Herrick Street Bridge
The list of possible uses for segmental retaining wall (SRW) systems continues to grow. The latest success story comes out of Rensselaer, New York. The city of Rensselaer needed a site solution that would not only be aesthetically pleasing, but would also create additional roadway access to one of the busiest rail stations in the state of New York.


Special Considerations for Tall SRW Walls
Taller walls often have special concerns that are not significant issues for shorter walls. Given their height, taller walls will influence and be influenced by a much larger portion of a site, so project design professional(s) must pay careful attention to site conditions well beyond the location of the SRW wall face and well below the SRW system.


Fences, Railings & Traffic Barriers
Often fences, stair rails, guide rails, or concrete traffic barriers are needed behind a segmental retaining wall (SRW). With proper design and installation, a variety of structural and aesthetic features can be placed at the top of a SRW wall.


Detail of the Month
The layout of curves and corners for SRWs requires planning by both the design engineer and contractor. The varying horizontal setback per course among different types of SRW units must be considered prior to construction.