Erosion of a river was encroaching on a rail bed owned by a Class I Railroad client, and the client attempted to stop the erosion by placing rip-rap along the embankment.  This attempt failed, and the client hired Pinnacle Engineering to recommend and implement a solution.

Pinnacle designed a solution for the erosion and secured appropriate permits from the U.S. Army Corps of Engineers to complete the repairs.  Working with a local contractor, Pinnacle created a keyway for the bottom of the slope, designed to resist extreme sheer from the rising river.  A new synthetic erosion control blanket was utilized near the top of the embankment to reduce the amount of riprap needed to protect the newly reconstructed embankment adjacent to the rail bed.  The keyway locked in the blanket so that both the riprap and the blanket were held in place.