[portfolio_slideshow timeout=5000]

Montana Rail Link

Gallatin River Bank Improvement Project

  • ERG prepared designs and obtained permits for construction of rock riprap protection on the Gallatin River upstream from Logan, MT. 
  • River migration had caused 500 feet of rail line embankment to be eroded, potentially compromising the integrity of the track’s loading prism. 
  • ERG conducted a site inspection with representatives from the pertinent regulatory agencies, developed a design incorporating agency requests with engineering requirements, and coordinated the application for and receipt of the appropriate Clean Water Act and Floodplain permits. 
  • The design included a bench located at the two-year recurrence interval elevation for riparian vegetation.