Miami-Dade County, Florida, 2011 – 2013 The Miami-Dade County Water and Sewer Department required an aging sewage line under the Government Cut, a channel between
Excelsior, Minnesota, 2013 As part of the Excelsior Area Improvement project, a 4-foot diameter tunnel was designed to carry a new 24-inch Forcemain under Highway
A soil grouting program to treat cohesionless sandy soil to facilitate the installation of a new tunnel below an active railway.
ECO designed and directed a pre-excavation grouting program for a tunnels crossing a major artery in Columbus, Ohio.
Multiple pass multiple phase grouting program to consolidate soil below a busy road artery to facilitate the mining of a tunnel
A pre-excavation grouting program in highly silty soils was designed and directed to facilitate the mining of a series of tunnels below active railway tracks