A box culvert jacking required directional drilling for soil stabilization, pilot tube microtunneling for guide casing installation, and tunnel methods for box culvert installation. Auger boring methods were used to install steel casings for RCP crossings. A 1:3 grout was used for filling voids outside of the box culvert and as annular fill between the casings and their corresponding carrier pipes.
136 LF of 8’x7’ Box Culvert, 167 LF of 18” RCP, 83 LF of 24” RCP, 73 LF of 36” RCP
Gravely Sand, some silt and clay
- Auger Boring
- Horizontal Directional Drilling
- Pipe Jacking and Tunneling
- MicroTunneling (Pilot Tube Method)
- Soil Stabilization