Microtunneling is the best pipe jacking method for wet and unstable ground conditions or contaminated soils. Microtunneling is generally defined as remotely controlled pipe jacking (personnel-entry is not required) whereby the soils at the cutter face are controlled to maintain balance. Iowa Trenchless personnel have driven many tunnels using the micro tunneling method with thousands of feet of pipe installed.

Iowa Trenchless Personnel launching
Akkerman Microtunneling machine in Appleton, WI..

Microtunneling machine exiting retrieval pit in Appleton, WI.