We do RCB Repair. This concrete box culvert extension was not doweled to the original structure and eventually a six-inch separation occurred.
Grout Scouts, Inc. doweled the extension to the original structure with rebar; formed and pressure grouted a 3 1/2 inch collar on the inside; pumped grout to build a new bottom and restore the flow line; and then pressure grouted the outside of the culvert to fill voids.
