Concrete Jack’s experienced concrete leveling crews save municipalities and government organizations money. By leveling existing concrete which has become unstable or settled, Concrete Jack minimizes disruptions to use patterns by citizens and visitors and saves significant amounts of money when compared to demolition and repour. Concrete Jack uses both the foam jacking and slab jacking processes for municipalities and government organizations.
Some recent municipal projects completed by Concrete Jack include lifting the 12th street entrance ramp on the Downtown Expressway, which is operated by the Richmond Metropolitan Authority in Richmond, Virginia. Roadway slab settlement had created a three inch differential between two slabs across the direction of travel, which was causing motorists 
to come to a near stop, which caused safety concerns because they couldn’t easily maintain merge speed. Repairs took a total of eight hours, and included pumping almost 10 cubic yards of soil-based grout under the roadway to fill voids and then realign the slabs to create a smooth traffic surface. The roadway was fully opened to all vehicular traffic immediately after repairs were completed.
Concrete Jack also lifted settled sidewalks at bridge approaches, around utilities and drop inlets along Route 10 in Chesterfield Virginia for the Chesterfield Residency of the Virginia Department of Transportation. Additionally, Concrete Jack raised and supported various sidewalk areas in Petersburg, Virginia, as part of the same project. Pedestrians were able to use the areas of concrete which were lifted during the leveling process and immediately afterwards, so no pedestrians were forced to walk through adjacent private property or cross the busy road as are common with sidewalk replacement. Disruptions to motorists were minimized by utilizing a rolling work zone with two attenuator trucks (provided by VDOT), with individual repairs taking around one hour.
York County Public Schools in Yorktown, Virginia, has also used Concrete Jack’s services to correct trip hazards in sidewalks at various public schools in the district. By raising and supporting existing sidewalks, safety hazards are quickly fixed, and there are no areas of fresh 
concrete for people to step in or graffiti during curing. All of the concrete repairs for York County Public Schools were opened for immediate use, so disruptions were minimal.
Concrete Jack has raised and leveled concrete as part of a trip hazard repair program for the Hampton Housing and Redevelopment Authority and leveled an interior floor for Norfolk Redevelopment and Housing Authority. Additionally, Concrete Jack provides turn key sidewalk trip hazard repair solutions for privately-held complexes subject to HUD safety inspections.
Concrete Jack recently raised two areas of railway/roadway on grade crossings for Charlotte Area Transit. Settlement of precast concrete crossing slabs was causing trains to have to slow down while traversing these crossings. In two nights, Concrete Jack was able to raise up the settled slabs so that the speed restriction could be removed. Previous cement-based grouting had failed to correct the problem, so Concrete Jack injected expanding polyurethane foam under the slabs in order to reduce the amount of burden on the underlying soils from the concrete leveling material.
The two photos below are before and after photos for a six inch trip hazard around a drop inlet along US10 in Petersburg, Virginia that Concrete Jack repairing using the concrete leveling process. After drilling holes through the concrete around the drop inlet structure (six holes total), Concrete Jack's crew injected sand-based grout under the concrete, which filled the void spaces around the drop inlet structure and then pushed the concrete back up. This repair took a total of 40 minutes, and the concrete sidewalk was open for pedestrian traffic during and immediately afterwards. The repair cost about 1/5 the cost of having the concrete torn out and replaced. The sidewalk along the driveway apron at the top right corner of the photo was also raised to repair a 2 inch trip hazard.
