Industrial Short Line Tub Crossing Repair

Tub grade crossing repair by CJGeo using polyurethane grouting.

Crossing Use:  

Heavy haul freight (industrial scrap), urban street by short line 

Problem:

12 tub-style grade crossing panels developed a 2.5″ belly.  The railway’s FRA inspector directed the railway to address the settlement of the crossing panels to bring the crossing geometry back into compliance.  Along with being non-compliant from a track geometry perspective, accumulation of water below the panels was causing deterioration of the adjacent asphalt pavement.  With loading, the panels deflected, which also caused deterioration of the crossing panels at shared joints.  

Constraints:

The belly only affected one travel lane of the roadway, but repairs had to not affect the other lane, so that traffic could be maintained to the adjacent industrial properties.  Due to rail traffic schedules, the repair had to allow for rail traffic during the repair.

Solution:

Tub grade crossing repair by CJGeo using polyurethane grouting.

Grouting the crossing.

High density polyurethane polyurethane grouting to stabilize and lift the affected modular grade crossing panels.  

Supplemental anchor bolting was also used to ensure longterm integrity of the repair.

Result:

CJGeo modular grade crossing repair crew filled the voids and corrected settlement in less than a day.   The entire repair was completed in less than one day.  

Two trains passed through the crossing over the panels being repaired during the repair.  This did not affect the integrity or schedule of the repair.