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Spiral Lining Solution For Indiana Culverts
“Indiana Reline was required to comply with CSX railroad policies for construction near active rail lines, including keeping all equipment and material at least 13 feet from the center of any line, and having a railroad flagman present at all times during construction,” said Bates.
After mobilization and general project set-up and equipment unloading, Indiana Reline established a coffer dam and erosion control measures. After dewatering, the existing concrete paved invert was removed and the culvert cleaned. Blocking, bracing and two-inch PVC grout tubes were installed.
“In lieu of runners, our crews utilized a unique method on the invert of the host pipe to facilitate easier installation by creating a smooth surface over which to install the liner,” Bates said. “Liner was wound at an inside diameter of 54.5 inches with an outside diameter of 56 inches.”
After successful installation of the liner, wood struts were installed to prevent deformation of the liner during the annular space grouting. Two-foot thick concrete bulkheads were constructed at each end of the lined culvert to contain the cellular grout. After the initial cure period the wood struts were removed and the bulkheads were faced off with mortar.
The 246-foot culvert was lined first followed by the 221-foot culvert.
Construction began in mid-December 2011 and was completed in mid-April 2012. Several weather delays slowed progress of the work.
Indiana Reline and INDOT were pleased with the outcome of the project. “As with any innovative project there are many challenges to overcome, this project was no exception,” said the INDOT spokesperson.
“Machine changes and the process of spiral wound pipe had to be tweaked. This tweaking was successful and moved along according to plan. Indiana Reline and Sekisui representatives were very accommodating during this entire process and are giving INDOT a successful project.”
FOR MORE INFO:
Indiana Reline, (877) 533-5040, www.indianareline.com
Sekisui SPR Americas, (678) 510-1820, www.sekisui spr.com