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Vol. XV • No. 23
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Ashley Rittenhouse / ODOT photo
In Monroe County, the Ohio Department of Transportation (ODOT) is overseeing an emergency landslide repair and realignment project. Work on the $9.5 million undertaking involves the construction of a new 0.55mi. section of SR 537, which includes retaining walls, drainage structures and the removal of a portion of existing SR 537. “The pavement is slipping over the hillside, and a full closure of this route would result in a significant detour for drivers,” said Ashley Rittenhouse, ODOT District 10 public information officer. “This landslide has been on our radar for
By Cindy Riley
CEG CORRESPONDENT
a few years, but it worsened due to rain/flood events in 2018. There is visible slipping and cracking of the pavement.” Experienced geotechnical engineers search the state regularly, looking for potential hazards. According to Rittenhouse, landslides in the area are not unexpected. “The hilly terrain in southeastern Ohio, coupled with moisture from heavy rains, causes the landslides that we see.” Since this is a realignment project, much of the site was essentially undisturbed ground along hilly terrain that is typical of southeastern Ohio. Initial steps that had to be taken by construction crews included the clearing of trees within the project limits and borrow/waste area.
Two retaining walls will be constructed as part of the project, involving drilled shafts and installation of concrete lagging panels. Four culverts also will be installed. “This work involves excavating the culvert trench to grade, placing appropriate bedding material, installing the culvert and backfilling the culvert with appropriate material,” Rittenhouse said. “Additionally, concrete headwalls will be installed on the inlet/outlet of each of the proposed culverts.” The removal of a portion of existing SR 537 is a key part of the assignment. see LANDSLIDE page 4