American Society of Civil Engineers

Dishman Lane Collapse, Bowling Green, Kentucky

by Patricia Kambesis, (Center for Cave and Karst Studies, Western Kentucky University), Nick Crawford, (Center for Cave and Karst Studies, Western Kentucky University), Leigh Ann Croft, (Center for Cave and Karst Studies, Western Kentucky University), Rolland Moore, (Center for Cave and Karst Studies, Western Kentucky University), and Rhonda Pfaff, (Hoffman Environmental Research Institute, Western Kentucky University)
Section: The Central Kentucky Karst, pp. 404-414, (doi:

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Document type: Conference Proceeding Paper
Part of: Sinkholes and the Engineering and Environmental Impacts of Karst
Abstract: A catastrophic sinkhole collapse occurred at Dishman Lane and Mill Valley Road in Bowling Green, Kentucky during evening rush hour traffic on February 25, 2002. The sinkhole, which collapsed into the main stream passage of State Trooper Cave, was approximately 60 meters across and 7 meters deep on its deepest side. Although four vehicles were stranded in the collapse, no one was hurt. The Center for Cave and Karst Studies (CCKS) at Western Kentucky University performed an investigation of the site. The investigation utilized surface surveys, Global Positioning Systems (GPS), cave and surface surveys, and a series of microgravity traverses in order to assess the potential for expansion of the existing collapse, and the possibility of new sinkholes forming in the immediate area. The city of Bowling Green provided drill log information from a series often cores that they had drilled within and adjacent to the collapse. The results of the investigation revealed that the Dishman collapse was a combination of a bedrock and regolith collapse. Based on recommendations from CCKS’s study, the city of Bowling Green initiated a remediation plan which involved digging out the sinkhole to bedrock, installing a culvert, refilling the sinkhole with graded rock, and repaving the road. The cost of the project was one million dollars.

ASCE Subject Headings:
Highways and roads