American Society of Civil Engineers

I-78 and PA-33 Sinkhole Mitigation Measures

by Michael Perlow, Jr., P.E., (MichaelPerlowJr.Com, 443 Main Street, East Greenville, Pa 18041 E-mail: and Michael Franceschina, (Lehigh University - Civil & Environmental Engineering Department, Fritz Engineering Lab, 13 East Packer Ave, Bethlehem, PA 18015 E-mail:
Section: Geotechnical Engineering Construction Problems, pp. 2434-2443, (doi:

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Document type: Conference Proceeding Paper
Part of: GeoFlorida 2010: Advances in Analysis, Modeling & Design
Abstract: The design, construction and performance of two major Lehigh Valley PA highways are presented as well as special geohazard mitigation measures that were developed for I-78 based upon the PA-33 sinkhole history. The geologic setting, sinkhole history, and subsurface conditions of both I-78 and PA-33 are compared and contrasted. An update of the PA-33 sinkhole activity is presented along with proposed sinkhole mitigation measures currently under consideration. Sinkhole risks posed by planned residential development along I-78 are highlighted along with plans for an expanded Schantz Spring groundwater protection program.

ASCE Subject Headings:
Residential location