KU Student Maps US 50 Sinkholes

By: AP
By: AP

LAWRENCE, Kan. (AP) _ A University of Kansas researcher is
mapping sinkholes along U.S. 50 near Hutchinson that are caused by
huge underground salt beds being dissolved by groundwater.

The dissolving salt beds cause surface subsidence, which leads
to costly repairs. Research by first-year geology graduate student
A.J. Herrs could provide answers that could save taxpayer dollars.

Herrs, who was raised on a farm in Clay Center, said the highway
has been repaved several times in the past decade because of two
major sinkholes. To plot the sinkholes precisely, Herrs is using
state-of-the-art technology called LiDAR, for Light Detection and

He says that learning the rate of subsidence would help highway
officials plan resurfacing projects or new roads.

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