Mayor Highlights Engineering Progress On Alton Sinkhole

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ALTON - Alton Mayor David Goins provided another update on the Alton sinkhole at the Gordon More Park soccer field on Wednesday, Feb. 11, 2026. He said testing is continuing as the city awaits a report on how to fix the damage.

The drone photos by Doug Booten show the progress and the present view of the work on the Alton sinkhole.

“The sinkhole is completely drained, and SCI Engineering is still doing tests and analyzing it,” Goins said.

Mayor Goins said the winter that began in late 2025 and continued into February 2026 allowed a considerable amount of work to be completed because of a lack of constant snowfall or ice. He said the weather conditions this winter helped SCI Engineering make progress with its testing. He said he was pleased with the drainage progress that has now entered the testing phase.

Goins said an engineering team has been testing to make sure there is no movement. “Everything is apparently stabilized underground, the sinkhole, which is a good thing, he said from the initial tests.

The city is still waiting for results and a report on how to address the damage, Goins said.

“We hope the overall report will be done soon so we can figure out how to remediate the hole."

The sinkhole collapse began on June 26, 2024, at the park’s soccer field. The field was not in use when the collapse occurred, and no injuries were reported.

SCI Engineering has previously said it planned to drill small testing points into the ground surrounding the sinkhole as part of its investigation, with some points inside the sinkhole and others around its perimeter. The tests involve pushing a metal probe into the soil to measure moisture, pressure, and soil strength.

Thomas Casey of SCI Engineering was hired as an independent consultant for the city of Alton to oversee the sinkhole study. Casey is overseeing the study, which includes drilling small test points around the affected area to assess soil pressure, moisture and strength.

City officials continue to monitor the situation as SCI advances its investigation.

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