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Guatemala City sinkhole from May of 2010, over 300-ft deep and 60-ft wide
Geologic Hazards

Huge Sinkhole over 30-stories Deep Opens in Guatemala City

June 1, 2010 rockman Geologic Hazards Comments Off on Huge Sinkhole over 30-stories Deep Opens in Guatemala City

Tropical Storm Agatha that hammered Guatemala over the weekend also was likely a catalyst in the final collapse of a massive 100-ft wide by at least 200-ft deep sinkhole in Guatemala City. The sinkhole swallowed […]

cairo_sinkhole_swallows_car
Failures

Video of Car Swallowed by Sinkhole Related to Tunneling in Cairo, Egypt

September 29, 2009 rockman Failures Comments Off on Video of Car Swallowed by Sinkhole Related to Tunneling in Cairo, Egypt

cairo_sinkhole_swallows_car

On September 3, a sinkhole opened up on a downtown Cairo street, swallowing the car pictured here. According to the description accompanying the video uploaded to YouTube by TheDailyNewsEgypt, the sinkhole was related to tunneling activities for the Cairo Metro line that is currently under construction. Click through for the video. […]

New 49ers Stadium
Project Related

Geotechnical Investigation for New San Francisco 49ers Stadium

September 29, 2010 rockman Project Related Comments Off on Geotechnical Investigation for New San Francisco 49ers Stadium

Geotechnical firm Treadwell and Rollo has performed the geotechnical investigation for the new San Francisco 49ers NFL Stadium to be constructed in Santa Clara, California. In addition to soil borings, CPT and seismic CPT tests […]