Temporary repairs at mile marker 30 on July 6, 2018. (Hawaii DOT photo)

The Hawaii Department of Transportation (HDOT) continues emergency repairs to Mamalahoa Highway (Route 11) in Volcano following the seismic activity associated with the activity at the lower East Rift Zone of Kilauea Volcano. A 24-hour single lane restriction is scheduled to address surface repairs on Mamalahoa Highway at mile marker 29.3.

Between April 30 and Aug. 4, 2018, the USGS Hawaiian Volcano Observatory recorded approximately 60,000 earthquakes — with 4,400 of those earthquakes measured at a magnitude of 3 or greater and the largest measuring at moment magnitude of 6.9. The seismic activity contributed to the formation of rifts under Mamalahoa Highway (Route 11) near the entrance to Hawaii Volcanoes National Park between mile markers 28 and 30.

From July 6 to present, HDOT has repaired subsurface voids at mile markers 28.7, 30.05, 30.1, 30.6, and 31.7 along with embankment repair at mile marker 30, and has planned repairs at mile markers 28.7, 29.1 and 29.3. Ground truthing tests, including boring and camera reconnaissance, and ground penetrating radar, were used to determine the size and depth of the subsurface voids prior to beginning repairs.

This portion of Highway 11 will continue to be monitored by HDOT using cameras at http://ops.punatraffic.com/

For more information, visit hidot.hawaii.gov.

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